Jenkins升级

如题，Jenkins有新版本提示，该如何升级。

定位jenkins.war文件的安装目录

[xiaoxin@iZ2ze2wrkn96xlnqnu949rZ jenkins]$ ps -aux | grep jenkins
jenkins  19696  0.2 12.7 4692028 1021812 ?     Ssl  Apr16  19:47 /etc/alternatives/java -Djava.awt.headless=true -DJENKINS_HOME=/var/lib/jenkins -jar /usr/lib/jenkins/jenkins.war --logfile=/var/log/jenkins/jenkins.log --webroot=/var/cache/jenkins/war --httpPort=8080 --debug=5 --handlerCountMax=100 --handlerCountMaxIdle=20
xiaoxin  21314  0.0  0.0 112708   988 pts/0    S+   10:40   0:00 grep --color=auto jenkins
[xiaoxin@iZ2ze2wrkn96xlnqnu949rZ jenkins]$

如果是默认安装的话，文件目录应该为：/usr/lib/jenkins

[xiaoxin@iZ2ze2wrkn96xlnqnu949rZ jenkins]$ pwd
/usr/lib/jenkins
[xiaoxin@iZ2ze2wrkn96xlnqnu949rZ jenkins]$ ll
total 64736
-rw-r--r-- 1 root root 66288019 Mar 25 22:13 jenkins.war

停止服务

[xiaoxin@iZ2ze2wrkn96xlnqnu949rZ jenkins]$ sudo service jenkins stop
Stopping jenkins (via systemctl):                          [  OK  ]
[xiaoxin@iZ2ze2wrkn96xlnqnu949rZ jenkins]$

防止万一，直接不删除，移动到别到目录下备用。

[xiaoxin@iZ2ze2wrkn96xlnqnu949rZ jenkins]$ sudo mv jenkins.war /opt/

把下载好的包移动到指定目录

[xiaoxin@iZ2ze2wrkn96xlnqnu949rZ ~]$ sudo mv jenkins.war /usr/lib/jenkins
[xiaoxin@iZ2ze2wrkn96xlnqnu949rZ ~]$ ll /usr/lib/j
java/        java-1.5.0/  java-1.6.0/  java-1.7.0/  java-1.8.0/  java-ext/    jenkins/     jvm/         jvm-commmon/ jvm-exports/ jvm-private/ 
[xiaoxin@iZ2ze2wrkn96xlnqnu949rZ ~]$ ll /usr/lib/jenkins/
total 64728
-rwxrwxrwx 1 root root 66281458 Apr 22 10:46 jenkins.war

启动服务

[xiaoxin@iZ2ze2wrkn96xlnqnu949rZ ~]$ sudo service jenkins start
Starting jenkins (via systemctl):                          [  OK  ]