jenkins的安装

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

3.yum install jenkins

自动安装完成以后： 

/usr/lib/jenkins/jenkins.war    WAR包 

/etc/sysconfig/jenkins       配置文件

/var/lib/jenkins/        默认的JENKINS_HOME目录

/var/log/jenkins/jenkins.log    Jenkins日志文件

4.须要“vi /etc/init.d/jenkins”，把java路径加上，以下：

# Search usable Java. We do this because various reports indicated
# that /usr/bin/java may not always point to Java >= 1.6
# see http://www.nabble.com/guinea-pigs-wanted-----Hudson-RPM-for-RedHat-Linux-td25673707.html
candidates="
/etc/alternatives/java
/usr/lib/jvm/java-1.6.0/bin/java
/usr/lib/jvm/jre-1.6.0/bin/java
/usr/lib/jvm/java-1.7.0/bin/java
/usr/lib/jvm/jre-1.7.0/bin/java
/usr/lib/jvm/java-1.8.0/bin/java
/usr/lib/jvm/jre-1.8.0/bin/java
/usr/bin/java
/usr/java/jdk1.7.0_79/bin/java
"
for candidate in $candidates
do
  [ -x "$JENKINS_JAVA_CMD" ] && break
  JENKINS_JAVA_CMD="$candidate"
done

JAVA_CMD="$JENKINS_JAVA_CMD $JENKINS_JAVA_OPTIONS -DJENKINS_HOME=$JENKINS_HOME -jar $JENKINS_WAR"

5.启动:service jenkins start