Provider crashes updating existing gke cluster by adding maintenance_exclusion

[msgongora]

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Terraform Version

$ terraform-0.13 -v
Terraform v0.13.5
+ provider registry.terraform.io/hashicorp/google v3.51.0

Affected Resource(s)

• google_container_cluster

Terraform Configuration Files

Cluster creation runs succesful

terraform {
  required_providers {
    google = {
      source  = "hashicorp/google"
      version = "3.51.0"
    }
  }
  required_version = ">= 0.13"
}

locals {
  manifest_path      = "${path.module}/manifests"
  project            = "__REDACTED__"
  pods_range         = format("%s-use1-1-pods", local.project)
  services_range     = format("%s-use1-1-services", local.project)
  regional           = true
  name               = "test0002"
  region             = "us-east1"
  zone               = "us-east1-c"
  primary_network    = format("%s-network", local.project)
  primary_subnetwork = format("%s-use1", local.project)
}

resource "google_container_cluster" "primary" {
  name       = local.name
  location   = local.zone
  project    = local.project
  network    = local.primary_network
  subnetwork = local.primary_subnetwork

  initial_node_count = 1
  release_channel {
    channel = "STABLE"
  }

  maintenance_policy {
    daily_maintenance_window {
      start_time = "07:00"
    }
  }
}

Cluster update crashes by adding maintenance_exclusion

terraform {
  required_providers {
    google = {
      source  = "hashicorp/google"
      version = "3.51.0"
    }
  }
  required_version = ">= 0.13"
}

locals {
  manifest_path      = "${path.module}/manifests"
  project            = "__REDACTED__"
  pods_range         = format("%s-use1-1-pods", local.project)
  services_range     = format("%s-use1-1-services", local.project)
  regional           = true
  name               = "test0002"
  region             = "us-east1"
  zone               = "us-east1-c"
  primary_network    = format("%s-network", local.project)
  primary_subnetwork = format("%s-use1", local.project)
}

resource "google_container_cluster" "primary" {
  name       = local.name
  location   = local.zone
  project    = local.project
  network    = local.primary_network
  subnetwork = local.primary_subnetwork

  initial_node_count = 1
  release_channel {
    channel = "STABLE"
  }

  maintenance_policy {

    daily_maintenance_window {
      start_time = "07:00"
    }

    maintenance_exclusion {
      exclusion_name = "Touchdown"
      start_time     = "2021-02-07T05:00:00Z"
      end_time       = "2021-02-10T05:00:00Z"
    }
  }
}

Debug Output

output.log

Panic Output

crash.log

Expected Behavior

Cluster should be updated with a new Maintenance Exclusion: Touchdown

Actual Behavior

The cluster update crashes with err="rpc error: code = Unavailable desc = transport is closing"

Steps to Reproduce

1. terraform apply
2. Edit block maintenance_policy by adding blockmaintenance_exclusion. Cluster was created with maintenance_policy but without exclusions.
3. terraform apply

[edwardmedia]

I can repro this issue

[msgongora]

I have submitted a PR, both providers were tested on my end

[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.

If you feel this issue should be reopened, we encourage creating a new issue linking back to this one for added context. If you feel I made an error 🤖 🙉 , please reach out to my human friends 👉 hashibot-feedback@hashicorp.com. Thanks!