error in iteration

[Nello-Angelo]

Terraform Version

1.8.3

Terraform Configuration Files

variable "cloudru_k8s_cluster" {
  type = map(object({
    control_plane_type                         = string
    control_plane_multizonal                   = bool
    control_plane_count                        = number
    control_plane_version                      = string
    control_plane_zones                        = list(string)
    network_configuration_services_subnet_cidr = string
    network_configuration_nodes_subnet_cidr    = string
    network_configuration_pods_subnet_cidr     = string
    network_configuration_kube_api_internet    = bool
    timeouts_create                            = string
    timeouts_read                              = string
    timeouts_update                            = string
    timeouts_delete                            = string
    nodepool = map(object({
      scale_policy_fixed_scale_count                = number
      nodes_network_configuration_nodes_subnet_cidr = string
      hardware_compute_disk_size                    = number
      hardware_compute_disk_type                    = string
      hardware_compute_flavor_id                    = string
      timeouts_create                               = string
      timeouts_read                                 = string
      timeouts_update                               = string
      timeouts_delete                               = string
    }))
  }))

  default = {
    "cluster-1" = {
      control_plane_type                         = "MASTER_TYPE_SMALL"
      control_plane_multizonal                   = false
      control_plane_count                        = 3
      control_plane_version                      = "v1.26.7"
      control_plane_zones                        = ["hbghefbvkhsdbfvkshdbfkv"]
      network_configuration_services_subnet_cidr = "10.0.0.0/24"
      network_configuration_nodes_subnet_cidr    = "10.0.1.0/24"
      network_configuration_pods_subnet_cidr     = "10.0.2.0/24"
      network_configuration_kube_api_internet    = true
      timeouts_create                            = "60m"
      timeouts_read                              = "15s"
      timeouts_update                            = "30m"
      timeouts_delete                            = "5m"
      nodepool = {
        "nodepool-1" = {
          nodes_network_configuration_nodes_subnet_cidr = "10.0.1.0/28"
          hardware_compute_disk_size                    = 10
          hardware_compute_disk_type                    = "SSD"
          hardware_compute_flavor_id                    = "small"
          scale_policy_fixed_scale_count                = 3
          timeouts_create                               = "60m"
          timeouts_read                                 = "15s"
          timeouts_update                               = "30m"
          timeouts_delete                               = "5m"
        }
      }
    }
  }
}

locals {
  cluster_config = {
    for key, value in var.cloudru_k8s_cluster : key => {
      control_plane_type                         = value.control_plane_type
      network_configuration_services_subnet_cidr = value.network_configuration_services_subnet_cidr
      network_configuration_nodes_subnet_cidr    = value.network_configuration_nodes_subnet_cidr
      network_configuration_pods_subnet_cidr     = value.network_configuration_pods_subnet_cidr
      control_plane_zones                        = value.control_plane_zones

      nodepool = {
        for np_key, np_value in value.nodepool : np_key => {
          nodes_network_configuration_nodes_subnet_cidr = np_value.nodes_network_configuration_nodes_subnet_cidr
          hardware_compute_flavor_id                    = np_value.hardware_compute_flavor_id
          scale_policy_fixed_scale_count                = np_value.scale_policy_fixed_scale_count
          timeouts_create                               = np_value.timeouts_create
          timeouts_read                                 = np_value.timeouts_read
          timeouts_update                               = np_value.timeouts_update
          timeouts_delete                               = np_value.timeouts_delete
        }
      }
    }
  }
}

resource "cloudru_k8s_cluster" "cluster" {
  for_each = { for key, value in var.cloudru_k8s_cluster : key => value }
  name     = each.key

  control_plane = {
    zones      = each.value.control_plane_zones
    multizonal = each.value.control_plane_multizonal
    count      = each.value.control_plane_count
    type       = each.value.control_plane_type
    version    = each.value.control_plane_version
  }

  network_configuration = {
    services_subnet_cidr = each.value.network_configuration_services_subnet_cidr
    nodes_subnet_cidr    = each.value.network_configuration_nodes_subnet_cidr
    pods_subnet_cidr     = each.value.network_configuration_pods_subnet_cidr
    kube_api_internet    = each.value.network_configuration_kube_api_internet
  }

  timeouts = {
    create = each.value.timeouts_create
    read   = each.value.timeouts_read
    update = each.value.timeouts_update
    delete = each.value.timeouts_delete
  }

  provider = cloudru
}

resource "cloudru_k8s_nodepool" "nodepool" {
  for_each   = { for key, value in local.cluster_config.nodepool : key => value }
  cluster_id = cloudru_k8s_cluster.cluster[each.key]
  name       = each.key

  scale_policy = {
    fixed_scale = {
      count = each.value.scale_policy_fixed_scale_count
    }
  }

  hardware_compute = {
    disk_size = each.value.hardware_compute_disk_size
    disk_type = each.value.hardware_compute_disk_type
    flavor_id = each.value.hardware_compute_flavor_id
  }

  nodes_network_configuration = {
    nodes_subnet_cidr = each.value.nodes_network_configuration_nodes_subnet_cidr
  }

  timeouts = {
    create = each.value.timeouts_create
    read   = each.value.timeouts_read
    update = each.value.timeouts_update
    delete = each.value.timeouts_delete
  }

  depends_on = [
    cloudru_k8s_cluster.cluster
  ]

  provider = cloudru
}

Debug Output

module.cloudflare.data.cloudflare_zone.dns_zone: Reading...
module.cloudflare.data.cloudflare_zone.dns_zone: Read complete after 3s [id=79cc175d473dde84c1623741ed637f6e]
module.cloudflare.cloudflare_record.record["gitlab"]: Refreshing state... [id=4c3d4e0c8725ae26617269f5737f2fd0]
module.cloudflare.cloudflare_record.record["minio-api"]: Refreshing state... [id=594acc47142d2ddb25df459300c201c2]
module.cloudflare.cloudflare_record.record["grafana"]: Refreshing state... [id=d14e265c76c41974482bb15a60875164]
module.cloudflare.cloudflare_record.record["keycloak"]: Refreshing state... [id=796fc58d240e9a33279ba7ddd026d4ac]
module.cloudflare.cloudflare_record.record["vmagent"]: Refreshing state... [id=3cc2adda3cc8e011a648c7d4f8c8e4c4]
module.cloudflare.cloudflare_record.record["cloud-infra.ru"]: Refreshing state... [id=29964e651a739bc398ac258b9b4fce3a]
module.cloudflare.cloudflare_record.record["sonarqube"]: Refreshing state... [id=cfd6a36749bd33e1fb202e259821a9af]
module.cloudflare.cloudflare_record.record["vminsert"]: Refreshing state... [id=bd49025aad398abb79dac9d66b6c71ed]
module.cloudflare.cloudflare_record.record["harbor"]: Refreshing state... [id=1da86e659a9ebd6c39ba044b8c097d11]
module.cloudflare.cloudflare_record.record["minio"]: Refreshing state... [id=1bd2e5c3f3dde2ad4597be888d19c37d]
module.cloudflare.cloudflare_record.record["stack"]: Refreshing state... [id=1d84817edda0367cb7fd04b7d4bb9bb1]

Terraform used the selected providers to generate the following execution plan. Resource actions are indicated with
the following symbols:
  + create

Terraform planned the following actions, but then encountered a problem:

  # module.k8s.cloudru_k8s_cluster.cluster["cluster-1"] will be created
  + resource "cloudru_k8s_cluster" "cluster" {
      + control_plane         = {
          + count      = 3
          + multizonal = false
          + type       = "MASTER_TYPE_SMALL"
          + version    = "v1.26.7"
          + zones      = [
              + "hbghefbvkhsdbfvkshdbfkv",
            ]
        }
      + created_at            = (known after apply)
      + created_by            = (known after apply)
      + id                    = (known after apply)
      + logging_service       = (known after apply)
      + monitoring_service    = (known after apply)
      + name                  = "cluster-1"
      + network_configuration = {
          + control_plane_endpoints = (known after apply)
          + kube_api_internet       = true
          + nodes_subnet_cidr       = "10.0.1.0/24"
          + nodes_subnet_id         = (known after apply)
          + pods_subnet_cidr        = "10.0.2.0/24"
          + services_subnet_cidr    = "10.0.0.0/24"
        }
      + nodepools_info        = (known after apply)
      + project_id            = (known after apply)
      + state                 = (known after apply)
      + task_id               = (known after apply)
      + timeouts              = {
          + create = "60m"
          + delete = "5m"
          + read   = "15s"
          + update = "30m"
        }
      + updated_at            = (known after apply)
      + updated_by            = (known after apply)
    }

Plan: 1 to add, 0 to change, 0 to destroy.
╷
│ Error: Unsupported attribute
│ 
│   on ../modules/cloud-ru-k8s-module/main.tf line 141, in resource "cloudru_k8s_nodepool" "nodepool":
│  141:   for_each   = { for key, value in local.cluster_config.nodepool : key => value }
│     ├────────────────
│     │ local.cluster_config is object with 1 attribute "cluster-1"
│ 
│ This object does not have an attribute named "nodepool".

Expected Behavior

variable values are substituted

Actual Behavior

│ Error: Unsupported attribute
│ 
│   on ../modules/cloud-ru-k8s-module/main.tf line 141, in resource "cloudru_k8s_nodepool" "nodepool":
│  141:   for_each   = { for key, value in local.cluster_config.nodepool : key => value }
│     ├────────────────
│     │ local.cluster_config is object with 1 attribute "cluster-1"
│ 
│ This object does not have an attribute named "nodepool".

Steps to Reproduce

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Additional Context

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References

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[apparentlymart]

Hi @Nello-Angelo!

This error message seems to be correct: local.cluster_config is an object with a single attribute named cluster-1, because it's derived from your map in var.cloudru_k8s_cluster which has just that one element by default. Since Terraform is behaving correctly -- this expression is incorrect as reported -- I'm going to close this issue.

I'm not familiar with the provider you are using here so I'm not 100% sure of what you were intending, but it seems like you need to construct a map that has one element for each node pool instead of one element for each cluster, and then use that map as the for_each.

If you have more questions about how to achieve that, please start a topic in the Terraform community forum and we can discuss it more there.