Openstack (devstack) Heat template to create vm and app on it

Question

Is it possible, using heat template, create VM instance (eg:. ubuntu) and install on it some application? I want create ubuntu instance and install on it apache ant using heat template

Answer 1

You can use the user_data section of the Server resource to specify a script that installs software.

buildslave:
    type: OS::Nova::Server
    properties:
      ..
      ..
      user_data: |
           #!/bin/bash -v
           apt-get update
           apt-get install ant

The script can also be external to the Heat template:

• How can I populate a heat template in OpenStack with `user_data` without including the script inline?