IssueTracker

Please describe your requested enhancement. Good feature requests will solve common problems or enable new use cases.

What you would like to accomplish:

The aim is to create an Instance Group using Google Deployment Manager where all instances in the group have a display enabled for remote desktop. To do this I need to be able to create an instanceTemplate object with displayDevice configured with enableDisplay:true. I would then use this template when creating the instanceGroup.

In UI I can create an instance template of the right type and when viewing the REST Alternative is shows

{
  "name": "my-template",
  "description": "",
  "properties": {
    "machineType": "n1-standard-2",
    "displayDevice": {
      "enableDisplay": true
    },
   ....
}

However if I use displayDevice in my instanceTemplate within a Deployment Manager template it doesn't set displayDevice. This, I believe, is because the REST API for instanceTemplate is missing displayDevice: https://cloud.google.com/compute/docs/reference/rest/v1/instanceTemplates

How this might work:

Extend the REST API for instanceTemplates and then add this support through into deployment manager, e.g.

- name: my-template
  type: compute.v1.instanceTemplates
  properties:
    properties:
      machineType: n1-standard-2
      displayDevice:
        enableDisplay: true

See attached file as a sample

gcloud deployment-manager deployments create mytest --template mydeploy.yml.jinja

If applicable, reasons why alternative solutions are not sufficient:

There is no other full automated alternative that I can find. You can create individual instances with Deployment Manager and use sourceInstanceTemplate plus setting displayDevice, but this removes the intended function to create an Instance Group that can be scaled up and down.

I could use the command-line

gcloud compute instances update [INSTANCE_NAME] --enable-display-device

but again, this isn't going to work when an Instance Group will change the number of instances over time.

Other information (workarounds you have tried, documentation consulted, etc):

https://cloud.google.com/compute/docs/reference/rest/v1/instances/insert