coordinator_storage_quota_in_mb should be optional for azurerm_cosmosdb_postgresql_cluster when it's a read replica

[leilifremont]

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Terraform Version

1.5.5

AzureRM Provider Version

3.76.0

Affected Resource(s)/Data Source(s)

azurerm_cosmosdb_postgresql_cluster

Terraform Configuration Files

resource "azurerm_resource_group" "rg" {
  name     = "testrg"
  location = "eastus"
}

resource "random_password" "cosmosdb_postgresql_passwords" {
  length           = 24
  min_upper        = 6
  min_lower        = 4
  min_numeric      = 6
  special          = false

  depends_on = [
    resource.azurerm_resource_group.rg
  ]
}

resource "azurerm_cosmosdb_postgresql_cluster" "primary_replica" {
  name                            = "primary"
  location                        = "eastus"
  resource_group_name             = azurerm_resource_group.rg.name
  administrator_login_password    = random_password.cosmosdb_postgresql_passwords.result
  coordinator_storage_quota_in_mb = 131072
  coordinator_vcore_count         = 2
  node_count                      = 2
  node_storage_quota_in_mb        = 131072
  node_vcores                     = 2
  node_server_edition             = "MemoryOptimized"

  coordinator_public_ip_access_enabled = false
  citus_version                        = "12.1"
  sql_version                          = "16"

  depends_on = [
    random_password.cosmosdb_postgresql_passwords
  ]
}

resource "time_sleep" "wait_20_minutes" {
  create_duration = "1200s"
  triggers = {
    postgresql_cluster_id  = azurerm_cosmosdb_postgresql_cluster.primary_replica.id
  }
}

resource "azurerm_cosmosdb_postgresql_cluster" "read_replica" {
  name                            = "secondary"
  resource_group_name             = azurerm_resource_group.rg.name
  location                        = "westus3"
  source_location      = azurerm_cosmosdb_postgresql_cluster.primary_replica.location
  source_resource_id   = azurerm_cosmosdb_postgresql_cluster.primary_replica.id
  administrator_login_password    = random_password.cosmosdb_postgresql_passwords.result
  coordinator_storage_quota_in_mb = 131072
  coordinator_vcore_count         = 2
  node_count                      = 2
  node_storage_quota_in_mb        = 131072
  node_vcores                     = 2
  node_server_edition             = "MemoryOptimized"

  coordinator_public_ip_access_enabled = true
  citus_version                        = "12.1"
  sql_version                          = "16"

  depends_on = [
    time_sleep.wait_20_minutes
  ]
}

Debug Output/Panic Output

│ Error: updating Server Groupsv 2 (Subscription: "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
│ Resource Group Name: "PeterTest10252023"
│ Server Groupsv 2 Name: "peter1025secondary"): performing Update: unexpected status 400 with error: bad_request: Disk size cannot be updated on read replicas.
│
│   with azurerm_cosmosdb_postgresql_cluster.read_replica,
│   on main.tf line 107, in resource "azurerm_cosmosdb_postgresql_cluster" "read_replica":
│  107: resource "azurerm_cosmosdb_postgresql_cluster" "read_replica" {

Expected Behaviour

coordinator_storage_quota_in_mb should be optional for azurerm_cosmosdb_postgresql_cluster when it's a read replica.

I reported similar issue from here:
#23734

It seems there are other parameters should be optional for read replica of azurerm_cosmosdb_postgresql_cluster. For example, coordinator_vcore_count. Please check and fix those as well.

Actual Behaviour

╷
│ Error: updating Server Groupsv 2 (Subscription: "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
│ Resource Group Name: "PeterTest10252023"
│ Server Groupsv 2 Name: "peter1025secondary"): performing Update: unexpected status 400 with error: bad_request: Disk size cannot be updated on read replicas.
│
│ with azurerm_cosmosdb_postgresql_cluster.read_replica,
│ on main.tf line 107, in resource "azurerm_cosmosdb_postgresql_cluster" "read_replica":
│ 107: resource "azurerm_cosmosdb_postgresql_cluster" "read_replica" {

Steps to Reproduce

No response

Important Factoids

No response

References

No response

[rcskosir]

Thank you for taking the time to open this issue. Please subscribe to PR #23938 created by @neil-yechenwei for this issue.

[github-actions]

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