feat: Add container outputs (#63)

* Add container_vm output key, and update README.md Outputs block

* Updated README.md after running `make generate_docs`

Co-authored-by: Morgante Pell <[email protected]>

Author: AdamMAtWork

README.md

@@ -85,11 +85,12 @@ Then perform the following commands on the root folder:
 | Name | Description |
 |------|-------------|
 | container | The container definition provided |
+| container\_vm | The complete container VM image object to use for the GCE instance |
 | metadata\_key | The key to assign `metadata_value` to, so container information is attached to the instance |
 | metadata\_value | The generated container configuration |
 | restart\_policy | The restart policy provided |
-| source\_image | The COS image to use for the GCE instance |
-| vm\_container\_label | The COS version to deploy to the instance. To be used as the value for the `vm_container_label_key` label key |
+| source\_image | The self_link to the COS image to use for the GCE instance. Equivalent to container_vm.self_link |
+| vm\_container\_label | The COS version to deploy to the instance. To be used as the value for the `vm_container_label_key` label key. Equivalent to container_vm.name |
 | vm\_container\_label\_key | The label key for the COS version deployed to the instance |
 | volumes | The volume definition provided |
 

output.tf

@@ -25,7 +25,7 @@ output "metadata_value" {
 }
 
 output "source_image" {
-  description = "The COS image to use for the GCE instance"
+  description = "The self_link to the COS image to use for the GCE instance. Equivalent to container_vm.self_link"
   value       = data.google_compute_image.coreos.self_link
 }
 
@@ -35,10 +35,15 @@ output "vm_container_label_key" {
 }
 
 output "vm_container_label" {
-  description = "The COS version to deploy to the instance. To be used as the value for the `vm_container_label_key` label key"
+  description = "The COS version to deploy to the instance. To be used as the value for the `vm_container_label_key` label key. Equivalent to container_vm.name"
   value       = data.google_compute_image.coreos.name
 }
 
+output "container_vm" {
+  description = "The complete container VM image object to use for the GCE instance"
+  value       = data.google_compute_image.coreos
+}
+
 output "container" {
   description = "The container definition provided"
   value       = var.container