Cannot update cloudflare_email_routing_rule: required rule id missing

[iwahbe]

Confirmation

• This is a bug with an existing resource and is not a feature request or enhancement. Feature requests should be submitted with Cloudflare Support or your account team.
• I have searched the issue tracker and my issue isn't already found.
• I have replicated my issue using the latest version of the provider and it is still present.

Terraform and Cloudflare provider version

Terraform v1.8.3
on darwin_arm64

provider registry.terraform.io/cloudflare/cloudflare v4.35.0

Affected resource(s)

• cloudflare_email_routing_rule

Terraform configuration files

terraform {
  required_providers {
    cloudflare = {
      source  = "cloudflare/cloudflare"
      version = "4.35.0"
    }
  }

  required_version = ">= 1.2.0"
}

provider "cloudflare" {}

resource "cloudflare_zone" "repro_zone" {
  account_id = "48364b099cc965f71761d67bc5314bd4"
  zone       = "pulumi.com"
}

resource "cloudflare_email_routing_rule" "CfEmailRedirects" {
  zone_id = cloudflare_zone.repro_zone.id
  name    = "CfEmailRedirects"
  enabled = true

  matcher {
    type  = "literal"
    field = "to"
    value = "[email protected]"
  }

  action {
    type  = "forward"
    value = ["[email protected]"] # Twiddle 1 -> 2 to reproduce
  }

  priority = 0
}

Link to debug output

https://gist.github.com/iwahbe/6c572def584838b5fb3cc9e66d936b4b

Panic output

No response

Expected output

I expect that I can change the value of cloudflare_email_routing_rule.action.value.0 and the provider will update or replace my forwarding rule.

Actual output

terraform apply
cloudflare_zone.repro_zone: Refreshing state... [id=9d73e1680af07766fa34f6396847b02c]
cloudflare_email_routing_rule.CfEmailRedirects: Refreshing state... [id=aaccc739a4234994ac47ff0919e5d91c]

Terraform used the selected providers to generate the following execution
plan. Resource actions are indicated with the following symbols:
  ~ update in-place

Terraform will perform the following actions:

  # cloudflare_email_routing_rule.CfEmailRedirects will be updated in-place
  ~ resource "cloudflare_email_routing_rule" "CfEmailRedirects" {
      ~ id       = "aaccc739a4234994ac47ff0919e5d91c" -> (known after apply)
        name     = "CfEmailRedirects"
      ~ tag      = "aaccc739a4234994ac47ff0919e5d91c" -> (known after apply)
        # (3 unchanged attributes hidden)

      - action {
          - type  = "forward" -> null
          - value = [
              - "[email protected]",
            ] -> null
        }
      + action {
          + type  = "forward"
          + value = [
              + "[email protected]",
            ]
        }

        # (1 unchanged block hidden)
    }

Plan: 0 to add, 1 to change, 0 to destroy.

Do you want to perform these actions?
  Terraform will perform the actions described above.
  Only 'yes' will be accepted to approve.

yes
  Enter a value: 
cloudflare_email_routing_rule.CfEmailRedirects: Modifying... [id=aaccc739a4234994ac47ff0919e5d91c]
╷
│ Error: failed updating email routing rule
│ 
│   with cloudflare_email_routing_rule.CfEmailRedirects,
│   on main.tf line 19, in resource "cloudflare_email_routing_rule" "CfEmailRedirects":
│   19: resource "cloudflare_email_routing_rule" "CfEmailRedirects" {
│ 
│ required rule id missing
╵
Error: exit status 1
An error occurred: exit status 1

Steps to reproduce

1. Run terraform apply on the original program, typing "yes" when prompted, creating the resource.
2. Change cloudflare_email_routing_rule.CfEmailRedirects.action.value.0 from "[email protected]" to "[email protected]".
3. Run terraform apply and type "yes", the resource will fail to update.

Additional factoids

I don't see anything in the documentation for this resource indicating where I should pass a rule ID.

References

No response

[github-actions]

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[jacobbednarz]

this looks to be coming from the underlying Go library suggesting that RuleID is not being correctly - https://github.com/cloudflare/cloudflare-go/blob/f5d3137ca61667ba17be32b54feef5a4e53a023c/email_routing_rules.go#L187

in the provider we use tag as the ID (legacy reasons that we can migrate away from now) however, in the debug log, i see it does not have a value.

2024-06-25T18:07:13.415-0700 [DEBUG] provider.terraform-provider-cloudflare_v4.35.0: marking computed attribute that is null in the config as unknown: tf_mux_provider="*proto6server.Server" tf_attribute_path="AttributeName(\"tag\")" 

can you confirm if that is set in your state? or if you only have id.

[iwahbe]

This is my state file: https://gist.github.com/iwahbe/16c423d8fcd87c0e10d6af6d320da631. It looks like both tag and id are set.

[jacobbednarz]

odd - nothing obvious is jumping out at me so i'll need to have a dig into what is happening here.