Adjusted CI

.github/workflows/ci.yml

@@ -12,6 +12,21 @@ jobs:
   ci:
     name: Continuous integration tests
     runs-on: ubuntu-latest
+    services:
+      # Label used to access the service container
+      postgis:
+        # Docker Hub image
+        image: postgis/postgis:16-3.4-alpine
+        # Provide the password for postgres
+        env:
+          POSTGRES_PASSWORD: postgres
+        # Set health checks to wait until postgres has started
+        options: >-
+          --health-cmd pg_isready --health-interval 10s --health-timeout 5s
+          --health-retries 5
+        ports:
+          # Maps tcp port 5432 on service container to the host
+          - 5432:5432
     steps:
       - uses: actions/checkout@v4
       - name: Install Python
@@ -32,16 +47,7 @@ jobs:
       - name: Install the project dependencies
         run: poetry install
       # Create a PostGIS database (in a Docker container) for tests
-      - name: Start the PostGIS Docker container
-        run:
-          docker run --name postgis -e POSTGRES_PASSWORD=postgres -d -p
-          5432:5432 postgis/postgis:16-3.4-alpine
       - name: Run the automated tests
         run: make test
         env:
           TOPO_TESTING_DATABASE_URL: postgresql://postgres:postgres@localhost:5432/mapboard_topology_test
-      - name: Stop the PostGIS Docker container
-        if: always()
-        run: |
-          docker stop postgis
-          docker rm postgis