Automate build of timelimit-server-ui docker image

.gitea/workflows/timelimit-server-ui.yml

@@ -0,0 +1,101 @@
+name: Build and push timelimit-server-ui image
+
+on:
+  schedule:
+    - cron: "0 0 */3 * *"   # every 72 hours
+  workflow_dispatch:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      # Checkout THIS repository (Dockerfile lives here)
+      - name: Checkout current repository
+        uses: actions/checkout@v4
+
+      # Get latest timelimit-server-ui commit SHA
+      - name: Get timelimit-server-ui commit SHA
+        id: sha
+        run: |
+          SHA=$(git ls-remote https://gitea.furb.it/${{ vars.FRONTEND_PATH }}.git refs/heads/${{ vars.FRONTEND_BRANCH }} | cut -f1)
+          echo "sha=$SHA" >> $GITEA_OUTPUT
+
+      # Login to registry (needed to inspect latest image)
+      - name: Docker login
+        run: |
+          echo "${{ secrets.ACCESS_TOKEN }}" | docker login gitea.furb.it \
+            -u "${{ secrets.USERNAME }}" \
+            --password-stdin
+
+      # Try to read timelimit-server-ui SHA from latest image label
+      - name: Check if image with timelimit-server-ui SHA exists
+        id: exists
+        run: |
+          SHA="${{ steps.sha.outputs.sha }}"
+
+          STATUS=$(curl -s -o /dev/null -w "%{http_code}" \
+            -u "${{ secrets.USERNAME }}:${{ secrets.ACCESS_TOKEN }}" \
+            -H "Accept: application/vnd.docker.distribution.manifest.v2+json" \
+            https://gitea.furb.it/v2/${{ vars.FRONTEND_IMAGE }}/manifests/$SHA)
+
+          if [ "$STATUS" = "200" ]; then
+            echo "exists=true" >> $GITEA_OUTPUT
+          else
+            echo "exists=false" >> $GITEA_OUTPUT
+          fi
+
+      # Exit early if unchanged
+      - name: Skip build if image already exists
+        run: |
+          if [ "${{ steps.exists.outputs.exists }}" = "true" ]; then
+            echo "Image for this timelimit-server-ui commit already exists. Skipping build."
+            exit 0
+          fi
+
+      # Checkout timelimit-server-ui repository for build
+      - name: Checkout timelimit-server-ui repository
+        uses: actions/checkout@v4
+        with:
+          repository: ${{ vars.FRONTEND_PATH }}.git
+          ref: ${{ steps.sha.outputs.sha }}
+          path: timelimit-server-ui
+          token: ${{ secrets.ACCESS_TOKEN }}
+
+      # Set up Node.js
+      - name: Set up Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: 20
+          cache: npm
+          cache-dependency-path: timelimit-server-ui/package-lock.json
+
+      - name: npm install
+        working-directory: timelimit-server-ui
+        run: npm install
+
+      - name: npm run build
+        working-directory: timelimit-server-ui
+        run: npm run build
+
+      # Prepare Docker build context
+      - name: Prepare Docker context
+        run: |
+          rm -rf dist
+          cp -r timelimit-server-ui/dist ./dist
+
+      # Build image with commit-SHA tag and label
+      - name: Build Docker image
+        run: |
+          docker build \
+            -f Dockerfile-ui \
+            --label timelimit-server-ui.sha=${{ steps.sha.outputs.sha }} \
+            -t gitea.furb.it/${{ vars.FRONTEND_IMAGE }}:${{ steps.sha.outputs.sha }} \
+            -t gitea.furb.it/${{ vars.FRONTEND_IMAGE }}:latest \
+            .
+
+      # Push images
+      - name: Push Docker images
+        run: |
+          docker push gitea.furb.it/${{ vars.FRONTEND_IMAGE }}:${{ steps.sha.outputs.sha }}
+          docker push gitea.furb.it/${{ vars.FRONTEND_IMAGE }}:latest

Dockerfile-ui

@@ -0,0 +1,12 @@
+FROM nginx:alpine
+LABEL maintainer="Kenneth van Ewijk (kennyboy55)"
+LABEL timelimit-server-ui.sha="unknown"
+
+RUN rm -rf /usr/share/nginx/html/*
+
+WORKDIR /usr/share/nginx/html/
+
+COPY dist/* ./
+
+EXPOSE 80
+CMD ["nginx", "-g", "daemon off;"]