feat: add reusable Docker build workflow and image publishing process

Author: Morten-Renner

.github/workflows/build-docker.yml

@@ -0,0 +1,70 @@
+name: Reusable Docker Build
+
+on:
+  workflow_call:
+    inputs:
+      platform-runner:
+        description: 'The runner to use (e.g., ubuntu-latest, ubuntu-24.04-arm)'
+        required: true
+        type: string
+      platform-name:
+        description: 'The Docker platform name (e.g., linux/amd64, linux/arm64)'
+        required: true
+        type: string
+      image-name:
+        description: 'The name of the image to build'
+        required: true
+        type: string
+    secrets:
+      GITHUB_TOKEN:
+        required: true
+
+jobs:
+  build:
+    runs-on: ${{ inputs.platform-runner }}
+    env:
+      IMAGE_NAME: ${{ inputs.image-name }}
+    permissions:
+      contents: read
+      packages: write
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Log in to the Container registry
+        uses: docker/login-action@v3
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Extract metadata (tags, labels) for Docker
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          images: ${{ env.IMAGE_NAME }}
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Build and push Docker image
+        uses: docker/build-push-action@v6
+        with:
+          context: .
+          platforms: ${{ inputs.platform-name }}
+          labels: ${{ steps.meta.outputs.labels }}
+          outputs: type=image,"name=${{ env.IMAGE_NAME }}",push-by-digest=true,name-canonical=true,push=true
+
+      - name: Export digest
+        run: |
+          mkdir -p ${{ runner.temp }}/digests
+          digest="${{ steps.build.outputs.digest }}"
+          touch "${{ runner.temp }}/digests/${digest#sha256:}"
+
+      - name: Upload digest
+        uses: actions/upload-artifact@v4
+        with:
+          name: digests-${{ inputs.platform-name }} # Use platform name for unique artifact
+          path: ${{ runner.temp }}/digests/*
+          if-no-files-found: error
+          retention-days: 7

.github/workflows/publish_docker.yml .github/workflows/docker-image.yml.github/workflows/publish_docker.yml renamed to .github/workflows/docker-image.yml

@@ -4,8 +4,7 @@ on:
   workflow_dispatch:
   workflow_run:
     workflows: ["Playwright Tests"]
-    types:
-      - completed
+    types: [completed]
     branches: [development, production]
 
 env:
@@ -33,83 +32,38 @@ jobs:
       - name: Convert image name
         id: step1
         run: |
-          echo "Current image name:"
-          echo $UPPER_IMAGE_NAME
           echo "IMAGE_NAME=$(echo $UPPER_IMAGE_NAME | tr '[:upper:]' '[:lower:]')" >> $GITHUB_OUTPUT
-          echo "Converted image name:"
-          echo $(echo $UPPER_IMAGE_NAME | tr '[:upper:]' '[:lower:]')
-          echo "Step output:"
-          echo $GITHUB_OUTPUT
 
-  build:
-    runs-on: ubuntu-latest
-    needs: prepare
-    strategy:
-      matrix:
-        platform:
-          - linux/amd64
-          - linux/arm64
-    env:
-      IMAGE_NAME: ${{ needs.prepare.outputs.image-name }}
-    permissions:
-      contents: read
-      packages: write
-    steps:
-      - name: Prepare
-        run: |
-          platform=${{ matrix.platform }}
-          echo "PLATFORM_PAIR=${platform//\//-}" >> $GITHUB_ENV
-
-      - name: Checkout repository
-        uses: actions/checkout@v4
-
-      - name: Log in to the Container registry
-        uses: docker/login-action@v3
-        with:
-          registry: ${{ env.REGISTRY }}
-          username: ${{ github.actor }}
-          password: ${{ secrets.GITHUB_TOKEN }}
+  # Dispatch builds
 
-      - name: Extract metadata (tags, labels) for Docker
-        id: meta
-        uses: docker/metadata-action@v5
-        with:
-          images: ${{ env.IMAGE_NAME }}
-
-      - name: Set up QEMU
-        uses: docker/setup-qemu-action@v3
-
-      - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v3
-
-      - name: Build and push by digest
-        id: build
-        uses: docker/build-push-action@v6
-        with:
-          context: .
-          platforms: ${{ matrix.platform }}
-          labels: ${{ steps.meta.outputs.labels }}
-          outputs: type=image,"name=${{ env.IMAGE_NAME }}",push-by-digest=true,name-canonical=true,push=true
-
-      - name: Export digest
-        run: |
-          mkdir -p ${{ runner.temp }}/digests
-          digest="${{ steps.build.outputs.digest }}"
-          touch "${{ runner.temp }}/digests/${digest#sha256:}"
+  build-amd64:
+    name: Build AMD64 Image
+    uses: ./.github/workflows/build-docker.yml
+    needs: prepare
+    with:
+      platform-runner: ubuntu-latest
+      platform-name: linux/amd64
+      image-name: ${{ needs.prepare.outputs.image-name }}
+    secrets: inherit
+
+  build-arm64:
+    name: Build ARM64 Image
+    uses: ./.github/workflows/build-docker.yml
+    needs: prepare
+    with:
+      platform-runner: ubuntu-24.04-arm
+      platform-name: linux/arm64
+      image-name: ${{ needs.prepare.outputs.image-name }}
+    secrets: inherit
 
-      - name: Upload digest
-        uses: actions/upload-artifact@v4
-        with:
-          name: digests-${{ env.PLATFORM_PAIR }}
-          path: ${{ runner.temp }}/digests/*
-          if-no-files-found: error
-          retention-days: 7
+  # Merge and publish multi-arch image
 
   merge:
     runs-on: ubuntu-latest
     needs:
       - prepare
-      - build
+      - build-amd64
+      - build-arm64
     env:
       IMAGE_NAME: ${{ needs.prepare.outputs.image-name }}
       BUILDX_NO_DEFAULT_ATTESTATIONS: 1
@@ -140,17 +94,11 @@ jobs:
         with:
           images: ${{ env.IMAGE_NAME }}
           tags: |
-            # for example: develop
             type=ref,event=branch
-            # for example: pr-35
             type=ref,event=pr
-            # for example: 2.3.4
             type=semver,pattern={{version}}
-            # for example: 2.3
             type=semver,pattern={{major}}.{{minor}}
-            # for example: 2
             type=semver,pattern={{major}}
-            # set 'latest' for new tags
             type=raw,value=latest,enable=${{ startsWith( github.ref, 'refs/tags/' ) }}
 
       - name: Create manifest list and push
@@ -160,4 +108,4 @@ jobs:
             $(printf '${{ env.IMAGE_NAME }}@sha256:%s ' *)
 
       - name: Inspect image
-        run: docker buildx imagetools inspect ${{ env.IMAGE_NAME }}:${{ steps.meta.outputs.version }}
+        run: docker buildx imagetools inspect ${{ env.IMAGE_NAME }}:${{ steps.meta.outputs.version }}