Installation Jenkins-2.361.2 on CentOS 7.9

一、Installation Jenkins-2.361.2 on CentOS 7.9

1 地址

• https://www.jenkins.io/download

2 简介

Jenkins是一个Java开发的开源持续集成工具，广泛用于项目开发，具有自动化构建、测试和部署等功能，它的运行需要Java环境。

 

二、Jenkins Redhat Packages

To use this repository, run the following command:

sudo wget -O /etc/yum.repos.d/jenkins.repo https://pkg.jenkins.io/redhat-stable/jenkins.repo
sudo rpm --import https://pkg.jenkins.io/redhat-stable/jenkins.io.key

If you've previously imported the key from Jenkins, the rpm --import will fail because you already have a key. Please ignore that and move on.

yum install fontconfig java-11-openjdk
yum install jenkins

The rpm packages were signed using this key:

pub   rsa4096 2020-03-30 [SC] [expires: 2023-03-30]
      62A9756BFD780C377CF24BA8FCEF32E745F2C3D5
uid                      Jenkins Project <jenkinsci-board@googlegroups.com>
sub   rsa4096 2020-03-30 [E] [expires: 2023-03-30]</jenkinsci-board@googlegroups.com>

You will need to explicitly install a supported Java runtime environment (JRE), either from your distribution (as described above) or another Java vendor (e.g., Adoptium).

 

三、启动

# 启动Jenkins
systemctl start jenkins
# 设置开机启动
systemctl enable jenkins
# 查看Jenkins状态
systemctl status jenkins
# 关闭Jenkins
systemctl stop jenkins

在浏览器打开Jenkins控制面板  http://IP:8080/

如果一直浏览器一直是这个界面，就需要修改一下Jenkins的配置文件，然后重启Jenkins，然后等待浏览器出现输入密码的界面表示Jenkins启动成功

vim /var/lib/jenkins/hudson.model.UpdateCenter.xml
systemctl restart jenkins
# https://updates.jenkins.io/update-center.json
# https://mirrors.tuna.tsinghua.edu.cn/jenkins/updates/update-center.json

如果不记得密码，可以通过以下命令找回

cat /var/lib/jenkins/secrets/initialAdminPassword

四、Jenkins 插件安装失败

cd /var/lib/jenkins/updates
# 备份default.json
cp default.json default.json.bak
sudo sed -i 's#updates.jenkins.io/download/plugins#mirrors.tuna.tsinghua.edu.cn/jenkins/plugins#g' default.json && sudo sed -i 's#www.google.com#www.baidu.com#g' default.json

# 重启jenkins
systemctl restart jenkins

 

 

五、配置Jenkins

进入jenkins配置文件

vim /etc/sysconfig/jenkins
JENKINS_HOME="/var/lib/jenkins"    # jenkins的工作路径
JENKINS_JAVA_CMD=""
JENKINS_USER="jenkins"     # 默认的jenkins用户是jenkins
JENKINS_PORT="8080"        # 修改jenkins的默认端口

查看系统8080端口是否被占用

netstat -nlt |grep 8080

 

六、防火墙开启8080端口

# 关闭防火墙
systemctl stop firewalld

# 开放3306端口命令
firewall-cmd --zone=public --add-port=8080/tcp --permanent
# 配置立即生效
firewall-cmd --reload

云主机需配置安全组

在入方向规则，允许8080放行

 

 

七、服务卸载

# 卸载jenkins服务
rpm -e jenkins
# 检查是否卸载成功
rpm -ql jenkins
# 彻底删除残留文件
find / -name jenkins | xargs rm -rf