Allow configurable PostgreSQL credentials and synchronize DATABASE_URL across containers

docker-compose.yml

@@ -6,15 +6,15 @@ services:
     container_name: jobsboard_db
     restart: always
     environment:
-      POSTGRES_USER: postgres
-      POSTGRES_PASSWORD: postgres
-      POSTGRES_DB: jobsboard
+      POSTGRES_USER: "${POSTGRES_USER:-postgres}"
+      POSTGRES_PASSWORD: "${POSTGRES_PASSWORD:-postgres}"
+      POSTGRES_DB: "${POSTGRES_DB:-jobsboard}"
     ports:
       - "${DB_PORT:-5432}:5432"
     volumes:
       - postgres_data:/var/lib/postgresql/data
     healthcheck:
-      test: ["CMD-SHELL", "pg_isready -U postgres -d jobsboard"]
+      test: ["CMD-SHELL", "pg_isready -U ${POSTGRES_USER:-postgres} -d ${POSTGRES_DB:-jobsboard}"]
       interval: 5s
       timeout: 5s
       retries: 5
@@ -31,7 +31,7 @@ services:
     ports:
       - "${WEB_PORT:-3000}:3000"
     environment:
-      DATABASE_URL: "postgresql://postgres:postgres@db:5432/jobsboard?schema=public"
+      DATABASE_URL: "${DATABASE_URL:-postgresql://${POSTGRES_USER:-postgres}:${POSTGRES_PASSWORD:-postgres}@db:5432/${POSTGRES_DB:-jobsboard}?schema=public}"
       NEXTAUTH_SECRET: "${NEXTAUTH_SECRET:-jobsboard-secret-key-for-auth-sessions}"
       NEXTAUTH_URL: "${NEXTAUTH_URL:-http://localhost:3000}"
       NODE_ENV: "production"
@@ -52,7 +52,7 @@ services:
     container_name: jobsboard_scraper
     restart: always
     environment:
-      DATABASE_URL: "postgresql://postgres:postgres@db:5432/jobsboard?schema=public"
+      DATABASE_URL: "${DATABASE_URL:-postgresql://${POSTGRES_USER:-postgres}:${POSTGRES_PASSWORD:-postgres}@db:5432/${POSTGRES_DB:-jobsboard}?schema=public}"
       SCRAPE_INTERVAL_MINUTES: "30"
       SOCKS5_PROXY: "${SOCKS5_PROXY:-}"
       PROXY_URL: "${PROXY_URL:-}"