Using The Application Manager Feature in cPanel

cPanel - Software - Application Manager

The Application Manager interface facilitates the deployment of applications via the Phusion Passenger® application server, which operates as a robust process manager and reverse proxy, while also providing advanced operational tooling. It is designed for environments running either Apache or NGINX® web servers

Requirements

Your hosting provider must select the Application Manager feature in WHM’s Feature Manager interface and install one of the following Apache modules, depending on your operating system:

If needed, your provider should also install the following packages:

Note: For additional setup and troubleshooting information, read cPanel's Using Passenger Applications documentation.

Applications

This table contains the following information:

Actions

Create an application

You must create an application before you register it in the Application Manager interface. For example, you could perform one of the following actions:

• Clone an existing application from GitHub with our Git Version Control interface (cPanel » Home » Files » Git™ Version Control).
• Create a new application on your server. For an examples of how to do this, read the following documentation:
  • How to Create Ruby Web Applications
  • How to Install a Python WSGI Application
  • How to install a Node.js Application

Register an application

This feature configures new applications with the most recent version of Ruby on your system. The installed version of Passenger determines which version of Ruby the system uses. You can’t have more than one version of Passenger installed.

Existing applications will not change their Ruby version. If you uninstall an application’s version of Ruby, your applications will no longer function.

To register an application, perform the following steps:

1. Click Register Application. A new interface will appear.
2. Enter the application’s name in the Application Name text box.
3. From the Deployment Domain menu, select the main domain, addon domain, or subdomain to which to deploy the application.
4. Enter the application’s base URL in the Base Application URL text box. After you register the application, enter this URL in a web browser to access the application.
5. Enter the path to your source code directory, relative to the home directory, in the Application Path text box.
6. Select a deployment environment. This sets the server environment that the application runs in.
   • Click Development if you’re still developing your application.
   • Click Production if you’re ready to deploy and use your application.
7. If you want to add environment variables, click Add Variable in the Environment Variables section.
8. Click Deploy.

Environment Variables

Warning: To add environment variables, your hosting provider must install the ea-apache24-mod_env Apache module.

Environment variables allow you to configure the processes that the application runs on multiple systems. The Environment Variables table contains the following information:

For more information about environment variables, read Phusion Passenger’s Environment Variables documentation.

Add environment variables

To add an environment variable to the application’s configuration file, perform the following steps:

1. In the Environmental Variables section, click Add Variable.
2. Enter the variable’s name in the Environment Variable Name text box in the Variable Name column.
3. Enter a value for the variable in the Environment Variable Value text box in the Value column.
4. Click Save in the Actions column.

Edit an application

To edit an application’s configuration file, perform the following steps:

1. In the table of applications, find the application that you want to edit.
2. In the Actions column, click Edit. A new interface will appear.
3. Make the desired changes.
4. Click Deploy.

Unregister an application

Important: Unregistering an application removes it from the list and deletes its configuration file. It does not delete the application.

To unregister an application, perform the following steps:

1. In the table of applications, locate the application that you wish to unregister.
2. Click Unregister. A confirmation message will appear.
3. Click Unregister to completely unregister the application. A success message will appear.

Log files

You can find your application’s log files in the following locations. In these paths, replace the example directory with the name of the directory where your application is located. You can view these files in cPanel’s File Manager interface (Home » Files » File Manager):