`cloudflare_access_application` should be replaced when `auth_type` is changed.

[F21]

Confirmation

• [X] 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.
• [X] I have searched the issue tracker and my issue isn't already found.
• [X] 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 linux_amd64

• provider registry.terraform.io/cloudflare/cloudflare v4.33.0

Affected resource(s)

• cloudflare_access_application

Terraform configuration files

resource "cloudflare_access_application" "test" {
  account_id           = "REDACTED"
  name                 = "REDACTED"
  type                 = "saas"
  saas_app {
    auth_type        = "oidc"
    redirect_uris    = ["REDACTED"]
    scopes           = ["openid", "groups", "email", "profile"]
    app_launcher_url = "REDACTED"
  }
}

Link to debug output

N/a

Panic output

No response

Expected output

The access application should be deleted and recreated.

Actual output

The request fails:

Error: error updating Access Application for accounts "XXX": error from makeRequest: received internal server error response (HTTP 500), please try again later
│
│   with cloudflare_access_application.test,
│   on test.tf line 9, in resource "cloudflare_access_application" "test":
│    9: resource "cloudflare_access_application" "test" {
│

Steps to reproduce

1. Create SAML version of an access application:

resource "cloudflare_access_application" "test" {
  account_id           = "REDACTED"
  name                 = "test"
  type                 = "saas"
  saas_app {
    consumer_service_url = "test"
    sp_entity_id         = "test"
    name_id_format       = "email"
  }
}

2. Terraform apply
3. Update the resource to oidc:

resource "cloudflare_access_application" "test" {
  account_id           = "REDACTED"
  name                 = "REDACTED"
  type                 = "saas"
  saas_app {
    auth_type        = "oidc"
    redirect_uris    = ["REDACTED"]
    scopes           = ["openid", "groups", "email", "profile"]
    app_launcher_url = "REDACTED"
  }
}

4. Terraform apply.
5. Terraform apply fails.

Additional factoids

When creating an application in the UI, it specifically states that the auth_type cannot be changed and the application will need to be recreated:

Choose an authentication method: Security Assertion Markup Language (SAML) or OpenID Connect (OIDC). Once the application is created, you will not be able to change this setting.

References

No response

[github-actions[bot]]

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[github-actions[bot]]

Thank you for reporting this issue! For maintainers to dig into issues it is required that all issues include the entirety of TF_LOG=DEBUG output to be provided. The only parts that should be redacted are your user credentials in the X-Auth-Key, X-Auth-Email and Authorization HTTP headers. Details such as zone or account identifiers are not considered sensitive but can be redacted if you are very cautious. This log file provides additional context from Terraform, the provider and the Cloudflare API that helps in debugging issues. Without it, maintainers are very limited in what they can do and may hamper diagnosis efforts.

This issue has been marked with triage/needs-information and is unlikely to receive maintainer attention until the log file is provided making this a complete bug report.

[github-actions[bot]]

This functionality has been released in v4.35.0 of the Terraform Cloudflare 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!