[root@sannian data-ci]# docker search gitlab-runner 
[root@sannian data-ci]# docker pull gitlab/gitlab-runner
[root@sannian data-ci]# docker run -d -v /data-ci/:/data-ci/ --restart=always --name gitlab-runner gitlab/gitlab-runner

然后注册：

[root@sannian data-ci]# docker exec -it 80ac801e633b gitlab-runner register
Runtime platform                                    arch=amd64 os=linux pid=16 revision=cf91d5e1 version=11.4.2
Running in system-mode.                            
                                                   
Please enter the gitlab-ci coordinator URL (e.g. https://gitlab.com/):
http://47.99.145.156:9999/
Please enter the gitlab-ci token for this runner:
Ah-B41xF53-R4M6bamrE
Please enter the gitlab-ci description for this runner:
[80ac801e633b]: 
Please enter the gitlab-ci tags for this runner (comma separated):
my-erp
Registering runner... succeeded                     runner=Ah-B41xF
Please enter the executor: docker, docker-ssh, parallels, virtualbox, docker-ssh+machine, shell, ssh, docker+machine, kubernetes:
shell
Runner registered successfully. Feel free to start it, but if it's running already the config should be automatically reloaded!

这后就是gitlab报错

然后就是发现用户是--user=gitlab-runner

[root@sannian data-ci]# ps -ef | grep gitlab-runner
root     31028 30984  0 10:30 ?        00:00:00 /usr/bin/dumb-init /entrypoint run --user=gitlab-runner --working-directory=/home/gitlab-runner
root     31091 31028  0 10:30 ?        00:00:00 gitlab-runner run --user=gitlab-runner --working-directory=/home/gitlab-runner
root     31155 31017  0 10:30 pts/2    00:00:00 grep --color=auto gitlab-runner

为了解决这个问题
进入容器

[root@sannian data-ci]# docker exec -it 80ac801e633b /bin/bash
root@80ac801e633b:/# su gitlab-runner
gitlab-runner@80ac801e633b:/$ ssh-keygen 
Generating public/private rsa key pair.
Enter file in which to save the key (/home/gitlab-runner/.ssh/id_rsa): 
Enter passphrase (empty for no passphrase): 
Enter same passphrase again: 
Your identification has been saved in /home/gitlab-runner/.ssh/id_rsa.
Your public key has been saved in /home/gitlab-runner/.ssh/id_rsa.pub.
The key fingerprint is:
SHA256:SzbhlkF6U+eHCSqToSnHzrivfbLEl+zJLk0G3KUsI3M gitlab-runner@80ac801e633b
The key's randomart image is:
+---[RSA 2048]----+
|      . . o .    |
|   . o =.o + o   |
|  ..=o=o*   + .  |
|  o*E += =   .   |
|  .+o+  S        |
|   o .o= o       |
|  . o++ .        |
|   +o+o.         |
|  ..+*=          |
+----[SHA256]-----+
gitlab-runner@80ac801e633b:/$ vim /home/gitlab-runner/.ssh/id_rsa.pub

把密复制到远程主机上。光这个还不行，还要在容器里测试一下

gitlab-runner@80ac801e633b:/$ scp -r /data-ci/eatjoys-front.sh  root@47.99.89.247://data-ci/eatjoys-front.sh
The authenticity of host '47.99.89.247 (47.99.89.247)' can't be established.
ECDSA key fingerprint is SHA256:a6E2UXjP1qIZLmHAS6LAfyeUjsidFhTCZxefKC4cDGk.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added '47.99.89.247' (ECDSA) to the list of known hosts.
eatjoys-front.sh

第一次，一定要输入一下yes 才会通过， 然后看gitlab上

通过了，这样就可以继续下一步 写脚本咯~！