azurerm_cdn_frontdoor_rule does not allow slash in match_values

[luismy]

Is there an existing issue for this?

• I have searched the existing issues

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Terraform Version

1.5.7

AzureRM Provider Version

3.104.0

Affected Resource(s)/Data Source(s)

azurerm_cdn_frontdoor_rule

Terraform Configuration Files

resource "azurerm_cdn_frontdoor_rule" "index" {
  name                      = "index"
  cdn_frontdoor_rule_set_id = azurerm_cdn_frontdoor_rule_set.index.id
  order                     = 1

  actions {
    url_rewrite_action {
      destination    = "/index.html"
      source_pattern = "/"
    }
  }

  conditions {
    url_path_condition {
      match_values = ["/legacy-login"]
      operator     = "Equal"
    }
  }
  depends_on = [azurerm_cdn_frontdoor_origin.frontend, azurerm_cdn_frontdoor_origin_group.frontend]
}

Debug Output/Panic Output

N/A

Expected Behaviour

It should be supported.

I found #21851, which fixes the issue when using just /. I believe the fix would be to remove this conditional block https://github.com/hashicorp/terraform-provider-azurerm/pull/22610/files#diff-e2d4895b125eec64059034bf8652c9c54638785ec2d6c8555d25b80bb9652350R49

If I edit the rules using the Azure portal it allows the /legacy-login value. Running terraform plan will obviously see the change and try to roll it back, see output after the change done manually

      ~ conditions {
          ~ url_path_condition {
              ~ match_values     = [
                  - "/legacy-login",
                  + "legacy-login",
                ]
                # (3 unchanged attributes hidden)
            }
        }

Actual Behaviour

I get this error

│ Error: "conditions.0.url_path_condition.0.match_values.0" must not begin with the URLs leading slash(e.g. /), got "/legacy-login"
│ 
│   on test.tf line 16, in resource "azurerm_cdn_frontdoor_rule" "index":
│   16:       match_values = ["/legacy-login"]

Steps to Reproduce

terraform validate

Important Factoids

No response

References

• azurerm_cdn_frontdoor_rule does not allow only slash in match_values #21851 fixed the issue when using a single /
• I also believe the following comments raised about the previous fix are related to this new issue whereby the rule isn't just a /:
  • azurerm_cdn_frontdoor_rule does not allow only slash in match_values #21851 (comment)
  • azurerm_cdn_frontdoor_rule does not allow only slash in match_values #21851 (comment)

[github-actions]

This functionality has been released in v3.105.0 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!