Kubernetes Virtual Machines Module

This module create all required resources for deploy a Virtual Machines to host a kubernetes cluster using
RKE (Rancher Kubernetes Engine).

Usage

module "az_vms" {
  source = "git::https://github.com/walmartdigital/k8s-vms-module.git?ref=0.2.2"
  name_suffix                         = "abc123"
  cluster_name                        = "my-cluster"
  environment                         = "staging"
  main_resource_group                 = "my-resource-group"
  vnet_name                           = "my-vnet-name"
  subnet_name                         = "my-subnet-name"
  images_resource_group               = "my-images-resource-group"
  k8s_image_name                      = "k8s-v1.0.0"
  bastion_image_name                  = "bastion-v1.0.0"
  ssh_public_key                      = "abc123"
  worker_count                        = "2"
  worker_network_security_group_id    = "network-security-group-id"
  worker_lb_address_pool_id_private   = "loadbalancer-address-pool-id_private"
  worker_lb_address_pool_id_public    = "loadbalancer-address-pool-id_public"
  worker_vm_size                      = "my-worker-vm-size"
  manager_vm_size                     = "my-manager-vm-size"
  worker_count                        = "my-worker-quantity"
  bastion_disk_size                    = "my-worker-disk-size"
  worker_disk_size                    = "my-worker-disk-size"
}

By default all ssh access to to Bastion is blocked. If its needed allow access trough internet, must be used a white list of allowed ips:

block_bastion_ssh                       = "no"
bastion_ssh_allowed_ips                 = ["10.0.0.1", "AzureCloud"]

Take on consideration that can be used Azure wildcards like AzureCloud (allow access to any azure public cloud).

Arguments

• main_resource_group: A string representing the resource group where all resources will be provisioned, this resource group needs to be previously created (required).
• environment: A string used as environment where the cluster is deployed (required).
• name_suffix: A string used as name suffix (required).
• cluster_name: A string used as the cluster name (required).
• vnet_name: A string representing the resource group virtual network (required).
• subnet_name: A string representing the subnet associated to virtual network (required).
• images_resource_group: A string representing the resource group where to find the custom images (required).
• k8s_image_name: A string used as custom k8s image name (required).
• bastion_image_name: A string used as custom bastion image name (required).
• ssh_public_key: A string used as the public ssh key for connect to bastion (required).
• managert_count: A string used as number of managers (default: 3).
• worker_count: A string used as number of workers (default: 3).
• network_security_group_id: A string used as network security group ID.
• worker_lb_address_pool_id_public: A string used as load balancer public address pool ID.
• worker_lb_address_pool_id_private: A string used as load balancer private address pool ID.
• default_tags: Tags assigned to every resource that support it (type: map).
• worker_vm_size: A string used to assign a custom azure vm size configuration for workers.
• manager_vm_size: A string used to assign a custom azure vm size configuration for managers.
• create_bastion: “no” if you don’t want to create bastion (default: “yes”).
• create_managers: “no” if you don’t want to create managers (default: “yes”).
• bastion_disk_size: A string used to assign a custom azure disk size configuration for bastion (default: 30gb).
• worker_disk_size: A string used to assign a custom azure disk size configuration for workers (default: 30gb).

Outputs

• bastion_public_ip: The bastion public IP address.
• bastion_private_ip: The bastion private IP address.
• worker_ips: The private IPs of the created worker VMs.
• manager_ips: The private IPs of the created manager VMs.

You can use our k8s-lb-module and k8s-nsg-module to configure and use a Load Balancer and Network Security Group 100% compatible with this module