curl --request GET \
  --url https://api.gcore.com/cloud/v1/apptemplates/{project_id}/{region_id}/{apptemplate_id} \
  --header 'Authorization: <api-key>'

{
  "app_config": [
    {
      "description": "<string>",
      "label": "<string>",
      "name": "<string>",
      "required": true,
      "type": "<string>"
    }
  ],
  "category": "<string>",
  "description": "<string>",
  "developer": "<string>",
  "display_name": "<string>",
  "id": "<string>",
  "image_name": "<string>",
  "min_disk": 123,
  "min_ram": 123,
  "min_vcpus": 4,
  "os_name": "<string>",
  "os_version": 20.04,
  "region_id": 1,
  "short_description": "<string>",
  "usage": "<string>",
  "version": "<string>",
  "website": "<string>"
}