build image action

.github/workflows/ci.yml

@@ -44,3 +44,41 @@ jobs:
       env:
         DATABASE_URL: postgres://postgres:@localhost:5432/postgres
       run: make test
+
+  docker:
+    needs: build
+    runs-on: ubuntu-latest
+    steps:
+
+    - uses: actions/checkout@v4
+
+    - name: Set up Python
+      uses: actions/setup-python@v5
+      id: setup-python
+      with:
+        python-version-file: '.python-version'
+
+    - name: Set up QEMU
+      uses: docker/setup-qemu-action@v3
+
+    - name: Set up Docker Buildx
+      uses: docker/setup-buildx-action@v3
+
+    - name: login to ghcr
+        uses: docker/login-action@v3
+        if: ${{ github.ref == 'refs/heads/master' }}
+        with:
+          registry: ghcr.io
+          username: ${{ github.repository_owner }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+    - name: Build and push
+      uses: docker/build-push-action@v5
+      with:
+        context: .
+        push: true
+        tags: |
+          ghcr.io/${{ github.repository }}/app:latest
+          ghcr.io/${{ github.repository }}/${{ github.sha }}
+        cache-from: type=gha
+        cache-to: type=gha,mode=max