Adds GitHub Actions to automatically release Docker Images on Docker …

…Hub (#122)

* Adds GitHub Actions for automatically pushing to DockerHub

* Removes unecessary comment

* Updates prerelease tag to SNAPSHOT

.github/workflows/docker-prerelease-ui.yml

@@ -0,0 +1,48 @@
+name: Build and Push Docker Images on PR Merge
+
+on:
+  push:
+    branches:
+      - main
+    paths:
+      - 'aas-web-ui/**'
+
+jobs:
+  build-and-push-prerelease:
+    runs-on: ubuntu-latest
+
+    steps:
+      # Step 1: Checkout the repository
+      - name: Checkout Code
+        uses: actions/checkout@v4
+
+      # Step 2: Set up Docker Buildx
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v2
+        with:
+          platforms: linux/amd64,linux/arm64,linux/arm/v7
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      # Step 3: Log in to Docker Hub
+      - name: Log in to Docker Hub
+        uses: docker/login-action@v2
+        with:
+          username: ${{ secrets.DOCKER_HUB_USER }}
+          password: ${{ secrets.DOCKER_HUB_TOKEN }}
+
+      # Step 4: Build and Push Docker Image with Fixed Pre-release Tag
+      - name: Build and Push Docker Image (Pre-release)
+        uses: docker/build-push-action@v3
+        with:
+          context: .
+          push: true
+          platforms: linux/amd64,linux/arm64,linux/arm/v7
+          tags: |
+            eclipsebasyx/aas-gui:SNAPSHOT
+
+      # Step 5: Verify the Push
+      - name: Verify Docker Image
+        run: |
+          docker pull eclipsebasyx/aas-gui:SNAPSHOT

.github/workflows/docker-release-ui.yml

@@ -0,0 +1,55 @@
+name: Build and Push Docker Images on Release
+
+on:
+  release:
+    types: [published]
+
+jobs:
+  build-and-push-release:
+    runs-on: ubuntu-latest
+
+    steps:
+      # Step 1: Checkout the repository
+      - name: Checkout Code
+        uses: actions/checkout@v4
+
+      # Step 2: Set up Docker Buildx
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v2
+        with:
+          platforms: linux/amd64,linux/arm64,linux/arm/v7
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      # Step 3: Log in to Docker Hub
+      - name: Log in to Docker Hub
+        uses: docker/login-action@v2
+        with:
+          username: ${{ secrets.DOCKER_HUB_USER }}
+          password: ${{ secrets.DOCKER_HUB_TOKEN }}
+
+      # Step 4: Extract Release Tag as Date
+      - name: Extract Release Tag
+        id: extract_tag
+        run: |
+          # Assuming the release tag is in yymmdd format
+          TAG_NAME=${GITHUB_REF#refs/tags/}
+          echo "TAG_NAME=${TAG_NAME}" >> $GITHUB_ENV
+
+      # Step 5: Build and Push Docker Images
+      - name: Build and Push Docker Images
+        uses: docker/build-push-action@v3
+        with:
+          context: .
+          push: true
+          platforms: linux/amd64,linux/arm64,linux/arm/v7
+          tags: |
+            eclipsebasyx/aas-gui:${{ env.TAG_NAME }}
+            eclipsebasyx/aas-gui:latest
+
+      # Step 6: Verify the Push
+      - name: Verify Docker Images
+        run: |
+          docker pull eclipsebasyx/aas-gui:${{ env.TAG_NAME }}
+          docker pull eclipsebasyx/aas-gui:latest