Using a cf CLI plug-in

The Cloud Foundry CLI (cf CLI) includes plug-in capability. Plug-ins allow you to add custom commands to the cf CLI.

You can install and use the plug-in that Cloud Foundry developers and third-party developers create. For a current list of community-supported plug-ins, see the Cloud Foundry Community CLI Plug-in page. For information about submitting your own plug-in, see the Cloud Foundry CLI Plugin Repository (CLIPR) repository on GitHub.

Important Plug-ins are not vetted for security or function. Use plug-ins at your own risk.

The cf CLI identifies a plug-in by binary filename, its developer defined plug-in name, and the commands that the plug-in provides. Use the binary filename only to install a plug-in. You use the plug-in name or a command for any other action.

The cf CLI uses case-sensitive commands, but plug-in management commands accept plug-in and repository names irrespective of their casing.

Changing the plug-in directory

By default, the cf CLI stores plug-ins on your workstation in $CF_HOME/.cf/plugins, which defaults to $HOME/.cf/plugins.

To change the root directory of this path from $CF_HOME, you must set the CF_PLUGIN_HOME environment variable.

The cf CLI appends .cf/plugins to the CF_PLUGIN_HOME path that you specify and stores plug ins in that location. For example, if you set CF_PLUGIN_HOME to /my-folder, cf CLI stores plug-ins in /my-folder/.cf/plugins.

Installing a plug-in

To install a plug-in:

Download a binary or the source code for a plug-in from a trusted provider.

The cf CLI requires a binary file compiled from source code written in Go. If you download source code, you must compile the code to create a binary.

Run:
```
cf install-plugin BINARY-FILENAME
```
Where BINARY-FILENAME is the path to and name of your binary file.

You cannot install a plug in that has the same name or that uses the same command as an existing plugin. If you attempt to do so, you are prompted to uninstall the existing plugin.

The cf CLI prohibits you from implementing any plug-in that uses a native cf CLI command name or alias. For example, if you attempt to install a third-party plugin that includes the cf push command, the cf CLI halts the installation.

For more information, see install-plugin in the Cloud Foundry CLI Reference Guide.

Managing plug-ins and running plug-in commands

Use the contents of the cf help CLI plug-in management and Commands offered by installed plug-ins sections to manage plug-ins and run plug-in commands.

To manage plug-ins and run plug-in commands:

List all installed plug-ins and all commands that the plug-ins provide by running:
```
cf plugins
```
Run a plug-in command:
```
cf PLUGIN-COMMAND
```
Where PLUGIN-COMMAND is the plug-in command that you want to run.

Checking for plug-in updates

To check all registered plug-in repositories for newer versions of currently installed plug-ins:

Run:
```
cf plugins --outdated
```

See the output of the previous command, in this example:

$ cf plugins --outdated
Searching CF-Community, company-repo for newer versions of installed plugins...
plugin          version   latest version
coffeemaker     1.1.2     1.2.0
Use 'cf install-plugin' to update a plugin to the latest version.

For more information about the cf plugins command, see cf plugins in the Cloud Foundry CLI Reference Guide.

Uninstalling a plug-in

To uninstall a plug-in:

To view the names of all installed plug-ins, run:
```
cf plugins
```
Run:
```
cf uninstall-plugin PLUGIN-NAME
```
Where PLUGIN-NAME is the name of the plug-in you want to uninstall.

You must use the name of the plug-in, not the binary filename, to uninstall it.

For more information, see uninstall-plugin in the Cloud Foundry CLI Reference Guide.

Adding a plug-in repository

To add a plug-in repository:

Run:
```
cf add-plugin-repo REPOSITORY-NAME-URL
```
Where REPOSITORY-NAME-URL is the URL of the plug-in repository that you want to add.

For more information, see add-plugin-repo in the Cloud Foundry CLI Reference Guide.

Viewing available plug-in repositories

To view your available plug-in repositories:

Run:
```
cf list-plugin-repos
```

For more information, see list-plugin-repos in the Cloud Foundry CLI Reference Guide.

Listing all plug-ins by repository

To show all plug-ins from all available repositories:

Run:
```
cf repo-plugins
```

For more information, see repo-plugins in the Cloud Foundry CLI Reference Guide.

Troubleshooting

The cf CLI provides the following error messages to help you troubleshoot installation and usage issues. Third-party plug-ins provide their own error messages.

Permission denied

If you receive a permission denied error message, you lack required permissions to the plug-in. You must have read and execute permissions to the plug-in binary file.

Plug-in command collision

Plug-in names and commands must be unique. The CLI displays an error message if you attempt to install a plug-in with a non unique name or command.

If the plug-in has the same name or command as a currently installed plug-in, you must uninstall the existing plug-in to install the new plug-in.

If the plug-in has a command with the same name as a native cf CLI command or alias, you cannot install the plug-in.