12.2. Adding a Cartridge to an Application
When adding a cartridge to an application with the client tools, there are several options available that are used to specify the required information.
| Option | Description |
|---|---|
| -a, --app [NAME] | Name of an application. |
| -n, --namespace [NAME] | Name of a domain. |
| -e, --env [VARIABLE=VALUE] | Environment variable(s) to be set on this cartridge. It can also be a path to a file that contains the environment variables. |
| -g, --gear-size [SIZE] | Gear size determines how much memory and CPU a cartridge consumes. |
| -c, --cartridge [CART_TYPE] | Type of cartridge to add to an application. |
Add a cartridge to an application with the following command, specifying the desired cartridge and the name of the application:
$ rhc cartridge add Cart_Name -a App_Name
Specifying Cartridge Gear Size
When adding a cartridge to an application, specify the cartridge gear size with the -g, or --gear-size option along with the gear size. Note that this option is not available with non-scalable applications, because the web cartridge and any add-on cartridges are placed on the same gear.
$ rhc cartridge add Cart_Name -a App_Name -g gear_size
