App + db + secrets volume

app-service-docker-compose.yaml

version: '3.3'
services:
  app-db:
    image: postgres:12.3
    restart: "no"
    ports:
      - "32710:5432"
    environment:
      POSTGRES_USER: app_service
      POSTGRES_PASSWORD: haveaniceday
      POSTGRES_DB: app_service
    volumes:
      - ../.db/schema:/docker-entrypoint-initdb.d
      - ../.db/data/:/var/lib/postgresql/data/
  app-service:
    depends_on:
      - app-db
    image: app-service:latest
    restart: "no"
    ports:
      - "4000:8080"
    environment:
      ENVIRONMENT: "local-docker"
      APPLICATION_CREDENTIALS: /app/secrets/key.json
    volumes:
      - ./secrets:/app/secrets/