Centos7安装部署Jenkins

Jenkins是Java编写的，所以需要先安装JDK。可以使用源码安装也可以使用yum安装。笔者使用的是源码安装。

# tar xf jdk-8u121-linux-x64.gz -C /usr/local/

设置Java环境变量

###在/etc/profile文件最下面添加如下配置
# vim /etc/profile
export JAVA_HOME=/usr/local/jdk1.8.0_121
export JRE_HOME=$JAVA_HOME/jre
export PATH=$JAVA_HOME/bin:$JAVA_HOME/jre/bin:$PATH
export CLASSPATH=.:$JAVA_HOME/lib:$JRE_HOME/lib#source /etc/profile

查看Java版本

# java -version
java version "1.8.0_121"
Java(TM) SE Runtime Environment (build 1.8.0_121-b13)
Java HotSpot(TM) 64-Bit Server VM (build 25.121-b13, mixed mode)
###证明Java配置成功

安装Jenkins

# cd /etc/yum.repos.d/
# wget http://pkg.jenkins.io/redhat/jenkins.repo
# rpm --import http://pkg.jenkins.io/redhat/jenkins.io.key
# yum install -y jenkins

启动Jenkins

# systemctl start jenkins

启动时报错，提示找不到java

Starting Jenkins bash: /usr/bin/java: No such file or directory

解决方法，在启动文件内添加本机的Java路径

# which java     <--查看本机java路径/usr/local/jdk1.8.0_121/bin/java# vim /etc/init.d/jenkins
candidates="
/etc/alternatives/java
/usr/lib/jvm/java-1.8.0/bin/java
/usr/lib/jvm/jre-1.8.0/bin/java
/usr/lib/jvm/java-1.7.0/bin/java
/usr/lib/jvm/jre-1.7.0/bin/java
/usr/bin/java
/usr/local/jdk1.8.0_121/bin/java   <--在此处添加本机java路径
"
for candidate in $candidates
do
  [ -x "$JENKINS_JAVA_CMD" ] && break
  JENKINS_JAVA_CMD="$candidate"
done

再次启动jenkin即可。

相关配置文件：

/usr/lib/jenkins/：jenkins安装目录，WAR包会放在这里。

/etc/sysconfig/jenkins：jenkins配置文件，“端口”，“JENKINS_HOME”等都可以在这里配置。