找到 Java 17 的安装路径
which java
ls -l /usr/lib/jvm/修改 Jenkins 服务配置
sudo nano /etc/systemd/system/jenkins.service修改为
[Unit]
Description=Jenkins Automation Server
After=network.target
[Service]
Type=simple
User=jenkins
Group=jenkins
Environment="JENKINS_HOME=/var/lib/jenkins"
Environment="JAVA_HOME=/usr/lib/jvm/java-17-openjdk-amd64"
ExecStart=/usr/lib/jvm/java-17-openjdk-amd64/bin/java -Djava.awt.headless=true -jar /usr/share/java/jenkins.war --webroot=/var/cache/jenkins/war --httpPort=8090
Restart=on-failure
[Install]
WantedBy=multi-user.target确保目录存在并设置正确的权限
sudo mkdir -p /var/lib/jenkins
sudo mkdir -p /var/cache/jenkins/war
sudo mkdir -p /var/log/jenkins
sudo chown -R jenkins:jenkins /var/lib/jenkins
sudo chown -R jenkins:jenkins /var/cache/jenkins
sudo chown -R jenkins:jenkins /var/log/jenkins重新加载并启动服务
sudo systemctl daemon-reload
sudo systemctl start jenkins检查服务状态
sudo systemctl status jenkins检查详细日志
sudo journalctl -u jenkins -n 50检查 Jenkins WAR 文件
ls -l /usr/share/java/jenkins.war检查端口是否被占用
sudo netstat -tulpn | grep 8090检查系统资源
free -h
df -h获取初始管理员密码
sudo cat /var/lib/jenkins/secrets/initialAdminPassword