java Jenkins在Jenkins运行时没有运行。战争没有爆发

Question

我正在尝试为我正在从事的selenium/maven项目自动安排Jenkins的工作。一切都正常运行，自动调度只有在。jar文件正在运行（使用命令：java -jar jenkins.war --httpPort=8089）。但一旦我退出命令提示符和Jenkins服务器，它就根本不会运行。我的假设是，无论连接与否，无论计算机是否登录，它都应该运行

在我看来，当詹金斯夫妇去世时，詹金斯的自动计程系统似乎不工作了。war文件未启动并运行

我错过什么了吗

Answer 1

如果未执行.war文件，则整个jenkins进程将不会运行。问题是你如何管理詹金斯

这里有extensive documentation如何运行它。然而，我最终在一个支持systemd的操作系统（linux）上运行，它有一个system.d服务文件：/usr/lib/systemd/system/jenkins.service：

[Unit]
Description=Jenkins
Documentation=https://wiki.jenkins.io/display/JENKINS/Use+Jenkins
After=network.target
Requires=network.target

[Service]
Type=simple
EnvironmentFile=/etc/default/jenkins
ExecStart=/home/jenkins/jdk/jdk1.8.0_121/bin/java -Xmx2048m -Xms1024m -DJENKINS_HOME=/home/jenkins -jar /home/jenkins/jenkins.war  javaHome=/home/jenkins/jdk/jdk1.8.0_121  httpPort=8080  webroot=/var/cache/jenkins/war  ajp13Port=-1  debug=5  handlerCountMax=100  handlerCountMaxIdle=20
# Restart=always
# RestartSec=120
User=jenkins

[Install]
WantedBy=multi-user.target

与：/etc/default/jenkins

# Managed manually
JENKINS_HOME="/home/jenkins"
#JENKINS_LOGFILE="/home/jenkins/jenkins.log"

# TODO: manage JAVA_HOME through java-alternatives
JAVA_HOME="/home/jenkins/jdk/jdk1.8.0_121"
JAVA_OPTIONS="-Xmx2048m -Xms1024m"

# Web Configuration
HTTP_WEB_ROOT="/var/cache/jenkins/war"
HTTP_PORT="8080"
HTTP_LISTEN_ADDRESS="0.0.0.0"

# Jenkins Configurations
#   more: https://wiki.jenkins.io/display/JENKINS/Starting+and+Accessing+Jenkins
JENKINS_ARGS=" ajp13Port=-1  debug=5  handlerCountMax=100  handlerCountMaxIdle=20"

$ systemctl status jenkins
● jenkins.service - Jenkins
   Loaded: loaded (/usr/lib/systemd/system/jenkins.service; linked; vendor preset: disabled)
   Active: active (running) since Wed 2021-03-31 10:08:36 EDT; 1 weeks 1 days ago
     Docs: https://wiki.jenkins.io/display/JENKINS/Use+Jenkins
 Main PID: 27219 (java)
    Tasks: 70 (limit: 512)
   CGroup: /system.slice/jenkins.service
           └─27219 /home/jenkins/jdk/jdk1.8.0_121/bin/java -Xmx2048m -Xms1024m

并通过Apache HTTP服务器，通过ProxyPath发布：

$ systemctl status apache
● apache2.service - The Apache Webserver
   Loaded: loaded (/usr/lib/systemd/system/apache2.service; enabled; vendor preset: disabled)
   Active: active (running) since Tue 2021-02-02 12:34:05 EST; 2 months 4 days ago
  Process: 30426 ExecReload=/usr/sbin/start_apache2 -DSYSTEMD -DFOREGROUND -k graceful (code=exited, status=0/SUCCESS)
 Main PID: 18524 (httpd-prefork)
   Status: "Total requests: 0; Current requests/sec: 0; Current traffic:   0 B/sec"
    Tasks: 11
   CGroup: /system.slice/apache2.service

使用Apache HTTP虚拟主机配置：

<IfDefine SSL>
<IfDefine !NOSSL>

##
## SSL Virtual Host Context
##

<VirtualHost _default_:443>

  ProxyPass         /  http://localhost:8080/ nocanon
  ProxyPassReverse  /  http://localhost:8080/

  # ProxyRequests     Off
  ProxyPreserveHost On
  AllowEncodedSlashes NoDecode

  <Proxy http://localhost:8080/*>
    Require all granted
  </Proxy>

  # ProxyPassMatch  ^/(?\!.well-known)  http://localhost:8080 nocanon

  ErrorLog /var/log/apache2/error_log
  TransferLog /var/log/apache2/access_log

  #   SSL Engine Switch:
  #   Enable/Disable SSL for this virtual host.
  SSLEngine on

  #   You can use per vhost certificates if SNI is supported.
  SSLCertificateFile /etc/apache2/ssl.crt/<your-server>.com.crt
  SSLCertificateKeyFile /etc/apache2/ssl.key/<your-server>.com.key

  CustomLog /var/log/apache2/ssl_request_log   ssl_combined

</VirtualHost>

</IfDefine>
</IfDefine>

相同的配置设置，但通过NGINX:Jenkins reverse-proxy configuration nginx

通过这种方式，您可以管理jenkins服务器（启动/停止）和TLS（SSL）通信：

systemctl status jenkins nginx

如果你通过Docker运行Jenkins，你不需要在Jenkins前面公开另一个Web服务器（例如Apache/NGINX），你不会公开Jenkins Docker容器，但你前面可能有一个Kubernetes/（a）LB。不建议公开揭露詹金斯

Web服务器为您提供了在Jenkins面前使用缓存或CDN的灵活性，尤其是当您使用发布工件功能时