Fix #418 Added MySQL as DB storage layer. (#575)

* Fix #418 Added MySQL as DB storage layer.

* Make the mysql stuff work

* Make the mysql stuff work

* Make the mysql stuff work

* Make the mysql stuff work

* small fixes

* Switch to Go 1.8 installation inside CI (#589)

* Switch to Go 1.8 installation inside CI

Partially Addresses: #588

* Use url.Hostname() instead of custom method

* Added PR review changes.

* Added missing check for error.

* Changed * with name, config

* Removed unused import.

* Added check for NoRows

* Merged changes with HEAD

* Added documentation to mysql.go

* update mysql to be on par with postgres

api/datastore/datastore.go

@@ -6,6 +6,7 @@ import (
 
 	"github.com/Sirupsen/logrus"
 	"github.com/iron-io/functions/api/datastore/bolt"
+	"github.com/iron-io/functions/api/datastore/mysql"
 	"github.com/iron-io/functions/api/datastore/postgres"
 	"github.com/iron-io/functions/api/datastore/redis"
 	"github.com/iron-io/functions/api/models"
@@ -22,6 +23,8 @@ func New(dbURL string) (models.Datastore, error) {
 		return bolt.New(u)
 	case "postgres":
 		return postgres.New(u)
+	case "mysql":
+		return mysql.New(u)
 	case "redis":
 		return redis.New(u)
 	default:

api/datastore/internal/datastoretest/test.go

@@ -8,12 +8,13 @@ import (
 
 	"github.com/iron-io/functions/api/models"
 
+	"net/http"
+	"net/url"
+	"os"
+	"reflect"
+
 	"github.com/Sirupsen/logrus"
 	"github.com/gin-gonic/gin"
-	"reflect"
-	"net/http"
-	"os"
-	"net/url"
 )
 
 func setLogBuffer() *bytes.Buffer {
@@ -73,12 +74,12 @@ func Test(t *testing.T, ds models.Datastore) {
 		{
 			// Set a config var
 			updated, err := ds.UpdateApp(ctx,
-				&models.App{Name: testApp.Name, Config: map[string]string{"TEST":"1"}})
+				&models.App{Name: testApp.Name, Config: map[string]string{"TEST": "1"}})
 			if err != nil {
 				t.Log(buf.String())
 				t.Fatalf("Test UpdateApp: error when updating app: %v", err)
 			}
-			expected := &models.App{Name: testApp.Name, Config: map[string]string{"TEST":"1"}}
+			expected := &models.App{Name: testApp.Name, Config: map[string]string{"TEST": "1"}}
 			if !reflect.DeepEqual(*updated, *expected) {
 				t.Log(buf.String())
 				t.Fatalf("Test UpdateApp: expected updated `%v` but got `%v`", expected, updated)
@@ -86,12 +87,12 @@ func Test(t *testing.T, ds models.Datastore) {
 
 			// Set a different var (without clearing the existing)
 			updated, err = ds.UpdateApp(ctx,
-				&models.App{Name: testApp.Name, Config: map[string]string{"OTHER":"TEST"}})
+				&models.App{Name: testApp.Name, Config: map[string]string{"OTHER": "TEST"}})
 			if err != nil {
 				t.Log(buf.String())
 				t.Fatalf("Test UpdateApp: error when updating app: %v", err)
 			}
-			expected = &models.App{Name: testApp.Name, Config: map[string]string{"TEST":"1","OTHER":"TEST"}}
+			expected = &models.App{Name: testApp.Name, Config: map[string]string{"TEST": "1", "OTHER": "TEST"}}
 			if !reflect.DeepEqual(*updated, *expected) {
 				t.Log(buf.String())
 				t.Fatalf("Test UpdateApp: expected updated `%v` but got `%v`", expected, updated)
@@ -99,12 +100,12 @@ func Test(t *testing.T, ds models.Datastore) {
 
 			// Delete a var
 			updated, err = ds.UpdateApp(ctx,
-				&models.App{Name: testApp.Name, Config: map[string]string{"TEST":""}})
+				&models.App{Name: testApp.Name, Config: map[string]string{"TEST": ""}})
 			if err != nil {
 				t.Log(buf.String())
 				t.Fatalf("Test UpdateApp: error when updating app: %v", err)
 			}
-			expected = &models.App{Name: testApp.Name, Config: map[string]string{"OTHER":"TEST"}}
+			expected = &models.App{Name: testApp.Name, Config: map[string]string{"OTHER": "TEST"}}
 			if !reflect.DeepEqual(*updated, *expected) {
 				t.Log(buf.String())
 				t.Fatalf("Test UpdateApp: expected updated `%v` but got `%v`", expected, updated)
@@ -247,7 +248,6 @@ func Test(t *testing.T, ds models.Datastore) {
 			}
 		}
 
-
 		// Testing update
 		{
 			// Update some fields, and add 3 configs and 3 headers.

api/datastore/mysql/mysql.go

@@ -0,0 +1,621 @@
+package mysql
+
+import (
+	"bytes"
+	"context"
+	"database/sql"
+	"encoding/json"
+	"fmt"
+	"net/url"
+
+	"github.com/Sirupsen/logrus"
+	"github.com/go-sql-driver/mysql"
+	_ "github.com/go-sql-driver/mysql"
+	"github.com/iron-io/functions/api/datastore/internal/datastoreutil"
+	"github.com/iron-io/functions/api/models"
+)
+
+const routesTableCreate = `CREATE TABLE IF NOT EXISTS routes (
+	app_name varchar(256) NOT NULL,
+	path varchar(256) NOT NULL,
+	image varchar(256) NOT NULL,
+	format varchar(16) NOT NULL,
+	maxc int NOT NULL,
+	memory int NOT NULL,
+	timeout int NOT NULL,
+	type varchar(16) NOT NULL,
+	headers text NOT NULL,
+	config text NOT NULL,
+	PRIMARY KEY (app_name, path)
+);`
+
+const appsTableCreate = `CREATE TABLE IF NOT EXISTS apps (
+    name varchar(256) NOT NULL PRIMARY KEY,
+	config text NOT NULL
+);`
+
+const extrasTableCreate = `CREATE TABLE IF NOT EXISTS extras (
+    id varchar(256) NOT NULL PRIMARY KEY,
+	value varchar(256) NOT NULL
+);`
+
+const routeSelector = `SELECT app_name, path, image, format, maxc, memory, type, timeout, headers, config FROM routes`
+
+type rowScanner interface {
+	Scan(dest ...interface{}) error
+}
+
+type rowQuerier interface {
+	QueryRow(query string, args ...interface{}) *sql.Row
+}
+
+/*
+MySQLDatastore defines a basic MySQL Datastore struct.
+*/
+type MySQLDatastore struct {
+	db *sql.DB
+}
+
+/*
+New creates a new MySQL Datastore.
+*/
+func New(url *url.URL) (models.Datastore, error) {
+	u := fmt.Sprintf("%s@%s%s", url.User.String(), url.Host, url.Path)
+	db, err := sql.Open("mysql", u)
+	if err != nil {
+		return nil, err
+	}
+
+	err = db.Ping()
+	if err != nil {
+		return nil, err
+	}
+
+	maxIdleConns := 30
+	db.SetMaxIdleConns(maxIdleConns)
+	logrus.WithFields(logrus.Fields{"max_idle_connections": maxIdleConns}).Info("MySQL dialed")
+
+	pg := &MySQLDatastore{
+		db: db,
+	}
+
+	for _, v := range []string{routesTableCreate, appsTableCreate, extrasTableCreate} {
+		_, err = db.Exec(v)
+		if err != nil {
+			return nil, err
+		}
+	}
+
+	return datastoreutil.NewValidator(pg), nil
+}
+
+/*
+InsertApp inserts an app to MySQL.
+*/
+func (ds *MySQLDatastore) InsertApp(ctx context.Context, app *models.App) (*models.App, error) {
+	var cbyte []byte
+	var err error
+
+	if app.Config != nil {
+		cbyte, err = json.Marshal(app.Config)
+		if err != nil {
+			return nil, err
+		}
+	}
+	stmt, err := ds.db.Prepare("INSERT apps SET name=?,config=?")
+
+	if err != nil {
+		return nil, err
+	}
+
+	_, err = stmt.Exec(app.Name, string(cbyte))
+
+	if err != nil {
+		mysqlErr := err.(*mysql.MySQLError)
+		if mysqlErr.Number == 1062 {
+			return nil, models.ErrAppsAlreadyExists
+		}
+		return nil, err
+	}
+
+	return app, nil
+}
+
+/*
+UpdateApp updates an existing app on MySQL.
+*/
+func (ds *MySQLDatastore) UpdateApp(ctx context.Context, newapp *models.App) (*models.App, error) {
+	app := &models.App{Name: newapp.Name}
+	err := ds.Tx(func(tx *sql.Tx) error {
+		row := ds.db.QueryRow(`SELECT config FROM apps WHERE name=?`, app.Name)
+
+		var config string
+		if err := row.Scan(&config); err != nil {
+			if err == sql.ErrNoRows {
+				return models.ErrAppsNotFound
+			}
+			return err
+		}
+
+		if config != "" {
+			err := json.Unmarshal([]byte(config), &app.Config)
+			if err != nil {
+				return err
+			}
+		}
+
+		app.UpdateConfig(newapp.Config)
+
+		cbyte, err := json.Marshal(app.Config)
+		if err != nil {
+			return err
+		}
+
+		stmt, err := ds.db.Prepare(`UPDATE apps SET config=? WHERE name=?`)
+
+		if err != nil {
+			return err
+		}
+
+		res, err := stmt.Exec(string(cbyte), app.Name)
+
+		if err != nil {
+			return err
+		}
+
+		if n, err := res.RowsAffected(); err != nil {
+			return err
+		} else if n == 0 {
+			return models.ErrAppsNotFound
+		}
+		return nil
+	})
+
+	if err != nil {
+		return nil, err
+	}
+
+	return app, nil
+}
+
+/*
+RemoveApp removes an existing app on MySQL.
+*/
+func (ds *MySQLDatastore) RemoveApp(ctx context.Context, appName string) error {
+	_, err := ds.db.Exec(`
+	  DELETE FROM apps
+	  WHERE name = ?
+	`, appName)
+
+	if err != nil {
+		return err
+	}
+
+	return nil
+}
+
+/*
+GetApp retrieves an app from MySQL.
+*/
+func (ds *MySQLDatastore) GetApp(ctx context.Context, name string) (*models.App, error) {
+	row := ds.db.QueryRow(`SELECT name, config FROM apps WHERE name=?`, name)
+
+	var resName string
+	var config string
+	err := row.Scan(&resName, &config)
+
+	res := &models.App{
+		Name: resName,
+	}
+
+	json.Unmarshal([]byte(config), &res.Config)
+
+	if err != nil {
+		if err == sql.ErrNoRows {
+			return nil, models.ErrAppsNotFound
+		}
+		return nil, err
+	}
+
+	return res, nil
+}
+
+func scanApp(scanner rowScanner, app *models.App) error {
+	var configStr string
+
+	err := scanner.Scan(
+		&app.Name,
+		&configStr,
+	)
+
+	json.Unmarshal([]byte(configStr), &app.Config)
+
+	return err
+}
+
+/*
+GetApps retrieves an array of apps according to a specific filter.
+*/
+func (ds *MySQLDatastore) GetApps(ctx context.Context, filter *models.AppFilter) ([]*models.App, error) {
+	res := []*models.App{}
+	filterQuery, args := buildFilterAppQuery(filter)
+	rows, err := ds.db.Query(fmt.Sprintf("SELECT DISTINCT name, config FROM apps %s", filterQuery), args...)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+
+	for rows.Next() {
+		var app models.App
+		err := scanApp(rows, &app)
+
+		if err != nil {
+			break
+		}
+		res = append(res, &app)
+	}
+
+	if err := rows.Err(); err != nil {
+		return res, err
+	}
+	return res, nil
+}
+
+/*
+InsertRoute inserts an route to MySQL.
+*/
+func (ds *MySQLDatastore) InsertRoute(ctx context.Context, route *models.Route) (*models.Route, error) {
+	hbyte, err := json.Marshal(route.Headers)
+	if err != nil {
+		return nil, err
+	}
+
+	cbyte, err := json.Marshal(route.Config)
+	if err != nil {
+		return nil, err
+	}
+
+	err = ds.Tx(func(tx *sql.Tx) error {
+		r := tx.QueryRow(`SELECT 1 FROM apps WHERE name=?`, route.AppName)
+		if err := r.Scan(new(int)); err != nil {
+			if err == sql.ErrNoRows {
+				return models.ErrAppsNotFound
+			}
+		}
+		same, err := tx.Query(`SELECT 1 FROM routes WHERE app_name=? AND path=?`,
+			route.AppName, route.Path)
+		if err != nil {
+			return err
+		}
+		defer same.Close()
+		if same.Next() {
+			return models.ErrRoutesAlreadyExists
+		}
+
+		_, err = tx.Exec(`
+		INSERT INTO routes (
+			app_name,
+			path,
+			image,
+			format,
+			maxc,
+			memory,
+			type,
+			timeout,
+			headers,
+			config
+		)
+		VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?);`,
+			route.AppName,
+			route.Path,
+			route.Image,
+			route.Format,
+			route.MaxConcurrency,
+			route.Memory,
+			route.Type,
+			route.Timeout,
+			string(hbyte),
+			string(cbyte),
+		)
+		return err
+	})
+
+	if err != nil {
+		return nil, err
+	}
+	return route, nil
+}
+
+/*
+UpdateRoute updates an existing route on MySQL.
+*/
+func (ds *MySQLDatastore) UpdateRoute(ctx context.Context, newroute *models.Route) (*models.Route, error) {
+	var route models.Route
+	err := ds.Tx(func(tx *sql.Tx) error {
+		row := ds.db.QueryRow(fmt.Sprintf("%s WHERE app_name=? AND path=?", routeSelector), newroute.AppName, newroute.Path)
+		if err := scanRoute(row, &route); err == sql.ErrNoRows {
+			return models.ErrRoutesNotFound
+		} else if err != nil {
+			return err
+		}
+
+		route.Update(newroute)
+
+		hbyte, err := json.Marshal(route.Headers)
+		if err != nil {
+			return err
+		}
+
+		cbyte, err := json.Marshal(route.Config)
+		if err != nil {
+			return err
+		}
+
+		res, err := tx.Exec(`
+		UPDATE routes SET
+			image = ?,
+			format = ?,
+			maxc = ?,
+			memory = ?,
+			type = ?,
+			timeout = ?,
+			headers = ?,
+			config = ?
+		WHERE app_name = ? AND path = ?;`,
+			route.Image,
+			route.Format,
+			route.MaxConcurrency,
+			route.Memory,
+			route.Type,
+			route.Timeout,
+			string(hbyte),
+			string(cbyte),
+			route.AppName,
+			route.Path,
+		)
+
+		if err != nil {
+			return err
+		}
+
+		if n, err := res.RowsAffected(); err != nil {
+			return err
+		} else if n == 0 {
+			return models.ErrRoutesNotFound
+		}
+
+		return nil
+	})
+
+	if err != nil {
+		return nil, err
+	}
+	return &route, nil
+}
+
+/*
+RemoveRoute removes an existing route on MySQL.
+*/
+func (ds *MySQLDatastore) RemoveRoute(ctx context.Context, appName, routePath string) error {
+	res, err := ds.db.Exec(`
+		DELETE FROM routes
+		WHERE path = ? AND app_name = ?
+	`, routePath, appName)
+
+	if err != nil {
+		return err
+	}
+
+	n, err := res.RowsAffected()
+	if err != nil {
+		return err
+	}
+
+	if n == 0 {
+		return models.ErrRoutesRemoving
+	}
+
+	return nil
+}
+
+func scanRoute(scanner rowScanner, route *models.Route) error {
+	var headerStr string
+	var configStr string
+
+	err := scanner.Scan(
+		&route.AppName,
+		&route.Path,
+		&route.Image,
+		&route.Format,
+		&route.MaxConcurrency,
+		&route.Memory,
+		&route.Type,
+		&route.Timeout,
+		&headerStr,
+		&configStr,
+	)
+	if err != nil {
+		return err
+	}
+
+	if headerStr == "" {
+		return models.ErrRoutesNotFound
+	}
+
+	if err := json.Unmarshal([]byte(headerStr), &route.Headers); err != nil {
+		return err
+	}
+	return json.Unmarshal([]byte(configStr), &route.Config)
+}
+
+/*
+GetRoute retrieves a route from MySQL.
+*/
+func (ds *MySQLDatastore) GetRoute(ctx context.Context, appName, routePath string) (*models.Route, error) {
+	var route models.Route
+
+	row := ds.db.QueryRow(fmt.Sprintf("%s WHERE app_name=? AND path=?", routeSelector), appName, routePath)
+	err := scanRoute(row, &route)
+
+	if err == sql.ErrNoRows {
+		return nil, models.ErrRoutesNotFound
+	} else if err != nil {
+		return nil, err
+	}
+	return &route, nil
+}
+
+/*
+GetRoutes retrieves an array of routes according to a specific filter.
+*/
+func (ds *MySQLDatastore) GetRoutes(ctx context.Context, filter *models.RouteFilter) ([]*models.Route, error) {
+	res := []*models.Route{}
+	filterQuery, args := buildFilterRouteQuery(filter)
+	rows, err := ds.db.Query(fmt.Sprintf("%s %s", routeSelector, filterQuery), args...)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+
+	for rows.Next() {
+		var route models.Route
+		err := scanRoute(rows, &route)
+		if err != nil {
+			continue
+		}
+		res = append(res, &route)
+
+	}
+	if err := rows.Err(); err != nil {
+		return nil, err
+	}
+	return res, nil
+}
+
+/*
+GetRoutesByApp retrieves a route with a specific app name.
+*/
+func (ds *MySQLDatastore) GetRoutesByApp(ctx context.Context, appName string, filter *models.RouteFilter) ([]*models.Route, error) {
+	res := []*models.Route{}
+
+	var filterQuery string
+	var args []interface{}
+	if filter == nil {
+		filterQuery = "WHERE app_name = ?"
+		args = []interface{}{appName}
+	} else {
+		filter.AppName = appName
+		filterQuery, args = buildFilterRouteQuery(filter)
+	}
+	rows, err := ds.db.Query(fmt.Sprintf("%s %s", routeSelector, filterQuery), args...)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+
+	for rows.Next() {
+		var route models.Route
+		err := scanRoute(rows, &route)
+		if err != nil {
+			continue
+		}
+		res = append(res, &route)
+
+	}
+	if err := rows.Err(); err != nil {
+		return nil, err
+	}
+
+	return res, nil
+}
+
+func buildFilterAppQuery(filter *models.AppFilter) (string, []interface{}) {
+	if filter == nil {
+		return "", nil
+	}
+
+	if filter.Name != "" {
+		return "WHERE name LIKE ?", []interface{}{filter.Name}
+	}
+
+	return "", nil
+}
+
+func buildFilterRouteQuery(filter *models.RouteFilter) (string, []interface{}) {
+	if filter == nil {
+		return "", nil
+	}
+	var b bytes.Buffer
+	var args []interface{}
+
+	where := func(colOp, val string) {
+		if val != "" {
+			args = append(args, val)
+			if len(args) == 1 {
+				fmt.Fprintf(&b, "WHERE %s ?", colOp)
+			} else {
+				fmt.Fprintf(&b, " AND %s ?", colOp)
+			}
+		}
+	}
+
+	where("path =", filter.Path)
+	where("app_name =", filter.AppName)
+	where("image =", filter.Image)
+
+	return b.String(), args
+}
+
+/*
+Put inserts an extra into MySQL.
+*/
+func (ds *MySQLDatastore) Put(ctx context.Context, key, value []byte) error {
+	_, err := ds.db.Exec(`
+	    INSERT INTO extras (
+			id,
+			value
+		)
+		VALUES (?, ?)
+		ON DUPLICATE KEY UPDATE
+			value = ?
+		`, string(key), string(value), string(value))
+
+	if err != nil {
+		return err
+	}
+
+	return nil
+}
+
+/*
+Get retrieves the value of a specific extra from MySQL.
+*/
+func (ds *MySQLDatastore) Get(ctx context.Context, key []byte) ([]byte, error) {
+	row := ds.db.QueryRow("SELECT value FROM extras WHERE id=?", key)
+
+	var value string
+	err := row.Scan(&value)
+	if err == sql.ErrNoRows {
+		return nil, nil
+	} else if err != nil {
+		return nil, err
+	}
+
+	return []byte(value), nil
+}
+
+/*
+Tx Begins and commits a MySQL Transaction.
+*/
+func (ds *MySQLDatastore) Tx(f func(*sql.Tx) error) error {
+	tx, err := ds.db.Begin()
+	if err != nil {
+		return err
+	}
+	err = f(tx)
+	if err != nil {
+		tx.Rollback()
+		return err
+	}
+	return tx.Commit()
+}

api/datastore/mysql/mysql_test.go

@@ -0,0 +1,112 @@
+package mysql
+
+import (
+	"bytes"
+	"database/sql"
+	"fmt"
+	"net/url"
+	"os/exec"
+	"testing"
+	"time"
+
+	"github.com/iron-io/functions/api/datastore/internal/datastoretest"
+)
+
+const tmpMysql = "mysql://root:root@tcp(%v:3307)/funcs"
+
+func prepareMysqlTest(logf, fatalf func(string, ...interface{})) (func(), func()) {
+	fmt.Println("initializing mysql for test")
+	tryRun(logf, "remove old mysql container", exec.Command("docker", "rm", "-f", "iron-mysql-test"))
+	mustRun(fatalf, "start mysql container", exec.Command(
+		"docker", "run", "--name", "iron-mysql-test", "-p", "3307:3306", "-e", "MYSQL_DATABASE=funcs",
+		"-e", "MYSQL_ROOT_PASSWORD=root", "-d", "mysql"))
+	maxWait := 16 * time.Second
+	wait := 2 * time.Second
+	var db *sql.DB
+	var err error
+	for {
+		db, err = sql.Open("mysql", fmt.Sprintf("root:root@tcp(%v:3307)/",
+			datastoretest.GetContainerHostIP()))
+		if err != nil {
+			if wait > maxWait {
+				fatalf("failed to connect to mysql after %d seconds", maxWait)
+				break
+			}
+			fmt.Println("failed to connect to mysql:", err)
+			fmt.Println("retrying in:", wait)
+			time.Sleep(wait)
+			continue
+		}
+		// Ping
+		if _, err = db.Exec("SELECT 1"); err != nil {
+			fmt.Println("failed to ping database:", err)
+			time.Sleep(wait)
+			continue
+		}
+		break
+	}
+
+	_, err = db.Exec("DROP DATABASE IF EXISTS funcs;")
+	if err != nil {
+		fmt.Println("failed to drop database:", err)
+	}
+	_, err = db.Exec("CREATE DATABASE funcs;")
+	if err != nil {
+		fatalf("failed to create database: %s\n", err)
+	}
+	_, err = db.Exec(`GRANT ALL PRIVILEGES ON funcs.* TO root@localhost WITH GRANT OPTION;`)
+	if err != nil {
+		fatalf("failed to grant priviledges to user 'mysql: %s\n", err)
+		panic(err)
+	}
+
+	fmt.Println("mysql for test ready")
+	return func() {
+			db, err := sql.Open("mysql", fmt.Sprintf("root:root@tcp(%v:3307)/",
+				datastoretest.GetContainerHostIP()))
+			if err != nil {
+				fatalf("failed to connect for truncation: %s\n", err)
+			}
+			for _, table := range []string{"routes", "apps", "extras"} {
+				_, err = db.Exec(`TRUNCATE TABLE ` + table)
+				if err != nil {
+					fatalf("failed to truncate table %q: %s\n", table, err)
+				}
+			}
+		},
+		func() {
+			tryRun(logf, "stop mysql container", exec.Command("docker", "rm", "-f", "iron-mysql-test"))
+		}
+}
+
+func TestDatastore(t *testing.T) {
+	_, close := prepareMysqlTest(t.Logf, t.Fatalf)
+	defer close()
+
+	u, err := url.Parse(fmt.Sprintf(tmpMysql, datastoretest.GetContainerHostIP()))
+	if err != nil {
+		t.Fatalf("failed to parse url: %s\n", err)
+	}
+	ds, err := New(u)
+	if err != nil {
+		t.Fatalf("failed to create mysql datastore: %s\n", err)
+	}
+
+	datastoretest.Test(t, ds)
+}
+
+func tryRun(logf func(string, ...interface{}), desc string, cmd *exec.Cmd) {
+	var b bytes.Buffer
+	cmd.Stderr = &b
+	if err := cmd.Run(); err != nil {
+		logf("failed to %s: %s", desc, b.String())
+	}
+}
+
+func mustRun(fatalf func(string, ...interface{}), desc string, cmd *exec.Cmd) {
+	var b bytes.Buffer
+	cmd.Stderr = &b
+	if err := cmd.Run(); err != nil {
+		fatalf("failed to %s: %s", desc, b.String())
+	}
+}

glide.lock

@@ -1,5 +1,5 @@
-hash: 01f9cff01b9ee5c1d8c37c86779ab6bbd91278394e526f921f399f10a0523698
+hash: c1cb358ca30836b70eedffdf0132cf9b9d0da981dbb9d58fc2f75eabe91de429
-updated: 2017-02-21T08:50:25.925523311-08:00
+updated: 2017-03-11T12:22:28.171415703+01:00
 imports:
 - name: github.com/amir/raidman
   version: c74861fe6a7bb8ede0a010ce4485bdbb4fc4c985
@@ -107,7 +107,7 @@ imports:
 - name: github.com/fsnotify/fsnotify
   version: fd9ec7deca8bf46ecd2a795baaacf2b3a9be1197
 - name: github.com/fsouza/go-dockerclient
-  version: 364c822d280c4f34afc3339e50d4fc0129d6b5ec
+  version: fbeb72ccd29aa2596f364a5a85af622c651c3e16
 - name: github.com/garyburd/redigo
   version: 0708def8b0cf3a05acdf44a7f28b864c2958921d
   subpackages:
@@ -151,6 +151,8 @@ imports:
   version: 027696d4b54399770f1cdcc6c6daa56975f9e14e
 - name: github.com/go-resty/resty
   version: ef723efa2a1b4fcdbafb5b1e7c6cf42065519728
+- name: github.com/go-sql-driver/mysql
+  version: a0583e0143b1624142adab07e0e97fe106d99561
 - name: github.com/golang/groupcache
   version: 72d04f9fcdec7d3821820cc4a6f150eae553639a
   subpackages:
@@ -184,7 +186,7 @@ imports:
   - json/scanner
   - json/token
 - name: github.com/heroku/docker-registry-client
-  version: 95467b6cacee2a06f112a3cf7e47a70fad6000cf
+  version: 36bd5f538a6b9e70f2d863c9a8f6bf955a98eddc
   subpackages:
   - registry
 - name: github.com/iron-io/functions_go
@@ -263,7 +265,7 @@ imports:
 - name: github.com/satori/go.uuid
   version: 879c5887cd475cd7864858769793b2ceb0d44feb
 - name: github.com/Sirupsen/logrus
-  version: c078b1e43f58d563c74cebe63c85789e76ddb627
+  version: 0208149b40d863d2c1a2f8fe5753096a9cf2cc8b
   subpackages:
   - hooks/syslog
 - name: github.com/spf13/afero

glide.yaml

@@ -36,3 +36,5 @@ import:
 - package: github.com/golang/groupcache
   subpackages:
   - consistenthash
+- package: github.com/go-sql-driver/mysql
+  version: ~1.3.0