chore: improve contributor DX (#370)

Author: janklan

docker-compose.yml

@@ -1,14 +1,12 @@
-version: '3.8'
-
 services:
   postgres:
-    image: postgres:17
+    image: postgres:${POSTGRES_VERSION:-17}
     environment:
-      POSTGRES_USER: postgres
-      POSTGRES_PASSWORD: postgres
-      POSTGRES_DB: postgres_doctrine_test
+      POSTGRES_USER: ${POSTGRES_USER:-postgres}
+      POSTGRES_PASSWORD: ${POSTGRES_PASSWORD:-postgres}
+      POSTGRES_DB: ${POSTGRES_DB:-postgres_doctrine_test}
     ports:
-      - "5432:5432"
+      - "${POSTGRES_PORT:-5432}:5432"
     volumes:
       - postgres_data:/var/lib/postgresql/data
     healthcheck:

tests/Integration/README.md

@@ -21,12 +21,14 @@ docker-compose up -d
 Or use a plain Docker command:
 
 ```bash
-docker run --name postgres-doctrine-test -e POSTGRES_PASSWORD=postgres -e POSTGRES_USER=postgres -e POSTGRES_DB=postgres_doctrine_test -p 5432:5432 -d postgres:14
+docker run --name postgres-doctrine-test -e POSTGRES_PASSWORD=postgres -e POSTGRES_USER=postgres -e POSTGRES_DB=postgres_doctrine_test -p 5432:5432 -d postgres:17
 ```
 
 ### Run the Tests
 
 ```bash
+# Install the latest dependencies
+composer update
 # Run the integration tests
 composer run-integration-tests
 ```