【Linux】Jenkins以war包运行及开机启动配置（四）

　　本例介绍jenkins已war包运行及开机启动配置

　　环境：Linux环境（CentOS 7.4）

以war包运行

　　1、下载jenkins.war包

　　2、启动war包（ 默认端口：8080，默认JENKINS_HOME目录：～/.jenkins ）

　　　　前台启动命令：java -jar jenkins.war

　　　　后台启动命令：nohup java -jar jenkins.war &

　　3、使用浏览器打开地址：http://ip:8080，即可访问到jenkins

　　　　关闭jenkins，页面访问地址：http://ip:8080/exit

　　　　重启jenkins，页面访问地址：http://ip:8080/restart

　　4、其他安装参考【Linux】Jenkins安装（一）

　　5、修改JENKINS_HOME目录启动，需要新建一个脚本jenkins.sh，然后运行脚本　

#!/bin/bash
# 导入JENKINS_HOME环境变量
export JENKINS_HOME=/data/soft/jenkins

cd $JENKINS_HOME

# 启动Jenkins
nohup java -jar jenkins.war  --ajp13Port=-1 --httpPort=18080 >/dev/null 2>&1 &

　　6、构建shell，demo如下：

#!/bin/bash
# 编译+部署zeus站点

# 保持Jenkins启动的Service（tomcat） 不被杀死
export BUILD_ID=dontKillMe

# 需要配置如下参数
# 项目路径，在Execute Shell中国配置项目路径， pwd 就可以获得项目路径
# export PROJ_PATH=这个jenkins任务在部署机器上的路径
export PROJ_PATH=`pwd`

# 输入你在环境上tomcat的全路径
# export TOMCAT_APP_PATH=tomcat在部署机器上的路径
export TOMCAT_APP_PATH=/data/soft/apache-tomcat-8080


### base 函数
killTomcat()
{
    pid=`ps -ef | grep tomcat-8080 | grep -v grep | awk '{print $2}'` 
    echo "Tomcat Id is : $pid"
    if [ ! -n "$pid" ];
    then
        echo "No Tomcat Pid alive"
    else 
        echo "Tomcat Pid alive"
    fi
}

cd $PROJ_PATH/god-site
pwd

mvn clean package

# 停tomcat
killTomcat

# 删除原有工程
rm -rf $TOMCAT_APP_PATH/webapps/zeus.war

# 复制新的工程
cp $PROJ_PATH/god-site/god-web/god-web-zeus/target/zeus.war $TOMCAT_APP_PATH/webapps/

# 启动Tomcat
cd $TOMCAT_APP_PATH
sh bin/startup.sh

　　补充：

　　使用java -jar 命令的时候可以加入启动参数，启动命令格式：java -jar jenkins.war [--option=value] [--option=value]，

　　到达一些配置效果，例如：

　　　　修改jenkins端口启动命令：java -jar jenkins.war --httpPort=18080

　　其他启动参数查看命令：java -jar jenkins.war --help

[root@H__D jenkins]# java -jar jenkins.war --help
Running from: /data/soft/jenkins/jenkins.war
webroot: $user.home/.jenkins
Jenkins Automation Server Engine 2.184
Usage: java -jar jenkins.war [--option=value] [--option=value]

Options:
   --webroot                = folder where the WAR file is expanded into. Default is ${JENKINS_HOME}/war
   --pluginroot             = folder where the plugin archives are expanded into. Default is ${JENKINS_HOME}/plugins
                              (NOTE: this option does not change the directory where the plugin archives are stored)
   --extractedFilesFolder   = folder where extracted files are to be located. Default is the temp folder
   --daemon                 = fork into background and run as daemon (Unix only)
   --logfile                = redirect log messages to this file
   --enable-future-java     = allows running with new Java versions which are not fully supported (class version 52 and above)
   --javaHome               = Override the JAVA_HOME variable
   --toolsJar               = The location of tools.jar. Default is JAVA_HOME/lib/tools.jar
   --config                 = load configuration properties from here. Default is ./winstone.properties
   --prefix                 = add this prefix to all URLs (eg http://localhost:8080/prefix/resource). Default is none
   --commonLibFolder        = folder for additional jar files. Default is ./lib

   --extraLibFolder         = folder for additional jar files to add to Jetty classloader

   --logThrowingLineNo      = show the line no that logged the message (slow). Default is false
   --logThrowingThread      = show the thread that logged the message. Default is false
   --debug                  = set the level of debug msgs (1-9). Default is 5 (INFO level)

   --httpPort               = set the http listening port. -1 to disable, Default is 8080
   --httpListenAddress      = set the http listening address. Default is all interfaces
   --httpKeepAliveTimeout   = how long idle HTTP keep-alive connections are kept around (in ms; default 5000)?
   --httpsPort              = set the https listening port. -1 to disable, Default is disabled
   --httpsListenAddress     = set the https listening address. Default is all interfaces
   --httpsKeepAliveTimeout  = how long idle HTTPS keep-alive connections are kept around (in ms; default 5000)?
   --httpsKeyStore          = the location of the SSL KeyStore file. Default is ./winstone.ks
   --httpsKeyStorePassword  = the password for the SSL KeyStore file. Default is null
   --httpsKeyManagerType    = the SSL KeyManagerFactory type (eg SunX509, IbmX509). Default is SunX509
   --httpsPrivateKey        = this switch with --httpsCertificate can be used to run HTTPS with OpenSSL secret key
     / --httpsCertificate     file and the corresponding certificate file
   --http2Port              = set the http2 listening port. -1 to disable, Default is disabled
   --http2ListenAddress     = set the http2 listening address. Default is all interfaces
   --excludeCipherSuites    = set the ciphers to exclude (comma separated, use blank quote " " to exclude none) (default is
                           // Exclude weak / insecure ciphers 
                           "^.*_(MD5|SHA|SHA1)$", 
                           // Exclude ciphers that don't support forward secrecy 
                           "^TLS_RSA_.*$", 
                           // The following exclusions are present to cleanup known bad cipher 
                           // suites that may be accidentally included via include patterns. 
                           // The default enabled cipher list in Java will not include these 
                           // (but they are available in the supported list). 
                           "^SSL_.*$", 
                           "^.*_NULL_.*$", 
                           "^.*_anon_.*$" 
   --controlPort            = set the shutdown/control port. -1 to disable, Default disabled

   --useJasper              = enable jasper JSP handling (true/false). Default is false
   --sessionTimeout         = set the http session timeout value in minutes. Default to what webapp specifies, and then to 60 minutes
   --sessionEviction        = set the session eviction timeout for idle sessions in seconds. Default value is 180. -1 never evict, 0 evict on exit
   --mimeTypes=ARG          = define additional MIME type mappings. ARG would be EXT=MIMETYPE:EXT=MIMETYPE:...
                              (e.g., xls=application/vnd.ms-excel:wmf=application/x-msmetafile)
   --maxParamCount=N        = set the max number of parameters allowed in a form submission to protect
                              against hash DoS attack (oCERT #2011-003). Default is 10000.
   --useJmx                 = Enable Jetty Jmx
   --qtpMaxThreadsCount     = max threads number when using Jetty Queued Thread Pool
   --jettyAcceptorsCount    = Jetty Acceptors number
   --jettySelectorsCount    = Jetty Selectors number
   --usage / --help         = show this message
 Security options:
   --realmClassName               = Set the realm class to use for user authentication. Defaults to ArgumentsRealm class

   --argumentsRealm.passwd.<user> = Password for user <user>. Only valid for the ArgumentsRealm realm class
   --argumentsRealm.roles.<user>  = Roles for user <user> (comma separated). Only valid for the ArgumentsRealm realm class

   --fileRealm.configFile         = File containing users/passwds/roles. Only valid for the FileRealm realm class

 Access logging:
   --accessLoggerClassName        = Set the access logger class to use for user authentication. Defaults to disabled
   --simpleAccessLogger.format    = The log format to use. Supports combined/common/resin/custom (SimpleAccessLogger only)
   --simpleAccessLogger.file      = The location pattern for the log file(SimpleAccessLogger only)

 开机启动配置

　　参考：【Linux】开机自动启动脚本

　　1、编写启动脚本jenkins

　　　　命令：vim /data/soft/jenkins/jenkins.sh

#!/bin/bash 

# 导入环境变量 
export JENKINS_HOME=/data/soft/jenkins 
export JAVA_HOME=/data/soft/jdk1.8.0_181

cd $JENKINS_HOME 

pid=`ps -ef | grep jenkins.war | grep -v 'grep'| awk '{print $2}'`    
  if [ "$1" = "start" ];then 
  if [ -n "$pid" ];then
  echo 'jenkins is running...' 
else 
  ### java启动服务 配置java安装根路径,和启动war包存的根路径
  nohup $JAVA_HOME/bin/java  -Xms128m -Xmx256m   -jar $JENKINS_HOME/jenkins.war  --ajp13Port=-1 --httpPort=18080 >/dev/null 2>&1 &
  fi
  elif [ "$1" = "stop" ];then
  exec ps -ef | grep jenkins | grep -v grep | awk '{print $2}'| xargs kill -9 
  echo 'jenkins is stop...'
else
  echo "Please input like this:"./jenkins.sh start" or "./jenkins stop""  
  fi 

　　2、给jenkins.sh文件授权

　　　　命令：chmod +x /data/soft/jenkins/jenkins.sh

　　3、在/etc/rc.d/rc.local文件底部，添加内容：

# jenkins              
/data/soft/jenkins/jenkins.sh start 

　　4、重启计算机

　　　　命令：reboot

 Jenkins常用功能

　　1、备份、迁移、恢复jenkins

　　首先找到JENKINS_HOME，因为Jenkins的所有的数据都是以文件的形式存放在JENKINS_HOME目录中。不管是迁移还是备份，只需要操作JENKINS_HOME就行了。

　　迁移：建议将JENKINS_HOME打包后在拷贝，windows可以用zip，rar等，Linux有zip，tar等，然后将打包的文件解压到新的JENKINS_HOME目录就行了。

　　备份：如果是临时备份，整个压缩文件就行了。

　　恢复：恢复的时候需要先停止jenkins。

　　2、升级Jenkins

　　Jenkins的开发迭代非常快，每周发布一个开发版本，长期支持版每半年更新一次(ps:大版本更新)。如此频繁的更新，怎么升级呢？

　　war：下载新版的war文件，替换旧版本war文件。重启即可。

　　二进制：卸载旧版本，安装新版本即可。

　　Jenkins程序下载地址：http://mirrors.jenkins-ci.org/