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AKS Clusters Terraform Module

This is a Dynamic module in terraform to create GKE cluster. This module will be called from ../env/dev.tf modules file, by using this reusable module we will be able to create AKS cluster and Cluster default node pool.

  • main.tf : contains all the resources which will be created with terraform apply command.
  • variables.tf : contains all the variables required to create the resources.
  • outputs.tf : prints output attributes of the resources.

Azure cloud resources created

  • AKS cluster
  • Default node pool
    • AKS cluster is required to configure the default node pool.

Resource Naming Limitations

  • The AKS cluster default node pool only allows name with 12 characters long, does not allow any special characters.
    • Format of node pool name <environment>nodepool.

Providers

Name Version
azurerm n/a

Modules

No modules.

Resources

Name Type
azurerm_kubernetes_cluster.kubernetes_cluster resource

Inputs

Name Description Type Default Required
dns_service_ip CNI DNS service IP string "10.2.0.10" no
docker_bridge_cidr CNI Docker bridge CIDR string "172.17.0.1/16" no
environment Name of the environment where infrastructure being built. string n/a yes
kubernetes_version Version of the AKS cluster. string n/a yes
location Azure location where all the resources being created. string n/a yes
max_count Maximum Node Count number n\a yes
min_count Minimum Node Count number n\a yes
name Name is the prefix to use for resources that needs to be created. string n/a yes
network_plugin Network plugin type string "azure" no
node_count Number of nodes to deploy number n\a yes
private_subnet The subnet id of the virtual network where the virtual machines will reside. string n/a yes
resource_group_name The name of the resource group in which the resources will be created. string n/a yes
service_cidr CNI service CIDR string "10.2.0.0/24" no
tags A map of the tags to use on the resources that are deployed with this module. map(string) {} no
vm_size Specifies the size of the virtual machine. string "Standard_DS2_v2" no

Outputs

Name Description
azurerm_kubernetes_cluster_fqdn Azure Kubernetes cluster fqdn.
azurerm_kubernetes_cluster_id Azure Kubernetes cluster id
azurerm_kubernetes_cluster_name Azure Kubernetes cluster name.