Gitea is a very fast and easy to setup and maintan Git- Server, which has lots of Features like github also has.

my docker-compose.yml looks like this:

docker@server:~/docker_compose/dtext_gitea> cat docker-compose.yml

services:
# https://docs.gitea.com/installation/install-with-docker-rootless/
  gitea:
    image: docker.gitea.com/gitea:latest-rootless
    restart: unless-stopped
    volumes:
      - gitea_data:/var/lib/gitea
      - gitea_config:/etc/gitea
      - /etc/timezone:/etc/timezone:ro
      - /etc/localtime:/etc/localtime:ro
    ports:
      - "3000:3000"
      - "2222:2222"
    environment:
      GITEA__service__DISABLE_REGISTRATION: true
    networks:
      - dtext_default

volumes:
    gitea_data:
    gitea_config:

networks:
  dtext_default:
    external: true