Storage workflow (#1547)

* Modifies storage according to the new workflow

Adds test

Signed-off-by: mik-dass <mrinald7@gmail.com>

* Added e2e tests

Signed-off-by: mik-dass <mrinald7@gmail.com>

* Added comments for CreateArgs and DeleteFromConfigurationList

* Rebased the PR

Signed-off-by: mik-dass <mrinald7@gmail.com>

* Mereged storage e2e test with watch test

.travis.yml

@@ -77,13 +77,14 @@ jobs:
 
     - <<: *base-test
       stage: test
-      name: "Watch e2e tests"
+      name: "Watch and Storage e2e tests"
       script:
         - ./scripts/oc-cluster.sh
         - make bin
         - sudo cp odo /usr/bin
         - oc login -u developer
-        - make test-watch-e2e
+        - travis_wait make test-watch-e2e
+        - travis_wait make test-storage-e2e
 
     # test installation script on linux
     # - stage: test

Makefile

@@ -133,11 +133,16 @@ test-service-e2e:
 test-link-e2e:
 	go test -v github.com/openshift/odo/tests/integration --ginkgo.focus="odoLinkE2e" -ginkgo.slowSpecThreshold=$(SLOW_SPEC_THRESHOLD) -ginkgo.v -timeout $(TIMEOUT)
 
-# Run link e2e tests
+# Run watch e2e tests
 .PHONY: test-watch-e2e
 test-watch-e2e:
 	go test -v github.com/openshift/odo/tests/integration --ginkgo.focus="odoWatchE2e" -ginkgo.slowSpecThreshold=$(SLOW_SPEC_THRESHOLD) -ginkgo.v -timeout $(TIMEOUT)
 
+# Run storage e2e tests
+.PHONY: test-storage-e2e
+test-storage-e2e:
+	go test -v github.com/openshift/odo/tests/integration --ginkgo.focus="odoStorageE2e" -ginkgo.slowSpecThreshold=$(SLOW_SPEC_THRESHOLD) -ginkgo.v -timeout $(TIMEOUT)
+
 # Run login e2e tests
 .PHONY: test-odo-login-e2e
 test-odo-login-e2e:

pkg/component/component.go

@@ -356,12 +356,20 @@ func CreateComponent(client *occlient.Client, componentConfig config.LocalConfig
 	appName := componentConfig.GetApplication()
 	envVarsList := componentConfig.GetEnvVars()
 
+	// create and get the storage to be created/mounted during the component creation
+	storageList := getStorageFromConfig(&componentConfig)
+	storageToBeMounted, _, err := storage.Push(client, storageList, componentConfig.GetName(), componentConfig.GetApplication(), false)
+	if err != nil {
+		return err
+	}
+
 	log.Successf("Initializing '%s' component", cmpName)
 	createArgs := occlient.CreateArgs{
-		Name:            cmpName,
-		ImageName:       cmpType,
-		ApplicationName: appName,
-		EnvVars:         envVarsList.ToStringSlice(),
+		Name:               cmpName,
+		ImageName:          cmpType,
+		ApplicationName:    appName,
+		EnvVars:            envVarsList.ToStringSlice(),
+		StorageToBeMounted: storageToBeMounted,
 	}
 	createArgs.SourceType = cmpSrcType
 	createArgs.SourcePath = componentConfig.GetSourceLocation()
@@ -897,6 +905,13 @@ func Update(client *occlient.Client, componentSettings config.LocalConfigInfo, n
 	cmpPorts := componentSettings.GetPorts()
 	envVarsList := componentSettings.GetEnvVars()
 
+	// retrieve the list of storages to create/mount and unmount
+	storageList := getStorageFromConfig(&componentSettings)
+	storageToMount, storageToUnMount, err := storage.Push(client, storageList, componentSettings.GetName(), componentSettings.GetApplication(), true)
+	if err != nil {
+		return errors.Wrapf(err, "unable to get storage to mount and unmount")
+	}
+
 	// Retrieve the old source type
 	oldSourceType, _, err := GetComponentSource(client, componentName, applicationName)
 	if err != nil {
@@ -976,12 +991,13 @@ func Update(client *occlient.Client, componentSettings config.LocalConfigInfo, n
 		return err
 	}
 	updateComponentParams := occlient.UpdateComponentParams{
-		CommonObjectMeta:  commonObjectMeta,
-		ImageMeta:         commonImageMeta,
-		ResourceLimits:    resourceLimits,
-		EnvVars:           evl,
-		DcRollOutWaitCond: occlient.IsDCRolledOut,
-		ExistingDC:        currentDC,
+		CommonObjectMeta:     commonObjectMeta,
+		ImageMeta:            commonImageMeta,
+		ResourceLimits:       resourceLimits,
+		DcRollOutWaitCond:    occlient.IsDCRolledOut,
+		ExistingDC:           currentDC,
+		StorageToBeMounted:   storageToMount,
+		StorageToBeUnMounted: storageToUnMount,
 	}
 	// STEP 2. Determine what the new source is going to be
 
@@ -1275,3 +1291,13 @@ func isEmpty(name string) (bool, error) {
 	}
 	return false, err // Either not empty or error, suits both cases
 }
+
+// getStorageFromConfig gets all the storage from the config
+// returns a list of storage in storage struct format
+func getStorageFromConfig(localConfig *config.LocalConfigInfo) storage.StorageList {
+	storageList := storage.StorageList{}
+	for _, storageVar := range localConfig.GetStorage() {
+		storageList.Items = append(storageList.Items, storage.GetMachineReadableFormat(storageVar.Name, storageVar.Size, storageVar.Path))
+	}
+	return storageList
+}

pkg/config/config.go

@@ -23,9 +23,14 @@ const (
 	localConfigAPIVersion = "odo.openshift.io/v1alpha1"
 )
 
+type ComponentStorageSettings struct {
+	Name string `yaml:"Name,omitempty"`
+	Size string `yaml:"Size,omitempty"`
+	Path string `yaml:"Path,omitempty"`
+}
+
 // ComponentSettings holds all component related information
 type ComponentSettings struct {
-
 	// The builder image to use
 	Type *string `yaml:"Type,omitempty"`
 
@@ -53,6 +58,8 @@ type ComponentSettings struct {
 
 	MaxMemory *string `yaml:"MaxMemory,omitempty"`
 
+	Storage *[]ComponentStorageSettings `yaml:"Storage,omitempty"`
+
 	// Ignore if set to true then odoignore file should be considered
 	Ignore *bool `yaml:"Ignore,omitempty"`
 
@@ -216,6 +223,13 @@ func (lci *LocalConfigInfo) SetConfiguration(parameter string, value interface{}
 			lci.componentSettings.MinCPU = &strValue
 		case "maxcpu":
 			lci.componentSettings.MaxCPU = &strValue
+		case "storage":
+			storageSetting, _ := value.(ComponentStorageSettings)
+			if lci.componentSettings.Storage != nil {
+				*lci.componentSettings.Storage = append(*lci.componentSettings.Storage, storageSetting)
+			} else {
+				lci.componentSettings.Storage = &[]ComponentStorageSettings{storageSetting}
+			}
 		case "cpu":
 			lci.componentSettings.MinCPU = &strValue
 			lci.componentSettings.MaxCPU = &strValue
@@ -292,7 +306,24 @@ func (lci *LocalConfigInfo) DeleteUrl(parameter string) error {
 		}
 	}
 	return lci.writeToFile()
+}
 
+// DeleteFromConfigurationList is used to delete a value from a list from the local odo config
+// parameter is the name of the config parameter
+// value is the value to be deleted
+func (lci *LocalConfigInfo) DeleteFromConfigurationList(parameter string, value string) error {
+	if parameter, ok := asLocallySupportedParameter(parameter); ok {
+		switch parameter {
+		case "storage":
+			for i, storage := range lci.GetStorage() {
+				if storage.Name == value {
+					*lci.componentSettings.Storage = append((*lci.componentSettings.Storage)[:i], (*lci.componentSettings.Storage)[i+1:]...)
+				}
+			}
+			return lci.writeToFile()
+		}
+	}
+	return errors.Errorf("unknown parameter :'%s' is not a parameter in local odo config", parameter)
 }
 
 // GetComponentSettings returns the componentSettings from local config
@@ -439,8 +470,15 @@ func (lc *LocalConfig) GetUrl() []ConfigUrl {
 	return *lc.componentSettings.Url
 }
 
-const (
+// GetStorage returns the Storage, returns empty if nil
+func (lc *LocalConfig) GetStorage() []ComponentStorageSettings {
+	if lc.componentSettings.Storage == nil {
+		return []ComponentStorageSettings{}
+	}
+	return *lc.componentSettings.Storage
+}
 
+const (
 	// Type is the name of the setting controlling the component type i.e. builder image
 	Type = "Type"
 	// TypeDescription is human-readable description of the componentType setting
@@ -499,6 +537,10 @@ const (
 	RefDescription = "Git ref to use for creating component from git source"
 	// SourceTypeDescription is the description of type setting
 	SourceTypeDescription = "Type of component source - git/binary/local"
+	// Storage is the name of the setting controlling storage
+	Storage = "Storage"
+	// StorageDescription is the description of the storage
+	StorageDescription = "Storage of the component"
 	// SourceLocationDescription is the human-readable description of path setting
 	SourceLocationDescription = "The path indicates the location of binary file or git source"
 	// Url
@@ -523,6 +565,7 @@ var (
 		Ignore:         IgnoreDescription,
 		MinCPU:         MinCPUDescription,
 		MaxCPU:         MaxCPUDescription,
+		Storage:        StorageDescription,
 		CPU:            CPUDescription,
 		Url:            UrlDescription,
 	}

pkg/config/config_test.go

@@ -279,7 +279,7 @@ func TestLocalUnsetConfiguration(t *testing.T) {
 func TestLowerCaseParameterForLocalParameters(t *testing.T) {
 	expected := map[string]bool{"name": true, "minmemory": true, "ignore": true, "project": true,
 		"application": true, "type": true, "ref": true, "mincpu": true, "cpu": true, "ports": true, "maxmemory": true,
-		"maxcpu": true, "sourcetype": true, "sourcelocation": true, "memory": true, "url": true}
+		"maxcpu": true, "sourcetype": true, "sourcelocation": true, "memory": true, "storage": true, "url": true}
 	actual := util.GetLowerCaseParameters(GetLocallySupportedParameters())
 	if !reflect.DeepEqual(expected, actual) {
 		t.Errorf("expected '%v', got '%v'", expected, actual)

pkg/config/storage.go

@@ -0,0 +1,71 @@
+package config
+
+import (
+	"github.com/pkg/errors"
+)
+
+func (lci *LocalConfigInfo) StorageCreate(name, size, path string) (ComponentStorageSettings, error) {
+	storage := ComponentStorageSettings{
+		Name: name,
+		Size: size,
+		Path: path,
+	}
+	err := lci.SetConfiguration("storage", storage)
+	if err != nil {
+		return ComponentStorageSettings{}, err
+	}
+	return storage, err
+}
+
+func (lci *LocalConfigInfo) StorageExists(storageName string) bool {
+	for _, storage := range lci.GetStorage() {
+		if storageName == storage.Name {
+			return true
+		}
+	}
+	return false
+}
+
+func (lci *LocalConfigInfo) StorageList() ([]ComponentStorageSettings, error) {
+	storageConfigList := lci.GetStorage()
+	var storageList []ComponentStorageSettings
+	for _, storage := range storageConfigList {
+		storageList = append(storageList, ComponentStorageSettings{
+			Name: storage.Name,
+			Path: storage.Path,
+			Size: storage.Size,
+		})
+	}
+	return storageList, nil
+}
+
+func (lci *LocalConfigInfo) ValidateStorage(storageName, storagePath string) error {
+	for _, storage := range lci.GetStorage() {
+		if storage.Name == storageName {
+			return errors.Errorf("there already is a storage with the name %s", storageName)
+		}
+		if storage.Path == storagePath {
+			return errors.Errorf("there already is a storage mounted at %s", storagePath)
+		}
+	}
+	return nil
+}
+
+func (lci *LocalConfigInfo) StorageDelete(name string) error {
+	exists := lci.StorageExists(name)
+	if !exists {
+		return errors.Errorf("storage named %s doesn't exists", name)
+	}
+	return lci.DeleteFromConfigurationList("storage", name)
+}
+
+func (lci *LocalConfigInfo) GetMountPath(storageName string) string {
+	var mPath string
+	storageList, _ := lci.StorageList()
+	for _, storage := range storageList {
+		if storage.Name == storageName {
+			mPath = storage.Path
+		}
+	}
+	return mPath
+}

pkg/config/storage_test.go

@@ -0,0 +1,495 @@
+package config
+
+import (
+	"io/ioutil"
+	"os"
+	"reflect"
+	"testing"
+)
+
+func TestLocalConfigInfo_StorageCreate(t *testing.T) {
+	tempConfigFile, err := ioutil.TempFile("", "odoconfig")
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer tempConfigFile.Close()
+	os.Setenv(localConfigEnvName, tempConfigFile.Name())
+
+	tests := []struct {
+		name           string
+		storageName    string
+		storageSize    string
+		storagePath    string
+		existingConfig LocalConfig
+	}{
+		{
+			name:        "case 1: no other storage present",
+			storageName: "example-storage-0",
+			storageSize: "100M",
+			storagePath: "/data",
+			existingConfig: LocalConfig{
+				componentSettings: ComponentSettings{},
+			},
+		},
+		{
+			name:        "case 2: one other storage present",
+			storageName: "example-storage-1",
+			storageSize: "100M",
+			storagePath: "/data-1",
+			existingConfig: LocalConfig{
+				componentSettings: ComponentSettings{
+					Storage: &[]ComponentStorageSettings{
+						{
+							Name: "example-storage-0",
+							Path: "/data",
+							Size: "100M",
+						},
+					},
+				},
+			},
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			cfg, err := NewLocalConfigInfo("")
+			if err != nil {
+				t.Error(err)
+			}
+			cfg.LocalConfig = tt.existingConfig
+
+			_, err = cfg.StorageCreate(tt.storageName, tt.storageSize, tt.storagePath)
+			if err != nil {
+				t.Error(err)
+			}
+
+			found := false
+			for _, storage := range *cfg.componentSettings.Storage {
+				if storage.Name == tt.storageName && storage.Size == tt.storageSize && storage.Path == tt.storagePath {
+					found = true
+				}
+			}
+			if !found {
+				t.Errorf("the storage '%v' is not set properly in the config", tt)
+			}
+		})
+	}
+}
+
+func TestLocalConfigInfo_StorageExists(t *testing.T) {
+	tempConfigFile, err := ioutil.TempFile("", "odoconfig")
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer tempConfigFile.Close()
+	os.Setenv(localConfigEnvName, tempConfigFile.Name())
+
+	tests := []struct {
+		name           string
+		storageName    string
+		existingConfig LocalConfig
+		storageExists  bool
+	}{
+		{
+			name:        "case 1: storage present",
+			storageName: "example-storage-1",
+			existingConfig: LocalConfig{
+				componentSettings: ComponentSettings{
+					Storage: &[]ComponentStorageSettings{
+						{
+							Name: "example-storage-1",
+						},
+					},
+				},
+			},
+			storageExists: true,
+		},
+		{
+			name:        "case 2: storage present",
+			storageName: "example-storage-1",
+			existingConfig: LocalConfig{
+				componentSettings: ComponentSettings{
+					Storage: &[]ComponentStorageSettings{
+						{
+							Name: "example-storage-0",
+						},
+					},
+				},
+			},
+			storageExists: false,
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			cfg, err := NewLocalConfigInfo("")
+			if err != nil {
+				t.Error(err)
+			}
+			cfg.LocalConfig = tt.existingConfig
+
+			exists := cfg.StorageExists(tt.storageName)
+			if exists != tt.storageExists {
+				t.Errorf("wrong value of exists, expected: %v, unexpected: %v", tt.storageExists, exists)
+			}
+		})
+	}
+}
+
+func TestLocalConfigInfo_StorageList(t *testing.T) {
+	tempConfigFile, err := ioutil.TempFile("", "odoconfig")
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer tempConfigFile.Close()
+	os.Setenv(localConfigEnvName, tempConfigFile.Name())
+
+	tests := []struct {
+		name           string
+		existingConfig LocalConfig
+	}{
+		{
+			name: "case 1: one storage exists",
+			existingConfig: LocalConfig{
+				componentSettings: ComponentSettings{
+					Storage: &[]ComponentStorageSettings{
+						{
+							Name: "example-storage-0",
+							Path: "/data-0",
+							Size: "100M",
+						},
+					},
+				},
+			},
+		},
+		{
+			name: "case 2: more than one storage exists",
+			existingConfig: LocalConfig{
+				componentSettings: ComponentSettings{
+					Storage: &[]ComponentStorageSettings{
+						{
+							Name: "example-storage-0",
+							Path: "/data-0",
+							Size: "100M",
+						},
+						{
+							Name: "example-storage-1",
+							Path: "/data-1",
+							Size: "100M",
+						},
+					},
+				},
+			},
+		},
+		{
+			name: "case 3: no storage exists",
+			existingConfig: LocalConfig{
+				componentSettings: ComponentSettings{
+					Storage: &[]ComponentStorageSettings{},
+				},
+			},
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			cfg, err := NewLocalConfigInfo("")
+			if err != nil {
+				t.Error(err)
+			}
+			cfg.LocalConfig = tt.existingConfig
+
+			storageList, err := cfg.StorageList()
+			if err != nil {
+				t.Error(err)
+			}
+
+			if len(*tt.existingConfig.componentSettings.Storage) != len(storageList) {
+				t.Errorf("length mismatch, expected: %v, unexpected: %v", len(*tt.existingConfig.componentSettings.Storage), len(storageList))
+			}
+
+			for _, storageConfig := range *tt.existingConfig.componentSettings.Storage {
+				found := false
+
+				for _, storageResult := range storageList {
+					if reflect.DeepEqual(storageResult, storageConfig) {
+						found = true
+					}
+				}
+
+				if !found {
+					t.Errorf("storage %v not found while listing", storageConfig)
+				}
+			}
+		})
+	}
+}
+
+func TestLocalConfigInfo_ValidateStorage(t *testing.T) {
+	tempConfigFile, err := ioutil.TempFile("", "odoconfig")
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer tempConfigFile.Close()
+	os.Setenv(localConfigEnvName, tempConfigFile.Name())
+
+	tests := []struct {
+		name           string
+		storageName    string
+		storagePath    string
+		existingConfig LocalConfig
+		wantError      bool
+	}{
+		{
+			name:        "case 1: no storage present in config",
+			storageName: "example-storage-0",
+			storagePath: "/data",
+			existingConfig: LocalConfig{
+				componentSettings: ComponentSettings{
+					Storage: &[]ComponentStorageSettings{},
+				},
+			},
+			wantError: false,
+		},
+		{
+			name:        "case 2: storage present in config with no conflict",
+			storageName: "example-storage-0",
+			storagePath: "/data",
+			existingConfig: LocalConfig{
+				componentSettings: ComponentSettings{
+					Storage: &[]ComponentStorageSettings{
+						{
+							Name: "example-storage-1",
+							Path: "/data-1",
+							Size: "100M",
+						},
+					},
+				},
+			},
+			wantError: false,
+		},
+		{
+			name:        "case 3: storage present in config and with path conflict",
+			storageName: "example-storage-0",
+			storagePath: "/data",
+			existingConfig: LocalConfig{
+				componentSettings: ComponentSettings{
+					Storage: &[]ComponentStorageSettings{
+						{
+							Name: "example-storage-1",
+							Path: "/data",
+							Size: "100M",
+						},
+					},
+				},
+			},
+			wantError: true,
+		},
+		{
+			name:        "case 4: storage present in config and with name conflict",
+			storageName: "example-storage-0",
+			storagePath: "/data",
+			existingConfig: LocalConfig{
+				componentSettings: ComponentSettings{
+					Storage: &[]ComponentStorageSettings{
+						{
+							Name: "example-storage-0",
+							Path: "/data-1",
+							Size: "100M",
+						},
+					},
+				},
+			},
+			wantError: true,
+		},
+		{
+			name:        "case 5: storage present in config and with name and path conflicts",
+			storageName: "example-storage-0",
+			storagePath: "/data",
+			existingConfig: LocalConfig{
+				componentSettings: ComponentSettings{
+					Storage: &[]ComponentStorageSettings{
+						{
+							Name: "example-storage-0",
+							Path: "/data",
+							Size: "100M",
+						},
+					},
+				},
+			},
+			wantError: true,
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			cfg, err := NewLocalConfigInfo("")
+			if err != nil {
+				t.Error(err)
+			}
+			cfg.LocalConfig = tt.existingConfig
+
+			err = cfg.ValidateStorage(tt.storageName, tt.storagePath)
+
+			if !tt.wantError && err != nil {
+				t.Errorf("no error expected,but got error: %v", err)
+			}
+
+			if tt.wantError && err == nil {
+				t.Errorf("error expected,but got no error")
+			}
+		})
+	}
+}
+
+func TestLocalConfigInfo_StorageDelete(t *testing.T) {
+	tempConfigFile, err := ioutil.TempFile("", "odoconfig")
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer tempConfigFile.Close()
+	os.Setenv(localConfigEnvName, tempConfigFile.Name())
+
+	tests := []struct {
+		name           string
+		storageName    string
+		existingConfig LocalConfig
+		wantError      bool
+	}{
+		{
+			name:        "case 1: storage does exist",
+			storageName: "example-storage-0",
+			existingConfig: LocalConfig{
+				componentSettings: ComponentSettings{
+					Storage: &[]ComponentStorageSettings{
+						{
+							Name: "example-storage-0",
+						},
+					},
+				},
+			},
+			wantError: false,
+		},
+		{
+			name:        "case 2: storage doesn't exist",
+			storageName: "example-storage-0",
+			existingConfig: LocalConfig{
+				componentSettings: ComponentSettings{
+					Storage: &[]ComponentStorageSettings{
+						{
+							Name: "example-storage-1",
+						},
+					},
+				},
+			},
+			wantError: true,
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			cfg, err := NewLocalConfigInfo("")
+			if err != nil {
+				t.Error(err)
+			}
+			cfg.LocalConfig = tt.existingConfig
+
+			err = cfg.StorageDelete(tt.storageName)
+
+			if !tt.wantError && err != nil {
+				t.Errorf("no error expected,but got error: %v", err)
+			}
+
+			if tt.wantError && err == nil {
+				t.Errorf("error expected,but got no error")
+			}
+
+			found := false
+			for _, storage := range *cfg.componentSettings.Storage {
+				if storage.Name == tt.storageName {
+					found = true
+				}
+			}
+			if found {
+				t.Errorf("the storage '%v' is not deleted properly from the config", tt.storageName)
+			}
+		})
+	}
+}
+
+func TestLocalConfigInfo_GetMountPath(t *testing.T) {
+	tempConfigFile, err := ioutil.TempFile("", "odoconfig")
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer tempConfigFile.Close()
+	os.Setenv(localConfigEnvName, tempConfigFile.Name())
+
+	tests := []struct {
+		name           string
+		storageName    string
+		existingConfig LocalConfig
+		wantPath       string
+	}{
+		{
+			name:        "case 1: no storage exists",
+			storageName: "example-storage-0",
+			existingConfig: LocalConfig{
+				componentSettings: ComponentSettings{
+					Storage: &[]ComponentStorageSettings{},
+				},
+			},
+			wantPath: "",
+		},
+		{
+			name:        "case 2: storage exists and one storage exists in config",
+			storageName: "example-storage-0",
+			existingConfig: LocalConfig{
+				componentSettings: ComponentSettings{
+					Storage: &[]ComponentStorageSettings{
+						{
+							Name: "example-storage-0",
+							Path: "/data",
+						},
+					},
+				},
+			},
+			wantPath: "/data",
+		},
+		{
+			name:        "case 3: storage exists and two storage exists in config",
+			storageName: "example-storage-1",
+			existingConfig: LocalConfig{
+				componentSettings: ComponentSettings{
+					Storage: &[]ComponentStorageSettings{
+						{
+							Name: "example-storage-0",
+							Path: "/data",
+						},
+						{
+							Name: "example-storage-1",
+							Path: "/data-1",
+						},
+					},
+				},
+			},
+			wantPath: "/data-1",
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			cfg, err := NewLocalConfigInfo("")
+			if err != nil {
+				t.Error(err)
+			}
+			cfg.LocalConfig = tt.existingConfig
+
+			path := cfg.GetMountPath(tt.storageName)
+
+			if path != tt.wantPath {
+				t.Errorf("the value of returned path is different, expected: %v, got: %v", tt.wantPath, path)
+			}
+		})
+	}
+}

pkg/occlient/occlient.go

@@ -47,8 +47,6 @@ import (
 	kerrors "k8s.io/apimachinery/pkg/api/errors"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 
-	// utilities
-	"k8s.io/apimachinery/pkg/api/resource"
 	"k8s.io/apimachinery/pkg/fields"
 	"k8s.io/apimachinery/pkg/runtime"
 	"k8s.io/apimachinery/pkg/types"
@@ -80,6 +78,9 @@ type CreateArgs struct {
 	Resources       *corev1.ResourceRequirements
 	ApplicationName string
 	Wait            bool
+	// StorageToBeMounted describes the storage to be created
+	// storagePath is the key of the map, the generatedPVC is the value of the map
+	StorageToBeMounted map[string]*corev1.PersistentVolumeClaim
 }
 
 const (
@@ -166,7 +167,7 @@ type S2IPaths struct {
 	BuilderImgName      string
 }
 
-// UpdateComponentParams serves the purpose of holding the arguements to a component update request
+// UpdateComponentParams serves the purpose of holding the arguments to a component update request
 type UpdateComponentParams struct {
 	// CommonObjectMeta is the object meta containing the labels and annotations expected for the new deployment
 	CommonObjectMeta metav1.ObjectMeta
@@ -180,6 +181,12 @@ type UpdateComponentParams struct {
 	DcRollOutWaitCond dcRollOutWait
 	// ImageMeta describes the image to be used in dc(builder image for local/binary and built component image for git deployments)
 	ImageMeta CommonImageMeta
+	// StorageToBeMounted describes the storage to be mounted
+	// storagePath is the key of the map, the generatedPVC is the value of the map
+	StorageToBeMounted map[string]*corev1.PersistentVolumeClaim
+	// StorageToBeUnMounted describes the storage to be unmounted
+	// path is the key of the map,storageName is the value of the map
+	StorageToBeUnMounted map[string]string
 }
 
 // S2IDeploymentsDir is a set of possible S2I labels that provides S2I deployments directory
@@ -852,6 +859,10 @@ func (c *Client) NewAppS2I(params CreateArgs, commonObjectMeta metav1.ObjectMeta
 
 	// Generate and create the DeploymentConfig
 	dc := generateGitDeploymentConfig(commonObjectMeta, buildConfig.Spec.Output.To.Name, containerPorts, inputEnvVars, params.Resources)
+	err = addOrRemoveVolumeAndVolumeMount(c, &dc, params.StorageToBeMounted, nil)
+	if err != nil {
+		return errors.Wrapf(err, "failed to mount and unmount pvc to dc")
+	}
 	_, err = c.appsClient.DeploymentConfigs(c.Namespace).Create(&dc)
 	if err != nil {
 		return errors.Wrapf(err, "unable to create DeploymentConfig for %s", commonObjectMeta.Name)
@@ -1173,6 +1184,10 @@ func (c *Client) BootstrapSupervisoredS2I(params CreateArgs, commonObjectMeta me
 	addBootstrapSupervisordInitContainer(&dc, commonObjectMeta.Name)
 	addBootstrapVolume(&dc, commonObjectMeta.Name)
 	addBootstrapVolumeMount(&dc, commonObjectMeta.Name)
+	err = addOrRemoveVolumeAndVolumeMount(c, &dc, params.StorageToBeMounted, nil)
+	if err != nil {
+		return errors.Wrapf(err, "failed to mount and unmount pvc to dc")
+	}
 
 	if len(inputEnvs) != 0 {
 		err = updateEnvVar(&dc, inputEnvs)
@@ -1311,10 +1326,14 @@ type dcRollOutWait func(*appsv1.DeploymentConfig, int64) bool
 // if prePatchDCHandler is specified (meaning not nil), then it's applied
 // as the last action before the actual call to the Kubernetes API thus giving us the chance
 // to perform arbitrary updates to a DC before it's finalized for patching
-func (c *Client) PatchCurrentDC(name string, dc appsv1.DeploymentConfig, prePatchDCHandler dcStructUpdater, waitCond dcRollOutWait, currentDC *appsv1.DeploymentConfig, existingCmpContainer corev1.Container, waitForDc bool) error {
+func (c *Client) PatchCurrentDC(dc appsv1.DeploymentConfig, prePatchDCHandler dcStructUpdater, existingCmpContainer corev1.Container, ucp UpdateComponentParams, waitForDc bool) error {
 
+	name := ucp.CommonObjectMeta.Name
+	currentDC := ucp.ExistingDC
 	modifiedDC := *currentDC
 
+	waitCond := ucp.DcRollOutWaitCond
+
 	// copy the any remaining volumes and volume mounts
 	copyVolumesAndVolumeMounts(dc, currentDC, existingCmpContainer)
 
@@ -1325,6 +1344,12 @@ func (c *Client) PatchCurrentDC(name string, dc appsv1.DeploymentConfig, prePatc
 		}
 	}
 
+	// now mount/unmount the newly created/deleted pvc
+	err := addOrRemoveVolumeAndVolumeMount(c, &dc, ucp.StorageToBeMounted, ucp.StorageToBeUnMounted)
+	if err != nil {
+		return err
+	}
+
 	// Replace the current spec with the new one
 	modifiedDC.Spec = dc.Spec
 
@@ -1338,6 +1363,7 @@ func (c *Client) PatchCurrentDC(name string, dc appsv1.DeploymentConfig, prePatc
 	// despite the "patch" function name, we use update since `.Patch` requires
 	// use to define each and every object we must change. Updating makes it easier.
 	updatedDc, err := c.appsClient.DeploymentConfigs(c.Namespace).Update(&modifiedDC)
+
 	if err != nil {
 		return errors.Wrapf(err, "unable to update DeploymentConfig %s", name)
 	}
@@ -1450,12 +1476,10 @@ func (c *Client) UpdateDCToGit(ucp UpdateComponentParams, isDeleteSupervisordVol
 	if isDeleteSupervisordVolumes {
 		// Patch the current DC
 		err = c.PatchCurrentDC(
-			ucp.CommonObjectMeta.Name,
 			dc,
 			removeTracesOfSupervisordFromDC,
-			ucp.DcRollOutWaitCond,
-			ucp.ExistingDC,
 			existingCmpContainer,
+			ucp,
 			true,
 		)
 
@@ -1470,12 +1494,10 @@ func (c *Client) UpdateDCToGit(ucp UpdateComponentParams, isDeleteSupervisordVol
 		}
 	} else {
 		err = c.PatchCurrentDC(
-			ucp.CommonObjectMeta.Name,
 			dc,
 			nil,
-			ucp.DcRollOutWaitCond,
-			ucp.ExistingDC,
 			existingCmpContainer,
+			ucp,
 			false,
 		)
 	}
@@ -1605,12 +1627,10 @@ func (c *Client) UpdateDCToSupervisor(ucp UpdateComponentParams, isToLocal bool,
 
 	// Patch the current DC with the new one
 	err = c.PatchCurrentDC(
-		ucp.CommonObjectMeta.Name,
 		dc,
 		nil,
-		ucp.DcRollOutWaitCond,
-		ucp.ExistingDC,
 		existingCmpContainer,
+		ucp,
 		true,
 	)
 	if err != nil {
@@ -2557,43 +2577,6 @@ func (c *Client) ListSecrets(labelSelector string) ([]corev1.Secret, error) {
 	return secretList.Items, nil
 }
 
-// CreatePVC creates a PVC resource in the cluster with the given name, size and
-// labels
-func (c *Client) CreatePVC(name string, size string, labels map[string]string) (*corev1.PersistentVolumeClaim, error) {
-	quantity, err := resource.ParseQuantity(size)
-	if err != nil {
-		return nil, errors.Wrapf(err, "unable to parse size: %v", size)
-	}
-
-	pvc := &corev1.PersistentVolumeClaim{
-		ObjectMeta: metav1.ObjectMeta{
-			Name:   name,
-			Labels: labels,
-		},
-		Spec: corev1.PersistentVolumeClaimSpec{
-			Resources: corev1.ResourceRequirements{
-				Requests: corev1.ResourceList{
-					corev1.ResourceStorage: quantity,
-				},
-			},
-			AccessModes: []corev1.PersistentVolumeAccessMode{
-				corev1.ReadWriteOnce,
-			},
-		},
-	}
-
-	createdPvc, err := c.kubeClient.CoreV1().PersistentVolumeClaims(c.Namespace).Create(pvc)
-	if err != nil {
-		return nil, errors.Wrap(err, "unable to create PVC")
-	}
-	return createdPvc, nil
-}
-
-// DeletePVC deletes the given PVC by name
-func (c *Client) DeletePVC(name string) error {
-	return c.kubeClient.CoreV1().PersistentVolumeClaims(c.Namespace).Delete(name, nil)
-}
-
 // DeleteBuildConfig deletes the given BuildConfig by name using CommonObjectMeta..
 func (c *Client) DeleteBuildConfig(commonObjectMeta metav1.ObjectMeta) error {
 
@@ -2606,77 +2589,6 @@ func (c *Client) DeleteBuildConfig(commonObjectMeta metav1.ObjectMeta) error {
 	return c.buildClient.BuildConfigs(c.Namespace).DeleteCollection(&metav1.DeleteOptions{}, metav1.ListOptions{LabelSelector: selector})
 }
 
-// generateVolumeNameFromPVC generates a random volume name based on the name
-// of the given PVC
-func generateVolumeNameFromPVC(pvc string) string {
-	return fmt.Sprintf("%v-%v-volume", pvc, util.GenerateRandomString(nameLength))
-}
-
-// AddPVCToDeploymentConfig adds the given PVC to the given Deployment Config
-// at the given path
-func (c *Client) AddPVCToDeploymentConfig(dc *appsv1.DeploymentConfig, pvc string, path string) error {
-	volumeName := generateVolumeNameFromPVC(pvc)
-
-	// Validating dc.Spec.Template is present before dereferencing
-	if dc.Spec.Template == nil {
-		return fmt.Errorf("TemplatePodSpec in %s DeploymentConfig is empty", dc.Name)
-	}
-	dc.Spec.Template.Spec.Volumes = append(dc.Spec.Template.Spec.Volumes, corev1.Volume{
-		Name: volumeName,
-		VolumeSource: corev1.VolumeSource{
-			PersistentVolumeClaim: &corev1.PersistentVolumeClaimVolumeSource{
-				ClaimName: pvc,
-			},
-		},
-	})
-
-	// Validating dc.Spec.Template.Spec.Containers[] is present before dereferencing
-	if len(dc.Spec.Template.Spec.Containers) == 0 {
-		return fmt.Errorf("DeploymentConfig %s doesn't have any Containers defined", dc.Name)
-	}
-	dc.Spec.Template.Spec.Containers[0].VolumeMounts = append(dc.Spec.Template.Spec.Containers[0].VolumeMounts, corev1.VolumeMount{
-		Name:      volumeName,
-		MountPath: path,
-	},
-	)
-
-	glog.V(4).Infof("Updating DeploymentConfig: %v", dc)
-	_, err := c.appsClient.DeploymentConfigs(c.Namespace).Update(dc)
-	if err != nil {
-		return errors.Wrapf(err, "failed to update DeploymentConfig: %v", dc)
-	}
-	return nil
-}
-
-// removeVolumeFromDC removes the volume from the given Deployment Config and
-// returns true. If the given volume is not found, it returns false.
-func removeVolumeFromDC(vol string, dc *appsv1.DeploymentConfig) bool {
-	found := false
-	for i, volume := range dc.Spec.Template.Spec.Volumes {
-		if volume.Name == vol {
-			found = true
-			dc.Spec.Template.Spec.Volumes = append(dc.Spec.Template.Spec.Volumes[:i], dc.Spec.Template.Spec.Volumes[i+1:]...)
-		}
-	}
-	return found
-}
-
-// removeVolumeMountFromDC removes the volumeMount from all the given containers
-// in the given Deployment Config and return true. If the given volumeMount is
-// not found, it returns false
-func removeVolumeMountFromDC(vm string, dc *appsv1.DeploymentConfig) bool {
-	found := false
-	for i, container := range dc.Spec.Template.Spec.Containers {
-		for j, volumeMount := range container.VolumeMounts {
-			if volumeMount.Name == vm {
-				found = true
-				dc.Spec.Template.Spec.Containers[i].VolumeMounts = append(dc.Spec.Template.Spec.Containers[i].VolumeMounts[:j], dc.Spec.Template.Spec.Containers[i].VolumeMounts[j+1:]...)
-			}
-		}
-	}
-	return found
-}
-
 // RemoveVolumeFromDeploymentConfig removes the volume associated with the
 // given PVC from the Deployment Config. Both, the volume entry and the
 // volume mount entry in the containers, are deleted.
@@ -2718,27 +2630,6 @@ func (c *Client) RemoveVolumeFromDeploymentConfig(pvc string, dcName string) err
 	return nil
 }
 
-// getVolumeNamesFromPVC returns the name of the volume associated with the given
-// PVC in the given Deployment Config
-func (c *Client) getVolumeNamesFromPVC(pvc string, dc *appsv1.DeploymentConfig) []string {
-	var volumes []string
-	for _, volume := range dc.Spec.Template.Spec.Volumes {
-
-		// If PVC does not exist, we skip (as this is either EmptyDir or "shared-data" from SupervisorD
-		if volume.PersistentVolumeClaim == nil {
-			glog.V(4).Infof("Volume has no PVC, skipping %s", volume.Name)
-			continue
-		}
-
-		// If we find the PVC, add to volumes to be returned
-		if volume.PersistentVolumeClaim.ClaimName == pvc {
-			volumes = append(volumes, volume.Name)
-		}
-
-	}
-	return volumes
-}
-
 // GetDeploymentConfigsFromSelector returns an array of Deployment Config
 // resources which match the given selector
 func (c *Client) GetDeploymentConfigsFromSelector(selector string) ([]appsv1.DeploymentConfig, error) {
@@ -3243,16 +3134,6 @@ func (c *Client) GetPVCFromName(pvcName string) (*corev1.PersistentVolumeClaim,
 	return c.kubeClient.CoreV1().PersistentVolumeClaims(c.Namespace).Get(pvcName, metav1.GetOptions{})
 }
 
-// UpdatePVCLabels updates the given PVC with the given labels
-func (c *Client) UpdatePVCLabels(pvc *corev1.PersistentVolumeClaim, labels map[string]string) error {
-	pvc.Labels = labels
-	_, err := c.kubeClient.CoreV1().PersistentVolumeClaims(c.Namespace).Update(pvc)
-	if err != nil {
-		return errors.Wrap(err, "unable to remove storage label from PVC")
-	}
-	return nil
-}
-
 // CreateBuildConfig creates a buildConfig using the builderImage as well as gitURL.
 // envVars is the array containing the environment variables
 func (c *Client) CreateBuildConfig(commonObjectMeta metav1.ObjectMeta, builderImage string, gitURL string, gitRef string, envVars []corev1.EnvVar) (buildv1.BuildConfig, error) {

pkg/occlient/occlient_test.go

@@ -375,142 +375,6 @@ func TestGetPVCNameFromVolumeMountName(t *testing.T) {
 	}
 }
 
-func TestAddPVCToDeploymentConfig(t *testing.T) {
-	type args struct {
-		dc   *appsv1.DeploymentConfig
-		pvc  string
-		path string
-	}
-	tests := []struct {
-		name    string
-		args    args
-		wantErr bool
-	}{
-		{
-			name: "Test case 1: valid dc",
-			args: args{
-				dc: &appsv1.DeploymentConfig{
-					Spec: appsv1.DeploymentConfigSpec{
-						Selector: map[string]string{
-							"deploymentconfig": "nodejs-app",
-						},
-						Template: &corev1.PodTemplateSpec{
-							Spec: corev1.PodSpec{
-								Containers: []corev1.Container{
-									{
-										Name: "test",
-										VolumeMounts: []corev1.VolumeMount{
-											{
-												MountPath: "/tmp",
-												Name:      "test",
-											},
-										},
-									},
-								},
-							},
-						},
-					},
-				},
-				pvc:  "test volume",
-				path: "/mnt",
-			},
-			wantErr: false,
-		},
-		{
-			name: "Test case 2: dc without Containers defined",
-			args: args{
-				dc: &appsv1.DeploymentConfig{
-					Spec: appsv1.DeploymentConfigSpec{
-						Selector: map[string]string{
-							"deploymentconfig": "nodejs-app",
-						},
-						Template: &corev1.PodTemplateSpec{
-							Spec: corev1.PodSpec{},
-						},
-					},
-				},
-				pvc:  "test-voulme",
-				path: "/mnt",
-			},
-			wantErr: true,
-		},
-		{
-			name: "Test case 3: dc without Template defined",
-			args: args{
-				dc: &appsv1.DeploymentConfig{
-					Spec: appsv1.DeploymentConfigSpec{
-						Selector: map[string]string{
-							"deploymentconfig": "nodejs-app",
-						},
-					},
-				},
-				pvc:  "test-voulme",
-				path: "/mnt",
-			},
-			wantErr: true,
-		},
-	}
-
-	for _, tt := range tests {
-		t.Run(tt.name, func(t *testing.T) {
-			fakeClient, fakeClientset := FakeNew()
-
-			fakeClientset.AppsClientset.PrependReactor("update", "deploymentconfigs", func(action ktesting.Action) (bool, runtime.Object, error) {
-				dc := action.(ktesting.UpdateAction).GetObject().(*appsv1.DeploymentConfig)
-				if dc.Name != tt.args.dc.Name {
-					t.Errorf("dc Name mismatch got: %s, expected %s", dc.Name, tt.args.dc.Name)
-				}
-				return true, nil, nil
-			})
-			err := fakeClient.AddPVCToDeploymentConfig(tt.args.dc, tt.args.pvc, tt.args.path)
-
-			// Checks for error in positive cases
-			if !tt.wantErr == (err != nil) {
-				t.Errorf("Client.AddPVCToDeploymentConfig() unexpected error = %v, wantErr %v", err, tt.wantErr)
-			}
-
-			// Checks for number of actions performed in positive cases
-			if err == nil {
-				// Check for validating actions performed
-				if (len(fakeClientset.AppsClientset.Actions()) != 1) && (tt.wantErr != true) {
-					t.Errorf("expected 1 action in GetPVCFromName got: %v", fakeClientset.AppsClientset.Actions())
-				}
-
-				updatedDc := fakeClientset.AppsClientset.Actions()[0].(ktesting.UpdateAction).GetObject().(*appsv1.DeploymentConfig)
-				found := false // creating a flag
-				// iterating over the VolumeMounts for finding the one specified during func call
-				for bb := range updatedDc.Spec.Template.Spec.Containers[0].VolumeMounts {
-					if tt.args.path == updatedDc.Spec.Template.Spec.Containers[0].VolumeMounts[bb].MountPath {
-						found = true
-						if !strings.Contains(updatedDc.Spec.Template.Spec.Containers[0].VolumeMounts[bb].Name, tt.args.pvc) {
-							t.Errorf("pvc name not matching with the specified value got: %v, expected %v", updatedDc.Spec.Template.Spec.Containers[0].VolumeMounts[bb].Name, tt.args.pvc)
-						}
-					}
-				}
-				if found == false {
-					t.Errorf("expected Volume mount path %v not found in VolumeMounts", tt.args.path)
-				}
-
-				found = false // resetting the flag
-				// iterating over the volume claims to find the one specified during func call
-				for bb := range updatedDc.Spec.Template.Spec.Volumes {
-					if tt.args.pvc == updatedDc.Spec.Template.Spec.Volumes[bb].VolumeSource.PersistentVolumeClaim.ClaimName {
-						found = true
-						if !strings.Contains(updatedDc.Spec.Template.Spec.Volumes[bb].Name, tt.args.pvc) {
-							t.Errorf("pvc name not matching in PersistentVolumeClaim, got: %v, expected %v", updatedDc.Spec.Template.Spec.Volumes[bb].Name, tt.args.pvc)
-						}
-					}
-				}
-				if found == false {
-					t.Errorf("expected volume %s not found in DeploymentConfig.Spec.Template.Spec.Volumes", tt.args.pvc)
-				}
-
-			}
-
-		})
-	}
-}
-
 func TestRemoveVolumeFromDeploymentConfig(t *testing.T) {
 	type args struct {
 		pvc    string
@@ -634,122 +498,6 @@ func TestGetPVCFromName(t *testing.T) {
 	}
 }
 
-func TestCreatePVC(t *testing.T) {
-	tests := []struct {
-		name    string
-		size    string
-		labels  map[string]string
-		wantErr bool
-	}{
-		{
-			name: "storage 10Gi",
-			size: "10Gi",
-			labels: map[string]string{
-				"name":      "mongodb",
-				"namespace": "blog",
-			},
-			wantErr: false,
-		},
-		{
-			name: "storage 1024",
-			size: "1024",
-			labels: map[string]string{
-				"name":      "PostgreSQL",
-				"namespace": "backend",
-			},
-			wantErr: false,
-		},
-		{
-			name: "storage invalid size",
-			size: "4#0",
-			labels: map[string]string{
-				"name":      "MySQL",
-				"namespace": "",
-			},
-			wantErr: true,
-		},
-	}
-	for _, tt := range tests {
-		t.Run(tt.name, func(t *testing.T) {
-			fkclient, fkclientset := FakeNew()
-
-			_, err := fkclient.CreatePVC(tt.name, tt.size, tt.labels)
-
-			// Checks for error in positive cases
-			if !tt.wantErr == (err != nil) {
-				t.Errorf(" client.CreatePVC(name, size, labels) unexpected error %v, wantErr %v", err, tt.wantErr)
-			}
-
-			// Check for validating actions performed
-			if (len(fkclientset.Kubernetes.Actions()) != 1) && (tt.wantErr != true) {
-				t.Errorf("expected 1 action in CreatePVC got: %v", fkclientset.RouteClientset.Actions())
-			}
-			// Checks for return values in positive cases
-			if err == nil {
-				createdPVC := fkclientset.Kubernetes.Actions()[0].(ktesting.CreateAction).GetObject().(*corev1.PersistentVolumeClaim)
-				quantity, err := resource.ParseQuantity(tt.size)
-				if err != nil {
-					t.Errorf("failed to create quantity by calling resource.ParseQuantity(%v)", tt.size)
-				}
-
-				// created PVC should be labeled with labels passed to CreatePVC
-				if !reflect.DeepEqual(createdPVC.Labels, tt.labels) {
-					t.Errorf("labels in created route is not matching expected labels, expected: %v, got: %v", tt.labels, createdPVC.Labels)
-				}
-				// name, size of createdPVC should be matching to size, name passed to CreatePVC
-				if !reflect.DeepEqual(createdPVC.Spec.Resources.Requests["storage"], quantity) {
-					t.Errorf("size of PVC is not matching to expected size, expected: %v, got %v", quantity, createdPVC.Spec.Resources.Requests["storage"])
-				}
-				if createdPVC.Name != tt.name {
-					t.Errorf("PVC name is not matching to expected name, expected: %s, got %s", tt.name, createdPVC.Name)
-				}
-			}
-		})
-	}
-}
-
-func TestDeletePVC(t *testing.T) {
-	tests := []struct {
-		name    string
-		pvcName string
-		wantErr bool
-	}{
-		{
-			name:    "storage 10Gi",
-			pvcName: "postgresql",
-			wantErr: false,
-		},
-	}
-	for _, tt := range tests {
-		t.Run(tt.name, func(t *testing.T) {
-			fakeClient, fakeClientSet := FakeNew()
-
-			fakeClientSet.Kubernetes.PrependReactor("delete", "persistentvolumeclaims", func(action ktesting.Action) (bool, runtime.Object, error) {
-				return true, nil, nil
-			})
-
-			err := fakeClient.DeletePVC(tt.pvcName)
-
-			//Checks for error in positive cases
-			if !tt.wantErr == (err != nil) {
-				t.Errorf(" client.DeletePVC(name) unexpected error %v, wantErr %v", err, tt.wantErr)
-			}
-
-			// Check for validating actions performed
-			if (len(fakeClientSet.Kubernetes.Actions()) != 1) && (tt.wantErr != true) {
-				t.Errorf("expected 1 action in DeletePVC got: %v", fakeClientSet.Kubernetes.Actions())
-			}
-
-			// Check for value with which the function has called
-			DeletedPVC := fakeClientSet.Kubernetes.Actions()[0].(ktesting.DeleteAction).GetName()
-			if DeletedPVC != tt.pvcName {
-				t.Errorf("Delete action is performed with wrong pvcName, expected: %s, got %s", tt.pvcName, DeletedPVC)
-
-			}
-		})
-	}
-}
-
 func TestCreateRoute(t *testing.T) {
 	tests := []struct {
 		name       string
@@ -3584,9 +3332,12 @@ func TestDeleteServiceInstance(t *testing.T) {
 }
 
 func TestPatchCurrentDC(t *testing.T) {
+	dcRollOutWait := func(*appsv1.DeploymentConfig, int64) bool {
+		return true
+	}
+
 	type args struct {
-		name              string
-		dcBefore          appsv1.DeploymentConfig
+		ucp               UpdateComponentParams
 		dcPatch           appsv1.DeploymentConfig
 		prePatchDCHandler dcStructUpdater
 	}
@@ -3599,9 +3350,14 @@ func TestPatchCurrentDC(t *testing.T) {
 		{
 			name: "Case 1: Test patching with nil prePatchDCHandler",
 			args: args{
-				name: "foo",
-				dcBefore: *fakeDeploymentConfig("foo", "foo", []corev1.EnvVar{{Name: "key1", Value: "value1"},
-					{Name: "key2", Value: "value2"}}, []corev1.EnvFromSource{}, t),
+				ucp: UpdateComponentParams{
+					CommonObjectMeta: metav1.ObjectMeta{
+						Name: "foo",
+					},
+					ExistingDC: fakeDeploymentConfig("foo", "foo", []corev1.EnvVar{{Name: "key1", Value: "value1"},
+						{Name: "key2", Value: "value2"}}, []corev1.EnvFromSource{}, t),
+					DcRollOutWaitCond: dcRollOutWait,
+				},
 				dcPatch: generateGitDeploymentConfig(metav1.ObjectMeta{Name: "foo", Annotations: map[string]string{"app.kubernetes.io/component-source-type": "git"}}, "bar",
 					[]corev1.ContainerPort{{Name: "foo", HostPort: 80, ContainerPort: 80}},
 					[]corev1.EnvVar{{Name: "key1", Value: "value1"}, {Name: "key2", Value: "value2"}},
@@ -3613,9 +3369,14 @@ func TestPatchCurrentDC(t *testing.T) {
 		{
 			name: "Case 2: Test patching with non-nil prePatchDCHandler",
 			args: args{
-				name: "foo",
-				dcBefore: *fakeDeploymentConfig("foo", "foo", []corev1.EnvVar{{Name: "key1", Value: "value1"},
-					{Name: "key2", Value: "value2"}}, []corev1.EnvFromSource{}, t),
+				ucp: UpdateComponentParams{
+					CommonObjectMeta: metav1.ObjectMeta{
+						Name: "foo",
+					},
+					ExistingDC: fakeDeploymentConfig("foo", "foo", []corev1.EnvVar{{Name: "key1", Value: "value1"},
+						{Name: "key2", Value: "value2"}}, []corev1.EnvFromSource{}, t),
+					DcRollOutWaitCond: dcRollOutWait,
+				},
 				dcPatch: generateGitDeploymentConfig(metav1.ObjectMeta{Name: "foo", Annotations: map[string]string{"app.kubernetes.io/component-source-type": "git"}}, "bar",
 					[]corev1.ContainerPort{{Name: "foo", HostPort: 80, ContainerPort: 80}},
 					[]corev1.EnvVar{{Name: "key1", Value: "value1"}, {Name: "key2", Value: "value2"}},
@@ -3628,10 +3389,15 @@ func TestPatchCurrentDC(t *testing.T) {
 		{
 			name: "Case 3: Test patching with the wrong name",
 			args: args{
-				name: "foo",
-				dcBefore: *fakeDeploymentConfig("foo", "foo",
-					[]corev1.EnvVar{{Name: "key1", Value: "value1"}, {Name: "key2", Value: "value2"}},
-					[]corev1.EnvFromSource{}, t),
+				ucp: UpdateComponentParams{
+					CommonObjectMeta: metav1.ObjectMeta{
+						Name: "foo",
+					},
+					ExistingDC: fakeDeploymentConfig("foo", "foo",
+						[]corev1.EnvVar{{Name: "key1", Value: "value1"}, {Name: "key2", Value: "value2"}},
+						[]corev1.EnvFromSource{}, t),
+					DcRollOutWaitCond: dcRollOutWait,
+				},
 				dcPatch: generateGitDeploymentConfig(metav1.ObjectMeta{Name: "foo2"}, "bar",
 					[]corev1.ContainerPort{{Name: "foo", HostPort: 80, ContainerPort: 80}},
 					[]corev1.EnvVar{{Name: "key1", Value: "value1"}, {Name: "key2", Value: "value2"}},
@@ -3644,16 +3410,19 @@ func TestPatchCurrentDC(t *testing.T) {
 		{
 			name: "Case 4: Test patching with the dc with same requirements",
 			args: args{
-				name: "foo",
-				dcBefore: generateGitDeploymentConfig(metav1.ObjectMeta{Name: "foo2"}, "bar",
-					[]corev1.ContainerPort{{Name: "foo", HostPort: 80, ContainerPort: 80}},
+				ucp: UpdateComponentParams{
+					CommonObjectMeta: metav1.ObjectMeta{
+						Name: "foo",
+					},
+					ExistingDC: fakeDeploymentConfig("foo", "foo",
+						[]corev1.EnvVar{{Name: "key1", Value: "value1"}, {Name: "key2", Value: "value2"}},
+						[]corev1.EnvFromSource{}, t,
+					),
+					DcRollOutWaitCond: dcRollOutWait,
+				},
+				dcPatch: *fakeDeploymentConfig("foo", "foo",
 					[]corev1.EnvVar{{Name: "key1", Value: "value1"}, {Name: "key2", Value: "value2"}},
-					fakeResourceRequirements(),
-				),
-				dcPatch: generateGitDeploymentConfig(metav1.ObjectMeta{Name: "foo2"}, "bar",
-					[]corev1.ContainerPort{{Name: "foo", HostPort: 80, ContainerPort: 80}},
-					[]corev1.EnvVar{{Name: "key1", Value: "value1"}, {Name: "key2", Value: "value2"}},
-					fakeResourceRequirements(),
+					[]corev1.EnvFromSource{}, t,
 				),
 			},
 			wantErr: false,
@@ -3675,7 +3444,7 @@ func TestPatchCurrentDC(t *testing.T) {
 
 			// Fake getting DC
 			fakeClientSet.AppsClientset.PrependReactor("get", "deploymentconfigs", func(action ktesting.Action) (bool, runtime.Object, error) {
-				return true, &tt.args.dcBefore, nil
+				return true, tt.args.ucp.ExistingDC, nil
 			})
 
 			// Fake the "update"
@@ -3688,13 +3457,12 @@ func TestPatchCurrentDC(t *testing.T) {
 			})
 
 			// Run function PatchCurrentDC
-			existingContainer, err := FindContainer(tt.args.dcBefore.Spec.Template.Spec.Containers, tt.args.dcBefore.Name)
+			existingContainer, err := FindContainer(tt.args.ucp.ExistingDC.Spec.Template.Spec.Containers, tt.args.ucp.ExistingDC.Name)
 			if err != nil {
 				t.Errorf("client.PatchCurrentDC() unexpected error attempting to fetch component container. error %v", err)
 			}
-			err = fakeClient.PatchCurrentDC(tt.args.name, tt.args.dcPatch, tt.args.prePatchDCHandler, func(*appsv1.DeploymentConfig, int64) bool {
-				return true
-			}, &(tt.args.dcBefore), existingContainer, true)
+
+			err = fakeClient.PatchCurrentDC(tt.args.dcPatch, tt.args.prePatchDCHandler, existingContainer, tt.args.ucp, true)
 
 			// Error checking PatchCurrentDC
 			if !tt.wantErr == (err != nil) {

pkg/occlient/volumes.go

@@ -0,0 +1,183 @@
+package occlient
+
+import (
+	"fmt"
+	"github.com/golang/glog"
+	appsv1 "github.com/openshift/api/apps/v1"
+	"github.com/openshift/odo/pkg/util"
+	"github.com/pkg/errors"
+	corev1 "k8s.io/api/core/v1"
+	"k8s.io/apimachinery/pkg/api/resource"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+)
+
+// CreatePVC creates a PVC resource in the cluster with the given name, size and
+// labels
+func (c *Client) CreatePVC(name string, size string, labels map[string]string) (*corev1.PersistentVolumeClaim, error) {
+	quantity, err := resource.ParseQuantity(size)
+	if err != nil {
+		return nil, errors.Wrapf(err, "unable to parse size: %v", size)
+	}
+
+	pvc := &corev1.PersistentVolumeClaim{
+		ObjectMeta: metav1.ObjectMeta{
+			Name:   name,
+			Labels: labels,
+		},
+		Spec: corev1.PersistentVolumeClaimSpec{
+			Resources: corev1.ResourceRequirements{
+				Requests: corev1.ResourceList{
+					corev1.ResourceStorage: quantity,
+				},
+			},
+			AccessModes: []corev1.PersistentVolumeAccessMode{
+				corev1.ReadWriteOnce,
+			},
+		},
+	}
+
+	createdPvc, err := c.kubeClient.CoreV1().PersistentVolumeClaims(c.Namespace).Create(pvc)
+	if err != nil {
+		return nil, errors.Wrap(err, "unable to create PVC")
+	}
+	return createdPvc, nil
+}
+
+// AddPVCToDeploymentConfig adds the given PVC to the given Deployment Config
+// at the given path
+func (c *Client) AddPVCToDeploymentConfig(dc *appsv1.DeploymentConfig, pvc string, path string) error {
+	volumeName := generateVolumeNameFromPVC(pvc)
+
+	// Validating dc.Spec.Template is present before dereferencing
+	if dc.Spec.Template == nil {
+		return fmt.Errorf("TemplatePodSpec in %s DeploymentConfig is empty", dc.Name)
+	}
+	dc.Spec.Template.Spec.Volumes = append(dc.Spec.Template.Spec.Volumes, corev1.Volume{
+		Name: volumeName,
+		VolumeSource: corev1.VolumeSource{
+			PersistentVolumeClaim: &corev1.PersistentVolumeClaimVolumeSource{
+				ClaimName: pvc,
+			},
+		},
+	})
+
+	// Validating dc.Spec.Template.Spec.Containers[] is present before dereferencing
+	if len(dc.Spec.Template.Spec.Containers) == 0 {
+		return fmt.Errorf("DeploymentConfig %s doesn't have any Containers defined", dc.Name)
+	}
+	dc.Spec.Template.Spec.Containers[0].VolumeMounts = append(dc.Spec.Template.Spec.Containers[0].VolumeMounts, corev1.VolumeMount{
+		Name:      volumeName,
+		MountPath: path,
+	},
+	)
+	return nil
+}
+
+// UpdatePVCLabels updates the given PVC with the given labels
+func (c *Client) UpdatePVCLabels(pvc *corev1.PersistentVolumeClaim, labels map[string]string) error {
+	pvc.Labels = labels
+	_, err := c.kubeClient.CoreV1().PersistentVolumeClaims(c.Namespace).Update(pvc)
+	if err != nil {
+		return errors.Wrap(err, "unable to remove storage label from PVC")
+	}
+	return nil
+}
+
+// DeletePVC deletes the given PVC by name
+func (c *Client) DeletePVC(name string) error {
+	return c.kubeClient.CoreV1().PersistentVolumeClaims(c.Namespace).Delete(name, nil)
+}
+
+// IsAppSupervisorDVolume checks if the volume is a supervisorD volume
+func (c *Client) IsAppSupervisorDVolume(volumeName, dcName string) bool {
+	if volumeName == getAppRootVolumeName(dcName) {
+		return true
+	}
+	return false
+}
+
+// getVolumeNamesFromPVC returns the name of the volume associated with the given
+// PVC in the given Deployment Config
+func (c *Client) getVolumeNamesFromPVC(pvc string, dc *appsv1.DeploymentConfig) []string {
+	var volumes []string
+	for _, volume := range dc.Spec.Template.Spec.Volumes {
+
+		// If PVC does not exist, we skip (as this is either EmptyDir or "shared-data" from SupervisorD
+		if volume.PersistentVolumeClaim == nil {
+			glog.V(4).Infof("Volume has no PVC, skipping %s", volume.Name)
+			continue
+		}
+
+		// If we find the PVC, add to volumes to be returned
+		if volume.PersistentVolumeClaim.ClaimName == pvc {
+			volumes = append(volumes, volume.Name)
+		}
+
+	}
+	return volumes
+}
+
+// removeVolumeFromDC removes the volume from the given Deployment Config and
+// returns true. If the given volume is not found, it returns false.
+func removeVolumeFromDC(vol string, dc *appsv1.DeploymentConfig) bool {
+	found := false
+	for i, volume := range dc.Spec.Template.Spec.Volumes {
+		if volume.Name == vol {
+			found = true
+			dc.Spec.Template.Spec.Volumes = append(dc.Spec.Template.Spec.Volumes[:i], dc.Spec.Template.Spec.Volumes[i+1:]...)
+		}
+	}
+	return found
+}
+
+// removeVolumeMountFromDC removes the volumeMount from all the given containers
+// in the given Deployment Config and return true. If the given volumeMount is
+// not found, it returns false
+func removeVolumeMountFromDC(vm string, dc *appsv1.DeploymentConfig) bool {
+	found := false
+	for i, container := range dc.Spec.Template.Spec.Containers {
+		for j, volumeMount := range container.VolumeMounts {
+			if volumeMount.Name == vm {
+				found = true
+				dc.Spec.Template.Spec.Containers[i].VolumeMounts = append(dc.Spec.Template.Spec.Containers[i].VolumeMounts[:j], dc.Spec.Template.Spec.Containers[i].VolumeMounts[j+1:]...)
+			}
+		}
+	}
+	return found
+}
+
+// generateVolumeNameFromPVC generates a random volume name based on the name
+// of the given PVC
+func generateVolumeNameFromPVC(pvc string) string {
+	return fmt.Sprintf("%v-%v-volume", pvc, util.GenerateRandomString(nameLength))
+}
+
+// addOrRemoveVolumeAndVolumeMount mounts or unmounts PVCs from the given deploymentConfig
+func addOrRemoveVolumeAndVolumeMount(client *Client, dc *appsv1.DeploymentConfig, storageToMount map[string]*corev1.PersistentVolumeClaim, storageUnMount map[string]string) error {
+
+	if len(dc.Spec.Template.Spec.Containers) == 0 || len(dc.Spec.Template.Spec.Containers) > 1 {
+		return fmt.Errorf("more than one container found in dc")
+	}
+
+	// find the volume mount to be unmounted from the dc
+	for i, volumeMount := range dc.Spec.Template.Spec.Containers[0].VolumeMounts {
+		if _, ok := storageUnMount[volumeMount.MountPath]; ok {
+			dc.Spec.Template.Spec.Containers[0].VolumeMounts = append(dc.Spec.Template.Spec.Containers[0].VolumeMounts[:i], dc.Spec.Template.Spec.Containers[0].VolumeMounts[i+1:]...)
+
+			// now find the volume to be deleted from the dc
+			for j, volume := range dc.Spec.Template.Spec.Volumes {
+				if volume.Name == volumeMount.Name {
+					dc.Spec.Template.Spec.Volumes = append(dc.Spec.Template.Spec.Volumes[:j], dc.Spec.Template.Spec.Volumes[j+1:]...)
+				}
+			}
+		}
+	}
+
+	for path, pvc := range storageToMount {
+		err := client.AddPVCToDeploymentConfig(dc, pvc.Name, path)
+		if err != nil {
+			return errors.Wrap(err, "unable to add pvc to deployment config")
+		}
+	}
+	return nil
+}

pkg/occlient/volumes_test.go

@@ -0,0 +1,253 @@
+package occlient
+
+import (
+	"reflect"
+	"strings"
+	"testing"
+
+	appsv1 "github.com/openshift/api/apps/v1"
+	corev1 "k8s.io/api/core/v1"
+	"k8s.io/apimachinery/pkg/api/resource"
+	"k8s.io/apimachinery/pkg/runtime"
+	ktesting "k8s.io/client-go/testing"
+)
+
+func TestCreatePVC(t *testing.T) {
+	tests := []struct {
+		name    string
+		size    string
+		labels  map[string]string
+		wantErr bool
+	}{
+		{
+			name: "storage 10Gi",
+			size: "10Gi",
+			labels: map[string]string{
+				"name":      "mongodb",
+				"namespace": "blog",
+			},
+			wantErr: false,
+		},
+		{
+			name: "storage 1024",
+			size: "1024",
+			labels: map[string]string{
+				"name":      "PostgreSQL",
+				"namespace": "backend",
+			},
+			wantErr: false,
+		},
+		{
+			name: "storage invalid size",
+			size: "4#0",
+			labels: map[string]string{
+				"name":      "MySQL",
+				"namespace": "",
+			},
+			wantErr: true,
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			fkclient, fkclientset := FakeNew()
+
+			_, err := fkclient.CreatePVC(tt.name, tt.size, tt.labels)
+
+			// Checks for error in positive cases
+			if !tt.wantErr == (err != nil) {
+				t.Errorf(" client.CreatePVC(name, size, labels) unexpected error %v, wantErr %v", err, tt.wantErr)
+			}
+
+			// Check for validating actions performed
+			if (len(fkclientset.Kubernetes.Actions()) != 1) && (tt.wantErr != true) {
+				t.Errorf("expected 1 action in CreatePVC got: %v", fkclientset.RouteClientset.Actions())
+			}
+			// Checks for return values in positive cases
+			if err == nil {
+				createdPVC := fkclientset.Kubernetes.Actions()[0].(ktesting.CreateAction).GetObject().(*corev1.PersistentVolumeClaim)
+				quantity, err := resource.ParseQuantity(tt.size)
+				if err != nil {
+					t.Errorf("failed to create quantity by calling resource.ParseQuantity(%v)", tt.size)
+				}
+
+				// created PVC should be labeled with labels passed to CreatePVC
+				if !reflect.DeepEqual(createdPVC.Labels, tt.labels) {
+					t.Errorf("labels in created route is not matching expected labels, expected: %v, got: %v", tt.labels, createdPVC.Labels)
+				}
+				// name, size of createdPVC should be matching to size, name passed to CreatePVC
+				if !reflect.DeepEqual(createdPVC.Spec.Resources.Requests["storage"], quantity) {
+					t.Errorf("size of PVC is not matching to expected size, expected: %v, got %v", quantity, createdPVC.Spec.Resources.Requests["storage"])
+				}
+				if createdPVC.Name != tt.name {
+					t.Errorf("PVC name is not matching to expected name, expected: %s, got %s", tt.name, createdPVC.Name)
+				}
+			}
+		})
+	}
+}
+
+func TestDeletePVC(t *testing.T) {
+	tests := []struct {
+		name    string
+		pvcName string
+		wantErr bool
+	}{
+		{
+			name:    "storage 10Gi",
+			pvcName: "postgresql",
+			wantErr: false,
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			fakeClient, fakeClientSet := FakeNew()
+
+			fakeClientSet.Kubernetes.PrependReactor("delete", "persistentvolumeclaims", func(action ktesting.Action) (bool, runtime.Object, error) {
+				return true, nil, nil
+			})
+
+			err := fakeClient.DeletePVC(tt.pvcName)
+
+			//Checks for error in positive cases
+			if !tt.wantErr == (err != nil) {
+				t.Errorf(" client.DeletePVC(name) unexpected error %v, wantErr %v", err, tt.wantErr)
+			}
+
+			// Check for validating actions performed
+			if (len(fakeClientSet.Kubernetes.Actions()) != 1) && (tt.wantErr != true) {
+				t.Errorf("expected 1 action in DeletePVC got: %v", fakeClientSet.Kubernetes.Actions())
+			}
+
+			// Check for value with which the function has called
+			DeletedPVC := fakeClientSet.Kubernetes.Actions()[0].(ktesting.DeleteAction).GetName()
+			if DeletedPVC != tt.pvcName {
+				t.Errorf("Delete action is performed with wrong pvcName, expected: %s, got %s", tt.pvcName, DeletedPVC)
+
+			}
+		})
+	}
+}
+
+func TestAddPVCToDeploymentConfig(t *testing.T) {
+	type args struct {
+		dc   *appsv1.DeploymentConfig
+		pvc  string
+		path string
+	}
+	tests := []struct {
+		name    string
+		args    args
+		wantErr bool
+	}{
+		{
+			name: "Test case 1: valid dc",
+			args: args{
+				dc: &appsv1.DeploymentConfig{
+					Spec: appsv1.DeploymentConfigSpec{
+						Selector: map[string]string{
+							"deploymentconfig": "nodejs-app",
+						},
+						Template: &corev1.PodTemplateSpec{
+							Spec: corev1.PodSpec{
+								Containers: []corev1.Container{
+									{
+										Name: "test",
+										VolumeMounts: []corev1.VolumeMount{
+											{
+												MountPath: "/tmp",
+												Name:      "test",
+											},
+										},
+									},
+								},
+							},
+						},
+					},
+				},
+				pvc:  "test volume",
+				path: "/mnt",
+			},
+			wantErr: false,
+		},
+		{
+			name: "Test case 2: dc without Containers defined",
+			args: args{
+				dc: &appsv1.DeploymentConfig{
+					Spec: appsv1.DeploymentConfigSpec{
+						Selector: map[string]string{
+							"deploymentconfig": "nodejs-app",
+						},
+						Template: &corev1.PodTemplateSpec{
+							Spec: corev1.PodSpec{},
+						},
+					},
+				},
+				pvc:  "test-voulme",
+				path: "/mnt",
+			},
+			wantErr: true,
+		},
+		{
+			name: "Test case 3: dc without Template defined",
+			args: args{
+				dc: &appsv1.DeploymentConfig{
+					Spec: appsv1.DeploymentConfigSpec{
+						Selector: map[string]string{
+							"deploymentconfig": "nodejs-app",
+						},
+					},
+				},
+				pvc:  "test-voulme",
+				path: "/mnt",
+			},
+			wantErr: true,
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			fakeClient, _ := FakeNew()
+
+			err := fakeClient.AddPVCToDeploymentConfig(tt.args.dc, tt.args.pvc, tt.args.path)
+
+			// Checks for error in positive cases
+			if !tt.wantErr == (err != nil) {
+				t.Errorf("Client.AddPVCToDeploymentConfig() unexpected error = %v, wantErr %v", err, tt.wantErr)
+			}
+
+			// Checks for number of actions performed in positive cases
+			if err == nil {
+
+				found := false // creating a flag
+				// iterating over the VolumeMounts for finding the one specified during func call
+				for bb := range tt.args.dc.Spec.Template.Spec.Containers[0].VolumeMounts {
+					if tt.args.path == tt.args.dc.Spec.Template.Spec.Containers[0].VolumeMounts[bb].MountPath {
+						found = true
+						if !strings.Contains(tt.args.dc.Spec.Template.Spec.Containers[0].VolumeMounts[bb].Name, tt.args.pvc) {
+							t.Errorf("pvc name not matching with the specified value got: %v, expected %v", tt.args.dc.Spec.Template.Spec.Containers[0].VolumeMounts[bb].Name, tt.args.pvc)
+						}
+					}
+				}
+				if found == false {
+					t.Errorf("expected Volume mount path %v not found in VolumeMounts", tt.args.path)
+				}
+
+				found = false // resetting the flag
+				// iterating over the volume claims to find the one specified during func call
+				for bb := range tt.args.dc.Spec.Template.Spec.Volumes {
+					if tt.args.pvc == tt.args.dc.Spec.Template.Spec.Volumes[bb].VolumeSource.PersistentVolumeClaim.ClaimName {
+						found = true
+						if !strings.Contains(tt.args.dc.Spec.Template.Spec.Volumes[bb].Name, tt.args.pvc) {
+							t.Errorf("pvc name not matching in PersistentVolumeClaim, got: %v, expected %v", tt.args.dc.Spec.Template.Spec.Volumes[bb].Name, tt.args.pvc)
+						}
+					}
+				}
+				if found == false {
+					t.Errorf("expected volume %s not found in DeploymentConfig.Spec.Template.Spec.Volumes", tt.args.pvc)
+				}
+
+			}
+
+		})
+	}
+}

pkg/odo/cli/application/application.go

@@ -2,6 +2,7 @@ package application
 
 import (
 	"fmt"
+	"github.com/openshift/odo/pkg/storage"
 
 	"github.com/golang/glog"
 
@@ -9,7 +10,6 @@ import (
 	"github.com/openshift/odo/pkg/log"
 	"github.com/openshift/odo/pkg/occlient"
 	"github.com/openshift/odo/pkg/odo/genericclioptions"
-	"github.com/openshift/odo/pkg/storage"
 	"github.com/openshift/odo/pkg/url"
 	"github.com/pkg/errors"
 

pkg/odo/cli/component/component.go

@@ -2,12 +2,12 @@ package component
 
 import (
 	"fmt"
+	"github.com/openshift/odo/pkg/storage"
 
 	"github.com/openshift/odo/pkg/component"
 	"github.com/openshift/odo/pkg/log"
 	"github.com/openshift/odo/pkg/occlient"
 	"github.com/openshift/odo/pkg/odo/util/completion"
-	"github.com/openshift/odo/pkg/storage"
 	"github.com/openshift/odo/pkg/url"
 	"github.com/pkg/errors"
 

pkg/odo/cli/component/push.go

@@ -257,7 +257,6 @@ func (po *PushOptions) Run() (err error) {
 	}
 
 	log.Successf("Changes successfully pushed to component: %v", cmpName)
-
 	return
 }
 

pkg/odo/cli/project/project.go

@@ -2,6 +2,7 @@ package project
 
 import (
 	"fmt"
+	"github.com/openshift/odo/pkg/config"
 
 	"github.com/golang/glog"
 	"github.com/openshift/odo/pkg/application"
@@ -12,7 +13,6 @@ import (
 	odoutil "github.com/openshift/odo/pkg/odo/util"
 	"github.com/openshift/odo/pkg/odo/util/completion"
 	"github.com/openshift/odo/pkg/service"
-	"github.com/openshift/odo/pkg/storage"
 	"github.com/openshift/odo/pkg/url"
 	"github.com/pkg/errors"
 
@@ -78,6 +78,10 @@ func AddProjectFlag(cmd *cobra.Command) {
 
 // printDeleteProjectInfo prints objects affected by project deletion
 func printDeleteProjectInfo(client *occlient.Client, projectName string) error {
+	localConfig, err := config.New()
+	if err != nil {
+		return errors.Wrapf(err, "unable to get the local config")
+	}
 	// Fetch and List the applications
 	applicationList, err := application.ListInProject(client)
 	if err != nil {
@@ -114,13 +118,12 @@ func printDeleteProjectInfo(client *occlient.Client, projectName string) error {
 						}
 					}
 
-					storages, err := storage.List(client, currentComponent.Name, app)
+					storages, err := localConfig.StorageList()
 					odoutil.LogErrorAndExit(err, "")
-					if len(storages.Items) != 0 {
+					if len(storages) != 0 {
 						log.Info("This component has following storages which will be deleted with the component")
-						for _, storageName := range componentDesc.Spec.Storage {
-							store := storages.Get(storageName)
-							log.Info("Storage named", store.GetName(), "of size", store.Spec.Size)
+						for _, store := range storages {
+							log.Info("Storage named", store.Name, "of size", store.Size)
 						}
 					}
 				}

pkg/odo/cli/storage/create.go

@@ -2,8 +2,10 @@ package storage
 
 import (
 	"fmt"
+	"github.com/openshift/odo/pkg/config"
 	"github.com/openshift/odo/pkg/log"
 	"github.com/openshift/odo/pkg/odo/genericclioptions"
+	"github.com/openshift/odo/pkg/odo/util/completion"
 	"github.com/openshift/odo/pkg/storage"
 	"github.com/openshift/odo/pkg/util"
 	"github.com/spf13/cobra"
@@ -25,9 +27,11 @@ var (
 )
 
 type StorageCreateOptions struct {
-	storageName string
-	storageSize string
-	storagePath string
+	storageName      string
+	storageSize      string
+	storagePath      string
+	componentContext string
+	localConfig      *config.LocalConfigInfo
 	*genericclioptions.Context
 }
 
@@ -38,6 +42,11 @@ func NewStorageCreateOptions() *StorageCreateOptions {
 
 // Complete completes StorageCreateOptions after they've been created
 func (o *StorageCreateOptions) Complete(name string, cmd *cobra.Command, args []string) (err error) {
+	o.Context = genericclioptions.NewContext(cmd)
+	o.localConfig, err = config.NewLocalConfigInfo(o.componentContext)
+	if err != nil {
+		return err
+	}
 	o.Context = genericclioptions.NewContext(cmd)
 	if len(args) != 0 {
 		o.storageName = args[0]
@@ -54,23 +63,25 @@ func (o *StorageCreateOptions) Validate() (err error) {
 		return fmt.Errorf("given output format %s is not supported", o.OutputFlag)
 	}
 	// validate storage path
-	return validateStoragePath(o.Client, o.storageName, o.Component(), o.Application)
+	return o.localConfig.ValidateStorage(o.storageName, o.storagePath)
 }
 
 // Run contains the logic for the odo storage create command
 func (o *StorageCreateOptions) Run() (err error) {
-	storageResult, err := storage.Create(o.Client, o.storageName, o.storageSize, o.storagePath, o.Component(), o.Application)
+	storageResult, err := o.localConfig.StorageCreate(o.storageName, o.storageSize, o.storagePath)
 	if err != nil {
 		return err
 	}
-	out, err := util.MachineOutput(o.OutputFlag, storageResult)
+
+	storageResultMachineReadable := storage.GetMachineReadableFormat(storageResult.Name, storageResult.Size, storageResult.Path)
+	out, err := util.MachineOutput(o.OutputFlag, storageResultMachineReadable)
 	if err != nil {
 		return err
 	}
 	if out != "" {
 		fmt.Println(out)
 	} else {
-		log.Successf("Added storage %v to %v", o.storageName, o.Component())
+		log.Successf("Added storage %v to %v", o.storageName, o.localConfig.GetName())
 	}
 	return
 }
@@ -99,6 +110,8 @@ func NewCmdStorageCreate(name, fullName string) *cobra.Command {
 	componentCmd.AddComponentFlag(storageCreateCmd)
 
 	genericclioptions.AddOutputFlag(storageCreateCmd)
+	genericclioptions.AddContextFlag(storageCreateCmd, &o.componentContext)
+	completion.RegisterCommandFlagHandler(storageCreateCmd, "context", completion.FileCompletionHandler)
 
 	return storageCreateCmd
 }

pkg/odo/cli/storage/delete.go

@@ -2,6 +2,7 @@ package storage
 
 import (
 	"fmt"
+	"github.com/openshift/odo/pkg/config"
 	"github.com/openshift/odo/pkg/log"
 	appCmd "github.com/openshift/odo/pkg/odo/cli/application"
 	componentCmd "github.com/openshift/odo/pkg/odo/cli/component"
@@ -9,7 +10,6 @@ import (
 	"github.com/openshift/odo/pkg/odo/cli/ui"
 	"github.com/openshift/odo/pkg/odo/genericclioptions"
 	"github.com/openshift/odo/pkg/odo/util/completion"
-	"github.com/openshift/odo/pkg/storage"
 	"github.com/spf13/cobra"
 	ktemplates "k8s.io/kubernetes/pkg/kubectl/cmd/templates"
 )
@@ -30,7 +30,8 @@ var (
 type StorageDeleteOptions struct {
 	storageName            string
 	storageForceDeleteFlag bool
-	componentName          string
+	componentContext       string
+	localConfig            *config.LocalConfigInfo
 	*genericclioptions.Context
 }
 
@@ -41,6 +42,11 @@ func NewStorageDeleteOptions() *StorageDeleteOptions {
 
 // Complete completes StorageDeleteOptions after they've been created
 func (o *StorageDeleteOptions) Complete(name string, cmd *cobra.Command, args []string) (err error) {
+	o.Context = genericclioptions.NewContext(cmd)
+	o.localConfig, err = config.NewLocalConfigInfo(o.componentContext)
+	if err != nil {
+		return err
+	}
 	o.Context = genericclioptions.NewContext(cmd)
 	o.storageName = args[0]
 	return
@@ -48,42 +54,29 @@ func (o *StorageDeleteOptions) Complete(name string, cmd *cobra.Command, args []
 
 // Validate validates the StorageDeleteOptions based on completed values
 func (o *StorageDeleteOptions) Validate() (err error) {
-	exists, err := storage.Exists(o.Client, o.storageName, o.Application)
-
-	if err != nil {
-		return
-	}
+	exists := o.localConfig.StorageExists(o.storageName)
 	if !exists {
 		return fmt.Errorf("the storage %v does not exists in the application %v, cause %v", o.storageName, o.Application, err)
 	}
 
-	o.componentName, err = storage.GetComponentNameFromStorageName(o.Client, o.storageName)
-	if err != nil {
-		return fmt.Errorf("unable to get component associated with %s storage, cause %v", o.storageName, err)
-	}
-
 	return
 }
 
 // Run contains the logic for the odo storage delete command
 func (o *StorageDeleteOptions) Run() (err error) {
 	var deleteMsg string
-	if o.componentName != "" {
-		mPath := storage.GetMountPath(o.Client, o.storageName, o.componentName, o.Application)
-		deleteMsg = fmt.Sprintf("Are you sure you want to delete the storage %v mounted to %v in %v component", o.storageName, mPath, o.componentName)
-	} else {
-		deleteMsg = fmt.Sprintf("Are you sure you want to delete the storage %v that is not currently mounted to any component", o.storageName)
-	}
+
+	mPath := o.localConfig.GetMountPath(o.storageName)
+
+	deleteMsg = fmt.Sprintf("Are you sure you want to delete the storage %v mounted to %v in %v component", o.storageName, mPath, o.localConfig.GetName())
+
 	if o.storageForceDeleteFlag || ui.Proceed(deleteMsg) {
-		o.componentName, err = storage.Delete(o.Client, o.storageName, o.Application)
+		err = o.localConfig.StorageDelete(o.storageName)
 		if err != nil {
 			return fmt.Errorf("failed to delete storage, cause %v", err)
 		}
-		if o.componentName != "" {
-			log.Infof("Deleted storage %v from %v", o.storageName, o.componentName)
-		} else {
-			log.Infof("Deleted storage %v", o.storageName)
-		}
+
+		log.Infof("Deleted storage %v from %v", o.storageName, o.localConfig.GetName())
 	} else {
 		return fmt.Errorf("aborting deletion of storage: %v", o.storageName)
 	}
@@ -112,5 +105,8 @@ func NewCmdStorageDelete(name, fullName string) *cobra.Command {
 	appCmd.AddApplicationFlag(storageDeleteCmd)
 	componentCmd.AddComponentFlag(storageDeleteCmd)
 
+	genericclioptions.AddContextFlag(storageDeleteCmd, &o.componentContext)
+	completion.RegisterCommandFlagHandler(storageDeleteCmd, "context", completion.FileCompletionHandler)
+
 	return storageDeleteCmd
 }

pkg/odo/cli/storage/list.go

@@ -2,22 +2,19 @@ package storage
 
 import (
 	"fmt"
+	"github.com/openshift/odo/pkg/config"
+	"github.com/openshift/odo/pkg/odo/util/completion"
+	"github.com/openshift/odo/pkg/storage"
+	"github.com/openshift/odo/pkg/util"
 	"os"
 
-	"encoding/json"
 	"text/tabwriter"
 
-	"github.com/openshift/odo/pkg/component"
 	"github.com/openshift/odo/pkg/log"
-	"github.com/openshift/odo/pkg/occlient"
 	appCmd "github.com/openshift/odo/pkg/odo/cli/application"
 	componentCmd "github.com/openshift/odo/pkg/odo/cli/component"
 	projectCmd "github.com/openshift/odo/pkg/odo/cli/project"
 	"github.com/openshift/odo/pkg/odo/genericclioptions"
-	odoutil "github.com/openshift/odo/pkg/odo/util"
-	"github.com/openshift/odo/pkg/storage"
-
-	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	ktemplates "k8s.io/kubernetes/pkg/kubectl/cmd/templates"
 
 	"github.com/spf13/cobra"
@@ -35,9 +32,8 @@ var (
 )
 
 type StorageListOptions struct {
-	storageListAllFlag bool
-	componentName      string
-	outputFlag         string
+	componentContext string
+	localConfig      *config.LocalConfigInfo
 	*genericclioptions.Context
 }
 
@@ -49,108 +45,65 @@ func NewStorageListOptions() *StorageListOptions {
 // Complete completes StorageListOptions after they've been created
 func (o *StorageListOptions) Complete(name string, cmd *cobra.Command, args []string) (err error) {
 	o.Context = genericclioptions.NewContext(cmd)
-	if o.storageListAllFlag {
-		if len(genericclioptions.FlagValueIfSet(cmd, genericclioptions.ComponentFlagName)) > 0 {
-			return fmt.Errorf("invalid arguments. Component name is not needed")
-		}
-	} else {
-		o.componentName = o.Component()
+	o.localConfig, err = config.NewLocalConfigInfo(o.componentContext)
+	if err != nil {
+		return err
 	}
 	return
 }
 
 // Validate validates the StorageListOptions based on completed values
 func (o *StorageListOptions) Validate() (err error) {
-	return odoutil.CheckOutputFlag(o.outputFlag)
+	// check the machine readable format
+	if !util.CheckOutputFlag(o.OutputFlag) {
+		return fmt.Errorf("given output format %s is not supported", o.OutputFlag)
+	}
+	return nil
 }
 
 // Run contains the logic for the odo storage list command
 func (o *StorageListOptions) Run() (err error) {
-	if o.outputFlag == "json" {
-		var storeList []storage.Storage
-		if o.storageListAllFlag {
-			componentList, err := component.List(o.Client, o.Application)
-			if err != nil {
-				return err
-			}
-			for _, component := range componentList.Items {
-				mountedStorages, err := storage.ListMounted(o.Client, component.Name, o.Application)
-				if err != nil {
-					return err
-				}
-				for _, storage := range mountedStorages.Items {
-					mounted := getMachineReadableFormat(true, storage)
-					storeList = append(storeList, mounted)
-				}
-			}
+	storageListConfig, err := o.localConfig.StorageList()
+	if err != nil {
+		return err
+	}
 
-		} else {
-			componentName := o.Component()
-			mountedStorages, err := storage.ListMounted(o.Client, componentName, o.Application)
-			if err != nil {
-				return err
-			}
-			for _, storage := range mountedStorages.Items {
-				mounted := getMachineReadableFormat(true, storage)
-				storeList = append(storeList, mounted)
+	storageListMachineReadable := []storage.Storage{}
 
-			}
-		}
-		unmountedStorages, err := storage.ListUnmounted(o.Client, o.Application)
-		if err != nil {
-			return err
-		}
-		for _, storage := range unmountedStorages.Items {
-			unmounted := getMachineReadableFormat(false, storage)
-			storeList = append(storeList, unmounted)
-		}
-		storageList := storage.StorageList{
-			TypeMeta: metav1.TypeMeta{
-				Kind:       "List",
-				APIVersion: "odo.openshift.io/v1aplha1",
-			},
-			ListMeta: metav1.ListMeta{},
-			Items:    storeList,
-		}
-		out, err := json.Marshal(storageList)
-		if err != nil {
-			return err
-		}
-		fmt.Println(string(out))
+	for _, storageConfig := range storageListConfig {
+		storageListMachineReadable = append(storageListMachineReadable, storage.GetMachineReadableFormat(storageConfig.Name, storageConfig.Size, storageConfig.Path))
+	}
+	storageListResultMachineReadable := storage.GetMachineReadableFormatForList(storageListMachineReadable)
+	out, err := util.MachineOutput(o.OutputFlag, storageListResultMachineReadable)
+	if err != nil {
+		return err
+	}
+
+	if out != "" {
+		fmt.Println(out)
 	} else {
+		// defining the column structure of the table
+		tabWriterMounted := tabwriter.NewWriter(os.Stdout, 5, 2, 3, ' ', tabwriter.TabIndent)
 
-		if o.storageListAllFlag {
-			printMountedStorageInAllComponent(o.Client, o.Application)
+		// create headers of mounted storage table
+		fmt.Fprintln(tabWriterMounted, "NAME", "\t", "SIZE", "\t", "PATH")
+		// iterating over all mounted storage and put in the mount storage table
+		if len(storageListConfig) > 0 {
+			for _, mStorage := range storageListConfig {
+				fmt.Fprintln(tabWriterMounted, mStorage.Name, "\t", mStorage.Size, "\t", mStorage.Path)
+			}
+
+			// print all mounted storage of the given component
+			log.Infof("The component '%v' has the following storage attached:", o.localConfig.GetName())
+			tabWriterMounted.Flush()
 		} else {
-			// storageComponent is the input component name
-			componentName := o.Component()
-			printMountedStorageInComponent(o.Client, componentName, o.Application)
+			log.Infof("The component '%v' has no storage attached", o.localConfig.GetName())
 		}
-		printUnmountedStorage(o.Client, o.Application)
+		fmt.Println("")
 	}
 	return
 }
 
-// getMachineReadableFormat returns resource information in machine readable format
-func getMachineReadableFormat(mounted bool, stor storage.Storage) storage.Storage {
-	return storage.Storage{
-		TypeMeta: metav1.TypeMeta{
-			Kind:       "Storage",
-			APIVersion: "odo.openshift.io/v1alpha1",
-		},
-		ObjectMeta: metav1.ObjectMeta{
-			Name: stor.Name,
-		},
-		Spec: storage.StorageSpec{
-			Size: stor.Spec.Size,
-		},
-		Status: storage.StorageStatus{
-			Path: stor.Status.Path,
-		},
-	}
-
-}
-
 // NewCmdStorageList implements the odo storage list command.
 func NewCmdStorageList(name, fullName string) *cobra.Command {
 	o := NewStorageListOptions()
@@ -165,75 +118,13 @@ func NewCmdStorageList(name, fullName string) *cobra.Command {
 		},
 	}
 
-	storageListCmd.Flags().BoolVarP(&o.storageListAllFlag, "all", "a", false, "List all storage in all components")
-	storageListCmd.Flags().StringVarP(&o.outputFlag, "output", "o", "", "output in json format")
-
 	projectCmd.AddProjectFlag(storageListCmd)
 	appCmd.AddApplicationFlag(storageListCmd)
 	componentCmd.AddComponentFlag(storageListCmd)
 
+	genericclioptions.AddOutputFlag(storageListCmd)
+	genericclioptions.AddContextFlag(storageListCmd, &o.componentContext)
+	completion.RegisterCommandFlagHandler(storageListCmd, "context", completion.FileCompletionHandler)
+
 	return storageListCmd
 }
-
-// printMountedStorageInComponent prints all the mounted storage in a given component of the application
-func printMountedStorageInComponent(client *occlient.Client, componentName string, applicationName string) {
-
-	// defining the column structure of the table
-	tabWriterMounted := tabwriter.NewWriter(os.Stdout, 5, 2, 3, ' ', tabwriter.TabIndent)
-
-	// create headers of mounted storage table
-	fmt.Fprintln(tabWriterMounted, "NAME", "\t", "SIZE", "\t", "PATH")
-
-	storageListMounted, err := storage.ListMounted(client, componentName, applicationName)
-	odoutil.LogErrorAndExit(err, "could not get mounted storage list")
-
-	// iterating over all mounted storage and put in the mount storage table
-	if len(storageListMounted.Items) > 0 {
-		for _, mStorage := range storageListMounted.Items {
-			fmt.Fprintln(tabWriterMounted, mStorage.Name, "\t", mStorage.Spec.Size, "\t", mStorage.Status.Path)
-		}
-
-		// print all mounted storage of the given component
-		log.Infof("The component '%v' has the following storage attached:", componentName)
-		tabWriterMounted.Flush()
-	} else {
-		log.Infof("The component '%v' has no storage attached", componentName)
-	}
-	fmt.Println("")
-}
-
-// printMountedStorageInAllComponent prints all the mounted storage in all the components of the application and project
-func printMountedStorageInAllComponent(client *occlient.Client, applicationName string) {
-	componentList, err := component.List(client, applicationName)
-	odoutil.LogErrorAndExit(err, "could not get component list")
-
-	// iterating over all the components in the given aplication and project
-	for _, component := range componentList.Items {
-		printMountedStorageInComponent(client, component.Name, applicationName)
-	}
-}
-
-// printUnmountedStorage prints all the unmounted storage in the application
-func printUnmountedStorage(client *occlient.Client, applicationName string) {
-
-	// defining the column structure of the unmounted storage table
-	tabWriterUnmounted := tabwriter.NewWriter(os.Stdout, 5, 2, 3, ' ', tabwriter.TabIndent)
-
-	// create header of unmounted storage in all the components of the given application and project
-	fmt.Fprintln(tabWriterUnmounted, "NAME", "\t", "SIZE")
-
-	storageListUnmounted, err := storage.ListUnmounted(client, applicationName)
-	odoutil.LogErrorAndExit(err, "could not get unmounted storage list")
-
-	// iterating over all unmounted storage and put in the unmount storage table
-	if len(storageListUnmounted.Items) > 0 {
-		for _, uStorage := range storageListUnmounted.Items {
-			fmt.Fprintln(tabWriterUnmounted, uStorage.Name, "\t", uStorage.Spec.Size)
-		}
-
-		// print unmounted storage of all the application
-		log.Info("Storage that are not mounted to any component:")
-		tabWriterUnmounted.Flush()
-	}
-	fmt.Println("")
-}

pkg/odo/cli/storage/storage.go

@@ -2,7 +2,6 @@ package storage
 
 import (
 	"fmt"
-
 	"github.com/openshift/odo/pkg/occlient"
 	odoutil "github.com/openshift/odo/pkg/odo/util"
 	"github.com/openshift/odo/pkg/storage"
@@ -24,25 +23,25 @@ func NewCmdStorage(name, fullName string) *cobra.Command {
 	storageCreateCmd := NewCmdStorageCreate(createRecommendedCommandName, odoutil.GetFullName(fullName, createRecommendedCommandName))
 	storageDeleteCmd := NewCmdStorageDelete(deleteRecommendedCommandName, odoutil.GetFullName(fullName, deleteRecommendedCommandName))
 	storageListCmd := NewCmdStorageList(listRecommendedCommandName, odoutil.GetFullName(fullName, listRecommendedCommandName))
-	storageMountCmd := NewCmdStorageMount(mountRecommendedCommandName, odoutil.GetFullName(fullName, mountRecommendedCommandName))
-	storageUnMountCmd := NewCmdStorageUnMount(unMountRecommendedCommandName, odoutil.GetFullName(fullName, unMountRecommendedCommandName))
+	//storageMountCmd := NewCmdStorageMount(mountRecommendedCommandName, odoutil.GetFullName(fullName, mountRecommendedCommandName))
+	//storageUnMountCmd := NewCmdStorageUnMount(unMountRecommendedCommandName, odoutil.GetFullName(fullName, unMountRecommendedCommandName))
 
 	var storageCmd = &cobra.Command{
 		Use:   name,
 		Short: storageShortDesc,
 		Long:  storageLongDesc,
-		Example: fmt.Sprintf("%s\n%s\n%s\n%s",
+		Example: fmt.Sprintf("%s\n%s\n%s",
 			storageCreateCmd.Example,
 			storageDeleteCmd.Example,
-			storageUnMountCmd.Example,
+			//storageUnMountCmd.Example,
 			storageListCmd.Example),
 	}
 
 	storageCmd.AddCommand(storageCreateCmd)
 	storageCmd.AddCommand(storageDeleteCmd)
-	storageCmd.AddCommand(storageUnMountCmd)
+	//storageCmd.AddCommand(storageUnMountCmd)
 	storageCmd.AddCommand(storageListCmd)
-	storageCmd.AddCommand(storageMountCmd)
+	//storageCmd.AddCommand(storageMountCmd)
 
 	// Add a defined annotation in order to appear in the help menu
 	storageCmd.Annotations = map[string]string{"command": "other"}

pkg/odo/util/cmdutils.go

@@ -2,6 +2,7 @@ package util
 
 import (
 	"fmt"
+	"github.com/openshift/odo/pkg/config"
 	"os"
 	"strings"
 	"unicode"
@@ -10,7 +11,6 @@ import (
 	"github.com/openshift/odo/pkg/component"
 	"github.com/openshift/odo/pkg/log"
 	"github.com/openshift/odo/pkg/occlient"
-	storagePkg "github.com/openshift/odo/pkg/storage"
 	urlPkg "github.com/openshift/odo/pkg/url"
 	"github.com/pkg/errors"
 	"github.com/spf13/cobra"
@@ -46,6 +46,10 @@ func CheckOutputFlag(outputFlag string) error {
 
 // PrintComponentInfo prints Component Information like path, URL & storage
 func PrintComponentInfo(client *occlient.Client, currentComponentName string, componentDesc component.Component, applicationName string) {
+	localConfig, err := config.New()
+	if err != nil {
+		LogErrorAndExit(err, "")
+	}
 	fmt.Printf("Component Name: %v\nType: %v\n", currentComponentName, componentDesc.Spec.Type)
 	// Source
 	if componentDesc.Spec.Source != "" {
@@ -62,11 +66,10 @@ func PrintComponentInfo(client *occlient.Client, currentComponentName string, co
 	// Storage
 	if len(componentDesc.Spec.Storage) > 0 {
 		fmt.Println("\nStorage:")
-		storages, err := storagePkg.List(client, currentComponentName, applicationName)
+		storages, err := localConfig.StorageList()
 		LogErrorAndExit(err, "")
-		for _, storage := range componentDesc.Spec.Storage {
-			store := storages.Get(storage)
-			fmt.Printf(" - %v of size %v mounted to %v\n", store.Name, store.Spec.Size, store.Status.Path)
+		for _, store := range storages {
+			fmt.Printf(" - %v of size %v mounted to %v\n", store.Name, store.Size, store.Path)
 		}
 	}
 	// URL

pkg/odo/util/completion/completionhandlers.go

@@ -2,6 +2,7 @@ package completion
 
 import (
 	"fmt"
+	"github.com/openshift/odo/pkg/config"
 	"strings"
 
 	appsv1 "github.com/openshift/api/apps/v1"
@@ -205,12 +206,18 @@ var URLCompletionHandler = func(cmd *cobra.Command, args parsedArgs, context *ge
 // StorageDeleteCompletionHandler provides storage name completion for storage delete
 var StorageDeleteCompletionHandler = func(cmd *cobra.Command, args parsedArgs, context *genericclioptions.Context) (completions []string) {
 	completions = make([]string, 0)
-	storageList, err := storage.List(context.Client, context.Component(), context.Application)
+
+	localConfig, err := config.New()
 	if err != nil {
 		return completions
 	}
 
-	for _, storage := range storageList.Items {
+	storageList, err := localConfig.StorageList()
+	if err != nil {
+		return completions
+	}
+
+	for _, storage := range storageList {
 		// we found the storage name in the list which means
 		// that the storage name has been already selected by the user so no need to suggest more
 		if args.commands[storage.Name] {

pkg/storage/storage.go

@@ -2,18 +2,18 @@ package storage
 
 import (
 	"fmt"
+	"github.com/openshift/odo/pkg/log"
 
 	applabels "github.com/openshift/odo/pkg/application/labels"
 	componentlabels "github.com/openshift/odo/pkg/component/labels"
 	"github.com/openshift/odo/pkg/occlient"
 	storagelabels "github.com/openshift/odo/pkg/storage/labels"
 	"github.com/openshift/odo/pkg/util"
-
-	corev1 "k8s.io/api/core/v1"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 
 	"github.com/golang/glog"
 	"github.com/pkg/errors"
+	corev1 "k8s.io/api/core/v1"
 )
 
 // Get returns Storage defination for given Storage name
@@ -28,14 +28,14 @@ func (storages StorageList) Get(storageName string) Storage {
 }
 
 // Create adds storage to given component of given application
-func Create(client *occlient.Client, name string, size string, path string, componentName string, applicationName string) (Storage, error) {
+func Create(client *occlient.Client, name string, size string, componentName string, applicationName string) (*corev1.PersistentVolumeClaim, error) {
 
 	// Namespace the component
 	// We will use name+applicationName instead of componentName+applicationName until:
 	// https://github.com/openshift/odo/issues/504 is resolved.
 	namespacedOpenShiftObject, err := util.NamespaceOpenShiftObject(name, applicationName)
 	if err != nil {
-		return Storage{}, errors.Wrapf(err, "unable to create namespaced name")
+		return nil, errors.Wrapf(err, "unable to create namespaced name")
 	}
 
 	labels := storagelabels.GetLabels(name, componentName, applicationName, true)
@@ -45,25 +45,9 @@ func Create(client *occlient.Client, name string, size string, path string, comp
 	// Create PVC
 	pvc, err := client.CreatePVC(generatePVCNameFromStorageName(namespacedOpenShiftObject), size, labels)
 	if err != nil {
-		return Storage{}, errors.Wrap(err, "unable to create PVC")
+		return nil, errors.Wrap(err, "unable to create PVC")
 	}
-
-	// Get DeploymentConfig for the given component
-	componentLabels := componentlabels.GetLabels(componentName, applicationName, false)
-	componentSelector := util.ConvertLabelsToSelector(componentLabels)
-	dc, err := client.GetOneDeploymentConfigFromSelector(componentSelector)
-	if err != nil {
-		return Storage{}, errors.Wrapf(err, "unable to get Deployment Config for component: %v in application: %v", componentName, applicationName)
-	}
-	glog.V(4).Infof("Deployment Config: %v is associated with the component: %v", dc.Name, componentName)
-
-	// Add PVC to DeploymentConfig
-	if err := client.AddPVCToDeploymentConfig(dc, pvc.Name, path); err != nil {
-		return Storage{}, errors.Wrap(err, "unable to add PVC to DeploymentConfig")
-	}
-
-	// getting the machine readable output format and mark status as active
-	return getMachineReadableFormat(*pvc, path), nil
+	return pvc, nil
 }
 
 // Unmount unmounts the given storage from the given component
@@ -106,35 +90,23 @@ func Unmount(client *occlient.Client, storageName string, componentName string,
 
 // Delete removes storage from the given application.
 // Delete returns the component name, if it is mounted to a component, or "" and the error, if any
-func Delete(client *occlient.Client, name string, applicationName string) (string, error) {
-	// unmount the storage from the component if mounted
-	componentName, err := GetComponentNameFromStorageName(client, name)
-	if err != nil {
-		return "", errors.Wrap(err, "unable to find component name and app name")
-	}
-	if componentName != "" {
-		err := Unmount(client, name, componentName, applicationName, false)
-		if err != nil {
-			return "", errors.Wrapf(err, "unable to unmount storage %v", name)
-		}
-	}
-
+func Delete(client *occlient.Client, name string) error {
 	pvcName, err := getPVCNameFromStorageName(client, name)
 	if err != nil {
-		return "", errors.Wrapf(err, "unable to get PVC for storage %v", name)
+		return errors.Wrapf(err, "unable to get PVC for storage %v", name)
 	}
 
 	// delete the associated PVC with the component
 	err = client.DeletePVC(pvcName)
 	if err != nil {
-		return "", errors.Wrapf(err, "unable to delete PVC %v", pvcName)
+		return errors.Wrapf(err, "unable to delete PVC %v", pvcName)
 	}
 
-	return componentName, nil
+	return nil
 }
 
 // List lists all the mounted storage associated with the given component of the given
-// application and the unmounted storages in the given application
+// application and the unmounted storage in the given application
 func List(client *occlient.Client, componentName string, applicationName string) (StorageList, error) {
 	componentLabels := componentlabels.GetLabels(componentName, applicationName, false)
 	componentSelector := util.ConvertLabelsToSelector(componentLabels)
@@ -144,7 +116,19 @@ func List(client *occlient.Client, componentName string, applicationName string)
 		return StorageList{}, errors.Wrapf(err, "unable to get Deployment Config associated with component %v", componentName)
 	}
 
-	// store the storages in a map for faster searching with the key instead of list
+	pvcs, err := client.GetPVCsFromSelector(storagelabels.StorageLabel)
+	if err != nil {
+		return StorageList{}, errors.Wrapf(err, "unable to get PVC using selector %v", storagelabels.StorageLabel)
+	}
+
+	pvcMap := make(map[string]*corev1.PersistentVolumeClaim)
+	// store in map for faster searching
+	for _, pvc := range pvcs {
+		readPVC := pvc
+		pvcMap[pvc.Name] = &readPVC
+	}
+
+	// store the storage in a map for faster searching with the key instead of list
 	mountedStorageMap := make(map[string]string)
 	volumeMounts := client.GetVolumeMountsFromDC(dc)
 	for _, volumeMount := range volumeMounts {
@@ -158,19 +142,21 @@ func List(client *occlient.Client, componentName string, applicationName string)
 		if pvcName == "" {
 			return StorageList{}, fmt.Errorf("no PVC associated with Volume Mount %v", volumeMount.Name)
 		}
-		pvc, err := client.GetPVCFromName(pvcName)
-		if err != nil {
-			return StorageList{}, errors.Wrapf(err, "unable to get PVC %v", pvcName)
+
+		pvc, ok := pvcMap[pvcName]
+		if !ok {
+			// since the pvc doesn't exist, it might be a supervisorD volume
+			// if true, continue
+			if client.IsAppSupervisorDVolume(volumeMount.Name, dc.Name) {
+				continue
+			}
+			return StorageList{}, fmt.Errorf("unable to get PVC %v", pvcName)
 		}
 
 		storageName := getStorageFromPVC(pvc)
 		mountedStorageMap[storageName] = volumeMount.MountPath
 	}
 
-	pvcs, err := client.GetPVCsFromSelector(storagelabels.StorageLabel)
-	if err != nil {
-		return StorageList{}, errors.Wrapf(err, "unable to get PVC using selector %v", storagelabels.StorageLabel)
-	}
 	var storage []Storage
 	for _, pvc := range pvcs {
 		pvcComponentName, ok := pvc.Labels[componentlabels.ComponentLabel]
@@ -183,11 +169,15 @@ func List(client *occlient.Client, componentName string, applicationName string)
 				return StorageList{}, fmt.Errorf("no PVC associated")
 			}
 			storageName := getStorageFromPVC(&pvc)
-			storageMachineReadable := getMachineReadableFormat(pvc, mountedStorageMap[storageName])
+			storageSize := pvc.Spec.Resources.Requests[corev1.ResourceStorage]
+			storageMachineReadable := GetMachineReadableFormat(getStorageFromPVC(&pvc),
+				storageSize.String(),
+				mountedStorageMap[storageName],
+			)
 			storage = append(storage, storageMachineReadable)
 		}
 	}
-	storageList := getMachineReadableFormatForList(storage)
+	storageList := GetMachineReadableFormatForList(storage)
 	return storageList, nil
 }
 
@@ -203,7 +193,7 @@ func ListMounted(client *occlient.Client, componentName string, applicationName
 			storageListMounted = append(storageListMounted, storage)
 		}
 	}
-	return getMachineReadableFormatForList(storageListMounted), nil
+	return GetMachineReadableFormatForList(storageListMounted), nil
 }
 
 // ListUnmounted lists all the unmounted storage associated with the given application
@@ -222,11 +212,15 @@ func ListUnmounted(client *occlient.Client, applicationName string) (StorageList
 			if pvc.Name == "" {
 				return StorageList{}, fmt.Errorf("no PVC associated")
 			}
-			storageMachineReadable := getMachineReadableFormat(pvc, "")
+			storageSize := pvc.Spec.Resources.Requests[corev1.ResourceStorage]
+			storageMachineReadable := GetMachineReadableFormat(getStorageFromPVC(&pvc),
+				storageSize.String(),
+				"",
+			)
 			storage = append(storage, storageMachineReadable)
 		}
 	}
-	storageList := getMachineReadableFormatForList(storage)
+	storageList := GetMachineReadableFormatForList(storage)
 	return storageList, nil
 }
 
@@ -316,18 +310,6 @@ func IsMounted(client *occlient.Client, storageName string, componentName string
 	return false, nil
 }
 
-//GetMountPath returns mount path for given storage
-func GetMountPath(client *occlient.Client, storageName string, componentName string, applicationName string) string {
-	var mPath string
-	storageList, _ := List(client, componentName, applicationName)
-	for _, storage := range storageList.Items {
-		if storage.Name == storageName {
-			mPath = storage.Status.Path
-		}
-	}
-	return mPath
-}
-
 // Mount mounts the given storage to the given component
 func Mount(client *occlient.Client, path string, storageName string, componentName string, applicationName string) error {
 	storageComponent, err := GetComponentNameFromStorageName(client, storageName)
@@ -383,8 +365,76 @@ func GetStorageNameFromMountPath(client *occlient.Client, path string, component
 	return "", nil
 }
 
-// getMachineReadableFormatForList gives machine readable StorageList definition
-func getMachineReadableFormatForList(storage []Storage) StorageList {
+// Push creates/deletes the required storage during `odo push`
+// storageList are the storage mentioned in the config
+// isComponentExists indicates if the component exists or not, if not, we don't run the list operation
+// returns the storage for mounting and unMounting from the DC
+// StorageToBeMounted describes the storage to be mounted
+// StorageToBeMounted : storagePath is the key of the map, the generatedPVC is the value of the map
+// StorageToBeUnMounted describes the storage to be unmounted
+// StorageToBeUnMounted : path is the key of the map,storageName is the value of the map
+func Push(client *occlient.Client, storageList StorageList, componentName, applicationName string, isComponentExits bool) (map[string]*corev1.PersistentVolumeClaim, map[string]string, error) {
+	// list all the storage in the cluster
+	storageClusterList := StorageList{}
+	var err error
+	if isComponentExits {
+		storageClusterList, err = ListMounted(client, componentName, applicationName)
+
+	}
+	if err != nil {
+		return nil, nil, err
+	}
+	storageClusterNames := make(map[string]Storage)
+	for _, storage := range storageClusterList.Items {
+		storageClusterNames[storage.Name] = storage
+	}
+
+	// list all the storage in the config
+	storageConfigNames := make(map[string]Storage)
+	for _, storage := range storageList.Items {
+		storageConfigNames[storage.Name] = storage
+	}
+
+	storageToBeMounted := make(map[string]*corev1.PersistentVolumeClaim)
+	storageToBeUnMounted := make(map[string]string)
+
+	// find storage to delete
+	for _, storage := range storageClusterList.Items {
+		val, ok := storageConfigNames[storage.Name]
+		if !ok {
+			// delete the pvc
+			err = Delete(client, storage.Name)
+			if err != nil {
+				return nil, nil, err
+			}
+			log.Successf("Deleted storage %v from %v", storage.Name, componentName)
+			storageToBeUnMounted[storage.Status.Path] = storage.Name
+			continue
+		} else if storage.Name == val.Name {
+			if val.Spec.Size != storage.Spec.Size || val.Status.Path != storage.Status.Path {
+				return nil, nil, errors.Errorf("config mismatch for storage with the same name %s", storage.Name)
+			}
+		}
+	}
+
+	// find storage to create
+	for _, storage := range storageList.Items {
+		_, ok := storageClusterNames[storage.Name]
+		if !ok {
+			createdPVC, err := Create(client, storage.Name, storage.Spec.Size, componentName, applicationName)
+			if err != nil {
+				return nil, nil, err
+			}
+			log.Successf("Added storage %v to %v", storage.Name, componentName)
+			storageToBeMounted[storage.Status.Path] = createdPVC
+		}
+	}
+
+	return storageToBeMounted, storageToBeUnMounted, err
+}
+
+// GetMachineReadableFormatForList gives machine readable StorageList definition
+func GetMachineReadableFormatForList(storage []Storage) StorageList {
 	return StorageList{
 		TypeMeta: metav1.TypeMeta{
 			Kind:       "List",
@@ -395,20 +445,17 @@ func getMachineReadableFormatForList(storage []Storage) StorageList {
 	}
 }
 
-// getMachineReadableFormat gives machine readable Storage definition
+// GetMachineReadableFormat gives machine readable Storage definition
 // storagePath indicates the path to which the storage is mounted to, "" if not mounted
-func getMachineReadableFormat(pvc corev1.PersistentVolumeClaim, storagePath string) Storage {
-	storageName := getStorageFromPVC(&pvc)
-	storageSize := pvc.Spec.Resources.Requests[corev1.ResourceStorage]
+func GetMachineReadableFormat(storageName, storageSize, storagePath string) Storage {
 	return Storage{
 		TypeMeta:   metav1.TypeMeta{Kind: "storage", APIVersion: "odo.openshift.io/v1alpha1"},
 		ObjectMeta: metav1.ObjectMeta{Name: storageName},
 		Spec: StorageSpec{
-			Size: storageSize.String(),
+			Size: storageSize,
 		},
 		Status: StorageStatus{
 			Path: storagePath,
 		},
 	}
-
 }

pkg/storage/storage_test.go

@@ -1,17 +1,29 @@
 package storage
 
 import (
+	"github.com/openshift/odo/pkg/occlient"
+	"github.com/openshift/odo/pkg/testingutil"
+	"github.com/openshift/odo/pkg/util"
 	"reflect"
 	"testing"
 
+	v1 "github.com/openshift/api/apps/v1"
+	appLabels "github.com/openshift/odo/pkg/application/labels"
+	componentLabels "github.com/openshift/odo/pkg/component/labels"
 	"github.com/openshift/odo/pkg/storage/labels"
-	storagelabels "github.com/openshift/odo/pkg/storage/labels"
+	storageLabels "github.com/openshift/odo/pkg/storage/labels"
 	corev1 "k8s.io/api/core/v1"
 	"k8s.io/apimachinery/pkg/api/resource"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"k8s.io/apimachinery/pkg/runtime"
+	ktesting "k8s.io/client-go/testing"
 )
 
-func Test_getStorageFromPVC(t *testing.T) {
+func getStorageLabels(storageName, componentName, applicationName string) map[string]string {
+	return storageLabels.GetLabels(storageName, componentName, applicationName, true)
+}
+
+func Test_GetStorageFromPVC(t *testing.T) {
 	type args struct {
 		pvc *corev1.PersistentVolumeClaim
 	}
@@ -55,35 +67,19 @@ func Test_getStorageFromPVC(t *testing.T) {
 	}
 }
 
-func Test_getMachineReadableFormat(t *testing.T) {
-	quantity, err := resource.ParseQuantity("100Mi")
-	if err != nil {
-		t.Errorf("unable to parse size")
-	}
+func TestGetMachineReadableFormat(t *testing.T) {
 	tests := []struct {
 		name         string
-		inputPVC     *corev1.PersistentVolumeClaim
+		storageName  string
+		storageSize  string
 		mountedPath  string
 		activeStatus bool
 		want         Storage
 	}{
 		{
-			name: "test case 1: with a pvc, valid path and mounted status",
-			inputPVC: &corev1.PersistentVolumeClaim{
-				ObjectMeta: metav1.ObjectMeta{
-					Name: "pvc-example",
-					Labels: map[string]string{
-						storagelabels.StorageLabel: "pvc-example",
-					},
-				},
-				Spec: corev1.PersistentVolumeClaimSpec{
-					Resources: corev1.ResourceRequirements{
-						Requests: corev1.ResourceList{
-							corev1.ResourceStorage: quantity,
-						},
-					},
-				},
-			},
+			name:         "test case 1: with a pvc, valid path and mounted status",
+			storageName:  "pvc-example",
+			storageSize:  "100Mi",
 			mountedPath:  "data",
 			activeStatus: true,
 			want: Storage{
@@ -100,22 +96,9 @@ func Test_getMachineReadableFormat(t *testing.T) {
 			},
 		},
 		{
-			name: "test case 2: with a pvc, empty path and unmounted status",
-			inputPVC: &corev1.PersistentVolumeClaim{
-				ObjectMeta: metav1.ObjectMeta{
-					Name: "pvc-example",
-					Labels: map[string]string{
-						storagelabels.StorageLabel: "pvc-example",
-					},
-				},
-				Spec: corev1.PersistentVolumeClaimSpec{
-					Resources: corev1.ResourceRequirements{
-						Requests: corev1.ResourceList{
-							corev1.ResourceStorage: quantity,
-						},
-					},
-				},
-			},
+			name:         "test case 2: with a pvc, empty path and unmounted status",
+			storageName:  "pvc-example",
+			storageSize:  "500Mi",
 			mountedPath:  "",
 			activeStatus: false,
 			want: Storage{
@@ -124,7 +107,7 @@ func Test_getMachineReadableFormat(t *testing.T) {
 				},
 				TypeMeta: metav1.TypeMeta{Kind: "storage", APIVersion: "odo.openshift.io/v1alpha1"},
 				Spec: StorageSpec{
-					Size: "100Mi",
+					Size: "500Mi",
 				},
 				Status: StorageStatus{
 					Path: "",
@@ -134,7 +117,7 @@ func Test_getMachineReadableFormat(t *testing.T) {
 	}
 	for _, tt := range tests {
 		t.Run(tt.name, func(t *testing.T) {
-			gotStorage := getMachineReadableFormat(*tt.inputPVC, tt.mountedPath)
+			gotStorage := GetMachineReadableFormat(tt.storageName, tt.storageSize, tt.mountedPath)
 			if !reflect.DeepEqual(tt.want, gotStorage) {
 				t.Errorf("the returned storage is different, expected: %v, got: %v", tt.want, gotStorage)
 			}
@@ -142,7 +125,7 @@ func Test_getMachineReadableFormat(t *testing.T) {
 	}
 }
 
-func Test_getMachineReadableFormatForList(t *testing.T) {
+func TestGetMachineReadableFormatForList(t *testing.T) {
 
 	tests := []struct {
 		name         string
@@ -270,10 +253,599 @@ func Test_getMachineReadableFormatForList(t *testing.T) {
 	}
 	for _, tt := range tests {
 		t.Run(tt.name, func(t *testing.T) {
-			gotStorage := getMachineReadableFormatForList(tt.inputStorage)
+			gotStorage := GetMachineReadableFormatForList(tt.inputStorage)
 			if !reflect.DeepEqual(tt.want, gotStorage) {
 				t.Errorf("the returned storage is different, expected: %v, got: %v", tt.want, gotStorage)
 			}
 		})
 	}
 }
+
+func TestCreate(t *testing.T) {
+	type args struct {
+		name            string
+		size            string
+		componentName   string
+		applicationName string
+	}
+	tests := []struct {
+		name       string
+		args       args
+		wantLabels map[string]string
+		wantErr    bool
+	}{
+		{
+			name: "case 1: with valid values",
+			args: args{
+				name:            "storage-0",
+				size:            "100Mi",
+				componentName:   "nodejs-ex",
+				applicationName: "app-ex",
+			},
+			wantLabels: map[string]string{
+				"app":                          "app-ex",
+				labels.StorageLabel:            "storage-0",
+				appLabels.ApplicationLabel:     "app-ex",
+				componentLabels.ComponentLabel: "nodejs-ex",
+			},
+			wantErr: false,
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			fkclient, fkclientset := occlient.FakeNew()
+
+			createdPVC, err := Create(fkclient, tt.args.name, tt.args.size, tt.args.componentName, tt.args.applicationName)
+
+			// Check for validating actions performed
+			if (len(fkclientset.Kubernetes.Actions()) != 1) && (tt.wantErr != true) {
+				t.Errorf("expected 1 action in CreatePVC got: %v", fkclientset.RouteClientset.Actions())
+			}
+
+			// Checks for return values in positive cases
+			if err == nil {
+				quantity, err := resource.ParseQuantity(tt.args.size)
+				if err != nil {
+					t.Errorf("failed to create quantity by calling resource.ParseQuantity(%v)", tt.args.size)
+				}
+
+				// created PVC should be labeled with labels passed to CreatePVC
+				if !reflect.DeepEqual(createdPVC.Labels, tt.wantLabels) {
+					t.Errorf("labels in created route is not matching expected labels, expected: %v, got: %v", tt.wantLabels, createdPVC.Labels)
+				}
+				// name, size of createdPVC should be matching to size, name passed to CreatePVC
+				if !reflect.DeepEqual(createdPVC.Spec.Resources.Requests["storage"], quantity) {
+					t.Errorf("size of PVC is not matching to expected size, expected: %v, got %v", quantity, createdPVC.Spec.Resources.Requests["storage"])
+				}
+			}
+		})
+	}
+}
+
+func TestList(t *testing.T) {
+
+	mountMap := make(map[string]*corev1.PersistentVolumeClaim)
+
+	pvc1 := testingutil.FakePVC(generatePVCNameFromStorageName("storage-1-app"), "100Mi", getStorageLabels("storage-1", "nodejs", "app"))
+	mountMap["data"] = pvc1
+
+	pvc2 := testingutil.FakePVC(generatePVCNameFromStorageName("storage-2-app"), "500Mi", getStorageLabels("storage-2", "nodejs", "app"))
+	mountMap["data-1"] = pvc2
+
+	// pvc mounted to different app
+	pvc3 := testingutil.FakePVC(generatePVCNameFromStorageName("storage-3-app"), "100Mi", getStorageLabels("storage-3", "wildfly", "app"))
+
+	// unMounted pvc
+	pvc4 := testingutil.FakePVC(generatePVCNameFromStorageName("storage-4-app"), "100Mi", getStorageLabels("storage-4", "", "app"))
+	delete(pvc4.Labels, componentLabels.ComponentLabel)
+
+	// mounted to the deploymentConfig but not returned and thus doesn't exist on the cluster
+	pvc5 := testingutil.FakePVC(generatePVCNameFromStorageName("storage-5-app"), "100Mi", getStorageLabels("storage-5", "nodejs", "app"))
+
+	type args struct {
+		componentName   string
+		applicationName string
+	}
+	tests := []struct {
+		name              string
+		args              args
+		componentType     string
+		returnedPVCs      corev1.PersistentVolumeClaimList
+		mountedMap        map[string]*corev1.PersistentVolumeClaim
+		wantedStorageList StorageList
+		wantErr           bool
+	}{
+		{
+			name: "case 1: no error and all PVCs mounted",
+			args: args{
+				componentName:   "nodejs",
+				applicationName: "app",
+			},
+			returnedPVCs: corev1.PersistentVolumeClaimList{
+				Items: []corev1.PersistentVolumeClaim{
+					*pvc1, *pvc2,
+				},
+			},
+			mountedMap: map[string]*corev1.PersistentVolumeClaim{
+				"/data":   pvc1,
+				"/data-1": pvc2,
+			},
+			wantedStorageList: GetMachineReadableFormatForList([]Storage{
+				GetMachineReadableFormat("storage-1", "100Mi", "/data"),
+				GetMachineReadableFormat("storage-2", "500Mi", "/data-1"),
+			}),
+			wantErr: false,
+		},
+		{
+			name: "case 2: no error and two PVCs mounted and one mounted to a different app",
+			args: args{
+				componentName:   "nodejs",
+				applicationName: "app",
+			},
+			returnedPVCs: corev1.PersistentVolumeClaimList{
+				Items: []corev1.PersistentVolumeClaim{
+					*pvc1, *pvc2, *pvc3,
+				},
+			},
+			mountedMap: map[string]*corev1.PersistentVolumeClaim{
+				"/data":   pvc1,
+				"/data-1": pvc2,
+			},
+			wantedStorageList: GetMachineReadableFormatForList([]Storage{
+				GetMachineReadableFormat("storage-1", "100Mi", "/data"),
+				GetMachineReadableFormat("storage-2", "500Mi", "/data-1"),
+			}),
+			wantErr: false,
+		},
+		{
+			name: "case 3: no error and two PVCs mounted and one unmounted",
+			args: args{
+				componentName:   "nodejs",
+				applicationName: "app",
+			},
+			returnedPVCs: corev1.PersistentVolumeClaimList{
+				Items: []corev1.PersistentVolumeClaim{
+					*pvc1, *pvc2, *pvc4,
+				},
+			},
+			mountedMap: map[string]*corev1.PersistentVolumeClaim{
+				"/data":   pvc1,
+				"/data-1": pvc2,
+			},
+			wantedStorageList: GetMachineReadableFormatForList([]Storage{
+				GetMachineReadableFormat("storage-1", "100Mi", "/data"),
+				GetMachineReadableFormat("storage-2", "500Mi", "/data-1"),
+				GetMachineReadableFormat("storage-4", "100Mi", ""),
+			}),
+			wantErr: false,
+		},
+		{
+			name: "case 4: pvc mounted but doesn't exist on cluster",
+			args: args{
+				componentName:   "nodejs",
+				applicationName: "app",
+			},
+			returnedPVCs: corev1.PersistentVolumeClaimList{
+				Items: []corev1.PersistentVolumeClaim{
+					*pvc1, *pvc2,
+				},
+			},
+			mountedMap: map[string]*corev1.PersistentVolumeClaim{
+				"/data":   pvc1,
+				"/data-1": pvc5,
+			},
+			wantedStorageList: GetMachineReadableFormatForList([]Storage{
+				GetMachineReadableFormat("storage-1", "100Mi", "/data"),
+				GetMachineReadableFormat("storage-2", "500Mi", "/data-1"),
+			}),
+			wantErr: true,
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			fakeClient, fakeClientSet := occlient.FakeNew()
+
+			dcTesting := testingutil.OneFakeDeploymentConfigWithMounts(tt.args.componentName, tt.componentType, tt.args.applicationName, tt.mountedMap)
+
+			fakeClientSet.AppsClientset.PrependReactor("list", "deploymentconfigs", func(action ktesting.Action) (bool, runtime.Object, error) {
+				return true, &v1.DeploymentConfigList{
+					Items: []v1.DeploymentConfig{
+						*dcTesting,
+					},
+				}, nil
+			})
+
+			fakeClientSet.Kubernetes.PrependReactor("list", "persistentvolumeclaims", func(action ktesting.Action) (bool, runtime.Object, error) {
+				return true, &tt.returnedPVCs, nil
+			})
+
+			storageList, err := List(fakeClient, tt.args.componentName, tt.args.applicationName)
+			if err == nil && !tt.wantErr {
+				if !reflect.DeepEqual(storageList, tt.wantedStorageList) {
+					t.Errorf("storageList not equal, expected: %v, got: %v", tt.wantedStorageList, storageList.Items)
+				}
+			} else if err == nil && tt.wantErr {
+				t.Error("test failed, expected: false, got true")
+			} else if err != nil && !tt.wantErr {
+				t.Errorf("test failed, expected: no error, got error: %s", err.Error())
+			}
+		})
+	}
+}
+
+func TestListMounted(t *testing.T) {
+	mountMap := make(map[string]*corev1.PersistentVolumeClaim)
+
+	pvc1 := testingutil.FakePVC(generatePVCNameFromStorageName("storage-1-app"), "100Mi", getStorageLabels("storage-1", "nodejs", "app"))
+	mountMap["data"] = pvc1
+
+	pvc2 := testingutil.FakePVC(generatePVCNameFromStorageName("storage-2-app"), "500Mi", getStorageLabels("storage-2", "nodejs", "app"))
+	mountMap["data-1"] = pvc2
+
+	// unMounted pvc
+	pvc3 := testingutil.FakePVC(generatePVCNameFromStorageName("storage-3-app"), "100Mi", getStorageLabels("storage-3", "", "app"))
+	delete(pvc3.Labels, componentLabels.ComponentLabel)
+
+	type args struct {
+		componentName   string
+		applicationName string
+	}
+	tests := []struct {
+		name              string
+		args              args
+		componentType     string
+		returnedPVCs      corev1.PersistentVolumeClaimList
+		mountedMap        map[string]*corev1.PersistentVolumeClaim
+		wantedStorageList StorageList
+		wantErr           bool
+	}{
+		{
+			name: "case 1: no error and all PVCs mounted",
+			args: args{
+				componentName:   "nodejs",
+				applicationName: "app",
+			},
+			returnedPVCs: corev1.PersistentVolumeClaimList{
+				Items: []corev1.PersistentVolumeClaim{
+					*pvc1, *pvc2,
+				},
+			},
+			mountedMap: map[string]*corev1.PersistentVolumeClaim{
+				"/data":   pvc1,
+				"/data-1": pvc2,
+			},
+			wantedStorageList: GetMachineReadableFormatForList([]Storage{
+				GetMachineReadableFormat("storage-1", "100Mi", "/data"),
+				GetMachineReadableFormat("storage-2", "500Mi", "/data-1"),
+			}),
+			wantErr: false,
+		},
+		{
+			name: "case 3: no error and two PVCs mounted and one unmounted",
+			args: args{
+				componentName:   "nodejs",
+				applicationName: "app",
+			},
+			returnedPVCs: corev1.PersistentVolumeClaimList{
+				Items: []corev1.PersistentVolumeClaim{
+					*pvc1, *pvc2, *pvc3,
+				},
+			},
+			mountedMap: map[string]*corev1.PersistentVolumeClaim{
+				"/data":   pvc1,
+				"/data-1": pvc2,
+			},
+			wantedStorageList: GetMachineReadableFormatForList([]Storage{
+				GetMachineReadableFormat("storage-1", "100Mi", "/data"),
+				GetMachineReadableFormat("storage-2", "500Mi", "/data-1"),
+			}),
+			wantErr: false,
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			fakeClient, fakeClientSet := occlient.FakeNew()
+
+			dcTesting := testingutil.OneFakeDeploymentConfigWithMounts(tt.args.componentName, tt.componentType, tt.args.applicationName, tt.mountedMap)
+
+			fakeClientSet.AppsClientset.PrependReactor("list", "deploymentconfigs", func(action ktesting.Action) (bool, runtime.Object, error) {
+				return true, &v1.DeploymentConfigList{
+					Items: []v1.DeploymentConfig{
+						*dcTesting,
+					},
+				}, nil
+			})
+
+			fakeClientSet.Kubernetes.PrependReactor("list", "persistentvolumeclaims", func(action ktesting.Action) (bool, runtime.Object, error) {
+				return true, &tt.returnedPVCs, nil
+			})
+
+			storageList, err := ListMounted(fakeClient, tt.args.componentName, tt.args.applicationName)
+			if err == nil && !tt.wantErr {
+				if !reflect.DeepEqual(storageList, tt.wantedStorageList) {
+					t.Errorf("storageList not equal, expected: %v, got: %v", tt.wantedStorageList, storageList.Items)
+				}
+			} else if err == nil && tt.wantErr {
+				t.Error("test failed, expected: false, got true")
+			} else if err != nil && !tt.wantErr {
+				t.Errorf("test failed, expected: no error, got error: %s", err.Error())
+			}
+		})
+
+	}
+
+}
+
+func TestPush(t *testing.T) {
+	mountMap := make(map[string]*corev1.PersistentVolumeClaim)
+
+	pvc1 := testingutil.FakePVC(generatePVCNameFromStorageName("backend-app"), "100Mi", getStorageLabels("backend", "nodejs", "app"))
+	mountMap["data"] = pvc1
+
+	pvc2 := testingutil.FakePVC(generatePVCNameFromStorageName("backend-1-app"), "500Mi", getStorageLabels("backend-1", "nodejs", "app"))
+	mountMap["data-1"] = pvc2
+
+	pvc3 := testingutil.FakePVC(generatePVCNameFromStorageName("backend-2-app"), "100Mi", getStorageLabels("backend-2", "nodejs", "app"))
+	mountMap["data-2"] = pvc3
+
+	type args struct {
+		storageList       StorageList
+		componentName     string
+		applicationName   string
+		isComponentExists bool
+	}
+	tests := []struct {
+		name             string
+		args             args
+		componentType    string
+		returnedPVCs     corev1.PersistentVolumeClaimList
+		dcMountedMap     map[string]*corev1.PersistentVolumeClaim
+		storageToMount   map[string]*corev1.PersistentVolumeClaim
+		storageToUnMount map[string]string
+		wantErr          bool
+	}{
+		{
+			name: "case 1: component does not exist, no pvc on cluster and two on config",
+			args: args{
+				storageList: StorageList{
+					Items: []Storage{
+						GetMachineReadableFormat("backend", "100Mi", "data"),
+						GetMachineReadableFormat("backend-1", "500Mi", "data-1"),
+					},
+				},
+				componentName:     "nodejs",
+				applicationName:   "app",
+				isComponentExists: false,
+			},
+			returnedPVCs: corev1.PersistentVolumeClaimList{Items: []corev1.PersistentVolumeClaim{}},
+			dcMountedMap: map[string]*corev1.PersistentVolumeClaim{},
+			storageToMount: map[string]*corev1.PersistentVolumeClaim{
+				"data":   pvc1,
+				"data-1": pvc2,
+			},
+			storageToUnMount: map[string]string{},
+			wantErr:          false,
+		},
+		{
+			name: "case 2: component exists, two pvc on cluster and none on config",
+			args: args{
+				storageList:       StorageList{Items: []Storage{}},
+				componentName:     "nodejs",
+				applicationName:   "app",
+				isComponentExists: true,
+			},
+			returnedPVCs: corev1.PersistentVolumeClaimList{Items: []corev1.PersistentVolumeClaim{*pvc1, *pvc2}},
+			dcMountedMap: map[string]*corev1.PersistentVolumeClaim{
+				"data":   pvc1,
+				"data-1": pvc2,
+			},
+			storageToMount: map[string]*corev1.PersistentVolumeClaim{},
+			storageToUnMount: map[string]string{
+				"data":   getStorageFromPVC(pvc1),
+				"data-1": getStorageFromPVC(pvc2),
+			},
+			wantErr: false,
+		},
+		{
+			name: "case 3: component exists, three PVCs, two in config and cluster but one not in config",
+			args: args{
+				storageList: StorageList{
+					Items: []Storage{
+						GetMachineReadableFormat("backend", "100Mi", "data"),
+						GetMachineReadableFormat("backend-1", "500Mi", "data-1"),
+					},
+				},
+				componentName:     "nodejs",
+				applicationName:   "app",
+				isComponentExists: true,
+			},
+			returnedPVCs: corev1.PersistentVolumeClaimList{Items: []corev1.PersistentVolumeClaim{*pvc1, *pvc2, *pvc3}},
+			dcMountedMap: map[string]*corev1.PersistentVolumeClaim{
+				"data":   pvc1,
+				"data-1": pvc2,
+				"data-2": pvc3,
+			},
+			storageToMount: map[string]*corev1.PersistentVolumeClaim{},
+			storageToUnMount: map[string]string{
+				"data-2": getStorageFromPVC(pvc3),
+			},
+			wantErr: false,
+		},
+		{
+			name: "case 4: component exists, three PVCs, one in config and cluster, one not in cluster and one not in config",
+			args: args{
+				storageList: StorageList{Items: []Storage{
+					GetMachineReadableFormat("backend", "100Mi", "data"),
+					GetMachineReadableFormat("backend-1", "500Mi", "data-1"),
+				}},
+				componentName:     "nodejs",
+				applicationName:   "app",
+				isComponentExists: true,
+			},
+			returnedPVCs: corev1.PersistentVolumeClaimList{Items: []corev1.PersistentVolumeClaim{*pvc1, *pvc3}},
+			dcMountedMap: map[string]*corev1.PersistentVolumeClaim{
+				"data":   pvc1,
+				"data-2": pvc3,
+			},
+			storageToMount: map[string]*corev1.PersistentVolumeClaim{
+				"data-1": pvc2,
+			},
+			storageToUnMount: map[string]string{
+				"data-2": getStorageFromPVC(pvc3),
+			},
+			wantErr: false,
+		},
+		{
+			name: "case 5: component exists, two PVCs, both on cluster and config, but one with path config mismatch",
+			args: args{
+				storageList: StorageList{
+					Items: []Storage{
+						GetMachineReadableFormat("backend", "100Mi", "data"),
+						GetMachineReadableFormat("backend-1", "500Mi", "data-100"),
+					},
+				},
+				componentName:     "nodejs",
+				applicationName:   "app",
+				isComponentExists: true,
+			},
+			returnedPVCs: corev1.PersistentVolumeClaimList{Items: []corev1.PersistentVolumeClaim{*pvc1, *pvc2}},
+			dcMountedMap: map[string]*corev1.PersistentVolumeClaim{
+				"data":   pvc1,
+				"data-1": pvc2,
+			},
+			storageToMount:   map[string]*corev1.PersistentVolumeClaim{},
+			storageToUnMount: map[string]string{},
+			wantErr:          true,
+		},
+		{
+			name: "case 6: component exists, two PVCs, both on cluster and config, but one with size config mismatch",
+			args: args{
+				storageList: StorageList{
+					Items: []Storage{
+						GetMachineReadableFormat("backend", "100Mi", "data"),
+						GetMachineReadableFormat("backend-1", "50Mi", "data-1"),
+					},
+				},
+				componentName:     "nodejs",
+				applicationName:   "app",
+				isComponentExists: true,
+			},
+			returnedPVCs: corev1.PersistentVolumeClaimList{Items: []corev1.PersistentVolumeClaim{*pvc1, *pvc2}},
+			dcMountedMap: map[string]*corev1.PersistentVolumeClaim{
+				"data":   pvc1,
+				"data-1": pvc2,
+			},
+			storageToMount:   map[string]*corev1.PersistentVolumeClaim{},
+			storageToUnMount: map[string]string{},
+			wantErr:          true,
+		},
+		{
+			name: "case 7: component exists, one pvc on config and cluster",
+			args: args{
+				storageList:       StorageList{Items: []Storage{}},
+				componentName:     "nodejs",
+				applicationName:   "app",
+				isComponentExists: true,
+			},
+			returnedPVCs:     corev1.PersistentVolumeClaimList{Items: []corev1.PersistentVolumeClaim{}},
+			dcMountedMap:     map[string]*corev1.PersistentVolumeClaim{},
+			storageToMount:   map[string]*corev1.PersistentVolumeClaim{},
+			storageToUnMount: map[string]string{},
+			wantErr:          false,
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			fakeClient, fakeClientSet := occlient.FakeNew()
+
+			dcTesting := testingutil.OneFakeDeploymentConfigWithMounts(tt.args.componentName, tt.componentType, tt.args.applicationName, tt.dcMountedMap)
+
+			fakeClientSet.AppsClientset.PrependReactor("list", "deploymentconfigs", func(action ktesting.Action) (bool, runtime.Object, error) {
+				return true, &v1.DeploymentConfigList{
+					Items: []v1.DeploymentConfig{
+						*dcTesting,
+					},
+				}, nil
+			})
+
+			fakeClientSet.Kubernetes.PrependReactor("list", "persistentvolumeclaims", func(action ktesting.Action) (bool, runtime.Object, error) {
+				return true, &tt.returnedPVCs, nil
+			})
+
+			fakeClientSet.Kubernetes.PrependReactor("delete", "persistentvolumeclaims", func(action ktesting.Action) (bool, runtime.Object, error) {
+				for _, storageName := range tt.storageToUnMount {
+					namespacedOpenShiftObject, err := util.NamespaceOpenShiftObject(storageName, tt.args.applicationName)
+					if err != nil {
+						return false, nil, nil
+					}
+					if generatePVCNameFromStorageName(namespacedOpenShiftObject) == action.(ktesting.DeleteAction).GetName() {
+						return true, nil, nil
+					}
+				}
+				return false, nil, nil
+			})
+
+			storageToMount, storageToUnmount, err := Push(fakeClient, tt.args.storageList, tt.args.componentName, tt.args.applicationName, tt.args.isComponentExists)
+
+			if err == nil && !tt.wantErr {
+				// check if the len of the storageToMount values are the same as the required ones
+				if len(storageToMount) != len(tt.storageToMount) {
+					t.Errorf("storageToMount value mismatch, expected: %v, got: %v", len(tt.storageToMount), len(storageToMount))
+				}
+
+				// check if the PVCs are created with the required specs and will be mounted to the required path
+				var createdPVCs []*corev1.PersistentVolumeClaim
+				for _, action := range fakeClientSet.Kubernetes.Actions() {
+					if _, ok := action.(ktesting.CreateAction); !ok {
+						continue
+					}
+					createdPVCs = append(createdPVCs, action.(ktesting.CreateAction).GetObject().(*corev1.PersistentVolumeClaim))
+				}
+
+				for _, pvc := range storageToMount {
+					found := false
+					for _, createdPVC := range createdPVCs {
+						if pvc.Name == createdPVC.Name {
+							found = true
+							createdPVCSize := createdPVC.Spec.Resources.Requests[corev1.ResourceStorage]
+							pvcSize := pvc.Spec.Resources.Requests[corev1.ResourceStorage]
+							if pvcSize.String() != createdPVCSize.String() {
+								t.Errorf("pvc with name %v created with wrong size, expected: %v, got %v", pvc.Name, pvcSize, createdPVCSize)
+							}
+						}
+					}
+
+					if !found {
+						t.Errorf("pvc with name %v not created", pvc.Name)
+					}
+
+				}
+
+				for pathResult, pvcResult := range storageToMount {
+					for path, pvc := range tt.storageToMount {
+						if pvc.Name == pvcResult.Name {
+							if path != pathResult {
+								t.Errorf("pvc mounted to wrong path, expected: %v, got: %v", path, pathResult)
+							}
+						}
+					}
+				}
+
+				// check if the storageToUnMounted values match the required ones
+				if !reflect.DeepEqual(storageToUnmount, tt.storageToUnMount) {
+					t.Errorf("storageToUnmount is different, expected: %v, got: %v", tt.storageToUnMount, storageToUnmount)
+				}
+
+			} else if err == nil && tt.wantErr {
+				t.Error("test failed, expected: false, got true")
+			} else if err != nil && !tt.wantErr {
+				t.Errorf("test failed, expected: no error, got error: %s", err.Error())
+			}
+		})
+
+	}
+}

pkg/testingutil/deploymentconfigs.go

@@ -2,6 +2,7 @@ package testingutil
 
 import (
 	"fmt"
+	"github.com/openshift/odo/pkg/util"
 
 	v1 "github.com/openshift/api/apps/v1"
 	corev1 "k8s.io/api/core/v1"
@@ -155,3 +156,69 @@ func FakeDeploymentConfigs() *v1.DeploymentConfigList {
 		},
 	}
 }
+
+// mountedStorage is the map of the storage to be mounted
+// key is the path for the mount, value is the pvc
+func OneFakeDeploymentConfigWithMounts(componentName, componentType, applicationName string, mountedStorage map[string]*corev1.PersistentVolumeClaim) *v1.DeploymentConfig {
+	c := getContainer(componentName, applicationName, []corev1.ContainerPort{
+		{
+			Name:          fmt.Sprintf("%v-%v-p1", componentName, applicationName),
+			ContainerPort: 8080,
+			Protocol:      corev1.ProtocolTCP,
+		},
+		{
+			Name:          fmt.Sprintf("%v-%v-p2", componentName, applicationName),
+			ContainerPort: 9090,
+			Protocol:      corev1.ProtocolUDP,
+		},
+	}, nil)
+
+	dc := getDeploymentConfig("myproject", componentName, componentType, applicationName, []corev1.Container{c})
+
+	supervisorDPVC := FakePVC(getAppRootVolumeName(dc.Name), "1Gi", nil)
+
+	for path, pvc := range mountedStorage {
+		volumeName := generateVolumeNameFromPVC(pvc.Name)
+		dc.Spec.Template.Spec.Volumes = append(dc.Spec.Template.Spec.Volumes, corev1.Volume{
+			Name: volumeName,
+			VolumeSource: corev1.VolumeSource{
+				PersistentVolumeClaim: &corev1.PersistentVolumeClaimVolumeSource{
+					ClaimName: pvc.Name,
+				},
+			},
+		})
+		dc.Spec.Template.Spec.Containers[0].VolumeMounts = append(dc.Spec.Template.Spec.Containers[0].VolumeMounts, corev1.VolumeMount{
+			Name:      volumeName,
+			MountPath: path,
+		})
+	}
+
+	// now append the supervisorD volume
+	dc.Spec.Template.Spec.Volumes = append(dc.Spec.Template.Spec.Volumes, corev1.Volume{
+		Name: getAppRootVolumeName(dc.Name),
+		VolumeSource: corev1.VolumeSource{
+			PersistentVolumeClaim: &corev1.PersistentVolumeClaimVolumeSource{
+				ClaimName: supervisorDPVC.Name,
+			},
+		},
+	})
+
+	// now append the supervisorD volume mount
+	dc.Spec.Template.Spec.Containers[0].VolumeMounts = append(dc.Spec.Template.Spec.Containers[0].VolumeMounts, corev1.VolumeMount{
+		Name:      getAppRootVolumeName(dc.Name),
+		MountPath: "/opt/app-root",
+		SubPath:   "app-root",
+	})
+
+	return &dc
+}
+
+// generateVolumeNameFromPVC generates a random volume name based on the name
+// of the given PVC
+func generateVolumeNameFromPVC(pvc string) string {
+	return fmt.Sprintf("%v-%v-volume", pvc, util.GenerateRandomString(5))
+}
+
+func getAppRootVolumeName(dcName string) string {
+	return fmt.Sprintf("%s-s2idata", dcName)
+}

pkg/testingutil/pvcs.go

@@ -0,0 +1,29 @@
+package testingutil
+
+import (
+	"k8s.io/apimachinery/pkg/api/resource"
+
+	corev1 "k8s.io/api/core/v1"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+)
+
+func FakePVC(pvcName, size string, labels map[string]string) *corev1.PersistentVolumeClaim {
+	quantity, err := resource.ParseQuantity(size)
+	if err != nil {
+		return nil
+	}
+
+	return &corev1.PersistentVolumeClaim{
+		ObjectMeta: metav1.ObjectMeta{
+			Name:   pvcName,
+			Labels: labels,
+		},
+		Spec: corev1.PersistentVolumeClaimSpec{
+			Resources: corev1.ResourceRequirements{
+				Requests: corev1.ResourceList{
+					corev1.ResourceStorage: quantity,
+				},
+			},
+		},
+	}
+}

scripts/openshiftci-presubmit-e2e.sh

@@ -20,3 +20,4 @@ make test-cmp-e2e
 make test-cmp-sub-e2e
 make test-odo-config
 make test-watch-e2e
+make test-storage-e2e

tests/helper/helper_oc.go

@@ -271,3 +271,21 @@ func (oc *OcRunner) ServiceInstanceStatus(serviceInstanceName string) string {
 		"-o", "go-template='{{ (index .status.conditions 0).reason}}'")
 	return strings.TrimSpace(serviceinstance)
 }
+
+// GetVolumeMountName returns the name of the volume
+func (oc *OcRunner) GetVolumeMountName(dcName string) string {
+	volumeName := CmdShouldPass(oc.path, "get", "dc", dcName, "-o", "go-template='"+
+		"{{range .spec.template.spec.containers}}"+
+		"{{range .volumeMounts}}{{.name}}{{end}}{{end}}'")
+
+	return strings.TrimSpace(volumeName)
+}
+
+// GetVolumeMountPath returns the path of the volume mount
+func (oc *OcRunner) GetVolumeMountPath(dcName string) string {
+	volumePaths := CmdShouldPass(oc.path, "get", "dc", dcName, "-o", "go-template='"+
+		"{{range .spec.template.spec.containers}}"+
+		"{{range .volumeMounts}}{{.mountPath}} {{end}}{{end}}'")
+
+	return strings.TrimSpace(volumePaths)
+}

tests/integration/json_test.go

@@ -75,7 +75,7 @@ var _ = Describe("odojsonoutput", func() {
 
 			// odo storage list -o json
 			actualSrorageList := helper.CmdShouldPass("odo", "storage", "list", "-o", "json")
-			desiredSrorageList := `{"kind":"List","apiVersion":"odo.openshift.io/v1aplha1","metadata":{},"items":[{"kind":"Storage","apiVersion":"odo.openshift.io/v1alpha1","metadata":{"name":"mystorage","creationTimestamp":null},"spec":{"size":"1Gi"},"status":{"path":"/opt/app-root/src/storage/"}}]}`
+			desiredSrorageList := `{"kind":"List","apiVersion":"odo.openshift.io/v1alpha1","metadata":{},"items":[{"kind":"storage","apiVersion":"odo.openshift.io/v1alpha1","metadata":{"name":"mystorage","creationTimestamp":null},"spec":{"size":"1Gi"},"status":{"path":"/opt/app-root/src/storage/"}}]}`
 			Expect(desiredSrorageList).Should(MatchJSON(actualSrorageList))
 		})
 	})

tests/integration/storage_test.go

@@ -0,0 +1,73 @@
+package integration
+
+import (
+	"os"
+	"path/filepath"
+	"time"
+
+	//. "github.com/Benjamintf1/unmarshalledmatchers"
+	. "github.com/onsi/ginkgo"
+	. "github.com/onsi/gomega"
+	"github.com/openshift/odo/tests/helper"
+)
+
+var _ = Describe("odoStorageE2e", func() {
+	var project string
+	var context string
+
+	appName := "app"
+	cmpName := "nodejs"
+
+	// This is run after every Spec (It)
+	var _ = BeforeEach(func() {
+		SetDefaultEventuallyTimeout(10 * time.Minute)
+		project = helper.CreateRandProject()
+		context = helper.CreateNewContext()
+		oc = helper.NewOcRunner("oc")
+	})
+
+	// Clean up after the test
+	// This is run after every Spec (It)
+	var _ = AfterEach(func() {
+		helper.DeleteProject(project)
+		os.RemoveAll(".odo")
+	})
+
+	Context("Storage test", func() {
+
+		It("should add a storage, list and delete it", func() {
+			helper.CopyExample(filepath.Join("source", "nodejs"), context)
+			helper.Chdir(context)
+
+			helper.CmdShouldPass("odo", "component", "create", "nodejs", cmpName, "--app", appName, "--project", project)
+			storAdd := helper.CmdShouldPass("odo", "storage", "create", "pv1", "--path", "/mnt/pv1", "--size", "5Gi", "--context", context)
+			Expect(storAdd).To(ContainSubstring("nodejs"))
+			helper.CmdShouldPass("odo", "push")
+
+			dcName := oc.GetDcName(cmpName, project)
+
+			// Check against the volume name against dc
+			getDcVolumeMountName := oc.GetVolumeMountName(dcName)
+
+			Expect(getDcVolumeMountName).To(ContainSubstring("pv1"))
+
+			// Check if the storage is added on the path provided
+			getMntPath := oc.GetVolumeMountPath(dcName)
+			Expect(getMntPath).To(ContainSubstring("/mnt/pv1"))
+
+			storeList := helper.CmdShouldPass("odo", "storage", "list")
+			Expect(storeList).To(ContainSubstring("pv1"))
+
+			// delete the storage
+			helper.CmdShouldPass("odo", "storage", "delete", "pv1", "-f")
+
+			storeList = helper.CmdShouldPass("odo", "storage", "list")
+			Expect(storeList).NotTo(ContainSubstring("pv1"))
+			helper.CmdShouldPass("odo", "push")
+
+			getDcVolumeMountName = oc.GetVolumeMountName(dcName)
+			Expect(getDcVolumeMountName).NotTo(ContainSubstring("pv1"))
+		})
+	})
+
+})

tests/integration/watch_test.go

@@ -58,7 +58,6 @@ var _ = Describe("odoWatchE2e", func() {
 				output := helper.CmdShouldFail("odo", "watch")
 				Expect(output).To(ContainSubstring("component does not exist. Please use `odo push` to create you component"))
 			})
-
 		})
 	})