Terraform templates

main.tf

terraform {
  required_providers {
    aws = {
      source  = "hashicorp/aws"
      version = "~> 3.27"
    }
  }
}

# USE Environment variables AWS_ACCESS_KEY and AWS_SECRET_ACCESS_KEY
# export AWS_ACCESS_KEY = "********"
# export AWS_SECRET_ACCESS_KEY = "*********"
provider "aws" {
  region     = var.winc_region
}

resource "aws_instance" "win_server_1" {
  ami                       = data.aws_ami.windows-2019.id
  instance_type             = var.winc_instance_type
  ebs_optimized             = false
  subnet_id                 = data.aws_instance.winc-machine-node.subnet_id
  security_groups           = data.aws_instance.winc-machine-node.vpc_security_group_ids
  iam_instance_profile      = data.aws_instance.winc-machine-node.iam_instance_profile
  user_data                 = data.template_file.windows-userdata.rendered
  tags = {
    Name = "${var.winc_instance_name}1"
  }
}

resource "aws_instance" "win_server_2" {
  ami                       = data.aws_ami.windows-2019.id
  instance_type             = var.winc_instance_type
  ebs_optimized             = false
  subnet_id                 = data.aws_instance.winc-machine-node.subnet_id
  security_groups           = data.aws_instance.winc-machine-node.vpc_security_group_ids
  iam_instance_profile      = data.aws_instance.winc-machine-node.iam_instance_profile
  user_data                 = data.template_file.windows-userdata.rendered
  tags = {
    Name = "${var.winc_instance_name}2"
  }
}

 #resource "aws_instance" "win_server_2022" {
 #  ami                       = data.aws_ami.windows-2022.id
 #  instance_type             = var.winc_instance_type
 #  ebs_optimized             = false
 #  subnet_id                 = data.aws_instance.winc-machine-node.subnet_id
 #  security_groups           = data.aws_instance.winc-machine-node.vpc_security_group_ids
 #  iam_instance_profile      = data.aws_instance.winc-machine-node.iam_instance_profile
 #  user_data                 = data.template_file.windows-userdata.rendered
 #  tags = {
 #    Name = "${var.winc_instance_name}22"
 #  }
 #}

# Get latest Windows Server 2019 AMI
data "aws_ami" "windows-2019" {
  most_recent = true
  owners      = ["amazon"]
  filter {
    name   = "name"
    values = ["Windows_Server-2019-English-Full-ContainersLatest*"]
  }
}

# Get latest Windows Server 2022 AMI
data "aws_ami" "windows-2022" {
  most_recent = true
  owners      = ["amazon"]
  filter {
    name   = "name"
    values = ["Windows_Server-2022-English-Full-ContainersLatest*"]
  }
}

data "aws_instance" "winc-machine-node" {
    filter {
      name    = "private-dns-name"
      values  = [var.winc_machine_hostname]
    }
}

output "instance_ip_1" {
  value = aws_instance.win_server_1.private_ip
}

output "instance_ip_2" {
  value = aws_instance.win_server_2.private_ip
}

# output "instance_ip_22" {
#   value = aws_instance.win_server_2022.private_ip
# }

terraform.tfvars

winc_instance_name              = "byoh-windows-worker"
winc_machine_hostname           = "ip-10-0-131-228.us-east-2.compute.internal"
winc_instance_type              = "m5a.large"
winc_region                     = "us-east-2"

variables.tf

# Instance name for the newly created Windows VM
variable winc_instance_name {
    type = string
}
# Hostname for one of the already existing cluster VM nodes
# You can get this info with: oc get nodes -l node-role.kubernetes.io/worker --no-headers
variable winc_machine_hostname {
    type = string
}
# New instance type
variable winc_instance_type {
    type = string
}
# AWS Region
variable winc_region {
    type = string
}

windows-vm-bootstrap.tf

# Bootstrapping PowerShell Script
data "template_file" "windows-userdata" {
  template = <<EOF
<powershell>
# Rename Machine
#Rename-Computer -NewName "${var.winc_instance_name}" -Force;# Install IIS
$authorizedKeyConf = "$env:ProgramData\ssh\administrators_authorized_keys"
$authorizedKeyFolder = Split-Path -Path $authorizedKeyConf
if (!(Test-Path $authorizedKeyFolder))
{
  New-Item -path $authorizedKeyFolder  -ItemType Directory
}
Write-Output "ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQCWkwurd8TNAi+D7ffvyDdhGBSQtJx3/Yedlwvvha0q772vLlOAGlKCw4dajKy6qty1/GGQDgTJ17h3C9TEArI8ZqILnyydeY56DL+ELN3dtGBVof/N2qtW0+SmEnd1Mi7Qy5Tx4e/GVmB3NgX9szwNOVXhebzgBsXc9x+RtCVLPLC8J+qqSdTUZ0UfJsh2ptlQLGHmmTpF//QlJ1tngvAFeCOxJUhrLAa37P9MtFsiNk31EfKyBk3eIdZljTERmqFaoJCohsFFEdO7tVgU6p5NwniAyBGZVjZBzjELoI1aZ+/g9yReIScxl1R6PWqEzcU6lGo2hInnb6nuZFGb+90D [email protected]" | Out-File -FilePath $authorizedKeyConf -Encoding ascii
Add-WindowsCapability -Online -Name OpenSSH.Server~~~~0.0.1.0
# SSH service startup type
Set-Service -Name ssh-agent -StartupType 'Automatic'
Set-Service -Name sshd -StartupType 'Automatic'
# start service
Start-Service ssh-agent
Start-Service sshd
# configure key based-authentication
$sshdConfigFilePath = "$env:ProgramData\ssh\sshd_config"
$pubKeyConf = (Get-Content -path $sshdConfigFilePath) -replace '#PubkeyAuthentication yes','PubkeyAuthentication yes'
$pubKeyConf | Set-Content -Path $sshdConfigFilePath
$passwordConf = (Get-Content -path $sshdConfigFilePath) -replace '#PasswordAuthentication yes','PasswordAuthentication yes'
$passwordConf | Set-Content -Path $sshdConfigFilePath
# create key file in configuration

$acl = Get-Acl $authorizedKeyConf
# disable inheritance
$acl.SetAccessRuleProtection($true, $false)
# set full control for Administrators
$administratorsRule = New-Object system.security.accesscontrol.filesystemaccessrule("Administrators","FullControl","Allow")
$acl.SetAccessRule($administratorsRule)
# set full control for SYSTEM
$systemRule = New-Object system.security.accesscontrol.filesystemaccessrule("SYSTEM","FullControl","Allow")
$acl.SetAccessRule($systemRule)
# apply file acl
$acl | Set-Acl
# restart service
Restart-Service sshd
# success
# Firewall Rules
New-NetFirewallRule -DisplayName "ContainerLogsPort" -LocalPort 10250 -Enabled True -Direction Inbound -Protocol TCP -Action Allow -EdgeTraversalPolicy Allow
# Install Docker
Install-PackageProvider -Name NuGet -MinimumVersion 2.8.5.201 -Force
# configure repository policy
Set-PSRepository PSGallery -InstallationPolicy Trusted
# install module with provider
Install-Module -Name DockerMsftProvider -Repository PSGallery -Force
# install docker package
Install-Package -Name docker -ProviderName DockerMsftProvider -Force

# Restart
shutdown -r -t 10;
</powershell>
EOF
}