1、安装 jdk
去除旧的包
yum -y remove javapackages-tools-3.4.1-11.el7.noarch tzdata-java-2015g-1.el7.noarch java-1.7.0-openjdk-1.7.0.91-2.6.2.3.el7.x86_64 java-1.7.0-openjdk-headless-1.7.0.91-2.6.2.3.el7.x86_64 python-javapackages-3.4.1-11.el7.noarch
解压jdk包
tar xvf jdk-8u181-linux-x64.tar.gz -C /usr/local/
ln -s /usr/local/jdk1.8.0_181 /usr/local/jdk1.8
加入到 环境变量配置
cat << EOF >> /etc/profile
JAVA_HOME=/usr/local/jdk1.8
JRE_HOME=$JAVA_HOME/jre
PATH=$PATH:$JAVA_HOME/bin:$JRE_HOME/bin
CLASSPATH=.:$JAVA_HOME/lib/tools.jar:$JAVA_HOME/lib/dt.jar:$JRE_HOME/lib
export JAVA_HOME JRE_HOME PATH CLASSPATH
EOF
使生效
source /etc/profile
2、下载 jenkins war包
wget https://get.jenkins.io/war/xxx版本号/jenkins.war
如现最新版 wget https://get.jenkins.io/war/2.293/jenkins.war
3、新建workspace工作目录
mkdir /usr/local/jenkins_workspace
4、把jenkins_home加到系统环境变量里，如无，则默认在用户home目录下新建.jenkins隐藏目录作为workspace工作目录
echo "export JENKINS_HOME=/usr/local/jenkins_workspace" >> /etc/profile
5、安装tomcat
cd /usr/local/
tar xvf apache-tomcat-8.5.33.tar.gz
mv apache-tomcat-8.5.33 tomcat_jenkins
6、解压war
mkdir -p /usr/local/tomcat_jenkins/webapps/jenkins
jar xvf jenkins.war
rm jenkins.war
7、启动
/usr/local/tomcat_jenkins/bin/startup.sh
8、关闭
/usr/local/tomcat_jenkins/bin/shutdown.sh
