Error: in event_hub_receiver, exactly one of event_hub_id or (event_hub_namespace, event_hub_name) must be set

[mpjtaylor]

Is there an existing issue for this?

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Terraform Version

1.2.7

AzureRM Provider Version

3.35.0

Affected Resource(s)/Data Source(s)

azurerm_monitor_action_group

Terraform Configuration Files

resource "azurerm_monitor_action_group" "support" {
  name                = "AlertsAction"
  resource_group_name = data.azurerm_resource_group.support.name
  short_name          = "alerts"

  event_hub_receiver {
    name                    = "s-alerts"
    event_hub_namespace     = local.management_monitor_namespace_name
    event_hub_name          = "e-alerts"
    subscription_id         = local.management_subscriptionid
    use_common_alert_schema = true
  }
  tags = local.common_tags
}

Debug Output/Panic Output

Error: in event_hub_receiver, exactly one of event_hub_id or (event_hub_namespace, event_hub_name) must be set
with module.terraform-azure_support.azurerm_monitor_action_group.support
on .terraform/modules/terraform-azure_support/log_analytics_workspace.tf line 11, in resource "azurerm_monitor_action_group" "support":

Expected Behaviour

Plan and apply should not change anything nor fail this seems to be random issue, sometimes i need to delete the azurerm_monitor_action_group in the portal and then let it recreate.

Actual Behaviour

Error: in event_hub_receiver, exactly one of event_hub_id or (event_hub_namespace, event_hub_name) must be set

Steps to Reproduce

terraform plan
terraform apply
terraform plan
terraform apply

Important Factoids

No response

References

#18322

[nlighten]

We consistently get this issue as soon as we change something to an azurerm_monitor_action_group that contains an event_hub_receiver. The initial create works but any update fails with

Error: in event_hub_receiver, exactly one of event_hub_id or (event_hub_namespace, event_hub_name) must be set ....

The bug seems to be related to the following change:

https://github.com/hashicorp/terraform-provider-azurerm/pull/17335/files

In the flattenMonitorActionGroupEventHubReceiver function the event_hub_id is always added when the FourPointOhBeta feature toggle equals false. So event_hub_id, event_hub_namespace, event_hub_name and subscription_id are all returned:

terraform-provider-azurerm/internal/services/monitor/monitor_action_group_resource.go

Lines 1106 to 1108 in a478a88

	if !features.FourPointOhBeta() {
	val["event_hub_id"] = eventhubs.NewEventhubID(subscriptionId, resourceGroup, eventHubNamespace, eventHubName).ID()
	}

But the expandMonitorActionGroupEventHubReceiver throws the error we see when the FourPointOhBeta feature toggle equals false and all four items exist:

terraform-provider-azurerm/internal/services/monitor/monitor_action_group_resource.go

Lines 851 to 860 in a478a88

	if !features.FourPointOhBeta() {
	if eventHubNameSpace == "" && eventHubName == "" && subId == "" && val["event_hub_id"].(string) != "" {
	eventHubId, err := eventhubs.ParseEventhubID(*utils.String(val["event_hub_id"].(string)))
	if err != nil {
	return nil, err
	}
	eventHubNameSpace, eventHubName, subId = eventHubId.NamespaceName, eventHubId.EventhubName, eventHubId.SubscriptionId
	} else if val["event_hub_id"].(string) != "" || eventHubNameSpace == "" || eventHubName == "" {
	return nil, fmt.Errorf("in event_hub_receiver, exactly one of event_hub_id or (event_hub_namespace, event_hub_name) must be set")
	}

At a first glance it seems that adding the event_hub_id in flattenMonitorActionGroupEventHubReceiver can be removed from function flattenMonitorActionGroupEventHubReceiver but I am not sure.

@teowa I am not sure if you remember the change. If you do, I would appreciate your thoughts on the above.

[teowa]

Hi @mpjtaylor @nlighten, thanks for raising this, I have sent PR to fix this issue.

[DevopsMercenary]

any work around in the mean time ?

[mpjtaylor]

Delete it and let it be recreated.

[github-actions]

This functionality has been released in v3.56.0 of the Terraform Provider. Please see the Terraform documentation on provider versioning or reach out if you need any assistance upgrading.

For further feature requests or bug reports with this functionality, please create a new GitHub issue following the template. Thank you!

[github-actions]

I'm going to lock this issue because it has been closed for 30 days ⏳. This helps our maintainers find and focus on the active issues.
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