【软件部署】Linux系统yum方式安装Jenkins

1.确定java环境的安装（如果没有java环境需要配置java环境变量）

java -version

#编辑群居配置文件
vim /etc/profile

#在最下面，按i进入insert模式，添加一下内容
JAVA_HOME=jdk路径
export JAVA_HOME
CLASSPATH=.:$JAVA_HOME/lib
export CLASSPATH
PATH=$PATH:$JAVA_HOME/bin:$CLASSPATH
export PATH

#重新加载配置
source /etc/profile

2.获取Jenkins源文件

cd /etc/yum.repos.d/
wget -O /etc/yum.repos.d/jenkins.repo http://pkg.jenkins-ci.org/redhat/jenkins.repo

3.导入Jenkins公钥

rpm --import https://jenkins-ci.org/redhat/jenkins-ci.org.key

4.yum安装Jenkins

yum install -y jenkins

5.Jenkins配置文件配置java环境

vi /etc/init.d/jenkins

6.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

/var/lib/jenkins/ #默认的JENKINS_HOME。 

/var/log/jenkins/jenkins.log #日志文件

7.启停Jenkins

service jenkins start
service jenkins stop
service jenkins restart

默认端口8080，ip:8080访问，注意虚拟机要开放端口，阿里云配置网络安全组

8.jenkins无法安装插件问题

• jenkins安装插件报错：原因是默认证书有问题

sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
        at sun.security.provider.certpath.SunCertPathBuilder.build(SunCertPathBuilder.java:145)
        at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(SunCertPathBuilder.java:131)
        at java.security.cert.CertPathBuilder.build(CertPathBuilder.java:280)
        at sun.security.validator.PKIXValidator.doBuild(PKIXValidator.java:382)
Caused: sun.security.validator.ValidatorException: PKIX path building failed
        at sun.security.validator.PKIXValidator.doBuild(PKIXValidator.java:387)
        at sun.security.validator.PKIXValidator.engineValidate(PKIXValidator.java:292)
        at sun.security.validator.Validator.validate(Validator.java:260)
        at sun.security.ssl.X509TrustManagerImpl.validate(X509TrustManagerImpl.java:324)
        at sun.security.ssl.X509TrustManagerImpl.checkTrusted(X509TrustManagerImpl.java:229)
        at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(X509TrustManagerImpl.java:124)
        at sun.security.ssl.ClientHandshaker.serverCertificate(ClientHandshaker.java:1351)
Caused: javax.net.ssl.SSLHandshakeException
        at sun.security.ssl.Alerts.getSSLException(Alerts.java:192)
        at sun.security.ssl.SSLSocketImpl.fatal(SSLSocketImpl.java:1917)
        at sun.security.ssl.Handshaker.fatalSE(Handshaker.java:301)
        at sun.security.ssl.Handshaker.fatalSE(Handshaker.java:295)
        at sun.security.ssl.ClientHandshaker.serverCertificate(ClientHandshaker.java:1369)
        at sun.security.ssl.ClientHandshaker.processMessage(ClientHandshaker.java:156)
        at sun.security.ssl.Handshaker.processLoop(Handshaker.java:925)
        at sun.security.ssl.Handshaker.process_record(Handshaker.java:860)
        at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1043)
        at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1343)
        at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1371)
        at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1355)

• 更新站点：https://mirrors.tuna.tsinghua.edu.cn/jenkins/updates/update-center.json

• 进入jenkins站点更新目录修改默认json配置

 cd /var/lib/jenkins/updates/

• 全局替换default.json里面的下载插件地址

sed -i 's/http://updates.jenkins-ci.org/download/https://mirrors.tuna.tsinghua.edu.cn/jenkins/g' default.json 
 
sed -i 's/http://www.google.com/https://www.baidu.com/g' default.json

• 查找证书路径

find / -type f -name cacerts

• 修改jenkins配置文件

vi /etc/sysconfig/jenkins

JENKINS_JAVA_OPTIONS="-Djava.awt.headless=true -Djavax.net.ssl.trustStore=/etc/pki/ca-trust/extracted/java/cacerts"

• 重启jenkins

service restart jenkins 

最后

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