frappe_docker/overrides/compose.postgres.yml

services:
  backend:
    image: frappe/frappe-worker:${FRAPPE_VERSION}
    environment:
      DB_HOST: db
      DB_PORT: 5432
    depends_on:
      - db

  db:
    image: postgres:14.1
    healthcheck:
      test: pg_isready
      interval: 1s
      retries: 15
    command: []
    environment:
      POSTGRES_PASSWORD: ${DB_PASSWORD}
    volumes:
      - db:/var/lib/postgresql