centos 7系统下安装Jenkins的步骤详解
本文主要给大家介绍了关于在centos 7安装Jenkins的相关内容，分享出来供大家参考学习，话不多说，来一起看看详细的介绍：
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
"color: #ff0000">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。
总结
以上就是这篇文章的全部内容了，希望本文的内容对大家的学习或者工作能带来一定的帮助，如果有疑问大家可以留言交流，谢谢大家对的支持。
参考
"external nofollow" target="_blank" href="https://wiki.jenkins-ci.org/display/JENKINS/Installing+Jenkins+on+Red+Hat+distributions">https://wiki.jenkins-ci.org/display/JENKINS/Installing+Jenkins+on+Red+Hat+distributions
"external nofollow" target="_blank" href="http://www.cnblogs.com/tjpanda88/p/4306147.html">http://www.cnblogs.com/tjpanda88/p/4306147.html
•http://stackoverflow.com/questions/37358775/jenkins-2-5-installation-error-an-error-occurred-during-installation-forbidden
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