ci: configure database environment variables

.github/workflows/ci.yml

@@ -6,6 +6,12 @@ on:
   pull_request:
     branches: [ main ]
 
+env:
+  # WHY?: services are executed way before the env can be sourced from .env file
+  DB_NAME: piku_test_db
+  DB_USER: test
+  DB_PASSWORD: password123
+
 jobs:
   setup-environment:
     name: Generate Certificates
@@ -64,11 +70,9 @@ jobs:
       postgres:
         image: postgres:16-alpine
         env:
-          POSTGRES_DB: piku
-          POSTGRES_USER: user
-          POSTGRES_PASSWORD: password123
-        ports:
-          - 5432:5432
+          POSTGRES_DB: ${{ env.DB_NAME }}
+          POSTGRES_USER: ${{ env.DB_USER }}
+          POSTGRES_PASSWORD: ${{ env.DB_PASSWORD }}
         options: --health-cmd pg_isready --health-interval 10s --health-timeout 5s --health-retries 5
     defaults:
       run:
@@ -87,10 +91,14 @@ jobs:
           path: certs
           key: certs-${{ runner.os }}-${{ github.sha }}
 
-      - name: Setup Environment
+      - name: Setup DB connection Variables
         run: |
+          echo "DB_HOST=postgres" >> $GITHUB_ENV
+          echo "DB_PORT=5432" >> $GITHUB_ENV
           cp ../.env.example ../.env
           uv sync
+          echo "DB_HOST=postgres" >> ../.env
+          echo "DB_PORT=5432" >> ../.env
 
       - name: Lint & Test
         run: |