Jenkins:如何在Nginx反向代理后面配置Jenkins，以便JNLP从站进行连接

我正在尝试建立一个Jenkins主节点和一个Jenkins从节点，其中Jenkins主节点位于另一台具有SSL终止功能的服务器上的Nginx反向代理之后. nginx的配置如下:

I am trying to set up a Jenkins master and a Jenkins slave node where the Jenkins Master is behind Nginx reverse proxy on a different server with SSL termination. The nginx configuration is as following:

upstream jenkins {
  server <server ip>:8080 fail_timeout=0;
}

server {
  listen 443 ssl;
  server_name jenkins.mydomain.com;
  ssl_certificate /etc/nginx/certs/mydomain.crt;
  ssl_certificate_key /etc/nginx/certs/mydomain.key;

  location / {
    proxy_set_header        Host $host:$server_port;
    proxy_set_header        X-Real-IP $remote_addr;
    proxy_set_header        X-Forwarded-For $proxy_add_x_forwarded_for;
    proxy_set_header        X-Forwarded-Proto $scheme;
    proxy_redirect          http:// https://;
    proxy_pass              http://jenkins;
  }
}

server {
  listen 80;
  server_name jenkins.mydomain.com;
  return 301 https://$server_name$request_uri;
}

在Jenkins主全局安全性配置中，用于JNLP代理的TCP端口设置为50000.端口50000设置为可从主机上的任何位置访问.

The TCP port for JNLP agents is set as 50000 in Jenkins master Global Security configuration. Port 50000 is set to be accessible from anywhere on the host machine.

使用以下命令启动JNLP从站:

The JNLP slave is launched with the following command:

java -jar slave.jar -jnlpUrl https://jenkins.mydomain.com/computer/slave-1/slave-agent.jnlp -secret <secret>

JNLP从站无法连接到主站上已配置的JNLP端口:

The JNLP slave fails to connect to the configured JNLP port on the master:

INFO: Connecting to jenkins.mydomain.com:50000 (retrying:4)
java.net.ConnectException: Connection timed out
        at java.net.PlainSocketImpl.socketConnect(Native Method)
        at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
        at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
        at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
        at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
        at java.net.Socket.connect(Socket.java:589)
        at java.net.Socket.connect(Socket.java:538)
        at hudson.remoting.Engine.connect(Engine.java:400)
        at hudson.remoting.Engine.run(Engine.java:298)

JNLP从属服务器连接到Jenkins主服务器需要什么配置?

What is the configuration required for the JNLP slave to connect to the Jenkins master?