docker-samples/forgejo_tailscale/docker-compose.yml

services:

  tailscale:
    hostname: ${TAILNET_NAME}             
    image: tailscale/tailscale
    volumes:
      - ./data/tailscale:/var/lib/tailscale
      - ./ts-serve.json:/config/ts-serve.json:ro
      - /dev/net/tun:/dev/net/tun         
    cap_add:                          
      - net_admin
      - sys_module
    environment:
      TS_AUTHKEY: ${TS_AUTHKEY}
      TS_SERVE_CONFIG: /config/ts-serve.json
      TS_AUTH_ONCE: true
      TS_STATE_DIR: /var/lib/tailscale
      TS_HOST: ${TAILNET_NAME}
    restart: unless-stopped

  server:
    image: codeberg.org/forgejo/forgejo:${FORGEJO_TAG}
    command: >-
      bash -c '
      /bin/s6-svscan /etc/s6 &
      sleep 10 ;
      su -c "forgejo forgejo-cli actions register --secret ${SHARED_SECRET}" git ;
      su -c "forgejo admin user create --admin --username ${ROOT_USER} --password ${ROOT_PASSWORD} --email ${ROOT_EMAIL}" git ;
      sleep infinity
      '      
    environment:
      # https://forgejo.org/docs/latest/admin/config-cheat-sheet/
      - RUN_MODE=prod
      - USER_UID=1000
      - USER_GID=1000
      - APP_NAME=${APP_NAME}
      - FORGEJO__server__ROOT_URL=https://${FORGEJO_HOSTNAME}
      # Prevent the installation wizard from running
      - FORGEJO__security__INSTALL_LOCK=true
      # Do we allow new signups?
      - FORGEJO__service__DISABLE_REGISTRATION=${DISABLE_REGISTRATION}
      # DB Setup
      - FORGEJO__database__DB_TYPE=postgres
      - FORGEJO__database__HOST=db:5432
      - FORGEJO__database__NAME=gitea
      - FORGEJO__database__USER=gitea
      - FORGEJO__database__PASSWD=${FORGEJO_DB_PASSWORD}
      # Mail Setup
      - FORGEJO__mailer__ENABLED=${MAIL_ENABLED}
      - FORGEJO__mailer__FROM=${MAIL_FROM}
      - FORGEJO__mailer__PROTOCOL=${MAIL_SMTP_PROTOCOL}
      - FORGEJO__mailer__SMTP_ADDR=${MAIL_SMTP_ADDR}
      - FORGEJO__mailer__SMTP_PORT=${MAIL_SMTP_PORT}
      - FORGEJO__mailer__USER=${MAIL_SMTP_USER}
      - FORGEJO__mailer__PASSWD=${MAIL_SMTP_PASSWD}
      # Git rid of the splash screen and just show a project listing
      # on the homepage
      - FORGEJO__server__LANDING_PAGE=explore
    restart: always
    volumes:
      - ./data/data:/data
      - /etc/timezone:/etc/timezone:ro
      - /etc/localtime:/etc/localtime:ro
    depends_on:
      - db

  db:
    image: postgres:13
    restart: always
    environment:
      - POSTGRES_USER=gitea
      - POSTGRES_PASSWORD=${FORGEJO_DB_PASSWORD}
      - POSTGRES_DB=gitea
    volumes:
      - ./data/postgres:/var/lib/postgresql/data

  # Runner configuration is fairly complex and uses Docker-in-Docker
  # Pulled from this example:
  #  https://code.forgejo.org/forgejo/runner/src/branch/main/examples/docker-compose/compose-forgejo-and-runner.yml

  runner-register:
    image: code.forgejo.org/forgejo/runner:${FORGEJO_RUNNER_TAG}
    links:
      - docker-in-docker
      - server
    environment:
      DOCKER_HOST: tcp://docker-in-docker:2376
    volumes:
      - ./data/runner-data:/data
    user: 0:0
    command: >-
      bash -ec '
      while : ; do
        forgejo-runner create-runner-file --connect --instance http://server:3000 --name ${RUNNER_NAME} --secret ${SHARED_SECRET} && break ;
        sleep 1 ;
      done ;
      sed -i -e "s|\"labels\": null|\"labels\": ${RUNNER_LABELS}|" .runner ;
      forgejo-runner generate-config > config.yml ;
      sed -i -e "s|network: .*|network: host|" config.yml ;
      sed -i -e "s|^  labels: \[\]$$|  labels: ${RUNNER_LABELS}|" config.yml ;
      sed -i -e "s|^  envs:$$|  envs:\n    DOCKER_HOST: tcp://docker:2376\n    DOCKER_TLS_VERIFY: 1\n    DOCKER_CERT_PATH: /certs/client|" config.yml ;
      sed -i -e "s|^  options:|  options: -v /certs/client:/certs/client|" config.yml ;
      sed -i -e "s|  valid_volumes: \[\]$$|  valid_volumes:\n    - /certs/client|" config.yml ;
      chown -R 1000:1000 /data
      '      

  runner-daemon:
    image: code.forgejo.org/forgejo/runner:4.0.1
    links:
      - docker-in-docker
      - server
    environment:
      DOCKER_HOST: tcp://docker:2376
      DOCKER_CERT_PATH: /certs/client
      DOCKER_TLS_VERIFY: "1"
    volumes:
      - ./data/runner-data:/data
      - ./data/docker_certs:/certs
    command: >-
      bash -c '
      while : ; do test -w .runner && forgejo-runner --config config.yml daemon ; sleep 1 ; done
      '      

  docker-in-docker:
    image: docker:dind
    hostname: docker  # Must set hostname as TLS certificates are only valid for docker or localhost
    privileged: true
    environment:
      DOCKER_TLS_CERTDIR: /certs
      DOCKER_HOST: docker-in-docker
    volumes:
      - ./data/docker_certs:/certs