GitLab configure with low hardware requirements

gitlab.yml

version: "3.8"

# 基于 Arch Linux x86_64 的测试环境
# 单用户, 内存占用 2.5G 左右, CPU 需要 2 核, 日常占用 1%.
# 树莓派 4B 基于 ARM Cortex-A72, 理论上可以运行

services:
  gitlab:
    container_name: gitlab
    image: gitlab/gitlab-ce:16.8.1-ce.0 # for arm64v8: yrzr/gitlab-ce-arm64v8:16.5.8-ce.0
    ports:
      - "80:80"
      - "2222:22"
    volumes:
      - "./config:/etc/gitlab"
      - "./logs:/var/log/gitlab"
      - "./data:/var/opt/gitlab"
    restart: unless-stopped
    environment:
      TZ: Asia/Shanghai
      GITLAB_OMNIBUS_CONFIG: |
        external_url 'xxxxxxxxxxxxxx'
        gitlab_rails['time_zone'] = 'Asia/Shanghai'

        letsencrypt['enable'] = false

        # 启用电子邮件相关功能
        # gitlab_rails['smtp_enable'] = true
        # gitlab_rails['smtp_address'] = "smtp.office365.com"
        # gitlab_rails['smtp_port'] = 587
        # gitlab_rails['smtp_user_name'] =
        # gitlab_rails['smtp_password'] =
        # gitlab_rails['smtp_domain'] = "smtp.office365.com"
        # gitlab_rails['smtp_authentication'] = "login"
        # gitlab_rails['smtp_enable_starttls_auto'] = true

        关闭电子邮件相关功能
        gitlab_rails['smtp_enable'] = false
        gitlab_rails['gitlab_email_enabled'] = false
        gitlab_rails['incoming_email_enabled'] = false

        # Terraform
        gitlab_rails['terraform_state_enabled'] = false

        # Usage Statistics
        gitlab_rails['usage_ping_enabled'] = false
        gitlab_rails['sentry_enabled'] = false
        grafana['reporting_enabled'] = false

        # 关闭容器仓库功能
        gitlab_rails['gitlab_default_projects_features_container_registry'] = false
        gitlab_rails['registry_enabled'] = false
        registry['enable'] = false
        registry_nginx['enable'] = false

        # 包仓库
        gitlab_rails['packages_enabled'] = false
        gitlab_rails['dependency_proxy_enabled'] = false

        # GitLab KAS
        gitlab_kas['enable'] = false
        gitlab_rails['gitlab_kas_enabled'] = false

        # Mattermost
        mattermost['enable'] = false
        mattermost_nginx['enable'] = false

        # Kerberos
        gitlab_rails['kerberos_enabled'] = false
        sentinel['enable'] = false

        # GitLab Pages
        gitlab_pages['enable'] = false
        pages_nginx['enable'] = false

        # 禁用 PUMA 集群模式
        puma['worker_processes'] = 0
        puma['min_threads'] = 1
        puma['max_threads'] = 2

        # 降低后台守护进程并发数
        sidekiq['max_concurrency'] = 5

        gitlab_ci['gitlab_ci_all_broken_builds'] = false
        gitlab_ci['gitlab_ci_add_pusher'] = false

        # 关闭监控
        prometheus_monitoring['enable'] = false
        alertmanager['enable'] = false
        node_exporter['enable'] = false
        redis_exporter['enable'] = false
        postgres_exporter['enable'] = false
        pgbouncer_exporter['enable'] = false
        gitlab_exporter['enable'] = false
        grafana['enable'] = false
        sidekiq['metrics_enabled'] = false