[pagerduty_webhook_subscription] No "update in place" when changing the custom_header value

[lucasnery-hotmart]

Hi there,

Terraform Version

v1.9.3

Provider

v3.15.1

Terraform Configuration Files

resource "pagerduty_webhook_subscription" "chat_integration" {
  delivery_method {
    type = "http_delivery_method"
    url  = "https://mywebhook.com/"
    custom_header {
      name  = "chat"
      value = "test1" 
    }
  }
  description = "xxxxx"
  events = [
    "incident.acknowledged",
    "incident.annotated",
    "incident.delegated",
    "incident.escalated",
    "incident.priority_updated",
    "incident.reassigned",
    "incident.reopened",
    "incident.resolved",
    "incident.responder.added",
    "incident.responder.replied",
    "incident.status_update_published",
    "incident.triggered",
    "incident.unacknowledged"
  ]
  active = true
  filter {
    id   = pagerduty_service.service[count.index].id
    type = "service_reference"
  }
  type       = "webhook_subscription"
}

Expected Behavior

When changing the "value" of the custom_header, update in-place was expected, but no change occurs.

Actual Behavior

No changes. Your infrastructure matches the configuration.

Problem

    custom_header {
      name  = "chat"
      value = "test1"
    }

State

      "type": "pagerduty_webhook_subscription",
      "name": "chat_integration",
      "provider": "provider[\"registry.terraform.io/pagerduty/pagerduty\"]",
      "instances": [
        {
          "index_key": 0,
          "schema_version": 0,
          "attributes": {
            "active": true,
            "delivery_method": [
              {
                "custom_header": [
                  {
                    "name": "room",
                    "value": "-- redacted --"
                  }
                ],
                "temporarily_disabled": false,
                "type": "http_delivery_method",
                "url": "https://mywebhook.com/"
              }

[lucasnery-hotmart]

I managed to work around the problem in the following way:

variable "revision" {
  default = 1
}

resource "terraform_data" "replacement" {
  input = var.revision
}

resource "pagerduty_webhook_subscription" "chat_integration" {
  delivery_method {
    type = "http_delivery_method"
    url  = "https://mywebhook.com/"
    custom_header {
      name  = "chat"
      value = var.revision
    }
  }
  description = "xxxxx"
  events = [
    "incident.acknowledged",
    "incident.annotated",
    "incident.delegated",
    "incident.escalated",
    "incident.priority_updated",
    "incident.reassigned",
    "incident.reopened",
    "incident.resolved",
    "incident.responder.added",
    "incident.responder.replied",
    "incident.status_update_published",
    "incident.triggered",
    "incident.unacknowledged"
  ]
  active = true
  filter {
    id   = pagerduty_service.service[count.index].id
    type = "service_reference"
  }
  type       = "webhook_subscription"
  lifecycle {
    replace_triggered_by = [terraform_data.replacement]
  }
}

if the value of the variable is changed, replace will occur