resource "azurerm_windows_virtual_machine_scale_set" "windows_vm_scale_set" {
  for_each            = { for vm in var.scale_sets : vm.name => vm }
  name                = each.value.name
  resource_group_name = var.rg_name
  location            = var.location
  tags                = var.tags
  admin_username      = each.value.admin_username
  admin_password      = each.value.admin_password

  computer_name_prefix                              = try(each.value.computer_name_prefix, null)
  edge_zone                                         = try(each.value.edge_zone, null)
  instances                                         = try(each.value.instances, null)
  sku                                               = try(each.value.sku, null)
  custom_data                                       = try(each.value.custom_data, null)
  do_not_run_extensions_on_overprovisioned_machines = try(each.value.do_not_run_extensions_on_overprovisioned_machines, null)
  extensions_time_budget                            = try(each.value.do_not_run_extensions_on_overprovisioned_machines, null)
  priority                                          = try(each.value.priority, null)
  max_bid_price                                     = try(each.value.max_bid_price, null)
  eviction_policy                                   = try(each.value.eviction_policy, null)
  timezone                                          = each.value.timezone
  health_probe_id                                   = try(each.value.health_probe_id, null)
  overprovision                                     = try(each.value.overprovision, true)
  platform_fault_domain_count                       = try(each.value.platform_fault_domain_count, null)
  upgrade_mode                                      = try(each.value.upgrade_mode, null)
  proximity_placement_group_id                      = try(each.value.proximity_placement_group_id, null)
  scale_in_policy                                   = try(each.value.scale_in_policy, null)
  secure_boot_enabled                               = try(each.value.secure_boot_enabled, null)
  user_data                                         = each.value.user_date
  single_placement_group                            = try(each.value.single_placement_group, null)
  source_image_id                                   = try(each.value.use_custom_image, null) == true ? each.value.custom_source_image_id : null
  vtpm_enabled                                      = try(each.value.vtpm_enabled, null)
  zone_balance                                      = try(each.value.zone_balance, null)
  zones                                             = tolist(try(each.value.zones, null))
  enable_automatic_updates                          = each.value.enable_automatic_updates
  extension_operations_enabled                      = each.value.extension_operations_enabled
  host_group_id                                     = each.value.host_group_id
  license_type                                      = each.value.license_type

  #checkov:skip=CKV_AZURE_151:Ensure Encryption at host is enabled
  encryption_at_host_enabled = try(each.value.encryption_at_host_enabled, null)

  #checkov:skip=CKV_AZURE_50:Ensure Virtual Machine extensions are not installed
  provision_vm_agent = try(each.value.provision_vm_agent, null)

  dynamic "spot_restore" {
    for_each = each.value.spot_restore != null ? [each.value.spot_restore] : []
    content {
      enabled = spot_restore.value.enabled
      timeout = spot_restore.value.timeout

    }
  }

  dynamic "scale_in" {
    for_each = each.value.scale_in != null ? [each.value.scale_in] : []
    content {
      rule                   = scale_in.value.rule
      force_deletion_enabled = scale_in.value.force_deletion_enabled
    }
  }

  dynamic "gallery_application" {
    for_each = each.value.gallery_applications != null ? each.value.gallery_applications : []
    content {
      version_id             = gallery_application.value.version_id
      configuration_blob_uri = gallery_application.value.configuration_blob_uri
      order                  = gallery_application.value.order
      tag                    = gallery_application.value.tag
    }
  }

  dynamic "rolling_upgrade_policy" {
    for_each = each.value.rolling_upgrade_policy != null ? [each.value.rolling_upgrade_policy] : []
    content {
      max_batch_instance_percent              = rolling_upgrade_policy.value.max_batch_instance_percent
      max_unhealthy_instance_percent          = rolling_upgrade_policy.value.max_unhealthy_instance_percent
      max_unhealthy_upgraded_instance_percent = rolling_upgrade_policy.value.max_unhealthy_upgraded_instance_percent
      pause_time_between_batches              = rolling_upgrade_policy.value.pause_time_between_batches
    }
  }

  # To be removed in version 4 of the provider
  dynamic "termination_notification" {
    for_each = each.value.termination_notification != null ? [each.value.termination_notification] : []
    content {
      enabled = termination_notification.value.enabled
      timeout = termination_notification.value.timeout
    }
  }

  dynamic "additional_unattend_content" {
    for_each = each.value.additional_unattend_content != null ? each.value.additional_unattend_content : []
    content {
      content = additional_unattend_content.value.content
      setting = additional_unattend_content.value.setting
    }
  }

  dynamic "secret" {
    for_each = each.value.secrets != null ? each.value.secrets : []
    content {
      key_vault_id = secret.value.key_vault_id

      dynamic "certificate" {
        for_each = secret.value.certificates
        content {
          store = certificate.value.store
          url   = certificate.value.url
        }
      }
    }
  }


  os_disk {
    caching                   = try(each.value.os_disk.caching, null)
    storage_account_type      = try(each.value.os_disk.storage_account_type, null)
    disk_size_gb              = try(each.value.os_disk.disk_size_gb, null)
    disk_encryption_set_id    = try(each.value.os_disk.disk_encryption_set_id, null)
    write_accelerator_enabled = try(each.value.os_disk.write_accelerator_enabled, false)

    dynamic "diff_disk_settings" {
      for_each = each.value.os_disk.diff_disk_settings != null ? [each.value.os_disk.diff_disk_settings] : []
      content {
        option    = diff_disk_settings.value.option
        placement = diff_disk_settings.value.placement
      }
    }
  }

  dynamic "data_disk" {
    for_each = each.value.data_disk != null ? toset(each.value.data_disk) : []
    content {
      lun                       = data_disk.value.lun
      caching                   = data_disk.value.caching
      storage_account_type      = data_disk.value.storage_account_type
      disk_size_gb              = data_disk.value.disk_size_gb
      write_accelerator_enabled = data_disk.value.write_accelerator_enabled
      disk_encryption_set_id    = data_disk.value.disk_encryption_set_id
    }
  }

  dynamic "extension" {
    for_each = each.value.extension != null ? toset(each.value.extension) : []
    content {
      name                       = extension.value.name
      publisher                  = extension.value.publisher
      type                       = extension.value.type
      type_handler_version       = extension.value.type_handler_version
      auto_upgrade_minor_version = extension.value.auto_upgrade_minor_version
      automatic_upgrade_enabled  = extension.value.automatic_upgrade_enabled
      force_update_tag           = extension.value.force_update_tag
      provision_after_extensions = tolist(extension.value.provision_after_extensions)
      settings                   = extension.value.settings
      protected_settings         = extension.value.protected_settings

      dynamic "protected_settings_from_key_vault" {
        for_each = extension.value.protected_settings_from_key_vault != null ? [
          extension.valueprotected_settings_from_key_vault
        ] : []
        content {

          secret_url      = protected_settings_from_key_vault.value.secret_url
          source_vault_id = protected_settings_from_key_vault.value.source_vault_id
        }
      }
    }
  }

  dynamic "boot_diagnostics" {
    for_each = each.value.boot_diagnostics_storage_account_uri != null ? [
      each.value.boot_diagnostics_storage_account_uri
    ] : [null]
    content {
      storage_account_uri = boot_diagnostics.value
    }
  }

  dynamic "additional_capabilities" {
    for_each = each.value.additional_capabilities != null && each.value.additional_capabilities != {} ? [
      each.value.additional_capabilities
    ] : []
    content {
      ultra_ssd_enabled = additional_capabilities.value.ultra_ssd_enabled
    }
  }

  dynamic "automatic_os_upgrade_policy" {
    for_each = each.value.automatic_os_upgrade_policy != null && each.value.automatic_os_upgrade_policy != {} ? [
      each.value.automatic_os_upgrade_policy
    ] : []
    content {
      disable_automatic_rollback  = automatic_os_upgrade_policy.value.disable_automatic_rollback
      enable_automatic_os_upgrade = automatic_os_upgrade_policy.value.enable_automatic_os_upgrade
    }
  }

  dynamic "automatic_instance_repair" {
    for_each = each.value.automatic_instance_repair != null && each.value.automatic_instance_repair != {} ? [
      each.value.automatic_instance_repair
    ] : []
    content {
      enabled      = automatic_instance_repair.value.enabled
      grace_period = automatic_instance_repair.value.grace_period
    }
  }


  dynamic "network_interface" {
    for_each = each.value.network_interface != null && each.value.network_interface != {} ? toset(each.value.network_interface) : []
    content {
      name                          = network_interface.value.name
      primary                       = network_interface.value.primary
      network_security_group_id     = network_interface.value.network_security_group_id
      enable_accelerated_networking = network_interface.value.enable_accelerated_networking
      enable_ip_forwarding          = network_interface.value.enable_ip_forwarding
      dns_servers                   = tolist(network_interface.value.dns_servers)

      dynamic "ip_configuration" {
        for_each = network_interface.value.ip_configuration != null && network_interface.value.ip_configuration != {} ? toset(network_interface.value.ip_configuration) : []
        content {
          name                                         = ip_configuration.value.name
          primary                                      = ip_configuration.value.primary
          application_gateway_backend_address_pool_ids = ip_configuration.value.application_gateway_backend_address_pool_ids
          application_security_group_ids = each.value.create_asg ? (
            ip_configuration.value.application_security_group_ids != null ?
            distinct(concat(ip_configuration.value.application_security_group_ids, [
              azurerm_application_security_group.asg[each.key].id
            ])) :
            [azurerm_application_security_group.asg[each.key].id]
          ) : []
          load_balancer_backend_address_pool_ids = ip_configuration.value.load_balancer_backend_address_pool_ids
          load_balancer_inbound_nat_rules_ids    = ip_configuration.value.load_balancer_inbound_nat_rules_ids
          version                                = ip_configuration.value.version
          subnet_id                              = ip_configuration.value.subnet_id

          dynamic "public_ip_address" {
            for_each = ip_configuration.value.public_ip_address != null && ip_configuration.value.public_ip_address != {} ? [
              ip_configuration.value.public_ip_address
            ] : []
            content {
              name                    = public_ip_address.value.name
              domain_name_label       = public_ip_address.value.domain_name_label
              idle_timeout_in_minutes = public_ip_address.value.idle_timeout_in_minutes
              public_ip_prefix_id     = public_ip_address.value.public_ip_prefix_id

              dynamic "ip_tag" {
                for_each = public_ip_address.value.ip_tag != null && public_ip_address.value.ip_tag != {} ? [
                  public_ip_address.value.ip_tag
                ] : []
                content {
                  type = ip_tag.value.type
                  tag  = ip_tag.value.tag
                }
              }
            }
          }
        }
      }
    }
  }

  dynamic "source_image_reference" {
    for_each = try(each.value.use_simple_image, null) == true && try(each.value.use_simple_image_with_plan, null) == false && try(each.value.use_custom_image, null) == false ? [
      1
    ] : []
    content {
      publisher = coalesce(each.value.vm_os_publisher, module.os_calculator[each.value.name].calculated_value_os_publisher)
      offer     = coalesce(each.value.vm_os_offer, module.os_calculator[each.value.name].calculated_value_os_offer)
      sku       = coalesce(each.value.vm_os_sku, module.os_calculator[each.value.name].calculated_value_os_sku)
      version   = coalesce(each.value.vm_os_version, "latest")
    }
  }


  # Use custom image reference
  dynamic "source_image_reference" {
    for_each = try(each.value.use_simple_image, null) == false && try(each.value.use_simple_image_with_plan, null) == false && try(length(each.value.source_image_reference), 0) > 0 && try(length(each.value.plan), 0) == 0 && try(each.value.use_custom_image, null) == false ? [
      1
    ] : []

    content {
      publisher = lookup(each.value.source_image_reference, "publisher", null)
      offer     = lookup(each.value.source_image_reference, "offer", null)
      sku       = lookup(each.value.source_image_reference, "sku", null)
      version   = lookup(each.value.source_image_reference, "version", null)
    }
  }

  dynamic "source_image_reference" {
    for_each = try(each.value.use_simple_image, null) == true && try(each.value.use_simple_image_with_plan, null) == true && try(each.value.use_custom_image, null) == false ? [
      1
    ] : []

    content {
      publisher = coalesce(each.value.vm_os_publisher, module.os_calculator_with_plan[each.value.name].calculated_value_os_publisher)
      offer     = coalesce(each.value.vm_os_offer, module.os_calculator_with_plan[each.value.name].calculated_value_os_offer)
      sku       = coalesce(each.value.vm_os_sku, module.os_calculator_with_plan[each.value.name].calculated_value_os_sku)
      version   = coalesce(each.value.vm_os_version, "latest")
    }
  }


  dynamic "plan" {
    for_each = try(each.value.use_simple_image, null) == false && try(each.value.use_simple_image_with_plan, null) == false && try(length(each.value.plan), 0) > 0 && try(each.value.use_custom_image, null) == false ? [
      1
    ] : []

    content {
      name      = coalesce(each.value.vm_os_sku, module.os_calculator_with_plan[each.value.name].calculated_value_os_sku)
      product   = coalesce(each.value.vm_os_offer, module.os_calculator_with_plan[each.value.name].calculated_value_os_offer)
      publisher = coalesce(each.value.vm_os_publisher, module.os_calculator_with_plan[each.value.name].calculated_value_os_publisher)
    }
  }


  dynamic "plan" {
    for_each = try(each.value.use_simple_image, null) == false && try(each.value.use_simple_image_with_plan, null) == false && try(length(each.value.plan), 0) > 0 && try(each.value.use_custom_image, null) == false ? [
      1
    ] : []

    content {
      name      = lookup(each.value.plan, "name", null)
      product   = lookup(each.value.plan, "product", null)
      publisher = lookup(each.value.plan, "publisher", null)
    }
  }

  dynamic "identity" {
    for_each = each.value.identity_type == "SystemAssigned" ? [each.value.identity_type] : []
    content {
      type = each.value.identity_type
    }
  }

  dynamic "identity" {
    for_each = each.value.identity_type == "SystemAssigned, UserAssigned" ? [each.value.identity_type] : []
    content {
      type         = each.value.identity_type
      identity_ids = try(each.value.identity_ids, [])
    }
  }

  dynamic "identity" {
    for_each = each.value.identity_type == "UserAssigned" ? [each.value.identity_type] : []
    content {
      type         = each.value.identity_type
      identity_ids = length(try(each.value.identity_ids, [])) > 0 ? each.value.identity_ids : []
    }
  }

  dynamic "winrm_listener" {
    for_each = each.value.winrm_listener != null ? each.value.winrm_listener : []
    content {
      protocol        = winrm_listener.value.protocol
      certificate_url = winrm_listener.value.certificate_url
    }
  }
}

module "os_calculator" {
  source       = "libre-devops/windows-os-sku-calculator/azurerm"
  for_each     = { for vm in var.scale_sets : vm.name => vm if try(vm.use_simple_image, null) == true }
  vm_os_simple = each.value.vm_os_simple
}

module "os_calculator_with_plan" {
  source       = "libre-devops/windows-os-sku-with-plan-calculator/azurerm"
  for_each     = { for vm in var.scale_sets : vm.name => vm if try(vm.use_simple_image_with_plan, null) == true }
  vm_os_simple = each.value.vm_os_simple
}

resource "azurerm_marketplace_agreement" "plan_acceptance_simple" {
  for_each = {
    for vm in var.scale_sets : vm.name => vm
    if try(vm.use_simple_image_with_plan, null) == true && try(vm.accept_plan, null) == true && try(vm.use_custom_image, null) == false
  }

  publisher = coalesce(each.value.vm_os_publisher, module.os_calculator_with_plan[each.key].calculated_value_os_publisher)
  offer     = coalesce(each.value.vm_os_offer, module.os_calculator_with_plan[each.key].calculated_value_os_offer)
  plan      = coalesce(each.value.vm_os_sku, module.os_calculator_with_plan[each.key].calculated_value_os_sku)
}

resource "azurerm_marketplace_agreement" "plan_acceptance_custom" {
  for_each = {
    for vm in var.scale_sets : vm.name => vm
    if try(vm.use_custom_image_with_plan, null) == true && try(vm.accept_plan, null) == true && try(vm.use_custom_image, null) == true
  }

  publisher = lookup(each.value.plan, "publisher", null)
  offer     = lookup(each.value.plan, "product", null)
  plan      = lookup(each.value.plan, "name", null)
}

resource "azurerm_application_security_group" "asg" {
  for_each = { for vm in var.scale_sets : vm.name => vm if vm.create_asg == true }

  name                = each.value.asg_name != null ? each.value.asg_name : "asg-${each.value.name}"
  location            = var.location
  resource_group_name = var.rg_name
  tags                = var.tags
}

Requirements

No requirements.

Providers

Name	Version
azurerm	n/a

Modules

Name	Source	Version
os_calculator	libre-devops/windows-os-sku-calculator/azurerm	n/a
os_calculator_with_plan	libre-devops/windows-os-sku-with-plan-calculator/azurerm	n/a

Resources

Name	Type
azurerm_application_security_group.asg	resource
azurerm_marketplace_agreement.plan_acceptance_custom	resource
azurerm_marketplace_agreement.plan_acceptance_simple	resource
azurerm_windows_virtual_machine_scale_set.windows_vm_scale_set	resource

Inputs

Name	Description	Type	Default	Required
location	The region to place the resources	string	n/a	yes
rg_name	The resource group name to place the scale sets in	string	n/a	yes
scale_sets	The scale sets list of object variable	list(object({ name = string computer_name_prefix = optional(string) admin_username = string admin_password = string edge_zone = optional(string) instances = optional(number) sku = optional(string) custom_data = optional(string) disable_password_authentication = optional(bool) user_date = optional(string) do_not_run_extensions_on_overprovisioned_machines = optional(bool) extensions_time_budget = optional(string) priority = optional(string) max_bid_price = optional(number) identity_type = optional(string) identity_ids = optional(list(string)) eviction_policy = optional(string) health_probe_id = optional(string) timezone = optional(string) overprovision = optional(bool) create_asg = optional(bool, false) asg_name = optional(string) enable_automatic_updates = optional(bool) extension_operations_enabled = optional(bool) platform_fault_domain_count = optional(number) upgrade_mode = optional(string) proximity_placement_group_id = optional(string) scale_in_policy = optional(string) secure_boot_enabled = optional(bool) use_custom_image = optional(bool, false) host_group_id = optional(string) license_type = optional(string) use_custom_image_with_plan = optional(bool, false) use_simple_image = optional(bool, true) use_simple_image_with_plan = optional(bool, false) vm_os_id = optional(string, "") vm_os_offer = optional(string) vm_os_publisher = optional(string) vm_os_simple = optional(string) vm_os_sku = optional(string) vm_os_version = optional(string) spot_restore = optional(object({ enabled = optional(bool) timeout = optional(number) })) scale_in = optional(object({ rule = optional(string) force_deletion_enabled = optional(string) })) gallery_applications = optional(list(object({ version_id = string configuration_blob_uri = optional(string) order = optional(number) tag = optional(string) }))) plan = optional(object({ name = optional(string) product = optional(string) publisher = optional(string) })) source_image_reference = optional(object({ publisher = optional(string) offer = optional(string) sku = optional(string) version = optional(string) })) single_placement_group = optional(bool) custom_source_image_id = optional(string) vtpm_enabled = optional(bool) zone_balance = optional(bool) zones = optional(list(string)) encryption_at_host_enabled = optional(bool) provision_vm_agent = optional(bool) additional_unattend_content = optional(list(object({ content = string setting = string }))) winrm_listener = optional(list(object({ protocol = string certificate_url = optional(string) }))) rolling_upgrade_policy = optional(object({ max_batch_instance_percent = optional(number) max_unhealthy_instance_percent = optional(number) max_unhealthy_upgraded_instance_percent = optional(number) pause_time_between_batches = optional(string) })) termination_notification = optional(object({ enabled = optional(bool) timeout = optional(string) })) secrets = optional(list(object({ key_vault_id = string certificates = list(object({ store = string url = string })) }))) os_disk = object({ caching = optional(string, "ReadWrite") storage_account_type = optional(string) disk_size_gb = optional(number) disk_encryption_set_id = optional(string) secure_vm_disk_encryption_set_id = optional(string) security_encryption_type = optional(string) write_accelerator_enabled = optional(bool) diff_disk_settings = optional(object({ option = string placement = optional(string) })) }) data_disk = optional(list(object({ lun = number caching = optional(string) storage_account_type = optional(string) disk_size_gb = optional(number) write_accelerator_enabled = optional(bool) disk_encryption_set_id = optional(string) }))) extension = optional(list(object({ name = string publisher = string type = string type_handler_version = string auto_upgrade_minor_version = optional(bool) automatic_upgrade_enabled = optional(bool) force_update_tag = optional(string) provision_after_extensions = optional(list(string)) settings = optional(string) protected_settings = optional(string) protected_settings_from_key_vault = optional(object({ secret_url = optional(string) source_vault_id = optional(string) })) }))) boot_diagnostics_storage_account_uri = optional(string, null) additional_capabilities = optional(object({ ultra_ssd_enabled = optional(bool) })) automatic_os_upgrade_policy = optional(object({ disable_automatic_rollback = optional(bool) enable_automatic_os_upgrade = optional(bool) })) automatic_instance_repair = optional(object({ enabled = optional(bool) grace_period = optional(string) })) network_interface = optional(list(object({ name = optional(string) primary = optional(bool) network_security_group_id = optional(string) enable_accelerated_networking = optional(bool) enable_ip_forwarding = optional(bool) dns_servers = optional(list(string)) ip_configuration = optional(list(object({ name = optional(string) primary = optional(bool) application_gateway_backend_address_pool_ids = optional(list(string)) application_security_group_ids = optional(list(string)) load_balancer_backend_address_pool_ids = optional(list(string)) load_balancer_inbound_nat_rules_ids = optional(list(string)) version = optional(string) subnet_id = optional(string) public_ip_address = optional(object({ name = optional(string) domain_name_label = optional(string) idle_timeout_in_minutes = optional(number) public_ip_prefix_id = optional(string) ip_tag = optional(list(object({ type = optional(string) tag = optional(string) }))) })) }))) }))) }))	n/a	yes
tags	Tags to be applied to the resource	map(string)	n/a	yes

Outputs

Name	Description
ss_id	The name of the scale set
ss_identity	The identity block of the scale set
ss_name	The name of the scale set
unique_ss_id	The id of the scale set