当前安装环境 CentOS 7.9、2核4G
2、安装jdk检查可用的jdk安装包
[root@jenkins ~]# yum list java* Available Packages java-1.6.0-openjdk.x86_64 1:1.6.0.41-1.13.13.1.el7_3 base java-1.6.0-openjdk-demo.x86_64 1:1.6.0.41-1.13.13.1.el7_3 base java-1.6.0-openjdk-devel.x86_64 1:1.6.0.41-1.13.13.1.el7_3 base java-1.6.0-openjdk-javadoc.x86_64 1:1.6.0.41-1.13.13.1.el7_3 base java-1.6.0-openjdk-src.x86_64 1:1.6.0.41-1.13.13.1.el7_3 base java-1.7.0-openjdk.x86_64 1:1.7.0.261-2.6.22.2.el7_8 base java-1.7.0-openjdk-accessibility.x86_64 1:1.7.0.261-2.6.22.2.el7_8 base java-1.7.0-openjdk-demo.x86_64 1:1.7.0.261-2.6.22.2.el7_8 base java-1.7.0-openjdk-devel.x86_64 1:1.7.0.261-2.6.22.2.el7_8 base java-1.7.0-openjdk-headless.x86_64 1:1.7.0.261-2.6.22.2.el7_8 base java-1.7.0-openjdk-javadoc.noarch 1:1.7.0.261-2.6.22.2.el7_8 base java-1.7.0-openjdk-src.x86_64 1:1.7.0.261-2.6.22.2.el7_8 base java-1.8.0-openjdk.i686 1:1.8.0.322.b06-1.el7_9 updates java-1.8.0-openjdk.x86_64 1:1.8.0.322.b06-1.el7_9 updates java-1.8.0-openjdk-accessibility.i686 1:1.8.0.322.b06-1.el7_9 updates java-1.8.0-openjdk-accessibility.x86_64 1:1.8.0.322.b06-1.el7_9 updates java-1.8.0-openjdk-demo.i686 1:1.8.0.322.b06-1.el7_9 updates java-1.8.0-openjdk-demo.x86_64 1:1.8.0.322.b06-1.el7_9 updates java-1.8.0-openjdk-devel.i686 1:1.8.0.322.b06-1.el7_9 updates java-1.8.0-openjdk-devel.x86_64 1:1.8.0.322.b06-1.el7_9 updates java-1.8.0-openjdk-headless.i686 1:1.8.0.322.b06-1.el7_9 updates java-1.8.0-openjdk-headless.x86_64 1:1.8.0.322.b06-1.el7_9 updates java-1.8.0-openjdk-javadoc.noarch 1:1.8.0.322.b06-1.el7_9 updates java-1.8.0-openjdk-javadoc-zip.noarch 1:1.8.0.322.b06-1.el7_9 updates java-1.8.0-openjdk-src.i686 1:1.8.0.322.b06-1.el7_9 updates java-1.8.0-openjdk-src.x86_64 1:1.8.0.322.b06-1.el7_9 updates java-11-openjdk.i686 1:11.0.14.1.1-1.el7_9 updates java-11-openjdk.x86_64 1:11.0.14.1.1-1.el7_9 updates java-11-openjdk-demo.i686 1:11.0.14.1.1-1.el7_9 updates java-11-openjdk-demo.x86_64 1:11.0.14.1.1-1.el7_9 updates java-11-openjdk-devel.i686 1:11.0.14.1.1-1.el7_9 updates java-11-openjdk-devel.x86_64 1:11.0.14.1.1-1.el7_9 updates java-11-openjdk-headless.i686 1:11.0.14.1.1-1.el7_9 updates java-11-openjdk-headless.x86_64 1:11.0.14.1.1-1.el7_9 updates java-11-openjdk-javadoc.i686 1:11.0.14.1.1-1.el7_9 updates java-11-openjdk-javadoc.x86_64 1:11.0.14.1.1-1.el7_9 updates java-11-openjdk-javadoc-zip.i686 1:11.0.14.1.1-1.el7_9 updates java-11-openjdk-javadoc-zip.x86_64 1:11.0.14.1.1-1.el7_9 updates java-11-openjdk-jmods.i686 1:11.0.14.1.1-1.el7_9 updates java-11-openjdk-jmods.x86_64 1:11.0.14.1.1-1.el7_9 updates java-11-openjdk-src.i686 1:11.0.14.1.1-1.el7_9 updates java-11-openjdk-src.x86_64 1:11.0.14.1.1-1.el7_9 updates java-11-openjdk-static-libs.i686 1:11.0.14.1.1-1.el7_9 updates java-11-openjdk-static-libs.x86_64 1:11.0.14.1.1-1.el7_9 updates java-atk-wrapper.i686 0.30.4-5.el7 base java-atk-wrapper.x86_64 0.30.4-5.el7 base java_cup.noarch 1:0.11a-16.el7 base java_cup-javadoc.noarch 1:0.11a-16.el7 base java_cup-manual.noarch 1:0.11a-16.el7 base javacc.noarch 5.0-10.el7 base javacc-demo.noarch 5.0-10.el7 base javacc-javadoc.noarch 5.0-10.el7 base javacc-manual.noarch 5.0-10.el7 base javacc-maven-plugin.noarch 2.6-17.el7 base javacc-maven-plugin-javadoc.noarch 2.6-17.el7 base javamail.noarch 1.4.6-8.el7 base javamail-javadoc.noarch 1.4.6-8.el7 base javapackages-tools.noarch 3.4.1-11.el7 base javassist.noarch 3.16.1-10.el7 base javassist-javadoc.noarch 3.16.1-10.el7 base [root@jenkins ~]#
我们安装稳定的java-1.8.0-openjdk
[root@jenkins ~]# yum install -y java-1.8.0-openjdk*二、安装Jenkins 1、下载安装包
登录清华源，选择需要的版本：Index of /jenkins/redhat/ | 清华大学开源软件镜像站 | Tsinghua Open Source Mirror
yum install -y https://mirrors.tuna.tsinghua.edu.cn/jenkins/redhat/jenkins-2.345-1.1.noarch.rpm2、修改配置文件
[root@jenkins ~]# vim /etc/sysconfig/jenkins
修改JENKINS_USER="root"
修改端口（可选）JENKINS_PORT="8080"
3、修改插件下载地址
国内用户需要使用清华源下载插件。比较快速。
- 修改 /var/lib/jenkins/hudson.model.UpdateCenter.xml
[root@jenkins jenkins]# vim hudson.model.UpdateCenter.xmldefault https://mirrors.tuna.tsinghua.edu.cn/jenkins/updates/update-center.json
- 修改 /var/lib/jenkins/updates/default.json
cd /var/lib/jenkins/updates ## 移动到配置文件目录下，执行如下命令 sed -i 's/https://updates.jenkins.io/download/https://mirrors.tuna.tsinghua.edu.cn/jenkins/g' default.json && sed -i 's/http://www.google.com/https://www.baidu.com/g' default.json ## 修改配置文件内加速站点
重启Jenkis
[root@jenkins ~]# systemctl restart jenkins三、浏览器访问
浏览器登录：https://ip:8080
获取管理员密码
[root@jenkins jenkins]# cat /var/lib/jenkins/secrets/initialAdminPassword
选择默认插件安装。
创建用户
配置地址
进入页面
