Cluster CIDR is can not be set when it was empty in the beginning

[ajfriesen]

Created a cluster initially without CIDR like so:

resource "gridscale_k8s" "k8s" {
  name    = var.cluster_name
  release = var.kubernetes_version
  node_pool {
    name         = "workers"
    node_count   = var.worker_node_count
    cores        = var.worker_node_cores
    memory       = var.worker_node_memory
    storage      = var.worker_node_storage_size
    storage_type = var.worker_node_storage_type
    cluster_cidr = ""
  }

Cluster will be created with the default CIDR of 10.244.0.0/16

Later when I want to define the CIDR block to the same value

resource "gridscale_k8s" "k8s" {
  name    = var.cluster_name
  release = var.kubernetes_version
  node_pool {
    name         = "workers"
    node_count   = var.worker_node_count
    cores        = var.worker_node_cores
    memory       = var.worker_node_memory
    storage      = var.worker_node_storage_size
    storage_type = var.worker_node_storage_type
    cluster_cidr = "10.244.0.0/16"
  }

I will get an error:

│ Error: update k8s (8182cef8-1f28-4b83-b2ff-c52b60ce8258) resource - error: Status code: 400. Error: {'type': 'HTTPError', 'status_code': 400, 'message': "(400, 'Parameter k8s_cluster_cidr is immutable')"}. Request UUID: 187fda47-f91b-455e-b619-8f94a49b0c1a.