Split CI to only build containers after main push

.github/workflows/docker-package.yml

@@ -0,0 +1,59 @@
+name: Python package
+
+on:
+  push:
+    branches: [ "main" ]
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        python-version: ["3.9", "3.10", "3.11"]
+
+    steps:
+    - uses: actions/checkout@v3
+    - name: Set up Python ${{ matrix.python-version }}
+      uses: actions/setup-python@v3
+      with:
+        python-version: ${{ matrix.python-version }}
+    - name: Install dependencies
+      run: |
+        python -m pip install --upgrade pip
+        python -m pip install flake8 pytest
+        if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
+    - name: Lint with flake8
+      run: |
+        # stop the build if there are Python syntax errors or undefined names
+        flake8 . --count --select=E9,F63,F7,F82 --show-source --statistics
+        # exit-zero treats all errors as warnings. The GitHub editor is 127 chars wide
+        flake8 . --count --exit-zero --max-complexity=10 --max-line-length=127 --statistics
+    - name: Test with pytest
+      run: |
+        pytest
+
+  build_docker_image:
+    runs-on: ubuntu-latest
+    steps:
+    - name: Checkout
+      uses: actions/checkout@v2
+    - name: Get Version Tags
+      id: versions
+      run: |
+        echo "BACKEND_VERSION=$(echo "$(<index/api/routes.py)" | grep -oP "(?<=version=\")[^\"]+")" >> "$GITHUB_OUTPUT"
+    - name: Docker Login
+      uses: docker/login-action@v1
+      with:
+        registry: ghcr.io
+        username: ${{ github.actor }}
+        password: ${{ secrets.GITHUB_TOKEN }}
+    - name: Build & push backend
+      uses: docker/build-push-action@v2
+      with:
+        file: Dockerfile
+        push: true
+        tags: |
+          ghcr.io/scai-bio/backend:latest
+          ghcr.io/scai-bio/backend:${{ steps.versions.outputs.BACKEND_VERSION }}

.github/workflows/python-package.yml

@@ -35,27 +35,3 @@ jobs:
     - name: Test with pytest
       run: |
         pytest
-
-  build_docker_image:
-    runs-on: ubuntu-latest
-    steps:
-    - name: Checkout
-      uses: actions/checkout@v2
-    - name: Get Version Tags
-      id: versions
-      run: |
-        echo "BACKEND_VERSION=$(echo "$(<index/api/routes.py)" | grep -oP "(?<=version=\")[^\"]+")" >> "$GITHUB_OUTPUT"
-    - name: Docker Login
-      uses: docker/login-action@v1
-      with:
-        registry: ghcr.io
-        username: ${{ github.actor }}
-        password: ${{ secrets.GITHUB_TOKEN }}
-    - name: Build & push backend
-      uses: docker/build-push-action@v2
-      with:
-        file: Dockerfile
-        push: true
-        tags: |
-          ghcr.io/scai-bio/backend:latest
-          ghcr.io/scai-bio/backend:${{ steps.versions.outputs.BACKEND_VERSION }}