在CentOS 7上安装Jenkins

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在 CentOS 7 上安装 Jenkins

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
"