Apache virtualhost mod_proxy example

How to setup a virtualhost in Apache
for example
same ip
apache 80 port -> tomcat 8080 port (use reverse proxy)
apache 19080 port -> tomcat 9080 port(use virtual host)

apache conf modifications
Listen 80
Listen 19080

192.168.144.179:19080
>ServerName my.intranet.net
ProxyPreserveHost On
ProxyPass /S010 http://192.168.144.179:9080/
ProxyPassReverse /S010 http://192.168.144.179:9080/

remember to include the modules for mod_proxy

We are going reverse-proxy i.e. send the request to other application servers. apache2 is going to be the reverse proxy server, tomcat and jenkins the other application servers.

To do this you need to enable the mod_proxy module in apache2.

a2enmod proxy
a2enmod proxy_http
a2enmod proxy_ajp
$ ls /etc/apache2/mods-enabled/
access_compat.load    autoindex.load  mpm_prefork.conf  rewrite.load
alias.conf            cgi.load        mpm_prefork.load  setenvif.conf
alias.load            deflate.conf    negotiation.conf  setenvif.load
auth_basic.load       deflate.load    negotiation.load  socache_shmcb.load
authn_core.load       dir.conf        php5.conf         ssl.conf
authn_file.load       dir.load        php5.load         ssl.load
authz_core.load       drupal.conf     proxy_ajp.load    status.conf
authz_groupfile.load  env.load        proxy.conf        status.load
authz_host.load       filter.load     proxy.load
authz_user.load       mime.conf       reqtimeout.conf
autoindex.conf        mime.load       reqtimeout.load

Make changes to 000-default.conf

<VirtualHost *:*>
	...
	ProxyPass /tomcat http://tomcat:8080/
    ProxyPassReverse /tomcat http://tomcat:8080/
	<LocationMatch /tomcat/>
	  Order allow,deny
	  Allow from all
	</LocationMatch>
	...
</VirtualHost>	

Result: http://localhost/tomcat -> http://tomcat:8080