.node_config[0].gcfs_config: attribute representing nested block must not be unknown itself; set nested attribute values to unknown instead

[ericitaquera]

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Hello.

Even if explicitly "gcfs_config=enabled" in tf configuration, resulting GKE Cluster resource on GCP is created with "Image Streaming = Disabled".

Terraform Version & Provider Version(s)

Terraform v1.9.0 on linux_amd64

• provider registry.terraform.io/hashicorp/google v6.8.0

Affected Resource(s)

"google_container_cluster"

Terraform Configuration

resource "google_container_cluster" "main" {
 ...
  node_config {
    gcfs_config {
      enabled = true
    }
    ...
  }
...
}

Debug Output

No response

Expected Behavior

GKE cluster with Image Streaming enabled

Actual Behavior

Gke cluster with Image Streaming disabled

Steps to reproduce

1. generate a tf with this configuration:

   resource "google_container_cluster" "main" {
   ...
   node_config {
   gcfs_config {
     enabled = true
   }
   ...
   }
   ...
   }

2. terraform plan (check for gcfs_config)
3. terraform apply
4. Validate resource on GCP with Image Streaming disabled
5. terraform plan (to check gcfs is drifted from configuration/actual resource/state)

Important Factoids

No response

References

No response

b/378481057

[ggtisc]

Confirmed issue!

After replicating the steps and using the following configuration as a basic example the value of gcfs_config.enabled in the tfstate file was false instead of true

resource "google_container_cluster" "container_cluster_20123" {
  name = "container-cluster-20123"
  location = "us-central1"
  initial_node_count = 1
  deletion_protection = false

  node_config {
    gcfs_config {
      enabled = true
    }
  }

  node_pool_auto_config {
    network_tags {
      tags = []
    }
  }
}