Terraform is unable to populate usernameSource properly

[mbrosius]

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Terraform Version

1.2.2

AzureRM Provider Version

HPC cache 14.1.0

Affected Resource(s)/Data Source(s)

HPC Cache

Terraform Configuration Files

"directoryServicesSettings": {
      "usernameDownload": {
        "extendedGroups": false,
        "usernameSource": "None",
        "groupFileURI": "",
        "userFileURI": "",
        "ldapServer": "",
        "ldapBaseDN": "",
        "encryptLdapConnection": false,
        "requireValidCertificate": false,

Debug Output/Panic Output

2022-08-01T12:55:09.676-0400 [DEBUG] provider.terraform-provider-azurerm_v2.66.0_x5: AzureRM Request:
GET /subscriptions/e981345d-8588-42e9-8bbf-57299b1f30ad/resourceGroups/vdbench4_hpc_filer_rg/providers/Microsoft.Network/networkInterfaces/nasfiler1-nic?api-version=2020-11-01 HTTP/1.1
Host: management.azure.com
User-Agent: Go/go1.16.3 (amd64-linux) go-autorest/v14.2.1 Azure-SDK-For-Go/v55.3.0 network/2020-11-01 HashiCorp Terraform/1.2.2 (+https://www.terraform.io) Terraform Plugin SDK/2.7.0 terraform-provider-azurerm/2.66.0 pid-222c6c49-1b0a-5959-a213-6608f9eb8820
X-Ms-Correlation-Request-Id: cfc706a9-ebad-7b9d-755e-3cd566dbc405
Accept-Encoding: gzip: timestamp=2022-08-01T12:55:09.676-0400
2022-08-01T12:55:09.717-0400 [DEBUG] provider.terraform-provider-azurerm_v2.66.0_x5: AzureRM Response for https://management.azure.com/subscriptions/e981345d-8588-42e9-8bbf-57299b1f30ad/resourcegroups/vdbench4_hpccache_rg/providers/Microsoft.StorageCache/caches/ajointhpccache4?api-version=2021-03-01:
HTTP/2.0 200 OK
Cache-Control: no-cache
Content-Type: application/json; charset=utf-8
Date: Mon, 01 Aug 2022 16:55:09 GMT
Expires: -1
Pragma: no-cache
Server: Microsoft-HTTPAPI/2.0
Server: Microsoft-HTTPAPI/2.0
Strict-Transport-Security: max-age=31536000; includeSubDomains
Vary: Accept-Encoding
X-Content-Type-Options: nosniff
X-Ms-Correlation-Request-Id: cfc706a9-ebad-7b9d-755e-3cd566dbc405
X-Ms-Ratelimit-Remaining-Subscription-Reads: 11999
X-Ms-Request-Id: fbfea375-9afa-4736-af22-b9ce292793db
X-Ms-Routing-Request-Id: EASTUS:20220801T165510Z:d263d66e-e500-4d3c-916b-f4b9baaf819e
X-Ms-Served-By: b898e293-1d26-47be-9bc7-2473812d8153_132969477689823239,b898e293-1d26-47be-9bc7-2473812d8153_132969477689823239

{
"name": "ajointhpccache4",
"id": "/subscriptions/e981345d-8588-42e9-8bbf-57299b1f30ad/resourceGroups/vdbench4_hpccache_rg/providers/Microsoft.StorageCache/caches/ajointhpccache4",
"type": "Microsoft.StorageCache/caches",
"location": "eastus2",
"tags": {},
"sku": {
"name": "Standard_2G"
},
"properties": {
"networkSettings": {
"mtu": 1500,
"utilityAddresses": [
"10.0.1.10",
"10.0.1.11",
"10.0.1.12"
],
"ntpServer": "time.windows.com"
},
"securitySettings": {
"accessPolicies": [
{
"name": "default",
"accessRules": [
{
"scope": "default",
"access": "rw",
"suid": false,
"submountAccess": true,
"rootSquash": false
}
]
}
]
},
"directoryServicesSettings": {
"usernameDownload": {
"extendedGroups": false,
"usernameSource": "None",
"groupFileURI": "",
"userFileURI": "",
"ldapServer": "",
"ldapBaseDN": "",
"encryptLdapConnection": false,
"requireValidCertificate": false,

Expected Behaviour

The expected behavior is that the defaults are the same as an empty set.

Actual Behaviour

when usernameSource is set to "None", we see the following response:
¦ Error: source type "None" is not supported
¦
¦ with azurerm_hpc_cache.hpc_cache,
¦ on main.tf line 108, in resource "azurerm_hpc_cache" "hpc_cache":
¦ 108: resource "azurerm_hpc_cache" "hpc_cache" {

When usernameSource is toggled on/off, the value is set to "". Then we see the following output:
source type "" is not supported

Steps to Reproduce

No response

Important Factoids

No response

References

No response

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