如何更新CentOS上的Jenkins版本

??CentOS???Jenkins??,????????????:

1. ????

?????????,?????Jenkins?????,????????????

2. ?????Java

Jenkins??Java??,??????????Java???Jenkins?????,??????Java 11????????????????OpenJDK 11:

sudo yum install java-11-openjdk-devel -y

??Java??????:

java -version

3. ???????Jenkins

??Jenkins????(https://www.jenkins.io/download/)????????Jenkins?

4. ?????????Jenkins

???????Jenkins??:

sudo systemctl stop jenkins

??????Jenkins(???/var/lib/jenkins???):

sudo rm -rf /var/lib/jenkins

5. ????Jenkins????

sudo mkdir -p /var/lib/jenkins
sudo chown -R jenkins:jenkins /var/lib/jenkins

6. ??????????Jenkins WAR??

??wget?????????Jenkins WAR??,??????/var/lib/jenkins???:

wget https://pkg.jenkins.io/redhat-stable/jenkins.war -P /var/lib/jenkins

7. ???????Systemd????

??????Systemd????,????????Jenkins:

sudo nano /etc/systemd/system/jenkins.service

?????????????,???????:

[Unit]
Description=Jenkins
After=syslog.target network.target

[Service]
User=jenkins
Group=jenkins
WorkingDirectory=/var/lib/jenkins
ExecStart=/usr/bin/java -Djava.awt.headless=true -jar /var/lib/jenkins/jenkins.war --webroot=/var/cache/jenkins/war --httpPort=8080
Restart=always

[Install]
WantedBy=multi-user.target

????Systemd??:

sudo systemctl daemon-reload

??????Jenkins??:

sudo systemctl start jenkins

??Jenkins????:

sudo systemctl enable jenkins

8. ??Jenkins???????

?????,??http://your_server_ip:8080,?????Jenkins???(admin)???(admin)??,???????

??????,?????CentOS?????Jenkins??????????,???Jenkins????????????