update documentation

modules/instance_template/README.md

@@ -20,7 +20,7 @@ See the [simple](../../examples/instance_template/simple) for a usage example.
 | auto\_delete | Whether or not the boot disk should be auto-deleted | `string` | `"true"` | no |
 | automatic\_restart | (Optional) Specifies whether the instance should be automatically restarted if it is terminated by Compute Engine (not terminated by a user). | `bool` | `true` | no |
 | can\_ip\_forward | Enable IP forwarding, for NAT instances for example | `string` | `"false"` | no |
-| confidential\_instance\_type | Defines the confidential computing technology the instance uses. If this is set to "SEV\_SNP", var.min\_cpu\_platform will be automatically set to "AMD Milan". | `string` | `""` | no |
+| confidential\_instance\_type | Defines the confidential computing technology the instance uses. If this is set to "SEV\_SNP", var.min\_cpu\_platform will be automatically set to "AMD Milan". | `string` | `null` | no |
 | description | The template's description | `string` | `""` | no |
 | disk\_encryption\_key | The id of the encryption key that is stored in Google Cloud KMS to use to encrypt all the disks on this instance | `string` | `null` | no |
 | disk\_labels | Labels to be assigned to boot disk, provided as a map | `map(string)` | `{}` | no |

modules/instance_template/metadata.yaml

@@ -151,7 +151,6 @@ spec:
       - name: confidential_instance_type
         description: Defines the confidential computing technology the instance uses. If this is set to "SEV_SNP", var.min_cpu_platform will be automatically set to "AMD Milan".
         varType: string
-        defaultValue: ""
       - name: description
         description: The template's description
         varType: string