Jenkins部署一下

jenkins

1. 部署Jenkins

jenkins 部署與使用

https://jenkins.io/zh/download/ #官方下載地址
https://mirrors.tuna.tsinghua.edu.cn/jenkins/debian-stable/ #ubuntu安裝包清華源下載地，我們選擇國內源吧 它快。。。。

2. 準備JDK環境

#準備JDK
root@ubuntu1804:~# cd /usr/local/src/
root@ubuntu1804:/usr/local/src# ls
 jdk-8u241-linux-x64.tar.gz
root@ubuntu1804:/usr/local/src# pwd
/usr/local/src
# tar xf jdk-8u241-linux-x64.tar.gz
# ln -sv /usr/local/src/jdk1.8.0_241 /usr/local/jdk
'/usr/local/jdk' -> '/usr/local/src/jdk1.8.0_241'
#準備JDK環境
# vim /etc/profile
export JAVA_HOME=/usr/local/jdk
export PATH=$JAVA_HOME/bin:$JAVA_HOME/jre/bin:$PATH
export CLASSPATH=.$CLASSPATH:$JAVA_HOME/lib:$JAVA_HOME/jre/lib:$JAVA_HOME/lib/tools.jar

#使之生效
source /etc/profile
#驗證
root@ubuntu1804:/usr/local/src# java -version
java version "1.8.0_241"
Java(TM) SE Runtime Environment (build 1.8.0_241-b07)
Java HotSpot(TM) 64-Bit Server VM (build 25.241-b07, mixed mode)	

3. 通過deb包安裝Jenkins

#apt install daemon 
root@ubuntu1804:~# dpkg -i jenkins_2.204.5_all.deb 
(Reading database ... 71521 files and directories currently installed.)
Preparing to unpack jenkins_2.204.5_all.deb ...
Unpacking jenkins (2.204.5) over (2.204.5) ...
Setting up jenkins (2.204.5) ...
Job for jenkins.service failed because the control process exited with error code.
See "systemctl status jenkins.service" and "journalctl -xe" for details.
invoke-rc.d: initscript jenkins, action "start" failed.
● jenkins.service - LSB: Start Jenkins at boot time
   Loaded: loaded (/etc/init.d/jenkins; generated)
   Active: failed (Result: exit-code) since Tue 2020-03-10 16:45:54 CST; 7ms ago
     Docs: man:systemd-sysv-generator(8)
  Process: 16805 ExecStart=/etc/init.d/jenkins start (code=exited, status=1/FAILURE)

Mar 10 16:45:54 ubuntu1804 systemd[1]: Starting LSB: Start Jenkins at boot time...
Mar 10 16:45:54 ubuntu1804 jenkins[16805]: ERROR: No Java executable found in current PATH: /bin:/usr/bin:/sbin:/usr/sbin
Mar 10 16:45:54 ubuntu1804 jenkins[16805]: If you actually have java installed on the system make sure the executable is in the aforementioned path and that 'type -p java' returns the java executable path
Mar 10 16:45:54 ubuntu1804 systemd[1]: jenkins.service: Control process exited, code=exited status=1
Mar 10 16:45:54 ubuntu1804 systemd[1]: jenkins.service: Failed with result 'exit-code'.
Mar 10 16:45:54 ubuntu1804 systemd[1]: Failed to start LSB: Start Jenkins at boot time.
dpkg: error processing package jenkins (--install):
 installed jenkins package post-installation script subprocess returned error exit status 1
Processing triggers for ureadahead (0.100.0-21) ...
Processing triggers for systemd (237-3ubuntu10.24) ...
Errors were encountered while processing:
 jenkins  #報錯
 
# 解決報錯
# ln -sv /usr/local/jdk/bin/java /usr/bin/
#再次執行dpkg -i jenkins_2.204.5_all.deb 即可

4. 啓動並驗證jenkins

# systemctl start jenkins
# systemctl enable jenkins
root@ubuntu1804:~# ps -ef |grep jenkins
jenkins   17009      1  0 16:46 ?        00:00:00 /lib/systemd/systemd --user
jenkins   17010  17009  0 16:46 ?        00:00:00 (sd-pam)
jenkins   17024      1  0 16:46 ?        00:00:00 /usr/bin/daemon --name=jenkins --inherit --env=JENKINS_HOME=/var/lib/jenkins --output=/var/log/jenkins/jenkins.log --pidfile=/var/run/jenkins/jenkins.pid -- /usr/bin/java -Djava.awt.headless=true -jar /usr/share/jenkins/jenkins.war --webroot=/var/cache/jenkins/war --httpPort=8080
jenkins   17026  17024 43 16:46 ?        00:00:17 /usr/bin/java -Djava.awt.headless=true -jar /usr/share/jenkins/jenkins.war --webroot=/var/cache/jenkins/war --httpPort=8080
root      17171   2075  0 16:47 pts/0    00:00:00 grep --color=auto jenkins

root@ubuntu1804:~# lsof -i:8080
COMMAND   PID    USER   FD   TYPE DEVICE SIZE/OFF NODE NAME
java    17026 jenkins  156u  IPv6  53215      0t0  TCP *:http-alt (LISTEN)

5. jenkins配置文件

root@ubuntu1804:~# vim /etc/default/jenkins 
root@ubuntu1804:~# grep "^[a-Z]" /etc/default/jenkins 
NAME=jenkins
JAVA_ARGS="-Djava.awt.headless=true"
PIDFILE=/var/run/$NAME/$NAME.pid
JENKINS_USER=$NAME # $NAME 影響大 配置文件中$NAME 
JENKINS_GROUP=$NAME # 想要更改 改具體用戶
JENKINS_WAR=/usr/share/$NAME/$NAME.war
JENKINS_HOME=/var/lib/$NAME
RUN_STANDALONE=true
JENKINS_LOG=/var/log/$NAME/$NAME.log
JENKINS_ENABLE_ACCESS_LOG="no"
MAXOPENFILES=8192
HTTP_PORT=8080
PREFIX=/$NAME
JENKINS_ARGS="--webroot=/var/cache/$NAME/war --httpPort=$HTTP_PORT"

6.訪問web界面

systemctl start jenkins
systemctl enable jenkins

ip:8080

7. 解鎖並下一步

# cat /var/lib/jenkins/secrets/initialAdminPassword

8. jenkins離線問題解決

1. 如果顯示jenkins已離線，將以下文件中的更新檢查地址改成國內清華大學地址，然後重啓jenkins即可

   # cat /var/lib/jenkins/hudson.model.UpdateCenter.xml
   <?xml version='1.1' encoding='UTF-8'?>
   <sites>
   <site>
    <id>default</id>
    <url>https://mirrors.tuna.tsinghua.edu.cn/jenkins/updates/update-center.json</url> #此處更換爲清華源地址
   </site>
   </sites>
   

   systemctl restart jenkins
   

2. 修改完如果還是離線

# vim /var/lib/jenkins/updates/default.json

將圖下的goole改爲www.baidu.com即可，更改完重啓服務
我的習慣是出現這種情況 更改完，安裝完插件再將上述的baidu改回goole