安装jdk11版本

yum -y install fontconfig java-11-openjdk
#查看安装路径
rpm -qa |grep java
vim ~/.bashrc

添加java路径

export JAVA_HOME=/usr/lib/jvm/java-11-openjdk-11.0.23.0.9-2.el7_9.x86_64
export PATH=$JAVA_HOME/bin:$PATH

重新加载配置文件

source  ~/.bashrc 
java -version

安装maven

mkdir /usr/local/maven
cd  /usr/local/maven
wget https://archive.apache.org/dist/maven/maven-3/3.6.3/binaries/apache-maven-3.6.3-bin.tar.gz
tar -zxvf apache-maven-3.6.3-bin.tar.gz 

添加maven路径

vim ~/.bashrc
#添加这俩句
export MAVEN_HOME=/usr/local/maven/apache-maven-3.6.3
export PATH=$MAVEN_HOME/bin:$PATH

source ~/.bashrc 
mvn -v

配置maven本地仓库路径
进入 conf 目录，并编辑settings.xml配置文件：

vim  /usr/local/maven/apache-maven-3.6.3/conf/settings.xml
找到 localRepository 标签，添加本地仓库路径添加字段

<localRepository>/usr/local/maven/mvn_repo</localRepository>

找到 mirrors 标签,添加阿里云镜像下载地址

<mirror>
      <id>alimaven</id>
      <name>aliyun maven</name>
      <url>http://maven.aliyun.com/nexus/content/groups/public/</url>
      <mirrorOf>central</mirrorOf>
</mirror>

安装git

yum -y install git

git --version

安装jenknis

先下载证书 再下载包

yum install -y ca-certificates
wget https://repo.huaweicloud.com/jenkins/redhat-stable/jenkins-2.190.3-1.1.noarch.rpm
rpm -ivh jenkins-2.190.3-1.1.noarch.rpm

添加java路径

vim /etc/init.d/jenkins 
#添加
/usr/lib/jvm/java-11-openjdk-11.0.23.0.9-2.el7_9.x86_64/bin/java

启动jenknis

systemctl daemon-reload 
systemctl start jenkins
systemctl status jenkins

关闭防火墙

systemctl stop firewalld

 访问jenkins

浏览器访问 http://ip:8080

# 查看密码
cat /var/lib/jenkins/secrets/initialAdminPassword

输入完后，会提示选择安装插件，这里不选择安装任何插件，因为安装源在国外的网站，速度是十分慢还可能失败，后面我们自己会配置安装插件的源