Maintenance exclusion is not removed from google_container_cluster

[asodja]

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Terraform Version

Terraform v0.14.6

• provider registry.terraform.io/hashicorp/google v3.58.0
• provider registry.terraform.io/hashicorp/google-beta v3.58.0
• provider registry.terraform.io/hashicorp/time v0.5.0

Affected Resource(s)

• google_container_cluster

Terraform Configuration Files

resource "google_container_cluster" "gcp_gke_cluster" {
  name = "test-cluster"
  project = "your_project"
  location = "us-central1"
  initial_node_count = 1
  release_channel {
    channel = "STABLE"
  }
  maintenance_policy {
    recurring_window {
      start_time = "2019-01-01T00:00:00Z"
      end_time = "2019-01-02T00:00:00Z"
      recurrence = "FREQ=DAILY"
    }
    maintenance_exclusion {
      exclusion_name = "batch job"
      start_time = "2019-01-01T00:00:00Z"
      end_time = "2019-01-02T00:00:00Z"
    }
    maintenance_exclusion {
      exclusion_name = "holiday data load"
      start_time = "2019-05-01T00:00:00Z"
      end_time = "2019-05-02T00:00:00Z"
    }
  }
}

Expected Behavior

When removing some already defined maintenance exclusion it should be removed from cluster configuration. GKE resource should be updated.

Actual Behavior

Maintenance exclusions is NOT removed from cluster configuration. GKE resource is not updated. So we actually ended with 4 exclusions on one of clusters, even though only 3 are allowed

Steps to Reproduce

1. terraform apply given configuration
2. Remove one of exclusions, for example "batch job"
3. terraform apply changed configuration, terraform apply shows diff where it will remove exclusion
4. Check Cluster in GCP console, exclusion is still there
5. terraform apply changed configuration again, terraform apply shows diff again with same change

Workaround

1. Remove exclusion via GCP console by hand

[ghost]

I'm going to lock this issue because it has been closed for 30 days ⏳. This helps our maintainers find and focus on the active issues.

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