Move from github.com/feloy/devfile-builder (#6937)

* Move from github.com/feloy/devfile-builder

* Update .github/workflows/ui-e2e.yaml

Co-authored-by: Armel Soro <armel@rm3l.org>

---------

Co-authored-by: Armel Soro <armel@rm3l.org>

.github/workflows/ui-e2e.yaml

@@ -0,0 +1,21 @@
+name: Dev UI E2E tests
+on:
+  pull_request:
+    branches:    
+      - main
+    paths:
+      - 'ui'
+      - '.github/workflows/ui-e2e.yaml'
+
+jobs:
+  cypress-run:
+    runs-on: ubuntu-22.04
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+      - name: Cypress run
+        uses: cypress-io/github-action@v5
+        with:
+          working-directory: ui
+          start: npm start
+          wait-on: 'npx wait-on --timeout 180000 http://0.0.0.0:4200'

.ibm/pipelines/functions.sh

@@ -59,7 +59,7 @@ skip_if_only() {
 }
 
 skip() {
-    SKIP_IF_ONLY="docs/ CONTRIBUTING.md OWNERS README.md USAGE_DATA.md scripts/ .github/ .threatmodel/"
+    SKIP_IF_ONLY="docs/ CONTRIBUTING.md OWNERS README.md USAGE_DATA.md scripts/ .github/ .threatmodel/ ui/"
     change=$1
     for skip in ${SKIP_IF_ONLY}; do
         if [[ "${change}" == "${skip}"* ]]; then

scripts/check-gofmt.sh

@@ -4,7 +4,7 @@
 # - ignore files in certain directories, like 'vendor' or 'dist' (created when building RPM Packages of odo)
 # - gofmt doesn't exit with error code when there are errors
 
-GO_FILES=$(find . \( -path ./vendor -o -path ./dist -o -path ./.ibm/tools/tests-results/vendor \) -prune -o -name '*.go' -print)
+GO_FILES=$(find . \( -path ./vendor -o -path ./dist -o -path ./.ibm/tools/tests-results/vendor -o -path ./ui/wasm/vendor \) -prune -o -name '*.go' -print)
 
 for file in $GO_FILES; do
 	gofmtOutput=$(gofmt -l "$file")

ui/.gitignore

@@ -0,0 +1,46 @@
+# See http://help.github.com/ignore-files/ for more about ignoring files.
+
+# Compiled output
+/dist
+/tmp
+/out-tsc
+/bazel-out
+
+# Node
+/node_modules
+npm-debug.log
+yarn-error.log
+
+# IDEs and editors
+.idea/
+.project
+.classpath
+.c9/
+*.launch
+.settings/
+*.sublime-workspace
+
+# Visual Studio Code
+.vscode/*
+!.vscode/settings.json
+!.vscode/tasks.json
+!.vscode/launch.json
+!.vscode/extensions.json
+.history/*
+
+# Miscellaneous
+/.angular/cache
+.sass-cache/
+/connect.lock
+/coverage
+/libpeerconnection.log
+testem.log
+/typings
+
+# System files
+.DS_Store
+Thumbs.db
+
+/cypress/videos
+
+.odo

ui/Makefile

@@ -0,0 +1,12 @@
+build-wasm:
+	( \
+		cd wasm/ && \
+		GOOS=js GOARCH=wasm go build -o ../src/assets/devfile.wasm && \
+		HASH=$$(md5sum ../src/assets/devfile.wasm | awk '{ print $$1 }') && \
+		echo $${HASH} && \
+		mv ../src/assets/devfile.wasm ../src/assets/devfile.$${HASH}.wasm && \
+		sed -i "s/devfile\.[a-z0-9]*\.wasm/devfile\.$${HASH}.wasm/" ../src/app/app.module.ts \
+	)
+
+deploy:
+	npm run deploy

ui/README.md

@@ -0,0 +1,36 @@
+# Devfile Builder
+
+Devfile Builder is a tool to help users edit and create Devfile (https://devfile.io).
+
+## Development with Devfile
+
+Run `odo dev --platform podman` from this directory to start a development session.
+
+## Development (generic, from Angular documentation)
+
+This project was generated with [Angular CLI](https://github.com/angular/angular-cli) version 15.2.2.
+
+### Development server
+
+Run `ng serve` for a dev server. Navigate to `http://localhost:4200/`. The application will automatically reload if you change any of the source files.
+
+### Code scaffolding
+
+Run `ng generate component component-name` to generate a new component. You can also use `ng generate directive|pipe|service|class|guard|interface|enum|module`.
+
+### Build
+
+Run `ng build` to build the project. The build artifacts will be stored in the `dist/` directory.
+
+### Running unit tests
+
+Run `ng test` to execute the unit tests via [Karma](https://karma-runner.github.io).
+
+### Running end-to-end tests
+
+Run `ng e2e` to execute the end-to-end tests via a platform of your choice. To use this command, you need to first add a package that implements end-to-end testing capabilities.
+
+### Further help
+
+To get more help on the Angular CLI use `ng help` or go check out the [Angular CLI Overview and Command Reference](https://angular.io/cli) page.
+

ui/angular.json

@@ -0,0 +1,106 @@
+{
+  "$schema": "./node_modules/@angular/cli/lib/config/schema.json",
+  "version": 1,
+  "newProjectRoot": "projects",
+  "projects": {
+    "devfile-builder": {
+      "projectType": "application",
+      "schematics": {},
+      "root": "",
+      "sourceRoot": "src",
+      "prefix": "app",
+      "architect": {
+        "build": {
+          "builder": "@angular-devkit/build-angular:browser",
+          "options": {
+            "outputPath": "dist/devfile-builder",
+            "index": "src/index.html",
+            "main": "src/main.ts",
+            "polyfills": [
+              "zone.js"
+            ],
+            "tsConfig": "tsconfig.app.json",
+            "assets": [
+              "src/favicon.ico",
+              "src/CNAME",
+              "src/assets"
+            ],
+            "styles": [
+              "@angular/material/prebuilt-themes/indigo-pink.css",
+              "src/styles.css"
+            ],
+            "scripts": [
+              "src/assets/wasm_exec.js"
+            ]
+          },
+          "configurations": {
+            "production": {
+              "budgets": [
+                {
+                  "type": "initial",
+                  "maximumWarning": "1500kb",
+                  "maximumError": "2mb"
+                },
+                {
+                  "type": "anyComponentStyle",
+                  "maximumWarning": "2kb",
+                  "maximumError": "4kb"
+                }
+              ],
+              "outputHashing": "all"
+            },
+            "development": {
+              "buildOptimizer": false,
+              "optimization": false,
+              "vendorChunk": true,
+              "extractLicenses": false,
+              "sourceMap": true,
+              "namedChunks": true
+            }
+          },
+          "defaultConfiguration": "production"
+        },
+        "serve": {
+          "builder": "@angular-devkit/build-angular:dev-server",
+          "configurations": {
+            "production": {
+              "browserTarget": "devfile-builder:build:production"
+            },
+            "development": {
+              "browserTarget": "devfile-builder:build:development"
+            }
+          },
+          "defaultConfiguration": "development"
+        },
+        "extract-i18n": {
+          "builder": "@angular-devkit/build-angular:extract-i18n",
+          "options": {
+            "browserTarget": "devfile-builder:build"
+          }
+        },
+        "test": {
+          "builder": "@angular-devkit/build-angular:karma",
+          "options": {
+            "polyfills": [
+              "zone.js",
+              "zone.js/testing"
+            ],
+            "tsConfig": "tsconfig.spec.json",
+            "assets": [
+              "src/favicon.ico",
+              "src/assets"
+            ],
+            "styles": [
+              "@angular/material/prebuilt-themes/indigo-pink.css",
+              "src/styles.css"
+            ],
+            "scripts": []
+          }
+        },
+        "deploy": {
+          "builder": "angular-cli-ghpages:deploy"
+        }
+      }
+    }
+  }
+}

ui/cypress.config.ts

@@ -0,0 +1,11 @@
+import { defineConfig } from "cypress";
+
+export default defineConfig({
+  e2e: {
+    setupNodeEvents(on, config) {
+      // implement node event listeners here
+    },
+  },
+  viewportWidth: 1080,
+  viewportHeight: 660,
+});

ui/cypress/e2e/consts.ts

@@ -0,0 +1,8 @@
+export const TAB_YAML = 0;
+export const TAB_CHART = 1;
+export const TAB_METADATA = 2;
+export const TAB_COMMANDS = 3;
+export const TAB_VOLUMES = 4;
+export const TAB_CONTAINERS = 5;
+export const TAB_IMAGES = 6;
+export const TAB_RESOURCES = 7;

ui/cypress/e2e/errs.cy.ts

@@ -0,0 +1,133 @@
+import { TAB_COMMANDS, TAB_CONTAINERS, TAB_IMAGES, TAB_RESOURCES } from "./consts";
+
+describe('devfile editor errors handling', () => {
+
+    it('fails when YAML is not valid', () => {
+        cy.visit('http://localhost:4200');
+        cy.clearDevfile();
+        cy.setDevfile("wrong yaml content");
+        cy.getByDataCy("yaml-error").should('contain.text', 'error parsing devfile YAML');
+      });
+
+    it('fails when adding a container with an already used name', () => {
+        cy.visit('http://localhost:4200');
+        cy.clearDevfile();
+        cy.fixture('input/with-container.yaml').then(yaml => {
+            cy.setDevfile(yaml);
+        });
+        cy.selectTab(TAB_CONTAINERS);
+        cy.getByDataCy('add').click();
+        cy.getByDataCy('container-name').type('container1');
+        cy.getByDataCy('container-image').type('an-image');
+        cy.getByDataCy('container-create').click();
+        cy.on('window:alert', (str) => {
+            expect(str).to.contain(`container1 already exists`)
+        });
+    });
+
+    it('fails when adding an image with an already used name', () => {
+        cy.visit('http://localhost:4200');
+        cy.clearDevfile();
+        cy.fixture('input/with-container.yaml').then(yaml => {
+            cy.setDevfile(yaml);
+        });
+        cy.selectTab(TAB_IMAGES);
+        cy.getByDataCy('image-name').type('container1');
+        cy.getByDataCy('image-image-name').type('an-image-name');
+        cy.getByDataCy('image-build-context').type('/path/to/build/context');
+        cy.getByDataCy('image-dockerfile-uri').type('/path/to/dockerfile');
+        cy.getByDataCy('image-create').click();
+        cy.on('window:alert', (str) => {
+            expect(str).to.contain(`container1 already exists`)
+        });
+    });
+
+    it('fails when adding a resource with an already used name', () => {
+        cy.visit('http://localhost:4200');
+        cy.clearDevfile();
+        cy.fixture('input/with-container.yaml').then(yaml => {
+            cy.setDevfile(yaml);
+        });
+        cy.selectTab(TAB_RESOURCES);
+        cy.getByDataCy('resource-name').type('container1');
+        cy.getByDataCy('resource-toggle-inlined').click();
+        cy.getByDataCy('resource-manifest').type('a-resource-manifest');
+        cy.getByDataCy('resource-create').click();
+        cy.on('window:alert', (str) => {
+            expect(str).to.contain(`container1 already exists`)
+        });
+    });
+
+    it('fails when adding an exec command with an already used name', () => {
+        cy.visit('http://localhost:4200');
+        cy.clearDevfile();
+        cy.fixture('input/with-exec-command.yaml').then(yaml => {
+            cy.setDevfile(yaml);
+        });
+        cy.selectTab(TAB_COMMANDS);
+        cy.getByDataCy('add').click();
+        cy.getByDataCy('new-command-exec').click();
+    
+        cy.getByDataCy('command-exec-name').type('command1');
+        cy.getByDataCy('command-exec-command-line').type('a-cmdline');
+        cy.getByDataCy('command-exec-working-dir').type('/path/to/working/dir');
+        cy.getByDataCy('select-container').click().get('mat-option').contains('container1').click();
+        cy.getByDataCy('command-exec-create').click();
+        cy.on('window:alert', (str) => {
+            expect(str).to.contain(`command1 already exists`)
+        });
+    });
+
+    it('fails when adding an apply command with an already used name', () => {
+        cy.visit('http://localhost:4200');
+        cy.clearDevfile();
+        cy.fixture('input/with-apply-command.yaml').then(yaml => {
+            cy.setDevfile(yaml);
+        });
+        cy.selectTab(TAB_COMMANDS);
+        cy.getByDataCy('add').click();
+        cy.getByDataCy('new-command-apply').click();
+    
+        cy.getByDataCy('command-apply-name').type('command1');
+        cy.getByDataCy('select-container').click().get('mat-option').contains('resource1').click();
+        cy.getByDataCy('command-apply-create').click();
+        cy.on('window:alert', (str) => {
+            expect(str).to.contain(`command1 already exists`)
+        });
+    });
+
+    it('fails when adding an image command with an already used name', () => {
+        cy.visit('http://localhost:4200');
+        cy.clearDevfile();
+        cy.fixture('input/with-image-command.yaml').then(yaml => {
+            cy.setDevfile(yaml);
+        });
+        cy.selectTab(TAB_COMMANDS);
+        cy.getByDataCy('add').click();
+        cy.getByDataCy('new-command-image').click();
+    
+        cy.getByDataCy('command-image-name').type('command1');
+        cy.getByDataCy('select-container').click().get('mat-option').contains('image1').click();
+        cy.getByDataCy('command-image-create').click();
+        cy.on('window:alert', (str) => {
+            expect(str).to.contain(`command1 already exists`)
+        });
+    });
+
+    it('fails when adding a composite command with an already used name', () => {
+        cy.visit('http://localhost:4200');
+        cy.clearDevfile();
+        cy.fixture('input/with-image-command.yaml').then(yaml => {
+            cy.setDevfile(yaml);
+        });
+        cy.selectTab(TAB_COMMANDS);
+        cy.getByDataCy('add').click();
+        cy.getByDataCy('new-command-composite').click();
+    
+        cy.getByDataCy('command-composite-name').type('command1');
+        cy.getByDataCy('command-composite-create').click();
+        cy.on('window:alert', (str) => {
+            expect(str).to.contain(`command1 already exists`)
+        });
+    });
+});

ui/cypress/e2e/spec.cy.ts

@@ -0,0 +1,207 @@
+import {TAB_COMMANDS, TAB_CONTAINERS, TAB_IMAGES, TAB_METADATA, TAB_RESOURCES} from './consts';
+
+describe('devfile editor spec', () => {
+
+  it('displays matadata.name set in YAML', () => {
+    cy.visit('http://localhost:4200');
+    cy.clearDevfile();
+    cy.fixture('input/with-metadata-name.yaml').then(yaml => {
+      cy.setDevfile(yaml);
+    });
+
+    cy.selectTab(TAB_METADATA);
+    cy.getByDataCy("metadata-name").should('have.value', 'test-devfile');
+  });
+
+  it('displays container set in YAML', () => {
+    cy.visit('http://localhost:4200');
+    cy.clearDevfile();
+    cy.fixture('input/with-container.yaml').then(yaml => {
+      cy.setDevfile(yaml);
+    });
+
+    cy.selectTab(TAB_CONTAINERS);
+    cy.getByDataCy('container-info').first()
+      .should('contain.text', 'container1')
+      .should('contain.text', 'nginx')
+      .should('contain.text', 'the command to run')
+      .should('contain.text', 'with arg');
+  });
+
+  it('displays a created container', () => {
+    cy.visit('http://localhost:4200');
+    cy.clearDevfile();
+
+    cy.selectTab(TAB_CONTAINERS);
+    cy.getByDataCy('container-name').type('created-container');
+    cy.getByDataCy('container-image').type('an-image');
+    cy.getByDataCy('container-create').click();
+
+    cy.getByDataCy('container-info').first()
+      .should('contain.text', 'created-container')
+      .should('contain.text', 'an-image');
+  });
+
+  it('displays a created image', () => {
+    cy.visit('http://localhost:4200');
+    cy.clearDevfile();
+
+    cy.selectTab(TAB_IMAGES);
+    cy.getByDataCy('image-name').type('created-image');
+    cy.getByDataCy('image-image-name').type('an-image-name');
+    cy.getByDataCy('image-build-context').type('/path/to/build/context');
+    cy.getByDataCy('image-dockerfile-uri').type('/path/to/dockerfile');
+    cy.getByDataCy('image-create').click();
+
+    cy.getByDataCy('image-info').first()
+      .should('contain.text', 'created-image')
+      .should('contain.text', 'an-image-name')
+      .should('contain.text', '/path/to/build/context')
+      .should('contain.text', '/path/to/dockerfile');
+  });
+
+  it('displays a created resource, with manifest', () => {
+    cy.visit('http://localhost:4200');
+    cy.clearDevfile();
+
+    cy.selectTab(TAB_RESOURCES);
+    cy.getByDataCy('resource-name').type('created-resource');
+    cy.getByDataCy('resource-toggle-inlined').click();
+    cy.getByDataCy('resource-manifest').type('a-resource-manifest');
+    cy.getByDataCy('resource-create').click();
+
+    cy.getByDataCy('resource-info').first()
+      .should('contain.text', 'created-resource')
+      .should('contain.text', 'a-resource-manifest');
+  });
+
+  it('displays a created resource, with uri (default)', () => {
+    cy.visit('http://localhost:4200');
+    cy.clearDevfile();
+
+    cy.selectTab(TAB_RESOURCES);
+    cy.getByDataCy('resource-name').type('created-resource');
+    cy.getByDataCy('resource-uri').type('/my/manifest.yaml');
+    cy.getByDataCy('resource-create').click();
+
+    cy.getByDataCy('resource-info').first()
+      .should('contain.text', 'created-resource')
+      .should('contain.text', 'URI')
+      .should('contain.text', '/my/manifest.yaml');
+  });
+
+  it('creates an exec command with a new container', () => {
+    cy.visit('http://localhost:4200');
+    cy.clearDevfile();
+
+    cy.selectTab(TAB_COMMANDS);
+    cy.getByDataCy('add').click();
+    cy.getByDataCy('new-command-exec').click();
+
+    cy.getByDataCy('command-exec-name').type('created-command');
+    cy.getByDataCy('command-exec-command-line').type('a-cmdline');
+    cy.getByDataCy('command-exec-working-dir').type('/path/to/working/dir');
+    cy.getByDataCy('select-container').click().get('mat-option').contains('(New Container)').click();
+    cy.getByDataCy('container-name').type('a-created-container');
+    cy.getByDataCy('container-image').type('an-image');
+    cy.getByDataCy('container-create').click();
+
+    cy.getByDataCy('select-container').should('contain', 'a-created-container');
+    cy.getByDataCy('command-exec-create').click();
+
+    cy.getByDataCy('command-info').first()
+      .should('contain.text', 'created-command')
+      .should('contain.text', 'a-cmdline')
+      .should('contain.text', '/path/to/working/dir')
+      .should('contain.text', 'a-created-container');
+
+    cy.selectTab(TAB_CONTAINERS);
+    cy.getByDataCy('container-info').first()
+      .should('contain.text', 'a-created-container')
+      .should('contain.text', 'an-image');
+  });
+
+  it('creates an apply image command with a new image', () => {
+    cy.visit('http://localhost:4200');
+    cy.clearDevfile();
+
+    cy.selectTab(TAB_COMMANDS);
+    cy.getByDataCy('add').click();
+    cy.getByDataCy('new-command-image').click();
+    cy.getByDataCy('command-image-name').type('created-command');
+    cy.getByDataCy('select-container').click().get('mat-option').contains('(New Image)').click();
+    cy.getByDataCy('image-name').type('a-created-image');
+    cy.getByDataCy('image-image-name').type('an-image-name');
+    cy.getByDataCy('image-build-context').type('/context/dir');
+    cy.getByDataCy('image-dockerfile-uri').type('/path/to/Dockerfile');
+    cy.getByDataCy('image-create').click();
+
+    cy.getByDataCy('select-container').should('contain', 'a-created-image');
+    cy.getByDataCy('command-image-create').click();
+
+    cy.getByDataCy('command-info').first()
+      .should('contain.text', 'created-command')
+      .should('contain.text', 'a-created-image');
+
+    cy.selectTab(TAB_IMAGES);
+    cy.getByDataCy('image-info').first()
+      .should('contain.text', 'a-created-image')
+      .should('contain.text', 'an-image-name')
+      .should('contain.text', '/context/dir')
+      .should('contain.text', '/path/to/Dockerfile');
+  });
+
+  it('creates an apply resource command with a new resource using manifest', () => {
+    cy.visit('http://localhost:4200');
+    cy.clearDevfile();
+
+    cy.selectTab(TAB_COMMANDS);
+    cy.getByDataCy('add').click();
+    cy.getByDataCy('new-command-apply').click();
+    cy.getByDataCy('command-apply-name').type('created-command');
+    cy.getByDataCy('select-container').click().get('mat-option').contains('(New Resource)').click();
+    cy.getByDataCy('resource-name').type('a-created-resource');
+    cy.getByDataCy('resource-toggle-inlined').click();
+    cy.getByDataCy('resource-manifest').type('spec: {}');
+    cy.getByDataCy('resource-create').click();
+
+    cy.getByDataCy('select-container').should('contain', 'a-created-resource');
+    cy.getByDataCy('command-apply-create').click();
+
+    cy.getByDataCy('command-info').first()
+      .should('contain.text', 'created-command')
+      .should('contain.text', 'a-created-resource');
+
+    cy.selectTab(TAB_RESOURCES);
+    cy.getByDataCy('resource-info').first()
+      .should('contain.text', 'a-created-resource')
+      .should('contain.text', 'spec: {}');
+  });
+
+  it('creates an apply resource command with a new resource using uri (default)', () => {
+    cy.visit('http://localhost:4200');
+    cy.clearDevfile();
+
+    cy.selectTab(TAB_COMMANDS);
+    cy.getByDataCy('add').click();
+    cy.getByDataCy('new-command-apply').click();
+    cy.getByDataCy('command-apply-name').type('created-command');
+    cy.getByDataCy('select-container').click().get('mat-option').contains('(New Resource)').click();
+    cy.getByDataCy('resource-name').type('a-created-resource');
+    cy.getByDataCy('resource-uri').type('/my/manifest.yaml');
+    cy.getByDataCy('resource-create').click();
+
+    cy.getByDataCy('select-container').should('contain', 'a-created-resource');
+    cy.getByDataCy('command-apply-create').click();
+
+    cy.getByDataCy('command-info').first()
+      .should('contain.text', 'created-command')
+      .should('contain.text', 'a-created-resource');
+
+    cy.selectTab(TAB_RESOURCES);
+    cy.getByDataCy('resource-info').first()
+      .should('contain.text', 'a-created-resource')
+      .should('contain.text', 'URI')
+      .should('contain.text', '/my/manifest.yaml');
+  });
+});

ui/cypress/fixtures/example.json

@@ -0,0 +1,5 @@
+{
+  "name": "Using fixtures to represent data",
+  "email": "hello@cypress.io",
+  "body": "Fixtures are a great way to mock data for responses to routes"
+}

ui/cypress/fixtures/input/with-apply-command.yaml

@@ -0,0 +1,10 @@
+schemaVersion: 2.2.0
+metadata: {}
+commands:
+- apply:
+    component: resource1
+  id: command1
+components:
+- kubernetes:
+    uri: uri
+  name: resource1

ui/cypress/fixtures/input/with-container.yaml

@@ -0,0 +1,14 @@
+schemaVersion: 2.2.0
+metadata: {}
+components:
+- container:
+    args:
+    - with
+    - arg
+    command:
+    - the
+    - command
+    - to
+    - run
+    image: nginx
+  name: container1

ui/cypress/fixtures/input/with-exec-command.yaml

@@ -0,0 +1,23 @@
+schemaVersion: 2.2.0
+metadata: {}
+commands:
+- exec:
+    commandLine: ./build.sh
+    component: container1
+    hotReloadCapable: false
+    workingDir: /projects
+  id: command1
+components:
+- container:
+    args:
+    - with
+    - arg
+    command:
+    - the
+    - command
+    - to
+    - run
+    dedicatedPod: false
+    image: nginx
+    mountSources: true
+  name: container1

ui/cypress/fixtures/input/with-image-command.yaml

@@ -0,0 +1,14 @@
+schemaVersion: 2.2.0
+metadata: {}
+commands:
+- apply:
+    component: image1
+  id: command1
+components:
+- image:
+    autoBuild: false
+    dockerfile:
+      rootRequired: false
+      uri: dockerfile
+    imageName: nginx
+  name: image1

ui/cypress/fixtures/input/with-metadata-name.yaml

@@ -0,0 +1,3 @@
+schemaVersion: 2.2.0
+metadata:
+  name: test-devfile

ui/cypress/support/commands.ts

@@ -0,0 +1,64 @@
+/// <reference types="cypress" />
+// ***********************************************
+// This example commands.ts shows you how to
+// create various custom commands and overwrite
+// existing commands.
+//
+// For more comprehensive examples of custom
+// commands please read more here:
+// https://on.cypress.io/custom-commands
+// ***********************************************
+//
+//
+// -- This is a parent command --
+// Cypress.Commands.add('login', (email, password) => { ... })
+//
+//
+// -- This is a child command --
+// Cypress.Commands.add('drag', { prevSubject: 'element'}, (subject, options) => { ... })
+//
+//
+// -- This is a dual command --
+// Cypress.Commands.add('dismiss', { prevSubject: 'optional'}, (subject, options) => { ... })
+//
+//
+// -- This will overwrite an existing command --
+// Cypress.Commands.overwrite('visit', (originalFn, url, options) => { ... })
+//
+// declare global {
+//   namespace Cypress {
+//     interface Chainable {
+//       login(email: string, password: string): Chainable<void>
+//       drag(subject: string, options?: Partial<TypeOptions>): Chainable<Element>
+//       dismiss(subject: string, options?: Partial<TypeOptions>): Chainable<Element>
+//       visit(originalFn: CommandOriginalFn, url: string, options: Partial<VisitOptions>): Chainable<Element>
+//     }
+//   }
+// }
+
+Cypress.Commands.add('getByDataCy', (value: string) => {
+    cy.get('[data-cy="'+value+'"]');
+});
+
+Cypress.Commands.add('selectTab', (n: number) => {
+    cy.get('div[role=tab]').eq(n).click();
+});
+
+Cypress.Commands.add('setDevfile', (devfile: string) => {
+    cy.get('[data-cy="yaml-input"]').type(devfile);
+    cy.get('[data-cy="yaml-save"]').click();
+});
+
+Cypress.Commands.add('clearDevfile', () => {
+    cy.get('[data-cy="yaml-clear"]', { timeout: 60000 }).click();
+});
+
+declare namespace Cypress {
+    interface Chainable {
+        getByDataCy(value: string): Chainable<void>
+        selectTab(n: number):  Chainable<void>
+
+        setDevfile(devfile: string): Chainable<void>
+        clearDevfile(): Chainable<void>
+    }
+}

ui/cypress/support/e2e.ts

@@ -0,0 +1,20 @@
+// ***********************************************************
+// This example support/e2e.ts is processed and
+// loaded automatically before your test files.
+//
+// This is a great place to put global configuration and
+// behavior that modifies Cypress.
+//
+// You can change the location of this file or turn off
+// automatically serving support files with the
+// 'supportFile' configuration option.
+//
+// You can read more here:
+// https://on.cypress.io/configuration
+// ***********************************************************
+
+// Import commands.js using ES2015 syntax:
+import './commands'
+
+// Alternatively you can use CommonJS syntax:
+// require('./commands')

ui/devfile.yaml

@@ -0,0 +1,72 @@
+commands:
+- composite:
+    commands:
+    - go-build
+    - angular-install
+    group:
+      isDefault: true
+      kind: build
+    parallel: true
+  id: build
+- exec:
+    commandLine: npm run start
+    component: node
+    group:
+      isDefault: true
+      kind: run
+    hotReloadCapable: true
+    workingDir: ${PROJECT_SOURCE}
+  id: run
+- exec:
+    commandLine: make deploy
+    component: node
+    group:
+      isDefault: true
+      kind: deploy
+    hotReloadCapable: false
+    workingDir: ${PROJECTS_ROOT}
+  id: deploy
+- exec:
+    commandLine: make build-wasm
+    component: go
+    env:
+    - name: GOPATH
+      value: ${PROJECT_SOURCE}/.go
+    - name: GOCACHE
+      value: ${PROJECT_SOURCE}/.cache
+    hotReloadCapable: false
+    workingDir: ${PROJECT_SOURCE}
+  id: go-build
+- exec:
+    commandLine: npm install
+    component: node
+    hotReloadCapable: false
+    workingDir: ${PROJECT_SOURCE}
+  id: angular-install
+components:
+- container:
+    args:
+    - tail
+    - -f
+    - /dev/null
+    dedicatedPod: false
+    endpoints:
+    - name: http-angular
+      secure: false
+      targetPort: 4200
+    image: registry.access.redhat.com/ubi8/nodejs-16:latest
+    memoryLimit: 4096Mi
+    mountSources: true
+  name: node
+- container:
+    args:
+    - tail
+    - -f
+    - /dev/null
+    dedicatedPod: false
+    image: registry.access.redhat.com/ubi9/go-toolset:1.18.9-14
+    memoryLimit: 1024Mi
+    mountSources: true
+  name: go
+metadata: {}
+schemaVersion: 2.2.0

ui/package.json

@@ -0,0 +1,48 @@
+{
+  "name": "devfile-builder",
+  "version": "0.0.0",
+  "scripts": {
+    "ng": "ng",
+    "start": "ng serve --host 0.0.0.0",
+    "build": "ng build",
+    "watch": "ng build --watch --configuration development",
+    "test": "ng test",
+    "cypress:open": "cypress open",
+    "cypress:run": "cypress run",
+    "deploy": "ng deploy --base-href='/'"
+  },
+  "private": true,
+  "dependencies": {
+    "@angular/animations": "^15.2.0",
+    "@angular/cdk": "^15.2.2",
+    "@angular/common": "^15.2.0",
+    "@angular/compiler": "^15.2.0",
+    "@angular/core": "^15.2.0",
+    "@angular/forms": "^15.2.0",
+    "@angular/material": "^15.2.2",
+    "@angular/platform-browser": "^15.2.0",
+    "@angular/platform-browser-dynamic": "^15.2.0",
+    "@angular/router": "^15.2.0",
+    "mermaid": "^10.0.2",
+    "rxjs": "~7.8.0",
+    "tslib": "^2.3.0",
+    "zone.js": "~0.12.0"
+  },
+  "devDependencies": {
+    "@angular-devkit/build-angular": "^15.2.2",
+    "@angular/cli": "~15.2.2",
+    "@angular/compiler-cli": "^15.2.0",
+    "@types/d3": "^7.4.0",
+    "@types/dompurify": "^2.4.0",
+    "@types/jasmine": "~4.3.0",
+    "angular-cli-ghpages": "^1.0.5",
+    "cypress": "^12.11.0",
+    "jasmine-core": "~4.5.0",
+    "karma": "~6.4.0",
+    "karma-chrome-launcher": "~3.1.0",
+    "karma-coverage": "~2.2.0",
+    "karma-jasmine": "~5.1.0",
+    "karma-jasmine-html-reporter": "~2.0.0",
+    "typescript": "~4.9.4"
+  }
+}

ui/src/CNAME

@@ -0,0 +1 @@
+devfile.odo.dev

ui/src/app/app.component.css

@@ -0,0 +1,35 @@
+main { min-height: calc(100vh - 100px); }
+
+div.mermaid {
+    /* font-family: 'trebuchet ms', verdana, arial; */
+    font-family: 'Courier New', Courier, monospace !important;
+}
+
+.flex-container {
+    display: flex;
+}
+
+.flex-child {
+    flex: 1;
+}  
+
+.flex-child:first-child {
+    margin-right: 20px;
+} 
+
+#input {
+    width: 99%;
+}
+
+button {
+    margin-top: 20px;
+}
+
+mat-form-field.full-width { width: 100%; }
+
+div.tab-content { padding: 16px; }
+
+div.error-message {
+    font-size: large;
+    margin: 16px;
+}

ui/src/app/app.component.html

@@ -0,0 +1,90 @@
+<mat-toolbar color="primary">
+    <span>Devfile Builder</span>
+    <span class="spacer"></span>
+    <span class="topright">Work in progress</span>
+    <a mat-icon-button href="https://github.com/feloy/devfile-builder" target="_blank"><mat-icon svgIcon="github"></mat-icon></a>
+</mat-toolbar>
+<main>
+
+    <div class="flex-container">
+
+        <div class="flex-child">
+            <mat-tab-group animationDuration="0">
+
+                <mat-tab data-cy="tab-yaml" label="YAML">
+                    <div class="tab-content">
+                        <div *ngIf="errorMessage" data-cy="yaml-error" class="error-message">{{errorMessage}}</div>
+                        <mat-form-field appearance="outline" class="full-width">
+                            <mat-label>Devfile YAML</mat-label>
+                            <textarea data-cy="yaml-input" matInput #input id="input" rows="20" [value]="devfileYaml"></textarea>
+                        </mat-form-field>
+                        <button data-cy="yaml-save" mat-flat-button color="primary" (click)="onButtonClick(input.value)">Save</button>
+                        <button data-cy="yaml-clear" mat-flat-button color="warn" (click)="clear()">Clear</button>
+                    </div>
+                </mat-tab>
+
+                <mat-tab data-cy="tab-chart" label="Chart">
+                    <div class="flex-child">
+                        <div #mermaid id="mermaid" class="mermaid" [innerHTML]="sanitizer.bypassSecurityTrustHtml(mermaidContent)"></div>
+                    </div>            
+                </mat-tab>
+
+                <mat-tab data-cy="tab-metadata">
+                    <ng-template mat-tab-label>
+                        Metadata
+                    </ng-template>
+                    <app-metadata></app-metadata>
+                </mat-tab>
+
+                <mat-tab>
+                    <ng-template mat-tab-label>
+                        <mat-icon class="tab-icon material-icons-outlined">code</mat-icon>
+                        Commands
+                    </ng-template>
+                    <app-commands></app-commands>
+                </mat-tab>
+
+                <mat-tab>
+                    <ng-template mat-tab-label>
+                        <mat-icon class="tab-icon material-icons-outlined">alarm</mat-icon>
+                        Events
+                    </ng-template>
+                    <app-events></app-events>
+                </mat-tab>
+
+                <mat-tab>
+                    <ng-template mat-tab-label>
+                        <mat-icon class="tab-icon material-icons-outlined">width_normal</mat-icon>
+                        Containers
+                    </ng-template>
+                    <app-containers></app-containers>
+                </mat-tab>
+
+                <mat-tab>
+                    <ng-template mat-tab-label>
+                        <mat-icon class="tab-icon material-icons-outlined">image</mat-icon>
+                        Images
+                    </ng-template>
+                    <app-images></app-images>
+                </mat-tab>
+
+                <mat-tab >
+                    <ng-template mat-tab-label>
+                        <mat-icon class="tab-icon material-icons-outlined">description</mat-icon>
+                        Resources
+                    </ng-template>
+                    <app-resources></app-resources>
+                </mat-tab>
+
+                <mat-tab>
+                    <ng-template mat-tab-label>
+                        <mat-icon class="tab-icon material-icons-outlined">storage</mat-icon>
+                        Volumes
+                    </ng-template>
+                </mat-tab>
+
+            </mat-tab-group>
+        </div>      
+
+    </div>
+</main>

ui/src/app/app.component.spec.ts

@@ -0,0 +1,31 @@
+import { TestBed } from '@angular/core/testing';
+import { AppComponent } from './app.component';
+
+describe('AppComponent', () => {
+  beforeEach(async () => {
+    await TestBed.configureTestingModule({
+      declarations: [
+        AppComponent
+      ],
+    }).compileComponents();
+  });
+
+  it('should create the app', () => {
+    const fixture = TestBed.createComponent(AppComponent);
+    const app = fixture.componentInstance;
+    expect(app).toBeTruthy();
+  });
+
+  it(`should have as title 'devfile-builder'`, () => {
+    const fixture = TestBed.createComponent(AppComponent);
+    const app = fixture.componentInstance;
+    expect(app.title).toEqual('devfile-builder');
+  });
+
+  it('should render title', () => {
+    const fixture = TestBed.createComponent(AppComponent);
+    fixture.detectChanges();
+    const compiled = fixture.nativeElement as HTMLElement;
+    expect(compiled.querySelector('.content span')?.textContent).toContain('devfile-builder app is running!');
+  });
+});

ui/src/app/app.component.ts

@@ -0,0 +1,74 @@
+import { Component, OnInit } from '@angular/core';
+import { WasmGoService } from './services/wasm-go.service';
+import { DomSanitizer } from '@angular/platform-browser';
+import { MermaidService } from './services/mermaid.service';
+import { StateService } from './services/state.service';
+import { MatIconRegistry } from "@angular/material/icon";
+
+@Component({
+  selector: 'app-root',
+  templateUrl: './app.component.html',
+  styleUrls: ['./app.component.css']
+})
+export class AppComponent implements OnInit {
+
+  protected mermaidContent: string = "";
+  protected devfileYaml: string = "";
+  protected errorMessage: string  = "";
+
+  constructor(
+    protected sanitizer: DomSanitizer,
+    private matIconRegistry: MatIconRegistry,
+    private wasmGo: WasmGoService,
+    private mermaid: MermaidService,
+    private state: StateService,
+  ) {
+    this.matIconRegistry.addSvgIcon(
+      `github`,
+      this.sanitizer.bypassSecurityTrustResourceUrl(`../assets/github-24.svg`)
+    );
+  }
+
+  ngOnInit() {
+    const loading = document.getElementById("loading");
+    if (loading != null) {
+      loading.style.visibility = "hidden";
+    }
+
+    const devfile = this.state.getDevfile();
+    if (devfile != null) {
+      this.onButtonClick(devfile);
+    }
+
+    this.state.state.subscribe(async newContent => {
+      if (newContent == null) {
+        return;
+      }
+
+      this.devfileYaml = newContent.content;
+
+      try {
+        const result = this.wasmGo.getFlowChart();
+        const svg = await this.mermaid.getMermaidAsSVG(result);
+        this.mermaidContent = svg;  
+      } catch {}
+    });
+  }
+
+  onButtonClick(content: string){
+    const result = this.wasmGo.setDevfileContent(content);
+    if (result.err != '') {
+      this.errorMessage = result.err;
+    } else {
+      this.errorMessage = '';
+      this.state.changeDevfileYaml(result.value);
+    }
+  }
+
+  clear() {
+    if (confirm('You will delete the content of the Devfile. Continue?')) {
+      this.state.resetDevfile();
+      window.location.reload();  
+    }
+  }
+}

ui/src/app/app.module.ts

@@ -0,0 +1,114 @@
+import { APP_INITIALIZER, NgModule } from '@angular/core';
+import { BrowserModule } from '@angular/platform-browser';
+import { BrowserAnimationsModule } from '@angular/platform-browser/animations';
+import { ReactiveFormsModule } from '@angular/forms';
+import { FormsModule } from '@angular/forms';
+import { HttpClientModule } from "@angular/common/http";
+
+import { DragDropModule } from '@angular/cdk/drag-drop';
+
+import { MatAutocompleteModule } from '@angular/material/autocomplete';
+import { MatButtonModule } from '@angular/material/button';
+import { MatButtonToggleModule } from '@angular/material/button-toggle';
+import { MatCardModule } from '@angular/material/card';
+import { MatCheckboxModule } from '@angular/material/checkbox';
+import { MatChipsModule } from '@angular/material/chips';
+import { MatFormFieldModule } from '@angular/material/form-field';
+import { MatIconModule } from '@angular/material/icon';
+import { MatInputModule } from '@angular/material/input';
+import { MatMenuModule } from '@angular/material/menu';
+import { MatSelectModule } from '@angular/material/select';
+import { MatTabsModule } from '@angular/material/tabs';
+import { MatToolbarModule } from '@angular/material/toolbar';
+import { MatTooltipModule } from '@angular/material/tooltip';
+
+import { AppComponent } from './app.component';
+import { MetadataComponent } from './forms/metadata/metadata.component';
+import { MultiTextComponent } from './controls/multi-text/multi-text.component';
+import { ContainersComponent } from './tabs/containers/containers.component';
+import { ContainerComponent } from './forms/container/container.component';
+import { CommandsComponent } from './tabs/commands/commands.component';
+import { CommandExecComponent } from './forms/command-exec/command-exec.component';
+import { CommandApplyComponent } from './forms/command-apply/command-apply.component';
+import { CommandCompositeComponent } from './forms/command-composite/command-composite.component';
+import { SelectContainerComponent } from './controls/select-container/select-container.component';
+import { ResourcesComponent } from './tabs/resources/resources.component';
+import { ResourceComponent } from './forms/resource/resource.component';
+import { ImagesComponent } from './tabs/images/images.component';
+import { ImageComponent } from './forms/image/image.component';
+import { CommandImageComponent } from './forms/command-image/command-image.component';
+import { CommandsListComponent } from './lists/commands-list/commands-list.component';
+import { MultiCommandComponent } from './controls/multi-command/multi-command.component';
+import { EventsComponent } from './tabs/events/events.component';
+import { ChipsEventsComponent } from './controls/chips-events/chips-events.component';
+
+declare const Go: any;
+
+function loadWasmModule() {
+  return () => {
+    return new Promise<void>((resolve) => {
+      const go = new Go();
+      WebAssembly.instantiateStreaming(fetch("./assets/devfile.6ccdbea7789422ba86e8b08707f15f66.wasm"), go.importObject).then((result) => {
+          go.run(result.instance);
+          resolve();
+      });
+    });
+  };
+}
+
+@NgModule({
+  declarations: [
+    AppComponent,
+    MetadataComponent,
+    MultiTextComponent,
+    ContainersComponent,
+    ContainerComponent,
+    CommandsComponent,
+    CommandExecComponent,
+    CommandApplyComponent,
+    CommandCompositeComponent,
+    SelectContainerComponent,
+    ResourcesComponent,
+    ResourceComponent,
+    ImagesComponent,
+    ImageComponent,
+    CommandImageComponent,
+    CommandsListComponent,
+    MultiCommandComponent,
+    EventsComponent,
+    ChipsEventsComponent,
+  ],
+  imports: [
+    BrowserModule,
+    BrowserAnimationsModule,
+    ReactiveFormsModule,
+    FormsModule,
+    HttpClientModule,
+    
+    DragDropModule,
+    
+    MatAutocompleteModule,
+    MatButtonModule,
+    MatButtonToggleModule,
+    MatCardModule,
+    MatCheckboxModule,
+    MatChipsModule,
+    MatFormFieldModule,
+    MatIconModule,
+    MatInputModule,
+    MatMenuModule,
+    MatSelectModule,
+    MatTabsModule,
+    MatToolbarModule,
+    MatTooltipModule
+  ],
+  providers: [
+    {
+      provide: APP_INITIALIZER,
+      useFactory: loadWasmModule,
+      multi: true,
+    },
+  ],
+  bootstrap: [AppComponent]
+})
+export class AppModule { }

ui/src/app/controls/chips-events/chips-events.component.css

@@ -0,0 +1,3 @@
+.chip-list {
+    width: 100%;
+}

ui/src/app/controls/chips-events/chips-events.component.html

@@ -0,0 +1,20 @@
+<mat-form-field class="chip-list" appearance="fill">
+  <mat-label>Commands</mat-label>
+  <mat-chip-grid #chipGrid>
+    <mat-chip-row *ngFor="let cmd of commands" (removed)="remove(cmd)">
+      {{cmd}}
+      <button matChipRemove>
+        <mat-icon class="material-icons-outlined">cancel</mat-icon>
+      </button>
+    </mat-chip-row>
+  </mat-chip-grid>
+  <input placeholder="New command..." #commandInput [formControl]="commandCtrl"
+    [matChipInputFor]="chipGrid" [matAutocomplete]="auto"
+    [matChipInputSeparatorKeyCodes]="separatorKeysCodes"
+    (matChipInputTokenEnd)="add($event)"/>
+  <mat-autocomplete #auto="matAutocomplete" (optionSelected)="selected($event)">
+    <mat-option *ngFor="let cmd of filteredCommands | async" [value]="cmd">
+      {{cmd}}
+    </mat-option>
+  </mat-autocomplete>
+</mat-form-field>

ui/src/app/controls/chips-events/chips-events.component.spec.ts

@@ -0,0 +1,23 @@
+import { ComponentFixture, TestBed } from '@angular/core/testing';
+
+import { ChipsEventsComponent } from './chips-events.component';
+
+describe('ChipsEventsComponent', () => {
+  let component: ChipsEventsComponent;
+  let fixture: ComponentFixture<ChipsEventsComponent>;
+
+  beforeEach(async () => {
+    await TestBed.configureTestingModule({
+      declarations: [ ChipsEventsComponent ]
+    })
+    .compileComponents();
+
+    fixture = TestBed.createComponent(ChipsEventsComponent);
+    component = fixture.componentInstance;
+    fixture.detectChanges();
+  });
+
+  it('should create', () => {
+    expect(component).toBeTruthy();
+  });
+});

ui/src/app/controls/chips-events/chips-events.component.ts

@@ -0,0 +1,66 @@
+import { Component, ElementRef, EventEmitter, Input, Output, ViewChild } from '@angular/core';
+import { MatAutocompleteSelectedEvent } from '@angular/material/autocomplete';
+import { MatChipInputEvent } from '@angular/material/chips';
+import {COMMA, ENTER} from '@angular/cdk/keycodes';
+import { Observable, startWith, map } from 'rxjs';
+import { FormControl } from '@angular/forms';
+
+@Component({
+  selector: 'app-chips-events',
+  templateUrl: './chips-events.component.html',
+  styleUrls: ['./chips-events.component.css']
+})
+export class ChipsEventsComponent {
+  @Input() commands : string[] = [];
+  @Input() allCommands: string[] = [];
+  @Output() updated = new EventEmitter<string[]>();
+
+  separatorKeysCodes: number[] = [ENTER, COMMA];
+  commandCtrl = new FormControl('');
+  filteredCommands: Observable<string[]>;
+  
+  
+  constructor(public commandInput :ElementRef<HTMLInputElement>) {
+    this.filteredCommands = this.commandCtrl.valueChanges.pipe(
+      startWith(null),
+      map((cmd: string | null) => (cmd ? this._filter(cmd) : this.allCommands.slice())),
+    );
+  }
+
+  add(event: MatChipInputEvent): void {
+    const value = (event.value || '').trim();
+
+    // Add our command
+    if (value) {
+      this.commands.push(value);
+      this.updated.emit(this.commands);
+    }
+
+    // Clear the input value
+    event.chipInput!.clear();
+
+    this.commandCtrl.setValue(null);
+  }
+
+  remove(command: string): void {
+    const index = this.commands.indexOf(command);
+
+    if (index >= 0) {
+      this.commands.splice(index, 1);
+      this.updated.emit(this.commands);
+    }
+  }
+
+  selected(event: MatAutocompleteSelectedEvent): void {
+    this.commands.push(event.option.viewValue);
+    this.updated.emit(this.commands);
+    this.commandInput.nativeElement.value = '';
+    this.commandCtrl.setValue(null);
+  }
+
+  private _filter(value: string): string[] {
+    const filterValue = value.toLowerCase();
+
+    return this.allCommands.filter(cmd => cmd.toLowerCase().includes(filterValue));
+  }
+}

ui/src/app/controls/multi-command/multi-command.component.css

@@ -0,0 +1,2 @@
+h3 { margin-bottom: 0; }
+div.group { margin-bottom: 16px; }

ui/src/app/controls/multi-command/multi-command.component.html

@@ -0,0 +1,14 @@
+<h3>{{title}}</h3>
+<div class="group">
+    <span *ngFor="let command of commands; let i=index">
+        <mat-form-field appearance="fill">
+            <mat-select [value]="command" (selectionChange)="onCommandChange(i, $event.value)">
+                <mat-option *ngFor="let commandElement of commandList" [value]="commandElement">{{commandElement}}</mat-option>
+            </mat-select>
+        </mat-form-field>
+    </span>
+    <button *ngIf="commands.length > 0" mat-icon-button (click)="addCommand()">
+        <mat-icon class="tab-icon material-icons-outlined">add</mat-icon>
+    </button>                
+    <button *ngIf="commands.length == 0" mat-flat-button (click)="addCommand()">{{addLabel}}</button>
+</div>

ui/src/app/controls/multi-command/multi-command.component.spec.ts

@@ -0,0 +1,23 @@
+import { ComponentFixture, TestBed } from '@angular/core/testing';
+
+import { MultiCommandComponent } from './multi-command.component';
+
+describe('MultiCommandComponent', () => {
+  let component: MultiCommandComponent;
+  let fixture: ComponentFixture<MultiCommandComponent>;
+
+  beforeEach(async () => {
+    await TestBed.configureTestingModule({
+      declarations: [ MultiCommandComponent ]
+    })
+    .compileComponents();
+
+    fixture = TestBed.createComponent(MultiCommandComponent);
+    component = fixture.componentInstance;
+    fixture.detectChanges();
+  });
+
+  it('should create', () => {
+    expect(component).toBeTruthy();
+  });
+});

ui/src/app/controls/multi-command/multi-command.component.ts

@@ -0,0 +1,45 @@
+import { Component, Input } from '@angular/core';
+import { NG_VALUE_ACCESSOR } from '@angular/forms';
+
+@Component({
+  selector: 'app-multi-command',
+  templateUrl: './multi-command.component.html',
+  styleUrls: ['./multi-command.component.css'],
+  providers: [
+    {
+      provide: NG_VALUE_ACCESSOR,
+      multi: true,
+      useExisting: MultiCommandComponent
+    }
+  ]
+})
+export class MultiCommandComponent {
+
+  @Input() addLabel: string = "";
+  @Input() commandList: string[] = [];
+  @Input() title: string = "";
+
+  onChange = (_: string[]) => {};
+
+  commands: string[] = [];
+
+  writeValue(value: any) {
+    this.commands = value;
+  }
+
+  registerOnChange(onChange: any) {
+    this.onChange = onChange;
+  }
+
+  registerOnTouched(_: any) {}
+
+  addCommand() {
+    this.commands.push("");
+    this.onChange(this.commands);
+  }
+
+  onCommandChange(i: number, cmd: string) {
+    this.commands[i] = cmd;
+    this.onChange(this.commands);
+  }
+}

ui/src/app/controls/multi-text/multi-text.component.css

@@ -0,0 +1,2 @@
+h3 { margin-bottom: 0; }
+div.group { margin-bottom: 16px; }

ui/src/app/controls/multi-text/multi-text.component.html

@@ -0,0 +1,13 @@
+<h3>{{title}}</h3>
+<div class="group">
+    <span *ngFor="let text of texts; let i=index">
+        <mat-form-field class="inline" appearance="outline">
+            <mat-label><span>{{label}}</span></mat-label>
+            <input matInput [value]="text" (change)="onTextChange(i, $event)">
+        </mat-form-field>    
+    </span>
+    <button *ngIf="texts.length > 0" mat-icon-button (click)="addText()">
+        <mat-icon class="tab-icon material-icons-outlined">add</mat-icon>
+    </button>                
+    <button *ngIf="texts.length == 0" mat-flat-button (click)="addText()">{{addLabel}}</button>
+</div>

ui/src/app/controls/multi-text/multi-text.component.spec.ts

@@ -0,0 +1,23 @@
+import { ComponentFixture, TestBed } from '@angular/core/testing';
+
+import { MultiTextComponent } from './multi-text.component';
+
+describe('MultiTextComponent', () => {
+  let component: MultiTextComponent;
+  let fixture: ComponentFixture<MultiTextComponent>;
+
+  beforeEach(async () => {
+    await TestBed.configureTestingModule({
+      declarations: [ MultiTextComponent ]
+    })
+    .compileComponents();
+
+    fixture = TestBed.createComponent(MultiTextComponent);
+    component = fixture.componentInstance;
+    fixture.detectChanges();
+  });
+
+  it('should create', () => {
+    expect(component).toBeTruthy();
+  });
+});

ui/src/app/controls/multi-text/multi-text.component.ts

@@ -0,0 +1,47 @@
+import { Component, Input } from '@angular/core';
+import { ControlValueAccessor, NG_VALUE_ACCESSOR } from '@angular/forms';
+
+@Component({
+  selector: 'app-multi-text',
+  templateUrl: './multi-text.component.html',
+  styleUrls: ['./multi-text.component.css'],
+  providers: [
+    {
+      provide: NG_VALUE_ACCESSOR,
+      multi: true,
+      useExisting: MultiTextComponent
+    }
+  ]
+
+})
+export class MultiTextComponent implements ControlValueAccessor {
+
+  @Input() label: string = "";
+  @Input() addLabel: string = "";
+  @Input() title: string = "";
+
+  onChange = (_: string[]) => {};
+
+  texts: string[] = [];
+
+  writeValue(value: any) {
+    this.texts = value;
+  }
+
+  registerOnChange(onChange: any) {
+    this.onChange = onChange;
+  }
+
+  registerOnTouched(_: any) {}
+
+  addText() {
+    this.texts.push("");
+    this.onChange(this.texts);
+  }
+
+  onTextChange(i: number, e: Event) {
+    const target = e.target as HTMLInputElement;
+    this.texts[i] = target.value;
+    this.onChange(this.texts);
+  }
+}

ui/src/app/controls/select-container/select-container.component.html

@@ -0,0 +1,7 @@
+<mat-form-field appearance="fill">
+    <mat-label>{{label}}</mat-label>
+    <mat-select data-cy="select-container" [value]="container" (selectionChange)="onSelectChange($event.value)">
+        <mat-option *ngFor="let container of containers" [value]="container">{{container}}</mat-option>
+        <mat-option value="!">(New {{label}})</mat-option>
+    </mat-select>
+</mat-form-field>

ui/src/app/controls/select-container/select-container.component.spec.ts

@@ -0,0 +1,23 @@
+import { ComponentFixture, TestBed } from '@angular/core/testing';
+
+import { SelectContainerComponent } from './select-container.component';
+
+describe('SelectContainerComponent', () => {
+  let component: SelectContainerComponent;
+  let fixture: ComponentFixture<SelectContainerComponent>;
+
+  beforeEach(async () => {
+    await TestBed.configureTestingModule({
+      declarations: [ SelectContainerComponent ]
+    })
+    .compileComponents();
+
+    fixture = TestBed.createComponent(SelectContainerComponent);
+    component = fixture.componentInstance;
+    fixture.detectChanges();
+  });
+
+  it('should create', () => {
+    expect(component).toBeTruthy();
+  });
+});

ui/src/app/controls/select-container/select-container.component.ts

@@ -0,0 +1,42 @@
+import { Component, EventEmitter, Input, Output } from '@angular/core';
+import { ControlValueAccessor, NG_VALUE_ACCESSOR } from '@angular/forms';
+
+@Component({
+  selector: 'app-select-container',
+  templateUrl: './select-container.component.html',
+  styleUrls: ['./select-container.component.css'],
+  providers: [
+    {
+      provide: NG_VALUE_ACCESSOR,
+      multi: true,
+      useExisting: SelectContainerComponent
+    }
+  ]
+})
+export class SelectContainerComponent implements ControlValueAccessor {
+  
+  @Input() containers: string[] = [];
+  @Input() label: string = "";
+  @Output() createNew = new EventEmitter<boolean>();
+
+  container: string = "";
+
+  onChange = (_: string) => {};
+
+  writeValue(value: any) {
+    this.container = value;
+  }
+
+  registerOnChange(onChange: any) {
+    this.onChange = onChange;
+  }
+
+  registerOnTouched(_: any) {}
+
+  onSelectChange(v: string) {
+    if (v != "!") {
+      this.onChange(v);
+    }
+    this.createNew.emit(v == "!");
+  }
+}

ui/src/app/forms/command-apply/command-apply.component.css

@@ -0,0 +1,3 @@
+.main { padding: 16px; }
+mat-form-field.full-width { width: 100%; }
+mat-form-field.mid-width { width: 50%; }

ui/src/app/forms/command-apply/command-apply.component.html

@@ -0,0 +1,24 @@
+<div class="main">
+    <h2>Add an Apply Command</h2>
+    <div class="description">An Apply command "applies" a resource to the cluster. Equivalent to <code>kubectl apply -f ...</code></div>
+    <form [formGroup]="form">
+        <mat-form-field appearance="outline" class="mid-width">
+            <mat-label><span>Name</span></mat-label>
+            <mat-error>Lowercase words separated by dashes. Ex: my-command</mat-error>
+            <input placeholder="unique name to identify the command" data-cy="command-apply-name" matInput formControlName="name">
+        </mat-form-field>
+        <div><app-select-container
+            formControlName="component"
+            label="Resource"
+            [containers]="resourceList"
+            (createNew)="onCreateNewContainer($event)"></app-select-container></div>
+    </form>
+
+    <app-resource
+        *ngIf="showNewResource"
+        (created)="onNewResourceCreated($event)"
+        ></app-resource>
+
+    <button data-cy="command-apply-create" [disabled]="form.invalid" mat-flat-button color="primary" matTooltip="create new Apply Command" (click)="create()">Create</button>
+    <button mat-flat-button (click)="cancel()">Cancel</button>
+</div>

ui/src/app/forms/command-apply/command-apply.component.spec.ts

@@ -0,0 +1,23 @@
+import { ComponentFixture, TestBed } from '@angular/core/testing';
+
+import { CommandApplyComponent } from './command-apply.component';
+
+describe('CommandApplyComponent', () => {
+  let component: CommandApplyComponent;
+  let fixture: ComponentFixture<CommandApplyComponent>;
+
+  beforeEach(async () => {
+    await TestBed.configureTestingModule({
+      declarations: [ CommandApplyComponent ]
+    })
+    .compileComponents();
+
+    fixture = TestBed.createComponent(CommandApplyComponent);
+    component = fixture.componentInstance;
+    fixture.detectChanges();
+  });
+
+  it('should create', () => {
+    expect(component).toBeTruthy();
+  });
+});

ui/src/app/forms/command-apply/command-apply.component.ts

@@ -0,0 +1,70 @@
+import { Component, EventEmitter, Output } from '@angular/core';
+import { FormControl, FormGroup, Validators } from '@angular/forms';
+import { StateService } from 'src/app/services/state.service';
+import { ClusterResource, WasmGoService } from 'src/app/services/wasm-go.service';
+import { PATTERN_COMMAND_ID } from '../patterns';
+
+@Component({
+  selector: 'app-command-apply',
+  templateUrl: './command-apply.component.html',
+  styleUrls: ['./command-apply.component.css']
+})
+export class CommandApplyComponent {
+  @Output() canceled = new EventEmitter<void>();
+
+  form: FormGroup;
+  resourceList: string[] = [];
+  showNewResource: boolean = false;
+  resourceToCreate: ClusterResource | null = null;
+
+  constructor(
+    private wasm: WasmGoService,
+    private state: StateService,
+  ) {
+    this.form = new FormGroup({
+      name: new FormControl("", [Validators.required, Validators.pattern(PATTERN_COMMAND_ID)]),
+      component: new FormControl("", [Validators.required]),
+    });
+
+    this.state.state.subscribe(async newContent => {
+      const resources = newContent?.resources;
+      if (resources == null) {
+        return
+      }
+      this.resourceList = resources.map(resource => resource.name);
+    });
+  }
+
+  create() {
+    if (this.resourceToCreate != null && 
+      this.resourceToCreate?.name == this.form.controls["component"].value) {
+      const result = this.wasm.addResource(this.resourceToCreate);
+      if (result.err != '') {
+        alert(result.err);
+        return;
+      }
+    }
+
+    const result = this.wasm.addApplyCommand(this.form.value["name"], this.form.value);
+    if (result.err != '') {
+      alert(result.err);      
+    } else {
+      this.state.changeDevfileYaml(result.value);
+    }
+  }
+
+  cancel() {
+    this.canceled.emit();
+  }
+
+  onCreateNewContainer(v: boolean) {
+    this.showNewResource = v;
+  }
+
+  onNewResourceCreated(resource: ClusterResource) {
+    this.resourceList.push(resource.name);
+    this.form.controls["component"].setValue(resource.name);
+    this.showNewResource = false;
+    this.resourceToCreate = resource;
+  }
+}

ui/src/app/forms/command-composite/command-composite.component.css

@@ -0,0 +1,3 @@
+.main { padding: 16px; }
+mat-form-field.full-width { width: 100%; }
+mat-form-field.mid-width { width: 50%; }

ui/src/app/forms/command-composite/command-composite.component.html

@@ -0,0 +1,16 @@
+<div class="main">
+    <h2>Add a Composite Command</h2>
+    <div class="description">A Composite command executes several commands, either serially or in parallel.</div>
+    <form [formGroup]="form">
+        <mat-form-field appearance="outline" class="mid-width">
+            <mat-label><span>Name</span></mat-label>
+            <mat-error>Lowercase words separated by dashes. Ex: my-command</mat-error>
+            <input placeholder="unique name to identify the command" data-cy="command-composite-name" matInput formControlName="name">
+        </mat-form-field>
+        <div><mat-checkbox formControlName="parallel">Run commands in parallel</mat-checkbox></div>
+        <app-multi-command formControlName="commands" title="Commands" addLabel="Add a command" [commandList]="commandList"></app-multi-command>
+    </form>
+
+    <button data-cy="command-composite-create" [disabled]="form.invalid" mat-flat-button color="primary" matTooltip="create new Composite Command" (click)="create()">Create</button>
+    <button mat-flat-button (click)="cancel()">Cancel</button>
+</div>

ui/src/app/forms/command-composite/command-composite.component.spec.ts

@@ -0,0 +1,23 @@
+import { ComponentFixture, TestBed } from '@angular/core/testing';
+
+import { CommandCompositeComponent } from './command-composite.component';
+
+describe('CommandCompositeComponent', () => {
+  let component: CommandCompositeComponent;
+  let fixture: ComponentFixture<CommandCompositeComponent>;
+
+  beforeEach(async () => {
+    await TestBed.configureTestingModule({
+      declarations: [ CommandCompositeComponent ]
+    })
+    .compileComponents();
+
+    fixture = TestBed.createComponent(CommandCompositeComponent);
+    component = fixture.componentInstance;
+    fixture.detectChanges();
+  });
+
+  it('should create', () => {
+    expect(component).toBeTruthy();
+  });
+});

ui/src/app/forms/command-composite/command-composite.component.ts

@@ -0,0 +1,50 @@
+import { Component, EventEmitter, Output } from '@angular/core';
+import { FormArray, FormControl, FormGroup, Validators } from '@angular/forms';
+import { StateService } from 'src/app/services/state.service';
+import { WasmGoService } from 'src/app/services/wasm-go.service';
+import { PATTERN_COMMAND_ID } from '../patterns';
+
+@Component({
+  selector: 'app-command-composite',
+  templateUrl: './command-composite.component.html',
+  styleUrls: ['./command-composite.component.css']
+})
+export class CommandCompositeComponent {
+  @Output() canceled = new EventEmitter<void>();
+
+  form: FormGroup;
+  commandList: string[] = [];
+
+  constructor(
+    private wasm: WasmGoService,
+    private state: StateService,
+  ) {
+    this.form = new FormGroup({
+      name: new FormControl("", [Validators.required, Validators.pattern(PATTERN_COMMAND_ID)]),
+      parallel: new FormControl(false),
+      commands: new FormControl([])
+    });
+
+    this.state.state.subscribe(async newContent => {
+      const commands = newContent?.commands;
+      if (commands == null) {
+        return
+      }
+      this.commandList = commands.map(command => command.name);
+    });
+
+  }
+
+  create() {
+    const result = this.wasm.addCompositeCommand(this.form.value["name"], this.form.value);
+    if (result.err != '') {
+      alert(result.err);
+    } else {
+      this.state.changeDevfileYaml(result.value);
+    }
+   }
+ 
+  cancel() {
+    this.canceled.emit();
+  }
+}

ui/src/app/forms/command-exec/command-exec.component.css

@@ -0,0 +1,3 @@
+.main { padding: 16px; }
+mat-form-field.full-width { width: 100%; }
+mat-form-field.mid-width { width: 50%; }

ui/src/app/forms/command-exec/command-exec.component.html

@@ -0,0 +1,36 @@
+<div class="main">
+    <h2>Add an Exec Command</h2>
+    <div class="description">An Exec command is a shell command executed into a container.</div>
+    <form [formGroup]="form">
+        <div><mat-checkbox formControlName="hotReloadCapable">Hot Reload Capable</mat-checkbox></div>
+        <mat-form-field appearance="outline" class="mid-width">
+            <mat-label><span>Name</span></mat-label>
+            <mat-error>Lowercase words separated by dashes. Ex: my-command</mat-error>
+            <input placeholder="unique name to identify the command" data-cy="command-exec-name" matInput formControlName="name">
+        </mat-form-field>
+        <mat-form-field appearance="outline" class="mid-width">
+            <mat-label><span>Command Line</span></mat-label>
+            <input placeholder="command line passed to the shell" data-cy="command-exec-command-line" matInput formControlName="commandLine">
+        </mat-form-field>
+        <mat-form-field appearance="outline" class="mid-width">
+            <mat-label><span>Working Dir</span></mat-label>
+            <input placeholder="Working directory of the command" data-cy="command-exec-working-dir" matInput formControlName="workingDir">
+        </mat-form-field>
+        <button data-cy="command-exec-projects-root" mat-button (click)="onProjectsRoot()">Work on Project's Root Directory</button>
+        <div>
+            <app-select-container 
+                formControlName="component" 
+                label="Container" 
+                [containers]="containerList"
+                (createNew)="onCreateNewContainer($event)"></app-select-container>
+        </div>
+    </form>
+
+    <app-container
+        *ngIf="showNewContainer"
+        (created)="onNewContainerCreated($event)"
+        ></app-container>
+
+    <button data-cy="command-exec-create" [disabled]="form.invalid" mat-flat-button color="primary" matTooltip="create new Exec Command" (click)="create()">Create</button>
+    <button mat-flat-button (click)="cancel()">Cancel</button>
+</div>

ui/src/app/forms/command-exec/command-exec.component.spec.ts

@@ -0,0 +1,23 @@
+import { ComponentFixture, TestBed } from '@angular/core/testing';
+
+import { CommandExecComponent } from './command-exec.component';
+
+describe('CommandExecComponent', () => {
+  let component: CommandExecComponent;
+  let fixture: ComponentFixture<CommandExecComponent>;
+
+  beforeEach(async () => {
+    await TestBed.configureTestingModule({
+      declarations: [ CommandExecComponent ]
+    })
+    .compileComponents();
+
+    fixture = TestBed.createComponent(CommandExecComponent);
+    component = fixture.componentInstance;
+    fixture.detectChanges();
+  });
+
+  it('should create', () => {
+    expect(component).toBeTruthy();
+  });
+});

ui/src/app/forms/command-exec/command-exec.component.ts

@@ -0,0 +1,76 @@
+import { Component, EventEmitter, Output } from '@angular/core';
+import { FormControl, FormGroup, Validators } from '@angular/forms';
+import { StateService } from 'src/app/services/state.service';
+import { Container, WasmGoService } from 'src/app/services/wasm-go.service';
+import { PATTERN_COMMAND_ID } from '../patterns';
+
+@Component({
+  selector: 'app-command-exec',
+  templateUrl: './command-exec.component.html',
+  styleUrls: ['./command-exec.component.css']
+})
+export class CommandExecComponent {
+  @Output() canceled = new EventEmitter<void>();
+
+  form: FormGroup;
+  containerList: string[] = [];
+  showNewContainer: boolean = false;
+  containerToCreate: Container | null = null;
+
+  constructor(
+    private wasm: WasmGoService,
+    private state: StateService,
+  ) {
+    this.form = new FormGroup({
+      name: new FormControl("", [Validators.required, Validators.pattern(PATTERN_COMMAND_ID)]),
+      component: new FormControl("", [Validators.required]),
+      commandLine: new FormControl("", [Validators.required]),
+      workingDir: new FormControl("", [Validators.required]),
+      hotReloadCapable: new FormControl(false),
+    });
+
+    this.state.state.subscribe(async newContent => {
+      const containers = newContent?.containers;
+      if (containers == null) {
+        return
+      }
+      this.containerList = containers.map(container => container.name);
+    });
+  }
+
+  create() {
+    if (this.containerToCreate != null && 
+        this.containerToCreate?.name == this.form.controls["component"].value) {
+      const result = this.wasm.addContainer(this.containerToCreate);
+      if (result.err != '') {
+        alert(result.err);
+        return;
+      }
+    }
+    const result = this.wasm.addExecCommand(this.form.value["name"], this.form.value);
+    if (result.err != '') {
+      alert(result.err);      
+    } else {
+      this.state.changeDevfileYaml(result.value);
+    }
+  }
+
+  cancel() {
+    this.canceled.emit();
+  }
+
+  onProjectsRoot() {
+    this.form.controls['workingDir'].setValue('${PROJECTS_ROOT}');
+  }
+
+  onCreateNewContainer(v: boolean) {
+    this.showNewContainer = v;
+  }
+
+  onNewContainerCreated(container: Container) {
+    this.containerList.push(container.name);
+    this.form.controls["component"].setValue(container.name);
+    this.showNewContainer = false;
+    this.containerToCreate = container;
+  }
+}

ui/src/app/forms/command-image/command-image.component.css

@@ -0,0 +1,3 @@
+.main { padding: 16px; }
+mat-form-field.full-width { width: 100%; }
+mat-form-field.mid-width { width: 50%; }

ui/src/app/forms/command-image/command-image.component.html

@@ -0,0 +1,24 @@
+<div class="main">
+    <h2>Add an Image Command</h2>
+    <div class="description">An Image command builds a container image and pushes it to a container registry.</div>
+    <form [formGroup]="form">
+        <mat-form-field appearance="outline" class="mid-width">
+            <mat-label><span>Name</span></mat-label>
+            <mat-error>Lowercase words separated by dashes. Ex: my-command</mat-error>
+            <input placeholder="unique name to identify the command" data-cy="command-image-name" matInput formControlName="name">
+        </mat-form-field>
+        <div><app-select-container
+            formControlName="component"
+            label="Image"
+            [containers]="imageList"
+            (createNew)="onCreateNewImage($event)"></app-select-container></div>
+    </form>
+
+    <app-image
+    *ngIf="showNewImage"
+    (created)="onNewImageCreated($event)"
+    ></app-image>
+
+    <button data-cy="command-image-create" [disabled]="form.invalid" mat-flat-button color="primary" matTooltip="create new Image Command" (click)="create()">Create</button>
+    <button mat-flat-button (click)="cancel()">Cancel</button>
+</div>

ui/src/app/forms/command-image/command-image.component.spec.ts

@@ -0,0 +1,23 @@
+import { ComponentFixture, TestBed } from '@angular/core/testing';
+
+import { CommandImageComponent } from './command-image.component';
+
+describe('CommandImageComponent', () => {
+  let component: CommandImageComponent;
+  let fixture: ComponentFixture<CommandImageComponent>;
+
+  beforeEach(async () => {
+    await TestBed.configureTestingModule({
+      declarations: [ CommandImageComponent ]
+    })
+    .compileComponents();
+
+    fixture = TestBed.createComponent(CommandImageComponent);
+    component = fixture.componentInstance;
+    fixture.detectChanges();
+  });
+
+  it('should create', () => {
+    expect(component).toBeTruthy();
+  });
+});

ui/src/app/forms/command-image/command-image.component.ts

@@ -0,0 +1,70 @@
+import { Component, EventEmitter, Output } from '@angular/core';
+import { FormControl, FormGroup, Validators } from '@angular/forms';
+import { StateService } from 'src/app/services/state.service';
+import { Image, WasmGoService } from 'src/app/services/wasm-go.service';
+import { PATTERN_COMMAND_ID } from '../patterns';
+
+@Component({
+  selector: 'app-command-image',
+  templateUrl: './command-image.component.html',
+  styleUrls: ['./command-image.component.css']
+})
+export class CommandImageComponent {
+  @Output() canceled = new EventEmitter<void>();
+
+  form: FormGroup;
+  imageList: string[] = [];
+  showNewImage: boolean = false;
+  imageToCreate: Image | null = null;
+
+  constructor(
+    private wasm: WasmGoService,
+    private state: StateService,
+  ) {
+    this.form = new FormGroup({
+      name: new FormControl("", [Validators.required, Validators.pattern(PATTERN_COMMAND_ID)]),
+      component: new FormControl("", [Validators.required]),
+    });
+
+    this.state.state.subscribe(async newContent => {
+      const images = newContent?.images;
+      if (images == null) {
+        return
+      }
+      this.imageList = images.map(image => image.name);
+    });
+  }
+
+  create() {
+    if (this.imageToCreate != null && 
+      this.imageToCreate?.name == this.form.controls["component"].value) {
+      const result = this.wasm.addImage(this.imageToCreate);
+      if (result.err != '') {
+        alert(result.err);
+        return;
+      }
+    }
+
+    const result = this.wasm.addApplyCommand(this.form.value["name"], this.form.value);
+    if (result.err != '') {
+      alert(result.err);
+    } else {
+      this.state.changeDevfileYaml(result.value);
+    }
+  }
+
+  cancel() {
+    this.canceled.emit();
+  }
+
+  onCreateNewImage(v: boolean) {
+    this.showNewImage = v;
+  }
+
+  onNewImageCreated(image: Image) {
+    this.imageList.push(image.name);
+    this.form.controls["component"].setValue(image.name);
+    this.showNewImage = false;
+    this.imageToCreate = image;
+  }
+}

ui/src/app/forms/container/container.component.css

@@ -0,0 +1,3 @@
+.main { padding: 16px; }
+mat-form-field.full-width { width: 100%; }
+mat-form-field.mid-width { width: 50%; }

ui/src/app/forms/container/container.component.html

@@ -0,0 +1,40 @@
+<div class="main">
+    <h2>Add a new container</h2>
+    <div class="description">A Container is used to execute shell commands into a specific environment. The entrypoint of the container must be a non-terminating command. You can use an image pulled from a registry or an image built by an Image command.</div>
+    <form [formGroup]="form">
+        <mat-form-field appearance="outline" class="mid-width">
+            <mat-label><span>Name</span></mat-label>
+            <mat-error>Lowercase words separated by dashes. Ex: my-container</mat-error>
+            <input placeholder="unique name to identify the container" data-cy="container-name" matInput formControlName="name">
+        </mat-form-field>
+        <mat-form-field appearance="outline" class="mid-width">
+            <mat-label><span>Image</span></mat-label>
+            <input placeholder="Image to start the container" data-cy="container-image" matInput formControlName="image">
+        </mat-form-field>
+        <app-multi-text formControlName="command" title="Command" label="Command" addLabel="Add command"></app-multi-text>
+        <app-multi-text formControlName="args" title="Arguments to command" label="Arg" addLabel="Add arg"></app-multi-text>
+        <mat-form-field appearance="outline" class="mid-width">
+            <mat-label><span>Memory Request</span></mat-label>
+            <mat-error>{{quantityErrMsgMemory}}</mat-error>
+            <input placeholder="memory requested for the container. Ex: 1Gi" data-cy="container-memory-request" matInput formControlName="memoryRequest">
+        </mat-form-field>
+        <mat-form-field appearance="outline" class="mid-width">
+            <mat-label><span>Memory Limit</span></mat-label>
+            <mat-error>{{quantityErrMsgMemory}}</mat-error>
+            <input placeholder="memory limit for the container. Ex: 1Gi" data-cy="container-memory-limit" matInput formControlName="memoryLimit">
+        </mat-form-field>
+        <mat-form-field appearance="outline" class="mid-width">
+            <mat-label><span>CPU Request</span></mat-label>
+            <mat-error>{{quantityErrMsgCPU}}</mat-error>
+            <input placeholder="CPU requested for the container. Ex: 500m" data-cy="container-cpu-request" matInput formControlName="cpuRequest">
+        </mat-form-field>
+        <mat-form-field appearance="outline" class="mid-width">
+            <mat-label><span>CPU Limit</span></mat-label>
+            <mat-error>{{quantityErrMsgCPU}}</mat-error>
+            <input placeholder="CPU limit for the container. Ex: 1" data-cy="container-cpu-limit" matInput formControlName="cpuLimit">
+        </mat-form-field>
+    </form>
+
+    <button data-cy="container-create" [disabled]="form.invalid" mat-flat-button color="primary" matTooltip="create new container" (click)="create()">Create</button>
+    <button *ngIf="cancelable" mat-flat-button (click)="cancel()">Cancel</button>
+</div>

ui/src/app/forms/container/container.component.spec.ts

@@ -0,0 +1,23 @@
+import { ComponentFixture, TestBed } from '@angular/core/testing';
+
+import { ContainerComponent } from './container.component';
+
+describe('ContainerComponent', () => {
+  let component: ContainerComponent;
+  let fixture: ComponentFixture<ContainerComponent>;
+
+  beforeEach(async () => {
+    await TestBed.configureTestingModule({
+      declarations: [ ContainerComponent ]
+    })
+    .compileComponents();
+
+    fixture = TestBed.createComponent(ContainerComponent);
+    component = fixture.componentInstance;
+    fixture.detectChanges();
+  });
+
+  it('should create', () => {
+    expect(component).toBeTruthy();
+  });
+});

ui/src/app/forms/container/container.component.ts

@@ -0,0 +1,59 @@
+import { Component, EventEmitter, Input, Output } from '@angular/core';
+import { AbstractControl, FormControl, FormGroup, ValidationErrors, ValidatorFn, Validators } from '@angular/forms';
+import { PATTERN_COMPONENT_ID } from '../patterns';
+import { Container, WasmGoService } from 'src/app/services/wasm-go.service';
+
+@Component({
+  selector: 'app-container',
+  templateUrl: './container.component.html',
+  styleUrls: ['./container.component.css']
+})
+export class ContainerComponent {
+  @Input() cancelable: boolean = false;
+  @Output() canceled = new EventEmitter<void>();
+  @Output() created = new EventEmitter<Container>();
+
+  form: FormGroup;
+
+  quantityErrMsgMemory = 'Numeric value, with optional unit Ki, Mi, Gi, Ti, Pi, Ei';
+  quantityErrMsgCPU = 'Numeric value, with optional unit m, k, M, G, T, P, E';
+
+  constructor(
+    private wasm: WasmGoService,
+  ) {
+    this.form = new FormGroup({
+      name: new FormControl("", [Validators.required, Validators.pattern(PATTERN_COMPONENT_ID)]),
+      image: new FormControl("", [Validators.required]),
+      command: new FormControl([]),
+      args: new FormControl([]),
+      memoryRequest: new FormControl("", [this.isQuantity()]),
+      memoryLimit: new FormControl("", [this.isQuantity()]),
+      cpuRequest: new FormControl("", [this.isQuantity()]),
+      cpuLimit: new FormControl("", [this.isQuantity()]),
+    })
+  }
+
+  create() {
+    this.created.emit(this.form.value);
+  }
+
+  cancel() {
+    this.canceled.emit();
+  }
+
+  isQuantity():  ValidatorFn {
+    return (control: AbstractControl): ValidationErrors | null => {
+      const val = control.value;
+      if (val == '') {
+        return null;
+      }
+      const valid = this.wasm.isQuantityValid(val);
+      if (!valid) {
+        return {
+          "isQuantity": false,
+        }
+      }
+      return null;
+    };
+  }   
+}

ui/src/app/forms/image/image.component.css

@@ -0,0 +1,3 @@
+.main { padding: 16px; }
+mat-form-field.full-width { width: 100%; }
+mat-form-field.mid-width { width: 50%; }

ui/src/app/forms/image/image.component.html

@@ -0,0 +1,29 @@
+<div class="main">
+    <h2>Add a new image</h2>
+    <div class="description">An Image defines how to build a container image.</div>
+    <form [formGroup]="form">
+        <mat-form-field appearance="outline" class="mid-width">
+            <mat-label><span>Name</span></mat-label>
+            <mat-error>Lowercase words separated by dashes. Ex: my-image</mat-error>
+            <input placeholder="unique name to identify the image" data-cy="image-name" matInput formControlName="name">
+        </mat-form-field>
+        <mat-form-field appearance="outline" class="mid-width">
+            <mat-label><span>Image Name</span></mat-label>
+            <input placeholder="Reference to a container image" data-cy="image-image-name" matInput formControlName="imageName">
+        </mat-form-field>
+        <app-multi-text formControlName="args" title="Build Args" label="Arg" addLabel="Add Build Arg"></app-multi-text>
+        <mat-form-field appearance="outline" class="mid-width">
+            <mat-label><span>Build Context</span></mat-label>
+            <input placeholder="Directory from which the build will be executed" data-cy="image-build-context" matInput formControlName="buildContext">
+        </mat-form-field>
+        <mat-form-field appearance="outline" class="mid-width">
+            <mat-label><span>Dockerfile URI</span></mat-label>
+            <input placeholder="Dockerfile used to build the image" data-cy="image-dockerfile-uri" matInput formControlName="uri">
+        </mat-form-field>
+        <mat-checkbox formControlName="rootRequired">Root Required</mat-checkbox>    
+
+    </form>
+
+    <button data-cy="image-create" [disabled]="form.invalid" mat-flat-button color="primary" matTooltip="create new image" (click)="create()">Create</button>
+    <button *ngIf="cancelable" mat-flat-button (click)="cancel()">Cancel</button>
+</div>

ui/src/app/forms/image/image.component.spec.ts

@@ -0,0 +1,23 @@
+import { ComponentFixture, TestBed } from '@angular/core/testing';
+
+import { ImageComponent } from './image.component';
+
+describe('ImageComponent', () => {
+  let component: ImageComponent;
+  let fixture: ComponentFixture<ImageComponent>;
+
+  beforeEach(async () => {
+    await TestBed.configureTestingModule({
+      declarations: [ ImageComponent ]
+    })
+    .compileComponents();
+
+    fixture = TestBed.createComponent(ImageComponent);
+    component = fixture.componentInstance;
+    fixture.detectChanges();
+  });
+
+  it('should create', () => {
+    expect(component).toBeTruthy();
+  });
+});

ui/src/app/forms/image/image.component.ts

@@ -0,0 +1,36 @@
+import { Component, EventEmitter, Input, Output } from '@angular/core';
+import { FormControl, FormGroup, Validators } from '@angular/forms';
+import { Image } from 'src/app/services/wasm-go.service';
+import { PATTERN_COMPONENT_ID } from '../patterns';
+
+@Component({
+  selector: 'app-image',
+  templateUrl: './image.component.html',
+  styleUrls: ['./image.component.css']
+})
+export class ImageComponent {
+  @Input() cancelable: boolean = false;
+  @Output() canceled = new EventEmitter<void>();
+  @Output() created = new EventEmitter<Image>();
+
+  form: FormGroup;
+
+  constructor() {
+    this.form = new FormGroup({
+      name: new FormControl("", [Validators.required, Validators.pattern(PATTERN_COMPONENT_ID)]),
+      imageName: new FormControl("", [Validators.required]),
+      args: new FormControl([]),
+      buildContext: new FormControl(""),
+      rootRequired: new FormControl(false),
+      uri: new FormControl("", [Validators.required]),
+    })
+  }
+
+  create() {
+    this.created.emit(this.form.value);
+  }
+
+  cancel() {
+    this.canceled.emit();
+  }
+}

ui/src/app/forms/metadata/metadata.component.css

@@ -0,0 +1,3 @@
+.main { padding: 16px; }
+mat-form-field.full-width { width: 100%; }
+mat-form-field.mid-width { width: 50%; }

ui/src/app/forms/metadata/metadata.component.html

@@ -0,0 +1,68 @@
+<div class="main">
+    <form [formGroup]="form">
+
+        <mat-form-field appearance="outline" class="mid-width">
+            <mat-label>Name</mat-label>
+            <input data-cy="metadata-name" placeholder="Unique name to identify the devfile" matInput formControlName="name">
+        </mat-form-field>
+        <mat-form-field appearance="outline" class="mid-width">
+            <mat-label>Version</mat-label>
+            <mat-error>Examples: 1.0.4, 1.4.7-alpha1</mat-error>
+            <input placeholder="Version of the devfile, semver-compatible" matInput formControlName="version">
+        </mat-form-field>
+
+        <mat-form-field appearance="outline" class="full-width">
+            <mat-label>Display Name</mat-label>
+            <input placeholder="Name to display instead of the unique name" matInput formControlName="displayName">
+        </mat-form-field>
+
+        <mat-form-field appearance="outline" class="full-width">
+            <mat-label>Description</mat-label>
+            <textarea matInput formControlName="description" rows="4"></textarea>
+        </mat-form-field>
+
+        <mat-form-field appearance="outline" class="mid-width">
+            <mat-label>Tags (comma-speparated)</mat-label>
+            <input placeholder="Tags to help find the devfile in a registry" matInput formControlName="tags">
+        </mat-form-field>
+        <mat-form-field appearance="outline" class="mid-width">
+            <mat-label>Architectures (comma-separated)</mat-label>
+            <input placeholder="Ex: amd64,arm64,ppc64le,s390x" matInput formControlName="architectures">
+        </mat-form-field>
+
+        <mat-form-field appearance="outline" class="mid-width">
+            <mat-label>Icon</mat-label>
+            <input placeholder="Can be a URI or a relative path in the project" matInput formControlName="icon">
+        </mat-form-field>
+
+        <mat-form-field appearance="outline" class="mid-width">
+            <mat-label>Global Memory Limit</mat-label>
+            <input placeholder="Informative limit of memory used by the devfile. Ex: 1Gi" matInput formControlName="globalMemoryLimit">
+        </mat-form-field>
+
+        <mat-form-field appearance="outline" class="mid-width">
+            <mat-label>Project Type</mat-label>
+            <input placeholder="Ex: Framework of the project" matInput formControlName="projectType">
+        </mat-form-field>
+        <mat-form-field appearance="outline" class="mid-width">
+            <mat-label>Language</mat-label>
+            <input placeholder="Language of the project" matInput formControlName="language">
+        </mat-form-field>
+
+        <mat-form-field appearance="outline" class="mid-width">
+            <mat-label>Website</mat-label>
+            <input placeholder="Official website of the devfile" matInput formControlName="website">
+        </mat-form-field>
+        <mat-form-field appearance="outline" class="mid-width">
+            <mat-label>Provider</mat-label>
+            <input placeholder="Information about the provider of the devfile" matInput formControlName="provider">
+        </mat-form-field>
+
+        <mat-form-field appearance="outline" class="full-width">
+            <mat-label>Support URL</mat-label>
+            <input placeholder="Link to a page providing support information" matInput formControlName="supportUrl">
+        </mat-form-field>
+    </form>
+
+    <button [disabled]="form.invalid" mat-flat-button color="primary" (click)="onSave()">Save</button>
+</div>

ui/src/app/forms/metadata/metadata.component.spec.ts

@@ -0,0 +1,23 @@
+import { ComponentFixture, TestBed } from '@angular/core/testing';
+
+import { MetadataComponent } from './metadata.component';
+
+describe('MetadataComponent', () => {
+  let component: MetadataComponent;
+  let fixture: ComponentFixture<MetadataComponent>;
+
+  beforeEach(async () => {
+    await TestBed.configureTestingModule({
+      declarations: [ MetadataComponent ]
+    })
+    .compileComponents();
+
+    fixture = TestBed.createComponent(MetadataComponent);
+    component = fixture.componentInstance;
+    fixture.detectChanges();
+  });
+
+  it('should create', () => {
+    expect(component).toBeTruthy();
+  });
+});

ui/src/app/forms/metadata/metadata.component.ts

@@ -0,0 +1,56 @@
+import { Component, OnInit } from '@angular/core';
+import { FormControl, FormGroup, Validators } from '@angular/forms';
+import { StateService } from 'src/app/services/state.service';
+import { WasmGoService } from 'src/app/services/wasm-go.service';
+
+const semverPattern = `^([0-9]+)\\.([0-9]+)\\.([0-9]+)(\\-[0-9a-z-]+(\\.[0-9a-z-]+)*)?(\\+[0-9A-Za-z-]+(\\.[0-9A-Za-z-]+)*)?$`;
+
+@Component({
+  selector: 'app-metadata',
+  templateUrl: './metadata.component.html',
+  styleUrls: ['./metadata.component.css']
+})
+export class MetadataComponent implements OnInit {
+
+  form: FormGroup;
+
+  constructor(
+    private wasm: WasmGoService,
+    private state: StateService,
+  ) {
+    this.form = new FormGroup({
+      name: new FormControl(''),
+      version: new FormControl('', Validators.pattern(semverPattern)),
+      displayName: new FormControl(''),
+      description: new FormControl(''),
+      tags: new FormControl(""),
+      architectures: new FormControl(""),
+      icon: new FormControl(""),
+      globalMemoryLimit: new FormControl(""),
+      projectType: new FormControl(""),
+      language: new FormControl(""),
+      website: new FormControl(""),
+      provider: new FormControl(""),
+      supportUrl: new FormControl(""),        
+    });
+  }
+
+  ngOnInit() {
+    this.state.state.subscribe(async newContent => {
+      const metadata = newContent?.metadata;
+      if (metadata == null) {
+        return
+      }
+      this.form.setValue(metadata);
+    });
+  }
+
+  onSave() {
+    const result = this.wasm.setMetadata(this.form.value);
+    if (result.err != '') {
+      alert(result.err);
+    } else {
+      this.state.changeDevfileYaml(result.value);
+    }
+  }
+}

ui/src/app/forms/patterns.ts

@@ -0,0 +1,2 @@
+export const PATTERN_COMMAND_ID = "^[a-z0-9]([-a-z0-9]*[a-z0-9])?$";
+export const PATTERN_COMPONENT_ID = "^[a-z0-9]([-a-z0-9]*[a-z0-9])?$";

ui/src/app/forms/resource/resource.component.css

@@ -0,0 +1,4 @@
+.main { padding: 16px; }
+mat-form-field.full-width { width: 100%; }
+mat-form-field.mid-width { width: 50%; }
+span.toggleUriInlined { margin-left: 16px; }

ui/src/app/forms/resource/resource.component.html

@@ -0,0 +1,32 @@
+<div class="main">
+    <h2>Add a new resource</h2>
+    <div class="description">A Resource defines a Kubernetes resource. Its definition can be given either by a URI pointing to a manifest file or by an inlined YAML manifest.</div>
+    <form [formGroup]="form">
+        <mat-form-field appearance="outline" class="mid-width">
+            <mat-label><span>Name</span></mat-label>
+            <mat-error>Lowercase words separated by dashes. Ex: my-resource</mat-error>
+            <input placeholder="unique name to identify the resource" data-cy="resource-name" matInput formControlName="name">
+        </mat-form-field>
+    
+        <span class="toggleUriInlined">
+            <mat-button-toggle-group (change)="changeUriOrInlined($event.value)">
+                <mat-button-toggle data-cy="resource-toogle-uri" value="uri" checked>Specify URI</mat-button-toggle>
+                <mat-button-toggle data-cy="resource-toggle-inlined" value="inlined">Inlined content</mat-button-toggle>
+            </mat-button-toggle-group>
+        </span>
+
+        <mat-form-field *ngIf="uriOrInlined=='uri'" appearance="outline" class="full-width">
+            <mat-label><span>URI</span></mat-label>
+            <input placeholder="Reference to a YAML manifest" data-cy="resource-uri" matInput formControlName="uri">
+        </mat-form-field>
+    
+        <mat-form-field  *ngIf="uriOrInlined=='inlined'" appearance="outline" class="full-width">
+            <mat-label>YAML Manifest</mat-label>
+            <textarea data-cy="resource-manifest" matInput formControlName="inlined" rows="8"></textarea>
+        </mat-form-field>
+    
+    </form>
+
+    <button data-cy="resource-create" [disabled]="form.invalid" mat-flat-button color="primary" matTooltip="create new resource" (click)="create()">Create</button>
+    <button *ngIf="cancelable" mat-flat-button (click)="cancel()">Cancel</button>
+</div>

ui/src/app/forms/resource/resource.component.spec.ts

@@ -0,0 +1,23 @@
+import { ComponentFixture, TestBed } from '@angular/core/testing';
+
+import { ResourceComponent } from './resource.component';
+
+describe('ResourceComponent', () => {
+  let component: ResourceComponent;
+  let fixture: ComponentFixture<ResourceComponent>;
+
+  beforeEach(async () => {
+    await TestBed.configureTestingModule({
+      declarations: [ ResourceComponent ]
+    })
+    .compileComponents();
+
+    fixture = TestBed.createComponent(ResourceComponent);
+    component = fixture.componentInstance;
+    fixture.detectChanges();
+  });
+
+  it('should create', () => {
+    expect(component).toBeTruthy();
+  });
+});

ui/src/app/forms/resource/resource.component.ts

@@ -0,0 +1,51 @@
+import { Component, EventEmitter, Input, Output } from '@angular/core';
+import { FormControl, FormGroup, Validators } from '@angular/forms';
+import { ClusterResource } from 'src/app/services/wasm-go.service';
+import { PATTERN_COMPONENT_ID } from '../patterns';
+
+@Component({
+  selector: 'app-resource',
+  templateUrl: './resource.component.html',
+  styleUrls: ['./resource.component.css']
+})
+export class ResourceComponent {
+  @Input() cancelable: boolean = false;
+  @Output() canceled = new EventEmitter<void>();
+  @Output() created = new EventEmitter<ClusterResource>();
+
+  form: FormGroup;
+  uriOrInlined: string = 'uri';
+
+  constructor() {
+    this.form = new FormGroup({
+      name: new FormControl("", [Validators.required, Validators.pattern(PATTERN_COMPONENT_ID)]),
+      uri: new FormControl("", [Validators.required]),
+      inlined: new FormControl("", []),
+    })
+  }
+
+  changeUriOrInlined(value: string) {
+    this.uriOrInlined = value;
+    if (this.uriOrInlined == 'uri') {
+      this.form.controls['inlined'].removeValidators(Validators.required);
+      this.form.controls['inlined'].setValue('');
+      
+      this.form.controls['uri']?.addValidators(Validators.required);
+    } else if (this.uriOrInlined == 'inlined') {
+      this.form.controls['uri']?.removeValidators(Validators.required);
+      this.form.controls['uri'].setValue('');
+
+      this.form.controls['inlined']?.setValidators(Validators.required);
+    }
+    this.form.controls['uri'].updateValueAndValidity()
+    this.form.controls['inlined'].updateValueAndValidity()
+  }
+
+  create() {
+    this.created.emit(this.form.value);
+  }
+
+  cancel() {
+    this.canceled.emit();    
+  }
+}

ui/src/app/lists/commands-list/commands-list.component.css

@@ -0,0 +1,29 @@
+mat-card-header.with-right-content {
+    display: block;
+}
+
+.space-between {
+    display: flex;
+    justify-content: space-between;
+    width: 100%;
+}
+
+mat-card { margin-bottom: 16px; }
+mat-card-content { padding: 16px; }
+.command {
+    border: 1px solid #ddd;
+    border-radius: 4px;
+    background-color: #eee;
+    padding: 4px;
+    margin: 4px;
+}
+.parallel-command {
+    margin: 8px;
+}
+.serial-commands {
+    margin: 4px;
+}
+div.nothing-here {
+    margin: 0 4px 16px 4px;
+    color: #00000054;
+}

ui/src/app/lists/commands-list/commands-list.component.html

@@ -0,0 +1,109 @@
+<div class="nothing-here" *ngIf="!getCommandsByKind(commands, kind)?.length && kind != ''">No {{kind}} commands yet. You can create a command then drag&drop it here</div>
+<div class="nothing-here" *ngIf="!getCommandsByKind(commands, kind)?.length && kind == ''">No generic commands yet. New commands will appear here</div>
+<ng-container *ngFor="let command of commands">
+    <mat-card data-cy="command-info" cdkDrag [cdkDragDisabled]="dragDisabled" *ngIf="command.group == kind">
+        <mat-card-header class="with-right-content colored-title">
+                <div class="space-between">
+                    <mat-card-title>
+                        {{command.name}}
+                    </mat-card-title>
+                    <mat-checkbox 
+                        *ngIf="command.group != ''" 
+                        [checked]="command.default" 
+                        (change)="toggleDefault($event, command.name, command.group)"
+                    >Default {{kind}} command</mat-checkbox>
+                </div>
+            <div>
+                <mat-card-subtitle *ngIf="command.type == 'exec'">Exec Command</mat-card-subtitle>
+                <mat-card-subtitle *ngIf="command.type == 'apply'">Apply Command</mat-card-subtitle>
+                <mat-card-subtitle *ngIf="command.type == 'image'">Image Command</mat-card-subtitle>
+                <mat-card-subtitle *ngIf="command.type == 'composite'">Composite Command</mat-card-subtitle>
+            </div>
+        </mat-card-header>
+
+        <mat-card-content>
+            
+
+            <ng-container *ngIf="command.type == 'exec'">
+                <table class="aligned">
+                    <tr>
+                        <td>Is Hot Reload Capable:</td>
+                        <td>
+                            <span *ngIf="command.exec?.hotReloadCapable">Yes</span>
+                            <span *ngIf="!command.exec?.hotReloadCapable">No</span>
+                        </td>
+                    </tr>
+                    <tr>
+                        <td>Command Line:</td>
+                        <td><code>{{command.exec?.commandLine}}</code></td>
+                    </tr>
+                    <tr>
+                        <td>Working Directory:</td>
+                        <td><code>{{command.exec?.workingDir}}</code></td>
+                    </tr>
+                    <tr>
+                        <td>Container:</td>
+                        <td><mat-chip disableRipple>
+                            <mat-icon matChipAvatar class="material-icons-outlined">width_normal</mat-icon>
+                            {{command.exec?.component}}
+                        </mat-chip></td>
+                    </tr>
+                </table>
+            </ng-container>
+
+            <ng-container *ngIf="command.type == 'apply'">
+                <table class="aligned">
+                    <tr>
+                        <td>Cluster resource:</td>
+                        <td><mat-chip disableRipple>
+                                <mat-icon matChipAvatar class="material-icons-outlined">description</mat-icon>
+                                {{command.apply?.component}}
+                            </mat-chip></td>
+                    </tr>
+                </table>
+            </ng-container>
+
+            <ng-container *ngIf="command.type == 'image'">
+                <table class="aligned">
+                    <tr>
+                        <td>Image:</td>
+                        <td><mat-chip disableRipple>
+                            <mat-icon matChipAvatar class="material-icons-outlined">image</mat-icon>
+                            {{command.image?.component}}
+                        </mat-chip></td>
+                    </tr>
+                </table>
+            </ng-container>
+
+            <ng-container *ngIf="command.type == 'composite'">
+                <table class="aligned">
+                    <tr>
+                        <td>Scheduling:</td>
+                        <td>
+                            <div *ngIf="command.composite?.parallel">Commands executed in parallel</div>
+                            <div *ngIf="!command.composite?.parallel">Commands executed serially</div>
+                        </td>
+                    </tr>
+                    <tr>
+                        <td>Commands:</td>
+                        <td>
+                            <mat-chip-set [class.mat-mdc-chip-set-stacked]="command.composite?.parallel">
+                                <mat-chip disableRipple *ngFor="let command of command.composite?.commands">
+                                    <mat-icon matChipAvatar class="material-icons-outlined">code</mat-icon>
+                                    {{command}}
+                                    </mat-chip>
+                            </mat-chip-set>
+                        </td>
+                    </tr>
+                </table>
+
+            </ng-container>
+
+        </mat-card-content>
+
+        <mat-card-actions>
+            <button mat-button color="warn" (click)="delete(command.name)">Delete</button>
+        </mat-card-actions>
+
+    </mat-card>
+</ng-container>

ui/src/app/lists/commands-list/commands-list.component.spec.ts

@@ -0,0 +1,23 @@
+import { ComponentFixture, TestBed } from '@angular/core/testing';
+
+import { CommandsListComponent } from './commands-list.component';
+
+describe('CommandsListComponent', () => {
+  let component: CommandsListComponent;
+  let fixture: ComponentFixture<CommandsListComponent>;
+
+  beforeEach(async () => {
+    await TestBed.configureTestingModule({
+      declarations: [ CommandsListComponent ]
+    })
+    .compileComponents();
+
+    fixture = TestBed.createComponent(CommandsListComponent);
+    component = fixture.componentInstance;
+    fixture.detectChanges();
+  });
+
+  it('should create', () => {
+    expect(component).toBeTruthy();
+  });
+});

ui/src/app/lists/commands-list/commands-list.component.ts

@@ -0,0 +1,62 @@
+import { Component, EventEmitter, Input } from '@angular/core';
+import { MatCheckboxChange } from '@angular/material/checkbox';
+import { MatSnackBar } from '@angular/material/snack-bar';
+import { StateService } from 'src/app/services/state.service';
+import { Command, WasmGoService } from 'src/app/services/wasm-go.service';
+
+@Component({
+  selector: 'app-commands-list',
+  templateUrl: './commands-list.component.html',
+  styleUrls: ['./commands-list.component.css']
+})
+export class CommandsListComponent {
+  @Input() commands: Command[] | undefined;
+  @Input() kind: string = "";
+  @Input() dragDisabled: boolean = true;
+
+  constructor(
+    private wasm: WasmGoService,
+    private state: StateService,
+  ) {}
+
+  toggleDefault(event: MatCheckboxChange, command: string, group: string) {
+    if (event.checked) {
+      this.setDefault(command, group);
+    } else {
+      this.unsetDefault(command);
+    }
+  }
+
+  setDefault(command: string, group: string) {
+    const result = this.wasm.setDefaultCommand(command, group);
+    if (result.err != '') {
+      alert(result.err);
+    } else {
+      this.state.changeDevfileYaml(result.value);
+    }
+  }
+
+  unsetDefault(command: string) {
+    const result = this.wasm.unsetDefaultCommand(command);
+    if (result.err != '') {
+      alert(result.err);
+    } else {
+      this.state.changeDevfileYaml(result.value);
+    }
+  }
+
+  getCommandsByKind(commands: Command[] | undefined, kind: string ): Command[] | undefined {
+    return commands?.filter((c: Command) => c.group == kind);
+  }
+
+  delete(command: string) {
+    if(confirm('You will delete the command "'+command+'". Continue?')) {
+      const result = this.wasm.deleteCommand(command);
+      if (result.err != '') {
+        alert(result.err);
+      } else {
+        this.state.changeDevfileYaml(result.value);
+      }
+    }
+  }
+}

ui/src/app/services/mermaid.service.spec.ts

@@ -0,0 +1,16 @@
+import { TestBed } from '@angular/core/testing';
+
+import { MermaidService } from './mermaid.service';
+
+describe('MermaidService', () => {
+  let service: MermaidService;
+
+  beforeEach(() => {
+    TestBed.configureTestingModule({});
+    service = TestBed.inject(MermaidService);
+  });
+
+  it('should be created', () => {
+    expect(service).toBeTruthy();
+  });
+});

ui/src/app/services/mermaid.service.ts

@@ -0,0 +1,15 @@
+import { Injectable } from '@angular/core';
+import mermaid from 'mermaid';
+
+@Injectable({
+  providedIn: 'root'
+})
+export class MermaidService {
+
+  constructor() { }
+
+  async getMermaidAsSVG(definition: string): Promise<string> {
+    const { svg } = await mermaid.render('rendered', definition);
+    return svg;
+  }
+}

ui/src/app/services/state.service.spec.ts

@@ -0,0 +1,16 @@
+import { TestBed } from '@angular/core/testing';
+
+import { StateService } from './state.service';
+
+describe('StateService', () => {
+  let service: StateService;
+
+  beforeEach(() => {
+    TestBed.configureTestingModule({});
+    service = TestBed.inject(StateService);
+  });
+
+  it('should be created', () => {
+    expect(service).toBeTruthy();
+  });
+});

ui/src/app/services/state.service.ts

@@ -0,0 +1,35 @@
+import { Injectable } from '@angular/core';
+
+import { BehaviorSubject } from 'rxjs';
+
+import { ResultValue } from './wasm-go.service';
+
+@Injectable({
+  providedIn: 'root'
+})
+export class StateService {
+
+  private _state = new BehaviorSubject<ResultValue | null>(null);
+  public state = this._state.asObservable(); 
+
+  changeDevfileYaml(newValue: ResultValue) {
+    localStorage.setItem("devfile", newValue.content);
+    this._state.next(newValue);
+  }
+
+  resetDevfile() {
+    localStorage.removeItem('devfile');
+  }
+
+  getDevfile(): string | null {
+    return localStorage.getItem("devfile");
+  }
+
+  getDragAndDropEnabled(): boolean {
+    return localStorage.getItem("dragAndDropEnabled") == "true";
+  }
+
+  saveDragAndDropEnabled(enabled: boolean) {
+    return localStorage.setItem("dragAndDropEnabled", enabled ? "true" : "false");
+  }
+}

ui/src/app/services/wasm-go.service.spec.ts

@@ -0,0 +1,16 @@
+import { TestBed } from '@angular/core/testing';
+
+import { WasmGoService } from './wasm-go.service';
+
+describe('WasmGoService', () => {
+  let service: WasmGoService;
+
+  beforeEach(() => {
+    TestBed.configureTestingModule({});
+    service = TestBed.inject(WasmGoService);
+  });
+
+  it('should be created', () => {
+    expect(service).toBeTruthy();
+  });
+});

ui/src/app/services/wasm-go.service.ts

@@ -0,0 +1,241 @@
+import { Injectable } from '@angular/core';
+
+type ChartResult = {
+  err: string;
+  value: any;
+};
+
+type Result = {
+  err: string;
+  value: ResultValue;
+};
+
+export type ResultValue = {
+  content: string;
+  metadata: Metadata;
+  commands: Command[];
+  events: Events;
+  containers: Container[];
+  images: Image[];
+  resources: ClusterResource[];
+};
+
+export type Metadata = {
+  name: string | null;
+  version: string | null;
+  displayName: string | null;
+  description: string | null;
+  tags: string | null;
+  architectures: string | null;
+  icon: string | null;
+  globalMemoryLimit: string | null;
+  projectType: string | null;
+  language: string | null;
+  website: string | null;
+  provider: string | null;
+  supportUrl: string | null;
+};
+
+export type Command = {
+  name: string;
+  group: string;
+  default: boolean;
+  type: "exec" | "apply" | "image" | "composite";
+  exec: ExecCommand | undefined;
+  apply: ApplyCommand | undefined;
+  image: ImageCommand | undefined;
+  composite: CompositeCommand | undefined;
+};
+
+export type Events = {
+  preStart: string[];
+  postStart: string[];
+  preStop: string[];
+  postStop: string[];
+};
+
+export type ExecCommand = {
+  component: string;
+  commandLine: string;
+  workingDir: string;
+  hotReloadCapable: boolean;
+};
+
+export type ApplyCommand = {
+  component: string;
+};
+
+export type ImageCommand = {
+  component: string;
+};
+
+export type CompositeCommand = {
+  commands: string[];
+  parallel: boolean;
+};
+
+export type Container = {
+  name: string;
+  image: string;
+  command: string[];
+  args: string[];
+  memoryRequest: string;
+  memoryLimit: string;
+  cpuRequest: string;
+  cpuLimit: string;
+};
+
+export type Image = {
+  name: string;
+  imageName: string;
+  args: string[];
+  buildContext: string;
+  rootRequired: boolean;
+  uri: string;
+};
+
+export type ClusterResource = {
+  name: string;
+  inlined: string;
+  uri: string;
+};
+
+declare const addContainer: (name: string, image: string, command: string[], args: string[], memReq: string, memLimit: string, cpuReq: string, cpuLimit: string) => Result;
+declare const addImage: (name: string, imageName: string, args: string[], buildContext: string, rootRequired: boolean, uri: string) => Result;
+declare const addResource: (name: string, inlined: string, uri: string) => Result;
+declare const addExecCommand: (name: string, component: string, commmandLine: string, workingDir: string, hotReloadCapable: boolean) => Result;
+declare const addApplyCommand: (name: string, component: string) => Result;
+declare const addCompositeCommand: (name: string, parallel: boolean, commands: string[]) => Result;
+declare const getFlowChart: () => ChartResult;
+declare const setDevfileContent: (devfile: string) => Result;
+declare const setMetadata: (metadata: Metadata) => Result;
+declare const moveCommand: (previousKind: string, newKind: string, previousIndex: number, newIndex: number) => Result;
+declare const setDefaultCommand: (command: string, group: string) => Result;
+declare const unsetDefaultCommand: (command: string) => Result;
+declare const deleteCommand: (command: string) => Result;
+declare const deleteContainer: (container: string) => Result;
+declare const deleteImage: (image: string) => Result;
+declare const deleteResource: (resource: string) => Result;
+declare const updateEvents: (event: string, commands: string[]) => Result;
+declare const isQuantityValid: (quantity: string) => Boolean;
+
+@Injectable({
+  providedIn: 'root'
+})
+// WasmGoService uses the wasm module. 
+// The module manages a single instance of a Devfile
+export class WasmGoService {
+
+  addContainer(container: Container): Result {
+    return addContainer(
+      container.name,
+      container.image,
+      container.command,
+      container.args,
+      container.memoryRequest,
+      container.memoryLimit,
+      container.cpuRequest,
+      container.cpuLimit,
+    );
+  }
+
+  addImage(image: Image): Result {
+    return addImage(
+      image.name,
+      image.imageName,
+      image.args,
+      image.buildContext,
+      image.rootRequired,
+      image.uri,
+    );
+  }
+
+  addResource(resource: ClusterResource): Result {
+    return addResource(
+      resource.name,
+      resource.inlined,
+      resource.uri,
+    );
+  }
+
+  addExecCommand(name: string, cmd: ExecCommand): Result {
+    return addExecCommand(
+      name,
+      cmd.component,
+      cmd.commandLine,
+      cmd.workingDir,
+      cmd.hotReloadCapable,
+    );
+  }
+
+  addApplyCommand(name: string, cmd: ApplyCommand): Result {
+    return addApplyCommand(
+      name,
+      cmd.component,      
+    );
+  }
+
+  addCompositeCommand(name: string, cmd: CompositeCommand): Result {
+    return addCompositeCommand(
+      name,
+      cmd.parallel,
+      cmd.commands,      
+    );
+  }
+
+  // getFlowChart calls the wasm module to get the lifecycle of the Devfile in mermaid chart format
+  getFlowChart(): string {
+    const result = getFlowChart();
+    return result.value;
+  }
+
+  // setDevfileContent calls the wasm module to reset the content of the Devfile
+  setDevfileContent(devfile: string): Result {
+    const result = setDevfileContent(devfile);
+    return result;  
+  }
+
+  setMetadata(metadata: Metadata): Result {
+    return setMetadata(metadata);
+  }
+
+  moveCommand(previousKind: string, newKind: string, previousIndex: number, newIndex: number): Result {
+    return moveCommand(previousKind, newKind, previousIndex, newIndex);
+  }
+
+  setDefaultCommand(command: string, group: string): Result {
+    return setDefaultCommand(command, group);
+  }
+
+  unsetDefaultCommand(command: string): Result {
+    return unsetDefaultCommand(command);
+  }
+
+  deleteCommand(command: string): Result {
+    const result = deleteCommand(command);
+    return result;
+  }
+
+  deleteContainer(container: string): Result {
+    const result = deleteContainer(container);
+    return result;
+  }
+
+  deleteImage(image: string): Result {
+    const result = deleteImage(image);
+    return result;
+  }
+
+  deleteResource(resource: string): Result {
+    const result = deleteResource(resource);
+    return result;
+  }
+
+  updateEvents(event: "preStart"|"postStart"|"preStop"|"postStop", commands: string[]): Result {
+    return updateEvents(event, commands);
+  }
+
+  isQuantityValid(quantity: string): Boolean {
+    return isQuantityValid(quantity);
+  }
+}

ui/src/app/tabs/commands/commands.component.css

@@ -0,0 +1,22 @@
+.main { padding: 16px; }
+mat-card { margin-bottom: 16px; }
+mat-card-content { padding: 16px; }
+.command {
+    border: 1px solid #ddd;
+    border-radius: 4px;
+    background-color: #eee;
+    padding: 4px;
+    margin: 4px;
+}
+.parallel-command {
+    margin: 8px;
+}
+.serial-commands {
+    margin: 4px;
+}
+h2 {
+    color: #3f51b5;
+}
+div.align-right {
+    text-align: right;
+}

ui/src/app/tabs/commands/commands.component.html

@@ -0,0 +1,80 @@
+<div class="main">
+    <div class="align-right"><mat-checkbox [(ngModel)]="enableDragAndDrop" (ngModelChange)="enableDragAndDropChange()">Enable Drag and Drop</mat-checkbox></div>
+    <div cdkDropListGroup>
+        <div
+            cdkDropList
+            cdkDropListData="build"
+            (cdkDropListDropped)="drop($event)">
+            <h2>Build Commands</h2>
+            <div class="description">When using odo, a Build command is the first command executed during the inner loop. The command is expected to terminate after the build is completed.</div>
+            <app-commands-list kind="build" [dragDisabled]="!enableDragAndDrop" [commands]="commands"></app-commands-list>
+        </div>
+        <div 
+            cdkDropList
+            cdkDropListData="run"
+            (cdkDropListDropped)="drop($event)">
+            <h2>Run Commands</h2>
+            <div class="description">When using odo, a Run command is executed during the inner loop after the Build command terminates. The command is expected to not terminate.</div>
+            <app-commands-list kind="run" [dragDisabled]="!enableDragAndDrop" [commands]="commands"></app-commands-list>
+        </div>
+        <div 
+            cdkDropList
+            cdkDropListData="test"
+            (cdkDropListDropped)="drop($event)">
+            <h2>Test Commands</h2>
+            <app-commands-list kind="test" [dragDisabled]="!enableDragAndDrop" [commands]="commands"></app-commands-list>
+        </div>
+        <div 
+            cdkDropList
+            cdkDropListData="debug"
+            (cdkDropListDropped)="drop($event)">
+            <h2>Debug Commands</h2>
+            <div class="description">When using odo, a Debug command is executed during the inner loop after the Build command terminates. The command is expected to not terminate.</div>
+            <app-commands-list kind="debug" [dragDisabled]="!enableDragAndDrop" [commands]="commands"></app-commands-list>
+        </div>
+        <div 
+            cdkDropList
+            cdkDropListData="deploy"
+            (cdkDropListDropped)="drop($event)">
+            <h2>Deploy Commands</h2>
+            <div class="description">When using odo, a Deploy command is executed with <code>odo deploy</code>.</div>
+            <app-commands-list kind="deploy" [dragDisabled]="!enableDragAndDrop" [commands]="commands"></app-commands-list>
+        </div>
+        <div 
+            cdkDropList
+            cdkDropListData=""
+            (cdkDropListDropped)="drop($event)">
+            <h2>Generic Commands</h2>
+            <div class="description">Generic can be executed manually, or be part of composite commands and events.</div>
+            <app-commands-list kind="" [dragDisabled]="!enableDragAndDrop" [commands]="commands"></app-commands-list>
+        </div>
+    </div>
+    <app-command-exec (canceled)="undisplayExecForm()" *ngIf="forceDisplayExecForm"></app-command-exec>
+    <app-command-apply (canceled)="undisplayApplyForm()" *ngIf="forceDisplayApplyForm"></app-command-apply>
+    <app-command-image (canceled)="undisplayImageForm()" *ngIf="forceDisplayImageForm"></app-command-image>
+    <app-command-composite (canceled)="undisplayCompositeForm()" *ngIf="forceDisplayCompositeForm"></app-command-composite>
+</div>
+
+<ng-container *ngIf="!forceDisplayExecForm && !forceDisplayApplyForm && !forceDisplayImageForm && !forceDisplayCompositeForm">
+    <button data-cy="add" class="fab" mat-fab color="primary" [matMenuTriggerFor]="menu">
+        <mat-icon class="material-icons-outlined">add</mat-icon>
+    </button>
+</ng-container>
+
+<mat-menu #menu="matMenu" yPosition="above" xPosition="before">
+    <button data-cy="new-command-exec" mat-menu-item (click)="displayExecForm()">
+        <mat-icon class="tab-icon material-icons-outlined">width_normal</mat-icon>
+        <span>Exec command</span>
+    </button>
+    <button data-cy="new-command-image" mat-menu-item (click)="displayImageForm()">
+        <mat-icon class="tab-icon material-icons-outlined">image</mat-icon>
+        <span>Image command</span>
+      </button>
+      <button data-cy="new-command-apply" mat-menu-item (click)="displayApplyForm()">
+        <mat-icon class="tab-icon material-icons-outlined">description</mat-icon>
+        <span>Apply command</span>
+    </button>
+    <button data-cy="new-command-composite" mat-menu-item (click)="displayCompositeForm()">
+        <span>Composite command</span>
+    </button>
+</mat-menu>

ui/src/app/tabs/commands/commands.component.spec.ts

@@ -0,0 +1,23 @@
+import { ComponentFixture, TestBed } from '@angular/core/testing';
+
+import { CommandsComponent } from './commands.component';
+
+describe('CommandsComponent', () => {
+  let component: CommandsComponent;
+  let fixture: ComponentFixture<CommandsComponent>;
+
+  beforeEach(async () => {
+    await TestBed.configureTestingModule({
+      declarations: [ CommandsComponent ]
+    })
+    .compileComponents();
+
+    fixture = TestBed.createComponent(CommandsComponent);
+    component = fixture.componentInstance;
+    fixture.detectChanges();
+  });
+
+  it('should create', () => {
+    expect(component).toBeTruthy();
+  });
+});

ui/src/app/tabs/commands/commands.component.ts

@@ -0,0 +1,110 @@
+import { CdkDragDrop } from '@angular/cdk/drag-drop';
+import { Component } from '@angular/core';
+import { StateService } from 'src/app/services/state.service';
+import { Command, WasmGoService } from 'src/app/services/wasm-go.service';
+
+@Component({
+  selector: 'app-commands',
+  templateUrl: './commands.component.html',
+  styleUrls: ['./commands.component.css']
+})
+export class CommandsComponent {
+  forceDisplayExecForm: boolean = false;
+  forceDisplayApplyForm: boolean = false;
+  forceDisplayImageForm: boolean = false;
+  forceDisplayCompositeForm: boolean = false;
+  enableDragAndDrop: boolean;
+
+  commands: Command[] | undefined = [];
+
+  constructor(
+    private state: StateService,
+    private wasm: WasmGoService,
+  ) {
+    this.enableDragAndDrop = this.state.getDragAndDropEnabled();
+  }
+
+  ngOnInit() {
+    this.state.state.subscribe(async newContent => {
+      this.commands = newContent?.commands;
+      if (this.commands == null) {
+        return
+      }
+      this.forceDisplayExecForm = false;
+      this.forceDisplayApplyForm = false;
+      this.forceDisplayImageForm = false;
+      this.forceDisplayCompositeForm = false;
+    });
+  }
+
+  displayExecForm() {
+    this.forceDisplayExecForm = true;
+    setTimeout(() => {
+      this.scrollToBottom();      
+    }, 0);
+  }
+
+  displayApplyForm() {
+    this.forceDisplayApplyForm = true;
+    setTimeout(() => {
+      this.scrollToBottom();      
+    }, 0);
+  }
+
+  displayImageForm() {
+    this.forceDisplayImageForm = true;
+    setTimeout(() => {
+      this.scrollToBottom();      
+    }, 0);
+  }
+
+  displayCompositeForm() {
+    this.forceDisplayCompositeForm = true;
+    setTimeout(() => {
+      this.scrollToBottom();      
+    }, 0);
+  }
+
+  undisplayExecForm() {
+    this.forceDisplayExecForm = false;
+  }
+
+  undisplayApplyForm() {
+    this.forceDisplayApplyForm = false;
+  }
+
+  undisplayImageForm() {
+    this.forceDisplayImageForm = false;
+  }
+
+  undisplayCompositeForm() {
+    this.forceDisplayCompositeForm = false;
+  }
+
+  drop(event: CdkDragDrop<string>) {
+    this.moveCommand(
+      event.previousContainer.data,
+      event.container.data,
+      event.previousIndex,
+      event.currentIndex,
+    );
+  }
+
+  moveCommand(previousKind: string, newKind: string, previousIndex: number, newIndex: number) {
+    const result = this.wasm.moveCommand(previousKind, newKind, previousIndex, newIndex);
+    if (result.err != '') {
+      alert(result.err);
+    } else {
+      this.state.changeDevfileYaml(result.value);
+    }
+  }
+
+  enableDragAndDropChange() {
+    this.state.saveDragAndDropEnabled(this.enableDragAndDrop);
+  }
+
+  scrollToBottom() {
+    window.scrollTo(0,document.body.scrollHeight);
+  }
+  
+}

ui/src/app/tabs/containers/containers.component.css

@@ -0,0 +1,3 @@
+.main { padding: 16px; }
+mat-card { margin-bottom: 16px; }
+mat-card-content { padding: 16px; }

ui/src/app/tabs/containers/containers.component.html

@@ -0,0 +1,60 @@
+<div class="main">
+    <mat-card data-cy="container-info" *ngFor="let container of containers">
+        <mat-card-header class="colored-title">
+            <mat-card-title>{{container.name}}</mat-card-title>
+            <mat-card-subtitle>Container</mat-card-subtitle>
+        </mat-card-header>
+        <mat-card-content>
+            <table class="aligned">
+                <tr>
+                    <td>Image:</td>
+                    <td><code>{{container.image}}</code></td>
+                </tr>
+                <tr *ngIf="container.command.length > 0">
+                    <td>Command:</td>
+                    <td><code>{{container.command.join(" ")}}</code></td>
+                </tr>
+                <tr *ngIf="container.args.length > 0">
+                    <td>Args:</td>
+                    <td><code>{{container.args.join(" ")}}</code></td>
+                </tr>
+                <tr *ngIf="container.memoryRequest.length > 0">
+                    <td>Memory Request:</td>
+                    <td><code>{{container.memoryRequest}}</code></td>
+                </tr>
+                <tr *ngIf="container.memoryLimit.length > 0">
+                    <td>Memory Limit:</td>
+                    <td><code>{{container.memoryLimit}}</code></td>
+                </tr>
+                <tr *ngIf="container.cpuRequest.length > 0">
+                    <td>CPU Request:</td>
+                    <td><code>{{container.cpuRequest}}</code></td>
+                </tr>
+                <tr *ngIf="container.cpuLimit.length > 0">
+                    <td>CPU Limit:</td>
+                    <td><code>{{container.cpuLimit}}</code></td>
+                </tr>
+            </table>
+
+        </mat-card-content>
+
+        <mat-card-actions>
+            <button mat-button color="warn" (click)="delete(container.name)">Delete</button>
+        </mat-card-actions>
+
+    </mat-card>
+
+    <app-container 
+        *ngIf="forceDisplayAdd || containers == undefined || containers.length == 0"
+        [cancelable]="forceDisplayAdd"
+        (canceled)="undisplayAddForm()"
+        (created)="onCreated($event)"
+        ></app-container>
+</div>
+
+
+<ng-container *ngIf="!forceDisplayAdd && containers != undefined && containers.length > 0">
+    <button data-cy="add" class="fab" mat-fab color="primary" (click)="displayAddForm()">
+        <mat-icon class="material-icons-outlined">add</mat-icon>
+    </button>
+</ng-container>

ui/src/app/tabs/containers/containers.component.spec.ts

@@ -0,0 +1,23 @@
+import { ComponentFixture, TestBed } from '@angular/core/testing';
+
+import { ContainersComponent } from './containers.component';
+
+describe('ContainersComponent', () => {
+  let component: ContainersComponent;
+  let fixture: ComponentFixture<ContainersComponent>;
+
+  beforeEach(async () => {
+    await TestBed.configureTestingModule({
+      declarations: [ ContainersComponent ]
+    })
+    .compileComponents();
+
+    fixture = TestBed.createComponent(ContainersComponent);
+    component = fixture.componentInstance;
+    fixture.detectChanges();
+  });
+
+  it('should create', () => {
+    expect(component).toBeTruthy();
+  });
+});

ui/src/app/tabs/containers/containers.component.ts

@@ -0,0 +1,65 @@
+import { Component, OnInit } from '@angular/core';
+import { StateService } from 'src/app/services/state.service';
+import { Container, WasmGoService } from 'src/app/services/wasm-go.service';
+
+@Component({
+  selector: 'app-containers',
+  templateUrl: './containers.component.html',
+  styleUrls: ['./containers.component.css']
+})
+export class ContainersComponent implements OnInit {
+  
+  forceDisplayAdd: boolean = false;
+  containers: Container[] | undefined = [];
+
+  constructor(
+    private state: StateService,
+    private wasm: WasmGoService,
+  ) {}
+
+  ngOnInit() {
+    const that = this;
+    this.state.state.subscribe(async newContent => {
+      that.containers = newContent?.containers;
+      if (this.containers == null) {
+        return
+      }
+      that.forceDisplayAdd = false;
+    });
+  }
+
+  displayAddForm() {
+    this.forceDisplayAdd = true;
+    setTimeout(() => {
+      this.scrollToBottom();      
+    }, 0);
+  }
+
+  undisplayAddForm() {
+    this.forceDisplayAdd = false;
+  }
+
+  delete(name: string) {
+    if(confirm('You will delete the container "'+name+'". Continue?')) {
+      const result = this.wasm.deleteContainer(name);
+      if (result.err != '') {
+        alert(result.err);
+      } else {
+        this.state.changeDevfileYaml(result.value);
+      }
+    }
+  }
+
+  onCreated(container: Container) {
+    const result = this.wasm.addContainer(container);
+    if (result.err != '') {
+      alert(result.err);
+    } else {
+      this.state.changeDevfileYaml(result.value);
+    }
+  }
+
+  scrollToBottom() {
+    window.scrollTo(0,document.body.scrollHeight);
+  }
+}

ui/src/app/tabs/events/events.component.css

@@ -0,0 +1,4 @@
+.main { padding: 16px; }
+h2 {
+    color: #3f51b5;
+}

ui/src/app/tabs/events/events.component.html

@@ -0,0 +1,34 @@
+<div class="main">
+    <h2>Pre-Start event</h2>
+    <div class="description">Pre-Start commands are executed before the inner loop is started, inside init-containers (not implemented by odo).</div>
+    <app-chips-events 
+        [commands]="events?.preStart ?? []" 
+        [allCommands]="allCommands ?? []"
+        (updated)="onUpdate('preStart', $event)"
+        ></app-chips-events>
+
+    <h2>Post-Start event</h2>
+    <div class="description">Post-Start commands are executed at the beginning of the inner loop, inside pre-fetched containers.</div>
+    <app-chips-events 
+        [commands]="events?.postStart ?? []" 
+        [allCommands]="allCommands ?? []"
+        (updated)="onUpdate('postStart', $event)"
+        ></app-chips-events>
+
+    <h2>Pre-Stop event</h2>
+    <div class="description">Pre-Stop commands are executed at the end of  the inner loop, inside pre-fetched containers.</div>
+    <app-chips-events 
+        [commands]="events?.preStop ?? []" 
+        [allCommands]="allCommands ?? []"
+        (updated)="onUpdate('preStop', $event)"
+        ></app-chips-events>
+
+    <h2>Post-Stop event</h2>
+    <div class="description">Post-Stop commands are executed after the inner loop is finished (not implemented by odo).</div>
+    <app-chips-events 
+        [commands]="events?.postStop ?? []" 
+        [allCommands]="allCommands ?? []"
+        (updated)="onUpdate('postStop', $event)"
+        ></app-chips-events>
+
+</div>

ui/src/app/tabs/events/events.component.spec.ts

@@ -0,0 +1,23 @@
+import { ComponentFixture, TestBed } from '@angular/core/testing';
+
+import { EventsComponent } from './events.component';
+
+describe('EventsComponent', () => {
+  let component: EventsComponent;
+  let fixture: ComponentFixture<EventsComponent>;
+
+  beforeEach(async () => {
+    await TestBed.configureTestingModule({
+      declarations: [ EventsComponent ]
+    })
+    .compileComponents();
+
+    fixture = TestBed.createComponent(EventsComponent);
+    component = fixture.componentInstance;
+    fixture.detectChanges();
+  });
+
+  it('should create', () => {
+    expect(component).toBeTruthy();
+  });
+});

ui/src/app/tabs/events/events.component.ts

@@ -0,0 +1,35 @@
+import { Component } from '@angular/core';
+import { StateService } from 'src/app/services/state.service';
+import { Events, WasmGoService } from 'src/app/services/wasm-go.service';
+
+@Component({
+  selector: 'app-events',
+  templateUrl: './events.component.html',
+  styleUrls: ['./events.component.css']
+})
+export class EventsComponent {
+  
+  events: Events | undefined;
+  allCommands: string[] | undefined;
+
+  constructor(
+    private state: StateService,
+    private wasm: WasmGoService,
+  ) {}
+
+  ngOnInit() {
+    this.state.state.subscribe(async newContent => {
+      this.events = newContent?.events;
+      this.allCommands = newContent?.commands.map(c => c.name);
+    });
+  }
+
+  onUpdate(event: "preStart" | "postStart" | "preStop" | "postStop", commands: string[]) {
+    const result = this.wasm.updateEvents(event, commands);
+    if (result.err != '') {
+      alert(result.err);
+    } else {
+      this.state.changeDevfileYaml(result.value);
+    }
+  }
+}

ui/src/app/tabs/images/images.component.css

@@ -0,0 +1,3 @@
+.main { padding: 16px; }
+mat-card { margin-bottom: 16px; }
+mat-card-content { padding: 16px; }