Automate build of timelimit-server docker image

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

@@ -2,7 +2,7 @@ name: Build and push timelimit-server-ui image
 
 on:
   schedule:
-    - cron: "0 0 */3 * *"   # every 72 hours
+    - cron: "0 5 */3 * *"   # every 72 hours
   workflow_dispatch:
 
 jobs:

.gitea/workflows/timelimit-server.yml

@@ -0,0 +1,74 @@
+name: Build and push timelimit-server image
+
+on:
+  schedule:
+    - cron: "30 5 */3 * *"   # every 72 hours
+  workflow_dispatch:
+
+jobs:
+  check:
+    runs-on: ubuntu-latest
+    outputs:
+      exists: ${{ steps.exists.outputs.exists }}
+      sha: ${{ steps.sha.outputs.sha }}
+    steps:
+      # Get latest timelimit-server commit SHA
+      - name: Get timelimit-server commit SHA
+        id: sha
+        run: |
+          SHA=$(git ls-remote https://gitea.furb.it/${{ vars.SERVER_PATH }}.git refs/heads/${{ vars.SERVER_BRANCH }} | cut -f1)
+          echo "sha=$SHA" >> $GITEA_OUTPUT
+
+      # Try to read timelimit-server SHA from latest image label
+      - name: Check if image with timelimit-server SHA exists
+        id: exists
+        run: |
+          SHA="${{ 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.SERVER_IMAGE }}/manifests/$SHA)
+
+          if [ "$STATUS" = "200" ]; then
+            echo "exists=true" >> $GITEA_OUTPUT
+          else
+            echo "exists=false" >> $GITEA_OUTPUT
+          fi
+
+  build:
+    runs-on: ubuntu-latest
+    needs: check
+    if: needs.check.outputs.exists == 'false'
+    steps:
+
+      # Checkout timelimit-server repository for build
+      - name: Checkout timelimit-server repository
+        uses: actions/checkout@v4
+        with:
+          repository: ${{ vars.SERVER_PATH }}.git
+          ref: ${{ needs.check.outputs.sha }}
+          token: ${{ secrets.ACCESS_TOKEN }}
+
+      # Login to registry (needed to inspect latest image)
+      - name: Docker login
+        run: |
+          echo "${{ secrets.ACCESS_TOKEN }}" | docker login gitea.furb.it \
+            -u "${{ secrets.USERNAME }}" \
+            --password-stdin
+
+      # Build image with commit-SHA tag and label
+      - name: Build Docker image
+        run: |
+          docker build \
+            -f Dockerfile \
+            --label timelimit-server.sha=${{ needs.check.outputs.sha }} \
+            -t gitea.furb.it/${{ vars.SERVER_IMAGE }}:${{ needs.check.outputs.sha }} \
+            -t gitea.furb.it/${{ vars.SERVER_IMAGE }}:latest \
+            .
+
+      # Push images
+      - name: Push Docker images
+        run: |
+          docker push gitea.furb.it/${{ vars.SERVER_IMAGE }}:${{ needs.check.outputs.sha }}
+          docker push gitea.furb.it/${{ vars.SERVER_IMAGE }}:latest

README.md

@@ -1,3 +1,21 @@
 # timelimit-docker
 
 Build docker images from timelimit repositories.
+
+## timelimit-server
+This repository does have a dockerfile. 
+Using a workflow, the server repo is built, and packaged in an image.
+
+| **Available tags** |        |
+|--------------------|--------|
+| Latest version     | latest |
+| Specific commit    | <sha>  |
+
+## timelimit-server-ui
+This repository does not have a dockerfile. This repository contains a docker file.
+Using a workflow, the server-ui repo is built, and packaged in an image.
+
+| **Available tags** |        |
+|--------------------|--------|
+| Latest version     | latest |
+| Specific commit    | <sha>  |