add github actions for backend

.github/workflows/backend-dev.yaml

@@ -0,0 +1,50 @@
+name: Backend dev workflow
+
+on:
+  push:
+    branches:
+      - dev
+    paths:
+      - 'backend/**'
+  pull_request:
+    branches:
+      - dev
+    paths:
+      - 'backend/**'
+
+jobs:
+  format-lint-test:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Set up Python
+        uses: actions/setup-python@v4
+        with:
+          python-version: 3.11
+
+      - name: Install dependencies (Poetry)
+        run: |
+          cd backend
+          curl -sSL https://install.python-poetry.org | python3 -
+          export PATH="$HOME/.local/bin:$PATH"
+          poetry install
+
+      - name: Run formatter (black)
+        run: |
+          cd backend
+          poetry run black --check .
+
+      - name: Run linter (ruff)
+        run: |
+          cd backend
+          poetry run ruff check .
+
+      - name: Run tests
+        run: |
+          cd backend
+          poetry run pytest --maxfail=1 --disable-warnings -q
+
+

.github/workflows/backend-main.yaml

@@ -0,0 +1,76 @@
+name: Backend main workflow
+
+on:
+  push:
+    branches:
+      - main
+    paths:
+      - 'backend/**'
+  pull_request:
+    branches:
+      - main
+    paths:
+      - 'backend/**'
+
+jobs:
+  build-test-deploy:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Set up Python
+        uses: actions/setup-python@v4
+        with:
+          python-version: 3.11
+
+      - name: Install dependencies (Poetry)
+        run: |
+          cd backend
+          curl -sSL https://install.python-poetry.org | python3 -
+          export PATH="$HOME/.local/bin:$PATH"
+          poetry install
+
+      - name: Run tests
+        run: |
+          cd backend
+          poetry run pytest --maxfail=1 --disable-warnings -q
+
+      - name: Log in to Docker Hub
+        uses: docker/login-action@f4ef78c080cd8ba55a85445d5b36e214a81df20a
+        with:
+          username: ${{ secrets.DOCKER_USERNAME }}
+          password: ${{ secrets.DOCKER_PASSWORD }}
+
+      - name: Log in to the Container registry
+        uses: docker/login-action@65b78e6e13532edd9afa3aa52ac7964289d1a9c1
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GHCR_TOKEN }}
+
+      - name: Extract metadata (tags, labels) for Docker
+        id: meta
+        uses: docker/metadata-action@9ec57ed1fcdbf14dcef7dfbe97b2010124a938b7
+        with:
+          images: |
+            cpprian/encrypted-notes-manager-backend
+            ghcr.io/${{ github.repository }}-backend
+
+      - name: Build and push Docker images
+        id: push
+        uses: docker/build-push-action@3b5e8027fcad23fda98b2e3ac259d8d67585f671
+        with:
+          context: ./backend
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
+
+      - name: Generate artifact attestation
+        uses: actions/attest-build-provenance@v3
+        with:
+          subject-name: ghcr.io/${{ github.repository }}
+          subject-digest: ${{ steps.push.outputs.digest }}
+          push-to-registry: true
+