This interface allows you to deploy applications with the Phusion Passenger® application server. A Phusion Passenger server functions as a process manager, reverse proxy, and provides operations tools to its users.
This interface works on servers that run Apache and NGINX®.
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:
Package
Description
ea-apache24-mod_env
This module allows your application configuration to set environment variables for your application.
ea-nodejs16
ea-nodejs18
ea-nodejs20
ea-nodejs22
These packages provide Node.js™ application support.
When you install a Node.js package, it will uninstall any other Node.js packages. You must update any existing applications to use the new version of Node.js. Any new applications will use the newest installed version of Node.js.
Python™
Install the appropriate version of python for your applications.
The Application Manager uses /usr/bin/python3 by default if it exists. If it does not exist, the Application Manager uses /usr/bin/python by default. If you want to use another version by default, add the path to your preferred version with the following command:
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:
Anything you create in these interfaces won’t work with the Application Manager feature:
cPanel’s Ruby on Rails interface (cPanel » Home » Software » Ruby on Rails).
cPanel’s RubyGems interface (cPanel » Home » Software » RubyGems).
The Ruby Gem installer section of WHM’s Module Installers interface (WHM » Home » Software » Module Installers).
We plan to remove these interfaces in a future cPanel & WHM version.
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:
.1Click Register Application. A new interface will appear.
.2Enter the application’s name in the Application Name text box.
.3From the Deployment Domain menu, select the main domain, addon domain, or subdomain to which to deploy the application.
.4Enter 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.
.5Enter the path to your source code directory, relative to the home directory, in the Application Path text box.
.6Select 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.
.7If you want to add environment variables, click Add Variable in the Environment Variables section.
.8Click 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:
Item
Description
Variable Name
The environment variable’s name.
An environment variable name must meet the following criteria:
The name can only contain letters, numbers, underscores, and dashes.
The name must contain 256 characters or fewer.
The name cannot begin with a number.
Value
The environment variable’s value.
An environment variable value must contain 1024 or fewer ASCII-printable characters.
Actions
Use the items in this column to perform the following actions:
Edit — Edit the environment variable.
Unregister — Delete the environment variable.
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:
.1In the Environmental Variables section, click Add Variable.
.2Enter the variable’s name in the Environment Variable Name text box in the Variable Name column.
.3Enter a value for the variable in the Environment Variable Value text box in the Value column.
.4Click Save in the Actions column.
Edit an application
To edit an application’s configuration file, perform the following steps:
.1In the table of applications, find the application that you want to edit.
.2In the Actions column, click Edit. A new interface will appear.
.3Make the desired changes.
.4Click 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:
.1In the table of applications, locate the application that you wish to unregister.
.2Click Unregister. A confirmation message will appear.
.3Click 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):