Docker搭建 Gitlab CI Runner

迈不过友情╰ 2021-10-18 11:28 475阅读 0赞

### 文章目录 ###

*  Docker搭建 Gitlab CI Runner
 *   *  拉取 gitlab-runner 镜像
     *  启动 gitlab-runner容器
     *  注册runner
     *  定义项目构建流程
     *  获取日志
     *  停止并删除现有容器
     *  参考

# Docker搭建 Gitlab CI Runner #

docker中搭建Gitlab 的可以去看我的上一篇博文：[Docker搭建GitLab][Docker_GitLab]

Docker搭建 Gitlab CI Runner我们可以参考官网去安装：[https://docs.gitlab.com/runner/][https_docs.gitlab.com_runner] 或者 [https://docs.gitlab.com/runner/install/docker.html][https_docs.gitlab.com_runner_install_docker.html]

## 拉取 gitlab-runner 镜像 ##

docker pull gitlab/gitlab-runner:latest

[root@cc ~]# docker pull gitlab/gitlab-runner:latest
    latest: Pulling from gitlab/gitlab-runner
    5b7339215d1d: Already exists 
    14ca88e9f672: Already exists 
    a31c3b1caad4: Already exists 
    b054a26005b7: Already exists 
    3e632a4a443a: Pull complete 
    ba2134333bd9: Pull complete 
    62c364b5775c: Pull complete 
    0385484b9232: Pull complete 
    ea081b4b6dad: Pull complete 
    Digest: sha256:a2e3fd77ea1fad193871eafa151604fc24f3c20bef5c8bd93aa1488d1d1a293c
    Status: Downloaded newer image for gitlab/gitlab-runner:latest
    docker.io/gitlab/gitlab-runner:latest

## 启动 gitlab-runner容器 ##

docker run -d --name gitlab-runner --restart always \
      -v /var/run/docker.sock:/var/run/docker.sock \
      -v /srv/gitlab-runner/config:/etc/gitlab-runner \
      gitlab/gitlab-runner:latest

## 注册runner ##

首先我们创建一个新的项目

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2Nja2V2aW5jeWg_size_16_color_FFFFFF_t_70]

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2Nja2V2aW5jeWg_size_16_color_FFFFFF_t_70 1]

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2Nja2V2aW5jeWg_size_16_color_FFFFFF_t_70 2]

我们找到项目中的setting->CI/CD,然后找到Runners

这里面的信息我们一会注册runner的时候需要用到。

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2Nja2V2aW5jeWg_size_16_color_FFFFFF_t_70 3]

好，我们在命令行中执行如下命令：

docker exec -it gitlab-runner gitlab-ci-multi-runner register

然后就可以把上面的信息填入下来。

Please enter the gitlab-ci coordinator URL (e.g. https://gitlab.com/):
    http://192.168.174.129:10080/
    Please enter the gitlab-ci token for this runner:
    bsbaVaeqk3NbJ8W25qnx
    Please enter the gitlab-ci description for this runner:
    [cb7d680e0af0]: gitlab ci runner test demo
    Please enter the gitlab-ci tags for this runner (comma separated):
    demo
    ERROR: Registering runner... failed                 runner=bsbaVaeq status=couldn't execute POST against http://192.168.174.129:10080/api/v4/runners: Post http://192.168.174.129:10080/api/v4/runners: dial tcp 192.168.174.129:10080: getsockopt: no route to host

结果在注册的时候出现了错误，大概意思就是docker里面访问不到这个URL，我们可以试试直接在宿主机上访问URL，看看有什么结果

[root@cc ~]# curl -i http://192.168.174.129:10080/ci/api/v1/runners/register.json
    HTTP/1.1 401 Unauthorized
    Server: nginx
    Date: Sun, 11 Aug 2019 08:12:57 GMT
    Content-Type: application/json; charset=utf-8
    Content-Length: 61
    Connection: keep-alive
    Cache-Control: no-cache
    X-Request-Id: Scv8MK19Wr6
    X-Runtime: 0.071551
    
    { "error":"You need to sign in or sign up before continuing."}

然后我们进入docker里面试试访问这个URL有啥结果。貌似是不能访问的。

[root@cc ~]# docker exec -it gitlab-runner /bin/bash
    root@cb7d680e0af0:/# curl -i http://192.168.174.129:10080/ci/api/v1/runners/register.json
    curl: (7) Failed to connect to 192.168.174.129 port 10080: No route to host

我发现使用`systemctl restart docker`重启docker后也是无法访问，最后的解决方法就是关闭防火墙

systemctl stop firewalld

我也是通过查阅资料才解决的，你们可以参考：[https://www.jianshu.com/p/96aebba5d3cc][https_www.jianshu.com_p_96aebba5d3cc]

然后就可以发现在docker机器里面可以访问了。

[root@cc ~]# docker exec -it gitlab-runner /bin/bash
    root@cb7d680e0af0:/# curl -i 192.168.174.129:10080/ci/api/v1/runners/register.json
    HTTP/1.1 401 Unauthorized
    Server: nginx
    Date: Sun, 11 Aug 2019 08:45:27 GMT
    Content-Type: application/json; charset=utf-8
    Content-Length: 61
    Connection: keep-alive
    Cache-Control: no-cache
    X-Request-Id: XaJHE9gZvF9
    X-Runtime: 0.008333
    
    { "error":"You need to sign in or sign up before continuing."}root@cb7d680e0af0:/#

然后我们可以重新reset一下token，重新注册。

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2Nja2V2aW5jeWg_size_16_color_FFFFFF_t_70 4]

[root@cc ~]# docker exec -it gitlab-runner gitlab-ci-multi-runner register
    Runtime platform                                    arch=amd64 os=linux pid=66 revision=de7731dd version=12.1.0
    Running in system-mode.                            
                                                       
    Please enter the gitlab-ci coordinator URL (e.g. https://gitlab.com/):
    http://192.168.174.129:10080/
    Please enter the gitlab-ci token for this runner:
    nUdxufLPz8iCEzAeBt7U
    Please enter the gitlab-ci description for this runner:
    [cb7d680e0af0]: gitlab runner demo
    Please enter the gitlab-ci tags for this runner (comma separated):
    demo
    Registering runner... succeeded                     runner=nUdxufLP
    Please enter the executor: custom, shell, kubernetes, docker, docker-ssh, parallels, ssh, virtualbox, docker+machine, docker-ssh+machine:
    docker
    Please enter the default Docker image (e.g. ruby:2.6):
    maven:3-jdk-8
    Runner registered successfully. Feel free to start it, but if it's running already the config should be automatically reloaded!

【说明】

1、gitlab ci的地址以及token，从你要配置该runner到哪个项目，就去gitlab下该项目setting->CI/CD—>Runners下可以找到。

2、gitlab-ci tags这个很重要，在项目构建流程yaml文件里面指定tag，就是匹配使用哪个tag的runner，这里我定义了hwy，回头再配置文件里面就指定这个tag。

3、executor：执行者可以有很多种，这里我们使用docker，方便构建执行。

4、Docker image：构建Docker image时填写的image名称，根据项目代码语言不同，指定不同的镜像。我这里项目是java语言的，所以我使用官方maven:3-jdk-8镜像。

然后我们就注册完毕了。

过一会 runners 页面就会出现：

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2Nja2V2aW5jeWg_size_16_color_FFFFFF_t_70 5]

## 定义项目构建流程 ##

可以参考：[https://blog.csdn.net/aixiaoyang168/article/details/72168834][https_blog.csdn.net_aixiaoyang168_article_details_72168834]

我这里写了一个demo的.gitlab-ci.yml文件

stages:
      - build
      - test
      - deploy
    
    job_build:
      stage: build
      script:
        - mvn clean install
      only:
        - master
      tags:
        - demo
    
    job_test:
      stage: test
      script:
        - mvn test
      tags:
        - demo
    
    job_deploy:
      stage: deploy
      script:
        - echo "deploy over..."
      tags:
        - demo

说明：这个yml文件就是有3个job组成，依次为build、test、deploy。在执行这个CI流程时候，会分解成3个job依次执行。这里tags: demo就是指定使用哪个runner来执行这个job，我们也可以执行其他已注册可用的runner。更多关于gitlab的CI流程大家可以自行学习。

然后我们把代码和配置提交上去之后就会发现开始跑CI runner了。

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2Nja2V2aW5jeWg_size_16_color_FFFFFF_t_70 6]

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2Nja2V2aW5jeWg_size_16_color_FFFFFF_t_70 7]

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2Nja2V2aW5jeWg_size_16_color_FFFFFF_t_70 8]

但是最后发现在第一个job的时候就执行失败了。

fatal: unable to access 'http://gitlab-ci-token:[MASKED]@localhost:10080/root/gitlab_runner_demo.git/': Failed to connect to localhost port 10080: Connection refused

我们可以参考：  
[https://gitlab.com/gitlab-org/gitlab-runner/issues/1036][https_gitlab.com_gitlab-org_gitlab-runner_issues_1036]

还有 [https://blog.gezhiqiang.com/2017/03/01/gitlab-ce-install/][https_blog.gezhiqiang.com_2017_03_01_gitlab-ce-install]

还有 [https://github.com/ayufan/gitlab-ci-multi-runner/blob/master/docs/configuration/advanced-configuration.md][https_github.com_ayufan_gitlab-ci-multi-runner_blob_master_docs_configuration_advanced-configuration.md]

看到网上说了很多的解决方法：

进入runner的docker 容器中，然后修改配置`/etc/gitlab-runner/config.toml`,然后设置external\_url。  
external\_url是很重要的一环。GitLab的资源如图片、git仓库地址都是基于这个url。这个值默认是基于hostname的。需要把external\_url设置为一个可访问的主机域名或ip地址。 可以根据自己情况修改external\_url。可以直接设置成ip。

> 注意：external\_url 必须带如http:// 的协议头。

好像设置extra\_hosts 也是可以的。  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2Nja2V2aW5jeWg_size_16_color_FFFFFF_t_70 9]

看到还有说设置clone\_url的。  
![在这里插入图片描述][20190811192556357.png]

**最终我尝试的解决方法是**：

进入docker runner的容器

docker exec -it gitlab-runner /bin/bash

vim /etc/gitlab-runner/config.toml

加入配置

extra_hosts = ["localhost:192.168.174.129"]

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2Nja2V2aW5jeWg_size_16_color_FFFFFF_t_70 10]

然后重启一下docker。

systemctl restart docker

然后重新retry run一下我们的pipline job，最后经过一番折腾终于出结果了，折腾了我好几次。。。其实我看到网上有些人建议是不要把gitlab还有gitlab runner都装在一台机器上。  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2Nja2V2aW5jeWg_size_16_color_FFFFFF_t_70 11]

## 获取日志 ##

docker logs gitlab-runner

## 停止并删除现有容器 ##

docker stop gitlab-runner && docker rm gitlab-runner

## 参考 ##

[https://blog.csdn.net/aixiaoyang168/article/details/72168834][https_blog.csdn.net_aixiaoyang168_article_details_72168834]

[https://www.jianshu.com/p/4c82918b079b][https_www.jianshu.com_p_4c82918b079b]

[https://lutaonan.com/blog/gitlab-ci-runner/][https_lutaonan.com_blog_gitlab-ci-runner]

我的demo项目可以到我的gitee中下载：[https://gitee.com/cckevincyh/gitlab-runner-demo][https_gitee.com_cckevincyh_gitlab-runner-demo]

[Docker_GitLab]: https://blog.csdn.net/cckevincyh/article/details/99189561
[https_docs.gitlab.com_runner]: https://docs.gitlab.com/runner/
[https_docs.gitlab.com_runner_install_docker.html]: https://docs.gitlab.com/runner/install/docker.html
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2Nja2V2aW5jeWg_size_16_color_FFFFFF_t_70]: /images/20211018/a36cd5410b8648ce9e689924272d7e4d.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2Nja2V2aW5jeWg_size_16_color_FFFFFF_t_70 1]: /images/20211018/d00ecb3fa35e48329e8ad6c51e352f1f.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2Nja2V2aW5jeWg_size_16_color_FFFFFF_t_70 2]: /images/20211018/b831f4d2a21e4a79b7d20111e7556def.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2Nja2V2aW5jeWg_size_16_color_FFFFFF_t_70 3]: /images/20211018/8718536e4c42438a967c18acaf560958.png
[https_www.jianshu.com_p_96aebba5d3cc]: https://www.jianshu.com/p/96aebba5d3cc
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2Nja2V2aW5jeWg_size_16_color_FFFFFF_t_70 4]: /images/20211018/f53570b986f24ad788312c11ff52dc03.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2Nja2V2aW5jeWg_size_16_color_FFFFFF_t_70 5]: /images/20211018/4eadc5c8d05545c5ac98e6839836be5d.png
[https_blog.csdn.net_aixiaoyang168_article_details_72168834]: https://blog.csdn.net/aixiaoyang168/article/details/72168834
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2Nja2V2aW5jeWg_size_16_color_FFFFFF_t_70 6]: /images/20211018/5812950462d04df4b120626a791c834b.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2Nja2V2aW5jeWg_size_16_color_FFFFFF_t_70 7]: /images/20211018/b201162d7d2a44529befa98e41588e0c.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2Nja2V2aW5jeWg_size_16_color_FFFFFF_t_70 8]: /images/20211018/9b99d9b2cf4c4ab89f53a7b0fc812acd.png
[https_gitlab.com_gitlab-org_gitlab-runner_issues_1036]: https://gitlab.com/gitlab-org/gitlab-runner/issues/1036
[https_blog.gezhiqiang.com_2017_03_01_gitlab-ce-install]: https://blog.gezhiqiang.com/2017/03/01/gitlab-ce-install/
[https_github.com_ayufan_gitlab-ci-multi-runner_blob_master_docs_configuration_advanced-configuration.md]: https://github.com/ayufan/gitlab-ci-multi-runner/blob/master/docs/configuration/advanced-configuration.md
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2Nja2V2aW5jeWg_size_16_color_FFFFFF_t_70 9]: /images/20211018/886c687ce6dc4f31a1e86e6825af95f4.png
[20190811192556357.png]: /images/20211018/f764f88820ff48f1a42f451bd62a9ff6.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2Nja2V2aW5jeWg_size_16_color_FFFFFF_t_70 10]: /images/20211018/c1aeddb4a077406084c8a7ee9b63c7ff.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2Nja2V2aW5jeWg_size_16_color_FFFFFF_t_70 11]: /images/20211018/612b7d682b0e46539d57ce01bdee5a7a.png
[https_www.jianshu.com_p_4c82918b079b]: https://www.jianshu.com/p/4c82918b079b
[https_lutaonan.com_blog_gitlab-ci-runner]: https://lutaonan.com/blog/gitlab-ci-runner/
[https_gitee.com_cckevincyh_gitlab-runner-demo]: https://gitee.com/cckevincyh/gitlab-runner-demo