Question

Mapping subdomain to tomcat web application

I have a subdomain test.example.com. I have a java web application running in tomcat 8.5 on port 8086.

In /opt/tomcat/conf/server.xml I have a virtual host defined like below.

<Host name="test.example.com" appBase="webapps/myapp-0.2" unpackWARs="true" autoDeploy="true">
        <Alias>www.test.example.com</Alias>
        <Valve className="org.apache.catalina.valves.AccessLogValve" directory="logs"
               prefix="test_access_log" suffix=".txt"
               pattern="%h %l %u %t &quot;%r&quot; %s %b" />
      </Host>

I have an apache2 conf defines like below. /etc/apache2/sites-available/test.example.com.conf

<VirtualHost *:80>
        # The ServerName directive sets the request scheme, hostname and port that
        # the server uses to identify itself. This is used when creating
        # redirection URLs. In the context of virtual hosts, the ServerName
        # specifies what hostname must appear in the request's Host: header to
        # match this virtual host. For the default virtual host (this file) this
        # value is not decisive as it is used as a last resort host regardless.
        # However, you must set it for any further virtual host explicitly.
        #ServerName www.example.com

        ServerAdmin webmaster@localhost
        ServerName test.example.com
        ServerAlias www.test.example.com.com
        DocumentRoot /var/www/test.example.com/public_html

        <Directory /var/www/test.example.com/public_html>
                Options Indexes FollowSymLinks MultiViews
                AllowOverride All
                Order allow,deny
                allow from all
        </Directory>

        # Available loglevels: trace8, ..., trace1, debug, info, notice, warn,
        # error, crit, alert, emerg.
        # It is also possible to configure the loglevel for particular
        # modules, e.g.
        #LogLevel info ssl:warn

        ErrorLog ${APACHE_LOG_DIR}/error.log
        CustomLog ${APACHE_LOG_DIR}/access.log combined

        # For most configuration files from conf-available/, which are
        # enabled or disabled at a global level, it is possible to
        # include a line for only one particular virtual host. For example the
        # following line enables the CGI configuration for this host only
        # after it has been globally disabled with "a2disconf".
        #Include conf-available/serve-cgi-bin.conf
</VirtualHost>

In public_html I have .htaccess defined like below.

RedirectPermanent / http://test.example.com:8086

My goal is to be able to hit the myapp-02 tomcat web app on port 8086 like so http://canicarry.thehatapps.com:8086

I’m not sure what’s wrong but I get 404. I can’t seem to resolve http://canicarry.thehatapps.com:8086 to my web app running in tomcat.

Any help would be appreciated.


Submit an answer

This textbox defaults to using Markdown to format your answer.

You can type !ref in this text area to quickly search our full set of tutorials, documentation & marketplace offerings and insert the link!

Sign In or Sign Up to Answer

These answers are provided by our Community. If you find them useful, show some love by clicking the heart. If you run into issues leave a comment, or add your own answer to help others.

Want to learn more? Join the DigitalOcean Community!

Join our DigitalOcean community of over a million developers for free! Get help and share knowledge in Q&A, subscribe to topics of interest, and get courses and tools that will help you grow as a developer and scale your project or business.

Hello,

I would recommend using Apache Reverse Proxy, that way you would be able to pass all requests from http://test.example.com to your Tomcat without even having to add the port at the end.

You can take a look a this step by step guide on how to configure that:

https://www.digitalocean.com/community/tutorials/how-to-use-apache-as-a-reverse-proxy-with-mod_proxy-on-ubuntu-16-04

Hope that this helps! Regards, Bobby