一、安装docker-compose步骤可参考本博客其他文章

二、这里的ssl证书是使用letsencrypt生成，
可参考文档https://my.oschina.net/u/3042999/blog/1858891

https://wzfou.com/letsencrypt/

三、创建容器网络
docker network create netgitlab

在external_url参数的域名后带上端口号，注意需要把非标准的端口号暴露出来，即3001:3001

如不在域名后面带上端口，可以传入参数：nginx['listen_port'] = 端口号,来指定nginx的监听端口

值得注意的是不要忘记将自定义端口号进行映射，如使用非标准的80或443端口，不按照上述方式配置

在git clone界面域名之后将不带端口号，配置正确如下图所示

[root@hadoop01 gitlab]# more docker-compose.yml

version: "2.4"

networks:

  netgitlab:

    external: true

services:

  ol-gitlab:

    image: gitlab/gitlab-ce:11.11.0-ce.0

    container_name: ol-gitlab

    hostname: ol-gitlab

    ports:

      - "3088:80"

      - "3001:3001"

      - "10022:22"

    networks:

      - netgitlab

    volumes:

      - "/etc/localtime:/etc/localtime"

      - "./config:/etc/gitlab"

      - "./logs:/var/log/gitlab"

      - "./data:/var/opt/gitlab"

      - "./data/gitlab-backup:/data/gitlab-backup"

    environment:

      GITLAB_OMNIBUS_CONFIG: |

        unicorn['worker_timeout'] = 60

        unicorn['worker_processes'] = 5

        unicorn['worker_memory_limit_min'] = "200 * 1 << 20"

        unicorn['worker_memory_limit_max'] = "300 * 1 << 20"

        sidekiq['concurrency'] = 10

        external_url 'https://git.xxxxx.com:3001'

        gitlab_rails['backup_path'] = "/data/gitlab-backup"

        gitlab_rails['backup_keep_time'] = 1296000

        gitlab_rails['time_zone'] = 'Asia/Shanghai'

        gitlab_rails['backup_archive_permissions'] = 0644

        gitlab_rails['gitlab_shell_ssh_port'] = 10022

        nginx['enable'] = true

        nginx['client_max_body_size'] = '10240m'

        nginx['redirect_http_to_https'] = true

        nginx['ssl_certificate'] = "/etc/gitlab/ssl/fullchain.cer"

        nginx['ssl_certificate_key'] = "/etc/gitlab/ssl/git.xxxx.com.key"

        nginx['ssl_ciphers'] = "ECDHE-RSA-AES256-GCM-SHA384:ECDHE-RSA-AES128-GCM-SHA256"

        nginx['ssl_prefer_server_ciphers'] = "on"

        nginx['ssl_protocols'] = "TLSv1.1 TLSv1.2"

        nginx['ssl_session_cache'] = "builtin:1000  shared:SSL:10m"

        nginx['listen_addresses'] = ["0.0.0.0"]

        nginx['http2_enabled'] = true

        postgresql['max_worker_processes'] = 8

        postgresql['shared_buffers'] = "256MB"

    mem_limit: 4096m

    restart: always

    user: root

docker-compose up -d