---
services:
  gitea:
    image: docker.gitea.com/gitea:1.23.6
    pull_policy: every_12h
    environment:
      - DB_TYPE=postgres
      - DB_HOST=db:5432
      - DB_NAME=gitea
      - DB_USER=gitea
      - DB_PASSWD=gitea
    restart: unless-stopped
    volumes:
      - git_data:/data
    ports:
      - '3000:3000'
  db:
    image: postgres:alpine
    environment:
      - POSTGRES_USER=gitea
      - POSTGRES_PASSWORD=gitea
      - POSTGRES_DB=gitea
    restart: unless-stopped
    volumes:
      - db_data:/var/lib/postgresql/data
    expose:
      - 5432
volumes:
  db_data:
  git_data:
...