| Eclipse Che Documentation

This procedure describes adding a tool to an already existing workspace, by enabling a dedicated plug-in from the Dashboard.

To add tools that are available as plug-ins into a Che workspace, use one of the following methods:

Enable the plug-in from the Dashboard Plugin tab.
Edit the workspace devfile from the Dashboard Devfile tab.

This procedure uses the Java language support plug-in as an example.

Prerequisites

A running instance of Eclipse Che. To install an instance of Eclipse Che, see Che 'quick-starts'.
An existing workspace defined in this instance of Eclipse Che; see:
- Creating and configuring a new Che workspace
- Creating a workspace from User Dashboard
The workspace must be in a stopped state. To do so:
1. Navigate to the Che Dashboard. See Navigating Che using the Dashboard.
2. In the Dashboard, click the Workspaces menu to open the workspaces list and locate the workspace.
3. On the same row with the displayed workspace, on the right side of the screen, click the Stop button to stop the workspace.
4. Wait a few seconds for the workspace to stop, then configure the workspace by clicking on it.

Procedure

To add the plug-in from the Plug-in registry to an already existing Che workspace, use one of the following methods:

Installing the plug-in from the Plugin tab.
1. Navigate to the Plugin tab.
  
  The list of plug-ins, installed or possible to install, is displayed.
2. Enable the desired plug-in, for example, the Language Support for Java 11, by using the * Enable* slide-toggle.
  
  The plug-in source code is added to the workspace devfile, and the plug-in is now enabled.
3. On the bottom right side of the screen, save the changes by clicking the Save button. + Once the changes are saved, the workspace is restarted.

Installing the plug-in by adding content to the devfile.

Navigate to the Devfile tab.

The devfile structure is displayed.

Locate the component section of the devfile and add the following lines to add the Java language v8 in to the workspace:

 - id: redhat/java8/latest
   type: chePlugin

See the example of the final result:

components:
 - id: redhat/php/latest
   memoryLimit: 1Gi
   type: chePlugin
 - id: redhat/php-debugger/latest
   memoryLimit: 256Mi
   type: chePlugin
 - mountSources: true
   endpoints:
     - name: 8080/tcp
       port: 8080
   memoryLimit: 512Mi
   type: dockerimage
   volumes:
     - name: composer
       containerPath: /home/user/.composer
     - name: symfony
       containerPath: /home/user/.symfony
   alias: php
   image: 'quay.io/eclipse/che-php-7:nightly'
 - id: redhat/java8/latest
   type: chePlugin

Additional resources

Devfile specifications