Azure - Kubernetes Module

Introduction

This module will create a managed Kubernetes cluster using Azure Kubernetes Service.

Providers

Name	Version
azurerm	>= 2.57.0

Inputs

Name	Description	Type	Default	Required
acr_pull_access	map of ACR ids to allow AcrPull	`map(string)`	`{}`	no
cluster_name	Name of AKS cluster.	`string`	n/a	yes
configure_network_role	Add Network Contributor role for identity on input subnets.	`bool`	`true`	no
default_node_pool	Default node pool. Value refers to key within node_pools variable.	`string`	`"default"`	no
dns_prefix	DNS prefix specified when creating the managed cluster.	`string`	n/a	yes
enable_kube_dashboard	enable kubernetes dashboard	`bool`	`false`	no
identity_type	SystemAssigned or UserAssigned.	`string`	`"UserAssigned"`	no
kubernetes_version	kubernetes version	`string`	n/a	yes
location	Azure region.	`string`	n/a	yes
log_analytics_workspace_id	ID of the Azure Log Analytics Workspace	`string`	n/a	yes
names	Names to be applied to resources.	`map(string)`	n/a	yes
network_plugin	network plugin to use for networking (azure or kubenet)	`string`	`"kubenet"`	no
network_profile_options	docker_bridge_cidr, dns_service_ip and service_cidr should all be empty or all should be set	object({ docker_bridge_cidr = string dns_service_ip = string service_cidr = string })	n/a	yes
node_pool_defaults	node pool defaults	object({ vm_size = string availability_zones = list(number) node_count = number enable_auto_scaling = bool min_count = number max_count = number enable_host_encryption = bool enable_node_public_ip = bool max_pods = number node_labels = map(string) only_critical_addons_enabled = bool orchestrator_version = string os_disk_size_gb = number os_disk_type = string type = string tags = map(string) subnet = string # must be key from node_pool_subnets variable # settings below not available in default node pools mode = string node_taints = list(string) max_surge = string eviction_policy = string os_type = string priority = string proximity_placement_group_id = string spot_max_price = number })	{ "availability_zones": [ 1, 2, 3 ], "enable_auto_scaling": false, "enable_host_encryption": false, "enable_node_public_ip": false, "eviction_policy": null, "max_count": null, "max_pods": null, "max_surge": "1", "min_count": null, "mode": "User", "name": null, "node_count": 1, "node_labels": null, "node_taints": null, "only_critical_addons_enabled": false, "orchestrator_version": null, "os_disk_size_gb": null, "os_disk_type": "Managed", "os_type": "Linux", "priority": "Regular", "proximity_placement_group_id": null, "spot_max_price": null, "subnet": null, "tags": null, "type": "VirtualMachineScaleSets", "vm_size": "Standard_B2s" }	no
node_pools	node pools	`any`	{ "default": {} }	no
node_resource_group	The name of the Resource Group where the Kubernetes Nodes should exist.	`string`	n/a	yes
outbound_type	outbound (egress) routing method which should be used for this Kubernetes Cluster	`string`	`"loadBalancer"`	no
pod_cidr	used for pod IP addresses	`string`	n/a	yes
rbac	role based access control settings	object({ enabled = bool ad_integration = bool })	{ "ad_integration": false, "enabled": true }	no
rbac_admin_object_ids	Admin group object ids for use with rbac active directory integration	`map(string)`	`{}`	no
resource_group_name	Resource group name.	`string`	n/a	yes
sku_tier	Sets the cluster's SKU tier. The paid tier has a financially-backed uptime SLA. Read doc here.	`string`	`"Free"`	no
tags	Tags to be applied to resources.	`map(string)`	n/a	yes
user_assigned_identity	User assigned identity for the manged cluster (leave and the module will create one).	object({ id = string principal_id = string client_id = string })	n/a	yes
virtual_network	Virtual network info.	object({ subnets = map(object({ id = string })) route_table_id = string })	n/a	yes
windows_profile	windows profile admin user/pass	object({ admin_username = string admin_password = string })	n/a	yes

Outputs

Name	Description
client_certificate	kubernetes client certificate
client_key	kubernetes client key
cluster_ca_certificate	kubernetes cluster ca certificate
effective_outbound_ips_ids	The outcome (resource IDs) of the specified arguments.
fqdn	kubernetes managed cluster fqdn
host	kubernetes host
id	kubernetes managed cluster id
kube_config	kubernetes config to be used by kubectl and other compatible tools
kube_config_raw	raw kubernetes config to be used by kubectl and other compatible tools
kubelet_identity	kubelet identity information
name	kubernetes managed cluster name
node_resource_group	auto-generated resource group which contains the resources for this managed kubernetes cluster
password	kubernetes password
principal_id	id of the principal used by this managed kubernetes cluster
username	kubernetes username

Example

provider "azurerm" {
  version = ">=2.0.0"
  features {}
  subscription_id = "00000-0000-0000-0000-0000000"
}

# Subscription
module "subscription" {
  source = "[email protected]:Azure-Terraform/terraform-azurerm-subscription-data.git?ref=v1.0.0"
}

# Metadata
module "metadata" {
  source = "[email protected]:Azure-Terraform/terraform-azurerm-metadata.git?ref=v1.0.0"

  subscription_id     = module.subscription.output.subscription_id
  # These values should be taken from https://github.com/openrba/python-azure-naming
  business_unit       = "rba.businessUnit"
  cost_center         = "rba.costCenter"
  environment         = "rba.environment"
  location            = "rba.azureRegion"
  market              = "rba.market"
  product_name        = "rba.productName"
  product_group       = "rba.productGroup"
  project             = "project-url"
  sre_team            = "team-name"
  subscription_type   = "rba.subscriptionType"
  resource_group_type = "rba.resourceGroupType"

  additional_tags = {
    "example" = "an additional tag"
  }
}

# Resource group
module "resource_group" {
  source = "[email protected]:Azure-Terraform/terraform-azurerm-resource-group.git?ref=v1.0.0"

  location = module.metadata.location
  tags     = module.metadata.tags
  name     = module.metadata.names
}

# AKS
## This will create a managed kubernetes cluster
module "aks" {
  source = "[email protected]:Azure-Terraform/terraform-azurerm-kubernetes.git"

  service_principal_id     = var.service_principal_id
  service_principal_secret = var.service_principal_secret
  service_principal_name   = "service-principal-name"

  resource_group_name = module.resource_group.name
  location            = module.resource_group.location

  names = module.metadata.names
  tags  = module.metadata.tags

  kubernetes_version = "1.16.7"

  default_node_pool_name                = "default"
  default_node_pool_vm_size             = "Standard_D2s_v3"
  default_node_pool_enable_auto_scaling = true
  default_node_pool_node_min_count      = 1
  default_node_pool_node_max_count      = 5
  default_node_pool_availability_zones  = [1,2,3]

  enable_kube_dashboard = true
  
}

resource "azurerm_kubernetes_cluster_node_pool" "gpu" {
  name                  = "gpu"
  kubernetes_cluster_id = module.aks.id
  vm_size               = "Standard_NC6s_v3"
  availability_zones    = [1,2,3]

  enable_auto_scaling = true
  node_count          = 1
  min_count           = 1
  max_count           = 5

  tags = module.metadata.tags
}

# Helm
provider "helm" {
  alias = "aks"
  kubernetes {
    host                   = module.aks.host
    client_certificate     = base64decode(module.aks.client_certificate)
    client_key             = base64decode(module.aks.client_key)
    cluster_ca_certificate = base64decode(module.aks.cluster_ca_certificate)
  }
}

module "aad-pod-identity" {
  source = "[email protected]:Azure-Terraform/terraform-azurerm-kubernetes.git/aad-pod-identity"
  
  providers = {
    helm = helm.aks
  }

  resource_group_name    = module.resource_group.name
  service_principal_name = "service-principal-name"

  aad_pod_identity_version = "1.6.0"
}

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terraform-azurerm-kubernetes's Introduction

Azure - Kubernetes Module

Introduction

Providers

Inputs

Outputs

Example

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