Jenkins快速设置

git 准备

主: 192.168.43.101
其他节点: 192.168.43.102, 192.168.43.103

安装过程省略 yum install -y git

主节点创建 git 用户

[root@k8s01 ~]# useradd git

[root@k8s01 ~]# passwd git
Changing password for user git.
New password:
Retype new password:
passwd: all authentication tokens updated successfully.

[root@k8s01 ~]# cat /etc/ssh/sshd_config  | grep AuthorizedKeysFile  # 查看免密登陆文件路径
AuthorizedKeysFile      .ssh/authorized_keys

[root@k8s01 ~]# su - git
Last login: Sun Jan 10 01:34:27 CST 2021 on pts/0

[git@k8s01 ~]$ pwd
/home/git

[git@k8s01 ~]$ mkdir .ssh && chmod 700 .ssh/ && touch .ssh/authorized_keys && chmod 600 .ssh/authorized_keys
[git@k8s01 ~]$ echo "ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQDn2Q62b5GthMIqnJb0E+N1pd/mhigDpL+t702SHhaxHrPvUY3QNC/1nLJFA2OkjYJIKAs5xlxlh8afRfcyMtApOJGqXA1swLSMK97+cH8cQXMjFTlKSoKL6qfi9l7q0XC56rLBwkXt+9U9JdaD8ruW3fdNn6VC24ocWvYbI/XpFPArB4u9nbgeko+oLFp0q+MBc33Ucp6mkrs3Ytsp5kxolgNEUIXz3/sqpKH4LXioMRAtSx3F3MjarZEUmAsH0hDUQBXLV+u3Zyd+4lXZA9ALwz1k2l/R9p58zyAufR8EvvgWCriZMLeCsZdtRDPwsjFaJ1Qo3HPwKZk08q5ClBTL root@k8s02" > .ssh/authorized_keys  # 下一步操作生成的文件

[git@k8s01 ~]$ mkdir repo/app.git/ && cd repo/app.git/ && git --bare init  # 初始化镜像仓库

备节点设置免密登录

[root@k8s02 test_git]# ssh-keygen -t rsa -f /root/.ssh/id_rsa -N ''
Generating public/private rsa key pair.
Your identification has been saved in /root/.ssh/id_rsa.
Your public key has been saved in /root/.ssh/id_rsa.pub.
The key fingerprint is:
SHA256:ozomMf9cpuEe0xWbhecz4UDwmPkNlsdw27YuLlnmXVw root@k8s02
The key's randomart image is:
+---[RSA 2048]----+
|        ..o .    |
|         * * o   |
|        + O B o  |
|         o & o .E|
|        S = * ...|
|  o    o o  o+  o|
|   +  = +  =.... |
|  . ++ B  o....  |
|   o.+*    ..    |
+----[SHA256]-----+

[root@k8s02 test_git]# cat  /root/.ssh/id_rsa.pub
ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQDn2Q62b5GthMIqnJb0E+N1pd/mhigDpL+t702SHhax                                                       HrPvUY3QNC/1nLJFA2OkjYJIKAs5xlxlh8afRfcyMtApOJGqXA1swLSMK97+cH8cQXMjFTlKSoKL6qfi                                                       9l7q0XC56rLBwkXt+9U9JdaD8ruW3fdNn6VC24ocWvYbI/XpFPArB4u9nbgeko+oLFp0q+MBc33Ucp6m                                                       krs3Ytsp5kxolgNEUIXz3/sqpKH4LXioMRAtSx3F3MjarZEUmAsH0hDUQBXLV+u3Zyd+4lXZA9ALwz1k                                                       2l/R9p58zyAufR8EvvgWCriZMLeCsZdtRDPwsjFaJ1Qo3HPwKZk08q5ClBTL root@k8s02


[root@k8s02 test_git]# git clone [email protected]:/home/git/repo/app.git
Cloning into 'app'...
warning: You appear to have cloned an empty repository.

[root@k8s02 test_git]# ls -al
total 0
drwxr-xr-x  3 root root  17 Jan 10 01:54 .
dr-xr-x---. 5 root root 215 Jan 10 01:25 ..
drwxr-xr-x  3 root root  18 Jan 10 01:54 app

jenkins 安装

使用 rpm 包方法

jenkins 下载地址 : https://www.jenkins.io/download/

当前使用的 centos 安装方法:

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sudo wget -O /etc/yum.repos.d/jenkins.repo https://pkg.jenkins.io/redhat-stable/jenkins.repo # 下载 repo 源
sudo rpm --import https://pkg.jenkins.io/redhat-stable/jenkins.io.key  # 导入证书
sudo yum install -y jenkins

查看目录

[root@k8s01 ~]# rpm -ql jenkins
/etc/init.d/jenkins
/etc/logrotate.d/jenkins
/etc/sysconfig/jenkins
/usr/lib/jenkins
/usr/lib/jenkins/jenkins.war
/usr/sbin/rcjenkins
/var/cache/jenkins
/var/lib/jenkins
/var/log/jenkins

[root@k8s01 ~]# systemctl start jenkins  # 启动失败
Job for jenkins.service failed because the control process exited with error code. See "systemctl status jenkins.service" and "journalctl -xe" for details.

[root@k8s01 ~]# systemctl status jenkins.service  # 查看信息，是因为 没有  /usr/bin/java 导致 
● jenkins.service - LSB: Jenkins Automation Server
   Loaded: loaded (/etc/rc.d/init.d/jenkins; bad; vendor preset: disabled)
   Active: failed (Result: exit-code) since Sun 2021-01-10 02:36:57 CST; 17s ago
     Docs: man:systemd-sysv-generator(8)
  Process: 80237 ExecStart=/etc/rc.d/init.d/jenkins start (code=exited, status=1/FAILURE)

Jan 10 02:36:57 k8s01 systemd[1]: Starting LSB: Jenkins Automation Server...
Jan 10 02:36:57 k8s01 runuser[80242]: pam_unix(runuser:session): session opened for user jenkins by (uid=0)
Jan 10 02:36:57 k8s01 jenkins[80237]: Starting Jenkins bash: /usr/bin/java: No such file or directory
Jan 10 02:36:57 k8s01 runuser[80242]: pam_unix(runuser:session): session closed for user jenkins
Jan 10 02:36:57 k8s01 jenkins[80237]: [FAILED]
Jan 10 02:36:57 k8s01 systemd[1]: jenkins.service: control process exited, code=exited status=1
Jan 10 02:36:57 k8s01 systemd[1]: Failed to start LSB: Jenkins Automation Server.
Jan 10 02:36:57 k8s01 systemd[1]: Unit jenkins.service entered failed state.
Jan 10 02:36:57 k8s01 systemd[1]: jenkins.service failed.

需要安装 java

yum install -y java

systemctl start jenkins
chkconfig jenkins on  # 开机启动

jenkins 默认日志路径 /var/log/jenkins/jenkins.log

从此可查看初始密码

默认端口 8080 ,可自行修改 vi /etc/sysconfig/jenkins

使用 jar 包

Jenkins war ：http://mirrors.jenkins.io/war-stable/

1 2	wget http://mirrors.jenkins.io/war-stable/2.263.1/jenkins.war java -jar jenkins.war --httpPort=18080

docker 安装

我这里时使用 docker 安装

[root@k8s01 ~]# docker run -u root --rm -d -p 8080:8080 -p 50000:50000 -v jenkins-data:/var/jenkins_home  -v /var/run/docker.sock:/var/run/docker.sock  --name jenkins  jenkinsci/blueocean
c55367bcbe1682a6b5016829aca3c8bb7339602fea91406bdd4070ba31921ae8

[root@k8s01 ~]# echo && docker exec -it jenkins cat /var/jenkins_home/secrets/initialAdminPassword && echo

133816aeddb1404eb751fb5b02c38657

[root@k8s01 ~]# docker logs -f  jenkins  #  也可以这样查看



[root@k8s01 ~]# curl http://192.168.43.101:50000/  # 查看安装的版本
Jenkins-Agent-Protocols: JNLP4-connect, Ping
Jenkins-Version: 2.263.2
Jenkins-Session: 315fc0c2
Client: 192.168.43.101
Server: 172.17.0.2
Remoting-Minimum-Version: 3.14

访问 http://192.168.43.101:8080, 选择默认插件快速体验

jenkins界面

因为我的服务器为 arm 架构，jenkinsci/blueocean 暂时不支持 arm 架构，使用官方镜像 docker pull jenkins/jenkins:latest

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[root@k8s01 ~]# mkdir jenkins-data
[root@k8s01 ~]# docker run -u root -d -p 8081:8080 -p 50001:50000 -v ~/jenkins-data:/var/jenkins_home  -v /var/run/docker.sock:/var/run/docker.sock  --name jenkins-ori  jenkins/jenkins:latest