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javanginxjettyring

How do I configure nginx as proxy to jetty?


I've been trying to set up nginx as proxy to jetty. I want to do something as explained in this answer but for Jetty not ring.

I've created a .war and I placed it in ~/jetty/jetty-dist/webapps/web_test-0.1.0-SNAPSHOT-standalone.war

Say, I want to use the domain example.com with ip address 198.51.100.0.

I've also copied /etc/nginx/sites-available/default into the file example.com and I have it in the same directory.

Can you help me configure nginx as proxy to jetty in my case? I know there are many references online about how to do this but they are all different and I got confused.

What specific changes do I need to make in nginx? What changes do I need to make in jetty.xml? Do I need to make any other changes? Will my app be served at example.com/index.html?

Current state of nginx is copied below:

upstream jetty {
  server 127.0.0.1:8080 fail_timeout=0
}

server {
        listen 80 default_server;
        #listen [::]:80 default_server ipv6only=on;

        root /usr/share/nginx/html;
        index index.html index.htm;

        server_name localhost;

        location / {
                proxy_pass http://jetty

                try_files $uri $uri/ =404;
        }

EDIT

I was wondering if I need to use Jetty at all. In this setup he just uses ring, which seems super easy? What do I gain by using jetty?



Solution

  • How to configure nginx to work with a java server. In the example Jetty is used.

    Edit /etc/nginx/sites-available/hostname:

    server {
      listen       80;
      server_name  hostname.com;
    
      location / {
        proxy_pass       http://localhost:8080;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header Host $http_host;
      }
    }
    

    Consider disabling external access to port 8080:

    /sbin/iptables -A INPUT -p tcp -i eth0 --dport 8080 -j REJECT --reject-with tcp-reset
    

    An example Jetty configuration (jetty.xml) might resemble:

    <?xml version="1.0" encoding="utf-8"?>
    <!DOCTYPE Configure PUBLIC "-//Jetty//Configure//EN" "http://www.eclipse.org/jetty/configure_9_0.dtd">
    
    <!--
     | http://eclipse.org/jetty/documentation/current/configuring-connectors.html
     +-->
    <Configure id="Server" class="org.eclipse.jetty.server.Server">
      <New id="httpConfig" class="org.eclipse.jetty.server.HttpConfiguration">
        <Set name="secureScheme">https</Set>
        <Set name="securePort"><Property name="jetty.tls.port" default="8443" /></Set>
        <Set name="outputBufferSize">65536</Set>
        <Set name="requestHeaderSize">8192</Set>
        <Set name="responseHeaderSize">8192</Set>
      </New>
      <Call name="addConnector">
        <Arg>
          <New class="org.eclipse.jetty.server.ServerConnector">
            <Arg name="server"><Ref refid="Server" /></Arg>
            <Arg name="acceptors" type="int"><Property name="http.acceptors" default="-1"/></Arg>
            <Arg name="selectors" type="int"><Property name="http.selectors" default="-1"/></Arg>
            <Arg name="factories">
              <Array type="org.eclipse.jetty.server.ConnectionFactory">
                <Item>
                  <New class="org.eclipse.jetty.server.HttpConnectionFactory">
                    <Arg name="config"><Ref refid="httpConfig" /></Arg>
                  </New>
                </Item>
              </Array>
            </Arg>
            <Set name="host"><Property name="jetty.host" default="localhost" /></Set>
            <Set name="port"><Property name="jetty.port" default="8080" /></Set>
          </New>
        </Arg>
      </Call>
    </Configure>
    

    This will cause Jetty to listen on localhost:8080 and nginx to redirect requests from domain.com:80 to the Jetty server.