access tomcat application via the domain name - dns

Question

I have a virtual cloud server on aws where there is tomcat 7 running on port 8080 eg. a.x.y.z:8080 (where a.x.y.z is the public ip). I have an application deployed on the tomcat on context path "hello" so that I can access it like a.x.y.z:8080/hello .
Now I have bought a domain name example.com and have translated it to the public ip a.x.y.z so that now I can access my application via the url example.com:8080/hello but actually what I want is that on hitting example.com I would be able to access my application. How to achieve it ?

Answer 1

You can access your tomcat application with your domain name using mod_proxy modules, please login your server and update your httpd configuration with following code.
ProxyPreserveHost On
ProxyPass / http://0.0.0.0:8080/
ProxyPassReverse / http://0.0.0.0:8080/
NOTE : Update your correct server IP instead of 0.0.0.0 in above code.

Answer 2

Ok, I solved the issue :
After installing apache2, in the /etc/apache2/apache2.conf file
I appended :
<VirtualHost *:80>
ProxyPreserveHost On
ProxyRequests Off
ServerName www.example.com
ServerAlias example.com
ProxyPass / http://localhost:8080/
ProxyPassReverse / http://localhost:8080/
</VirtualHost>
Saved the file and restarted the apache2 server.
With this, whenever I hit example.com, I will get the homepage of tomcat (localhost:8080). then i opened the tomcat manager (example.com/manager/html) and stopped & undeployed the application at root (/) path. (As a result of this, whenever you hit example.com, you will no longer see tomcat homepage, instead a blank page)
Now I deployed my application as root in tomcat. If you are using maven you can do so like here .
As a result of this my application was available in example.com .
(If you don't deploy your application as root, you have to access it using example.com/myapp)
Now, whenever I hit example.com myapp will be accessed.