Update python-app.yml

.github/workflows/python-app.yml

@@ -3,7 +3,28 @@ name: CI/CD
 on: [push, pull_request]
 
 jobs:
+  lint:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+
+      - name: Set up Python 3.12
+        uses: actions/setup-python@v3
+        with:
+          python-version: '3.12'
+
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install black
+
+      - name: Run Black Linter
+        run: |
+          black --check .
+
   build-and-test:
+    needs: lint
     runs-on: ubuntu-latest
     strategy:
       matrix:
@@ -28,7 +49,12 @@ jobs:
     
       - name: Install dependencies
         run: make install
-
+
+      - name: Install Docker Compose
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y docker-compose
+
   docker-build:
     needs: build-and-test
     runs-on: ubuntu-latest
@@ -45,15 +71,15 @@ jobs:
         run: |
           sudo apt-get update
           sudo apt-get install -y docker-compose
-      
+
       - name: Build Docker images
         timeout-minutes: 5
         env:
           AT_USERNAME: ${{ secrets.AT_USERNAME }}
           AT_API_KEY: ${{ secrets.AT_API_KEY }}
         run: |
           make docker_run
-
+    
       - name: Check build status
         run: |
           if [ "$(docker ps -q)" ]; then
@@ -62,7 +88,7 @@ jobs:
             echo "No containers running"
             exit 1
           fi
-      
+
       - name: Cleanup Docker resources
         if: always()
         timeout-minutes: 5