Workload Identity config on autopilot cluster error message is not self-explanatory

[tgirier]

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Terraform Version

Terraform v1.0.5
on darwin_arm64

• provider registry.terraform.io/hashicorp/google v3.65.0

Affected Resource(s)

• google_container_cluster

Terraform Configuration Files

# Copy-paste your Terraform configurations here.
#
# For large Terraform configs, please use a service like Dropbox and share a link to the ZIP file.
# For security, you can also encrypt the files using our GPG public key:
#    https://www.hashicorp.com/security
#
# If reproducing the bug involves modifying the config file (e.g., apply a config,
# change a value, apply the config again, see the bug), then please include both:
# * the version of the config before the change, and
# * the version of the config after the change.

resource "google_container_cluster" "cluster" {
  name     = "demo-cluster"
  project  = var.project
  location = var.region

  network    = var.network.self_link
  subnetwork = var.cluster_subnet.self_link

  enable_autopilot = true

  ip_allocation_policy {
    cluster_secondary_range_name  = "cluster-pods-subnet"
    services_secondary_range_name = "cluster-services-subnet"
  }

  master_authorized_networks_config {
    cidr_blocks {
      display_name = "home"
      cidr_block   = var.authorized_cidr
    }
  }

  master_auth {
    username = ""
    password = ""

    client_certificate_config {
      issue_client_certificate = false
    }
  }

  vertical_pod_autoscaling {
    enabled = true
  }

  workload_identity_config {
    identity_namespace = "${var.project}.svc.id.goog"
  } 

}

Debug Output

Panic Output

Expected Behavior

Workload identity is enabled by default when using the autopilot feature.
The error message simply states that workload identity conflicts with autopilot.
Therefore we don't know if the conflict is due to the fact that it is not supported on autopilot clusters or if it is enabled by default.

Actual Behavior

The displayed error message when the configuration is applied is :

│ Error: ConflictsWith
│
│   with module.cluster.google_container_cluster.cluster,
│   on cluster/cluster.tf line 1, in resource "google_container_cluster" "cluster":
│    1: resource "google_container_cluster" "cluster" {
│
│ "workload_identity_config": conflicts with enable_autopilot

Steps to Reproduce

1. terraform apply

Important Factoids

References

• #0000

[megan07]

Hi @tgirier ! Sorry for the confusion here. My understanding is that, because it's enabled by default, we don't want to set it in the config (see this comment on shielded nodes). Let me know if this helps or if you disagree with this assessment and I can dig a bit deeper into it.
Thanks!

[megan07]

Hi @tgirier ! Is this still an issue?

[megan07]

Closing assuming this is no longer an issue

[github-actions]

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