简介

GitLab-CI
 GitLab-CI就是一套配合GitLab应用的继续集成系统（当然，还有其它的继续集成系统，同样能够配合GitLab应用，比方Jenkins）。而且GitLab8.0当前的版本是默认集成了GitLab-CI并且默认启用的。
GitLab-Runner
 GitLab-Runner是配合GitLab-CI进行应用的。个别地，GitLab外面的每一个工程都会定义一个属于这个工程的软件集成脚本，用来自动化地实现一些软件集成工作。当这个工程的仓库代码产生变动时，比方有人push了代码，GitLab就会将这个变动告诉GitLab-CI。这时GitLab-CI会找出与这个工程相关联的Runner，并告诉这些Runner把代码更新到本地并执行预约义好的执行脚本。
  • 指标：代码提交到GitLab上，由GitLab的CI性能主动实现部署。
  • 原理：GitLab在接管到代码提交事件时，通过.gitlab-ci.yml的配置信息与对应节点上的runner进行交互。

装置部署

planA （内网可用）

  • 下载&&装置
[root@gitlab ~]# wget  https://mirrors.tuna.tsinghua.edu.cn/gitlab-ce/yum/el7/gitlab-ce-12.0.1-ce.0.el7.x86_64.rpm--2021-08-16 10:11:02--  https://mirrors.tuna.tsinghua.edu.cn/gitlab-ce/yum/el7/gitlab-ce-12.0.1-ce.0.el7.x86_64.rpmResolving mirrors.xxxxe.com (mirrors.xxxxe.com)... 10.130.104.43Connecting to mirrors.xxxxe.com (mirrors.xxxxe.com)|10.130.104.43|:443... connected.HTTP request sent, awaiting response... 200 OKLength: 32189634 (31M) [application/x-redhat-package-manager]Saving to: ‘gitlab-ce-12.0.1-ce.0.el7.x86_64.rpm’100%[=============================================================================================================================>] 32,189,634  2.23MB/s   in 11s    2021-08-16 10:11:13 (2.80 MB/s) - ‘gitlab-ce-12.0.1-ce.0.el7.x86_64.rpm’ saved [32189634/32189634][root@gitlab ~]# lsanaconda-ks.cfg  gitlab-ce-12.0.1-ce.0.el7.x86_64.rpm[root@gitlab ~]# rpm -ivh gitlab-ce-12.0.1-ce.0.el7.x86_64.rpm warning: gitlab-ce-12.0.1-ce.0.el7.x86_64.rpm: Header V4 RSA/SHA512 Signature, key ID 880721d4: NOKEYerror: Failed dependencies:    git is needed by gitlab-runner-12.0.1-1.x86_64[root@gitlab ~]# cat /etc/redhat-releaseCentOS Linux release 7.4.1708 (Core) [root@gitlab ~]# rpm -ivh gitlab-ce-12.0.1-ce.0.el7.x86_64.rpm   --nodeps --forcewarning: gitlab-ce-12.0.1-ce.0.el7.x86_64.rpm: Header V4 RSA/SHA512 Signature, key ID 880721d4: NOKEYPreparing...                          ################################# [100%]Updating / installing...   1:gitlab-runner-12.0.1-1           ################################# [100%]GitLab Runner: creating gitlab-runner...
  • 批改gitlab-runner 启动用户
[root@gitlab ~]# ps -ef | grep runnerroot      3739     1  0 10:23 ?        00:00:00 /usr/lib/gitlab-runner/gitlab-runner run --working-directory /home/gitlab-runner --config /etc/gitlab-runner/config.toml --service gitlab-runner --syslog --user gitlab-runnerroot      3801  3780  0 10:49 pts/0    00:00:00 grep --color=auto runner[root@gitlab ~]# gitlab-runner uninstallRuntime platform                                    arch=amd64 os=linux pid=3802 revision=0e5417a3 version=12.0.1[root@gitlab ~]# gitlab-runner install --working-directory /root --user rootRuntime platform                                    arch=amd64 os=linux pid=3821 revision=0e5417a3 version=12.0.1[root@gitlab ~]# gitlab-runner restartRuntime platform                                    arch=amd64 os=linux pid=3853 revision=0e5417a3 version=12.0.1[root@gitlab ~]# gitlab-runner statusRuntime platform                                    arch=amd64 os=linux pid=3868 revision=0e5417a3 version=12.0.1gitlab-runner: Service is running![root@gitlab ~]# ps -ef | grep gitlab-runnerroot      3861     1  0 10:51 ?        00:00:00 /usr/lib/gitlab-runner/gitlab-runner run --working-directory /root --config /etc/gitlab-runner/config.toml --service gitlab-runner --syslog --user root
  • 注册
[root@gitlab ~]# gitlab-ci-multi-runner registerRuntime platform                                    arch=amd64 os=linux pid=3878 revision=0e5417a3 version=12.0.1Running in system-mode.                                                                               Please enter the gitlab-ci coordinator URL (e.g. https://gitlab.com/):https://gitlab.xxxx.com                    #gitlab urlPlease enter the gitlab-ci token for this runner:Gxxxxxxxxxxxxxxxx7                            #gitlab tokenPlease enter the gitlab-ci description for this runner:[gitlab]: wuhan-tongj-10.82.16.44Please enter the gitlab-ci tags for this runner (comma separated):wuhan-tongj-10.82.16.44Registering runner... succeeded                     runner=GLNByiz6Please enter the executor: shell, virtualbox, docker+machine, docker-ssh+machine, docker, parallels, kubernetes, docker-ssh, ssh:shell                                          #脚本执行的语言用处等Runner registered successfully. Feel free to start it, but if it's running already the config should be automatically reloaded!

planB (外网可用)

    1. 装置Runner
gitlab-runner下载地址：https://mirrors.tuna.tsinghua.edu.cn/gitlab-runner/yumCC : 区别el6和el7, 去相应的目录下下载即可rpm -ivh gitlab-runner-10.5.0-1.x86_64.rpm

还有一种形式为脚本装置（有外网拜访权限下能够应用）：

curl -L https://packages.gitlab.com/install/repositories/runner/gitlab-ci-multi-runner/script.rpm.sh | sudo bashyum install gitlab-ci-multi-runner
    1. 配置Runner（可选）

默认状况，Runner是通过gitlab-runner的这个用户来执行一系列操作，其工作目录也是在gitlab-runner的用户目录上面。如果应用默认gitlab-runner用户操作一些文件时常常会遇到权限问题，就须要给gitlab-runner赋权。咱们通过以下形式批改。

gitlab-runner uninstall # 删除服务
gitlab-runner install --working-directory /root --user root # 增加服务，别离制订工作目录和执行用户为/root和root
gitlab-runner restart # 重启服务
gitlab-runner status # 查看状态
输入：gitlab-runner: Service is running!
ps -ef | grep gitlab-runner # 查看是否失效
输入：root 17454 1 0 Mar23 ? 01:18:03 /usr/bin/gitlab-runner run --working-directory
/home/jack --config /etc/gitlab-runner/config.toml --service gitlab-runner --syslog --user jack
    1. 注册runner
      把该Runner信息注册给GitLab的CI服务，通知CI”我是谁，我能做什么”。
      先关上GitLab上须要主动部署的我的项目界面，找到该项目标 Settings –> CI/CD –> Runners settings 。不同版本的GitLab界面可能有些差异。

在红色的区域能够看到URL和Token，这两个加起来就是该项目标惟一信息了。而后咱们Runner服务的root用户下执行以下命令

# gitlab-runner registerWARNING: Running in user-mode.                     WARNING: The user-mode requires you to manually start builds processing: WARNING: $ gitlab-runner run                       WARNING: Use sudo for system-mode:                 WARNING: $ sudo gitlab-runner...                   Please enter the gitlab-ci coordinator URL (e.g. https://gitlab.com/):http://gitlab.xxxx.com         # 填写方才看到的URLPlease enter the gitlab-ci token for this runner:Cxxxxxxxxxxxxx4                # 填写方才看到的TokenPlease enter the gitlab-ci description for this runner:[dev_srv]:iuh_801_testlab_master    # 形容一下该runner，该和.gitlab-ci.yml文件外面配置的tags雷同即可Please enter the gitlab-ci tags for this runner (comma separated):tags_of_iuh_801_testlab_master      # 该runner起个名字Whether to run untagged builds [true/false]:[false]:                            # 间接回车Whether to lock the Runner to current project [true/false]:[true]:                             # 间接回车Registering runner... succeeded                     runner=eHMqXjw9Please enter the executor: shell, ssh, docker+machine, docker, docker-ssh, parallels, virtualbox, docker-ssh+machine, kubernetes:shell                               # 填写runner执行时须要应用什么执行器，个别都填shell或者docker。Runner registered successfully. Feel free to start it, but if it's running already the config should be automatically reloaded!![](/media//202108/2021-08-12_100406.png)这样就实现了Runner与CI之间的信息互注册。Runner晓得了本人须要操作哪个我的项目，CI也晓得了该runner的存在。接着刷新一下Runners settings界面，就会看到新注册的Runner了。后面有一个绿色的圆就代表注册胜利。
    1. 配置yml文件
      在我的项目根目录下增加一个.gitlab-ci.yml 文件。内容如下：
stages:  - update_masterupdate_production_env:  stage: update_master  script:    - cd /u02/nginx/html/mercial.iu95522.com    - git pull origin master    - if [ -f "system/config.php" ]; then    -   rm -rf system/config.php    - fi    - cp system/config.php.master system/config.php    - chown -R nginx.nginx *  only:    - master  tags:    - tags_of_iuh_801_mercial.iu95522.com_masterstages下的deploy阐明在代码提交后CI须要执行deploy节点的内容。deploy的script就是一个个shell命令，这里须要留神每个命令都以杠+空格结尾。only：只有向dev分支提交代码时才失效。tags：只有领有该tags的Runner才须要执行