拉取docker镜像
docker pull gitlab/gitlab-ce
启动gitlab
docker run --detach \
--hostname gitlab.example.com \
--publish 443:443 --publish 80:80 --publish 22:22 \
--name gitlab \
--restart always \
--shm-size 256m \
gitlab/gitlab-ce:latest
官网安装方法 https://docs.gitlab.com/ee/install/docker.html#install-gitlab-using-docker-engine