JenkinsJavaWeb启动的代理程序的Linux开机自启服务的设置方法

JenkinsJavaWeb启动的代理程序的Linux开机自启服务的设置方法(已解决)

rc.local和crontab方法(失败)

设置脚本开机启动：

[root@Devops6 ~]#chmod +x /etc/rc.d/rc.local
[root@Devops6 ~]#chmod +x /data/devops6/jenkins_agent/start.sh
[root@Devops6 ~]#vim /etc/rc.d/rc.local
/data/devops6/jenkins_agent/start.sh

⚠️ 注意：

奇怪的问题是：这里设置了开机启动后，但服务依然是无法正常开机启动的……(rc.local和crontab都测试了，依然失败)

[root@Devops6 ~]#cd /data/devops6/jenkins_agent/
[root@Devops6 jenkins_agent]#ll
total 1500
-rw-r--r-- 1 root root 1522481 Mar 19 18:27 agent.jar
-rw------- 1 root root    3927 Mar 20 07:28 nohup.out
-rw-r--r-- 1 root root      65 Mar 19 22:46 secret-file
-rwxr-xr-x 1 root root     556 Mar 19 22:53 start.sh


#配置定时重启
[root@Devops6 ~]#crontab -l
@reboot /data/devops6/jenkins_agent/start.sh

[root@Devops6 jenkins_agent]#cat  /etc/rc.d/rc.local
……
/data/devops6/jenkins_agent/start.sh


#重启后，jenkins agent依然无法正常启动
[root@Devops6 ~]#ps -aux|grep java
1000       7191  8.6 10.7 3021976 199660 pts/0  Sl+  07:34   0:06 java -Duser.home=/var/jenkins_home -Djenkins.model.Jenkins.slaveAgentPort=50000 -Dhudson.lifecycle=hudson.lifecycle.ExitLifecycle -jar /usr/share/jenkins/jenkins.war
root       7419  0.0  0.0 112708   976 pts/0    R+   07:36   0:00 grep --color=auto java

以下这种方法测试：也失败了

systemd方法（成功）

systemd方法测试+chatgpt--测试成功

31c2f3c8dad1613a1ab591e9368793e

$ vim /etc/systemd/system/jenkins-agent.service
[Unit]
Description=Run a Custom Script at Startup
After=default.target
 
[Service]
ExecStart=/root/auto_run_script3.sh
 
[Install]
WantedBy=default.target

$ vim /etc/systemd/system/jenkins-agent.service
[Unit]
Description=Jenkins Agent service
After=network.target

[Service]
Type=simple
User=root
WorkingDirectory=/opt/jenkinsagent
ExecStart=/usr/bin/java -jar /data/devops6/jenkins_agent/agent.jar -jnlpUrl http://172.29.9.101:8080/computer/build01/jenkins-agent.jnlp -secret 0af95ad221aa67897c9cb50ebc57bee4c1cb49e7f8bb42fb65b835cabcae2303
Restart=on-failure

[Install]
WantedBy=multi-user.target

重启后：（符合预期）

进一步改进代码（把secret内容给隐藏起来）--测试成功

[root@Devops6 ~]#cat /etc/systemd/system/jenkins-agent.service
[Unit]
Description=Jenkins Agent service
After=network.target

[Service]
Type=simple
User=root
WorkingDirectory=/opt/jenkinsagent
ExecStart=/usr/bin/java -jar /data/devops6/jenkins_agent/agent.jar -jnlpUrl http://172.29.9.101:8080/computer/build01/jenkins-agent.jnlp -secret @/data/devops6/jenkins_agent/secret-file
Restart=on-failure

[Install]
WantedBy=multi-user.target