在CentOS 7上安装Jenkins

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安装

添加yum repos,然后安装

sudo wget -O /etc/yum.repos.d/jenkins.repo http://pkg.jenkins-ci.org/redhat/jenkins.repo
sudo rpm --import https://jenkins-ci.org/redhat/jenkins-ci.org.key
sudo yum install jenkins
如果没有java的话要安装java
sudo yum install java
启动和停止
sudo service jenkins start/stop/restart
sudo chkconfig jenkins on
jenkins的默认设置
  • Jenkins会随系统启动而启动。详情参照/etc/init.d/jenkins
  • Jenkins会创建一个用户叫做jenkins, 如果你修改了user,则要修修改所属者:/var/log/jenkins,/var/lib/jenkins,/var/cache/jenkins
  • 如果遇到问题,查看日志/var/log/jenkins/jenkins.log
  • 配置文件/etc/sysconfig/jenkins
  • 默认启用8080
打开和关闭防火墙
firewall-cmd --zone=public --add-port=8080/tcp --permanent
firewall-cmd --zone=public --add-service=http --permanent
firewall-cmd --reload
firewall-cmd --list-all
关于centos上的java

Jenkins不支持在centos的默认的jdk上工作。如果如下所示,则需要remove:

java -version
java version "1.5.0"
gij (GNU libgcj) version 4.4.6 20110731 (Red Hat 4.4.6-3)

为了正确使用Jenkins:

yum remove java

然后可以安装openjdk

yum install java-1.7.0-openjdk

正确如下:

java -version
java version "1.7.0_79"
OpenJDK Runtime Environment (rhel-2.5.5.1.el6_6-x86_64 u79-b14)
OpenJDK 64-Bit Server VM (build 24.79-b02, mixed mode)
配置端口

修改/etc/sysconfig/jenkins:

JENKINS_PORT="8080"
配置java路径

直接启动:

sudo service jenkins start

但是发现启动失败,于是需要配置java位置:

vi /etc/init.d/jenkins

在启动加入本机的java:

[root@iZ94xvn71eeZ ~]# vim /etc/init.d/jenkins 


# Set up environment accordingly to the configuration settings
[ -n "$JENKINS_HOME" ] || { echo "JENKINS_HOME not configured in $JENKINS_CONFIG";
        if [ "$1" = "stop" ]; then exit 0;
        else exit 6; fi; }
[ -d "$JENKINS_HOME" ] || { echo "JENKINS_HOME directory does not exist: $JENKINS_HOME";
        if [ "$1" = "stop" ]; then exit 0;
        else exit 1; fi; }

# Search usable Java as /usr/bin/java might not point to minimal version required by Jenkins.
# see http://www.nabble.com/guinea-pigs-wanted-----Hudson-RPM-for-RedHat-Linux-td25673707.html
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/java/jdk1.7.0_80/bin/java
"

上述最后一行是我添加的。

重启,可以正常运行了。


启动

浏览器输入ip和端口访问,第一个页面是正在启动,启动结束后会让输入一串密码,然后进入插件安装界面,选择默认,这时候会报错:
An error occurred during installation: Forbidden

解决办法:
I "fixed it" by restarting Jenkins http://localhost:8080/restart。即重启就可以继续了。