docker升级gitlab/gitlab-ce:11.7.5-ce.0到gitlab/gitlab-ce:12.1.0-ce.0

官方给出的解决办法：

11.7.5-->11.11.5-->12.1.0

docker-compose.yaml文件如下

version: '3.0'
services:
  gitlab:
     container_name: gitlab
     image: gitlab/gitlab-ce:11.7.5-ce.0
#   数据恢复后，先停止gitlab
#进行第一次升级，升级到主版本最高次版本(可在docker hub网站查找)
#   image: gitlab/gitlab-ce:11.11.5-ce.0
#升级到次版本最高，停止gitlab，升级到最高版本
 #  image: gitlab/gitlab-ce:12.1.0-ce.0
     restart: always
     environment:
      GITLAB_OMNIBUS_CONFIG: |
            external_url 'http://10.0.0.3:81'
     ports:
      - '81:81'
      - '443:433'
      - '2224:22'
     volumes:
      - /opt/gitlab/config:/etc/gitlab 
      - /opt/gitlab/logs:/var/log/gitlab 
      - /opt/gitlab/data:/var/opt/gitlab  
     networks:
      - gitlab_net
networks:
   gitlab_net:

gitlab数据备份

gitlab-rake gitlab:backup:create

gitlab数据恢复

gitlab-rake gitlab:backup:restore BACKUP=1563909349_2019_07_23_11.7.5

停止gitlab

docker-compose down

修改gitlab密码

gitlab-rails console production
user = User.where(id:1).first
user.password='123456'
user.save

gitlab升级

docker-compose up -d