services:
  gitlab:
    image: 'gitlab/gitlab-ce:latest'
    container_name: gitlab-server
    restart: always
    networks:
      - gitlab_net

    environment:
      GITLAB_OMNIBUS_CONFIG: |
        external_url '${GITLAB_EXTERNAL_URL}'
        gitlab_rails['initial_root_password'] = '${GITLAB_ROOT_PASSWORD}'

        letsencrypt['enable'] = ${LETSENCRYPT_ENABLE}
        letsencrypt['contact_emails'] = ['${GITLAB_ROOT_EMAIL}']
        letsencrypt['auto_renew'] = true
        letsencrypt['auto_renew_hour'] = 0
        letsencrypt['auto_renew_minute'] = 30
        letsencrypt['auto_renew_day_of_month'] = "*/7"

        gitlab_rails['gitlab_shell_ssh_port'] = ${SSH_PORT}

        gitlab_rails['smtp_enable'] = true
        gitlab_rails['smtp_address'] = "${SMTP_ADDRESS}"
        gitlab_rails['smtp_port'] = ${SMTP_PORT}
        gitlab_rails['smtp_user_name'] = "${SMTP_USER}"
        gitlab_rails['smtp_password'] = "${SMTP_PASSWORD}"
        gitlab_rails['smtp_domain'] = "${SMTP_DOMAIN}"
        gitlab_rails['smtp_authentication'] = "login"
        gitlab_rails['smtp_enable_starttls_auto'] = true
        gitlab_rails['smtp_tls'] = false

        gitlab_rails['gitlab_email_from'] = '${SMTP_FROM}'
        gitlab_rails['gitlab_email_reply_to'] = '${SMTP_FROM}'

        # ==========================================
        # MONITORING & METRICS
        # ==========================================
        prometheus['enable'] = ${GITLAB_MONITORING_ENABLE}
        alertmanager['enable'] = ${GITLAB_MONITORING_ENABLE}
        gitlab_exporter['enable'] = ${GITLAB_MONITORING_ENABLE}
        node_exporter['enable'] = ${GITLAB_MONITORING_ENABLE}
        redis_exporter['enable'] = ${GITLAB_MONITORING_ENABLE}
        postgres_exporter['enable'] = ${GITLAB_MONITORING_ENABLE}

        # ==========================================
        # HIGH PERFORMANCE TUNING
        # ==========================================
        puma['worker_processes'] = ${PUMA_WORKERS}
        puma['min_threads'] = ${PUMA_THREADS}
        puma['max_threads'] = ${PUMA_THREADS}

        sidekiq['max_concurrency'] = ${SIDEKIQ_CONCURRENCY}

        postgresql['shared_buffers'] = "${POSTGRES_SHARED_BUFFERS}MB"
        postgresql['max_worker_processes'] = ${POSTGRES_WORKERS}

    ports:
      - '${HTTP_PORT}:80'
      - '${HTTPS_PORT}:443'
      - '${SSH_PORT}:22'
    volumes:
      - '${GITLAB_HOME}/config:/etc/gitlab'
      - '${GITLAB_HOME}/logs:/var/log/gitlab'
      - '${GITLAB_HOME}/data:/var/opt/gitlab'

    shm_size: '${POSTGRES_SHARED_BUFFERS}m'

  gitlab-runner:
    image: gitlab/gitlab-runner:latest
    container_name: gitlab-runner
    restart: always
    networks:
      - gitlab_net

    depends_on:
      - gitlab

    volumes:
      - /var/run/docker.sock:/var/run/docker.sock
      - ./runner-config:/etc/gitlab-runner

networks:
  gitlab_net:
    name: gitlab_net
    driver: bridge