From fcab4a6b95dae2bf0d36def02924764e7d5d4564 Mon Sep 17 00:00:00 2001
From: Gal Szkolnik <code@lksz.me>
Date: Tue, 1 Aug 2023 06:47:20 +0000
Subject: [PATCH] Added hosts as modules

---
 .../_tf/modules/deployed_host/host.input.tf   | 41 +++++++++++++++++++
 .../_tf/modules/deployed_host/host.output.tf  | 10 +++++
 .../_tf/modules/deployed_host/host.plan.tf    | 26 ++++++++++++
 .../_tf/modules/deployed_host/network.plan.tf | 34 +++++++++++++++
 4 files changed, 111 insertions(+)
 create mode 100644 src/ASSIGNMENT-03/_tf/modules/deployed_host/host.input.tf
 create mode 100644 src/ASSIGNMENT-03/_tf/modules/deployed_host/host.output.tf
 create mode 100644 src/ASSIGNMENT-03/_tf/modules/deployed_host/host.plan.tf
 create mode 100644 src/ASSIGNMENT-03/_tf/modules/deployed_host/network.plan.tf

diff --git a/src/ASSIGNMENT-03/_tf/modules/deployed_host/host.input.tf b/src/ASSIGNMENT-03/_tf/modules/deployed_host/host.input.tf
new file mode 100644
index 0000000..39e81f2
--- /dev/null
+++ b/src/ASSIGNMENT-03/_tf/modules/deployed_host/host.input.tf
@@ -0,0 +1,41 @@
+variable "username" {
+    type = string
+    description = "VMs admin username"
+}
+
+variable "ssh_public_key" {
+    type = string
+    description = "SSH public signature's of the admin"
+}
+
+variable "machine_type" {
+    type = string
+    description = "Machine type/size"
+    default = "Standard_B1s" # Defaulting to the 750 free hours tier machine.
+}
+
+variable "host_name" {
+    type = string
+    description = "Name of VM instance"
+}
+
+variable "resource_group_name" {
+    type = string
+    description = "Azure resource group name"
+}
+
+variable "location" {
+    type = string
+    description = "location of resource"
+    default = "eastus"
+}
+
+variable "local_network_cidr" {
+    type = string
+    description = "CIDR Range of the local virtual network"
+}
+
+variable "local_subnet_cidr" {
+    type = string
+    description = "CIDR Range of the local subnet, usually contained within the local_network_cidr"
+}
\ No newline at end of file
diff --git a/src/ASSIGNMENT-03/_tf/modules/deployed_host/host.output.tf b/src/ASSIGNMENT-03/_tf/modules/deployed_host/host.output.tf
new file mode 100644
index 0000000..2ccfd87
--- /dev/null
+++ b/src/ASSIGNMENT-03/_tf/modules/deployed_host/host.output.tf
@@ -0,0 +1,10 @@
+output "resources" {
+  value = {
+    host = azurerm_linux_virtual_machine.deployed_host
+    nic = azurerm_network_interface.host_network_interface
+    net = azurerm_virtual_network.local_network
+    subnet = azurerm_subnet.local_subnet
+    pub_ip = azurerm_public_ip.host_public_ip
+  }
+  sensitive = false
+}
\ No newline at end of file
diff --git a/src/ASSIGNMENT-03/_tf/modules/deployed_host/host.plan.tf b/src/ASSIGNMENT-03/_tf/modules/deployed_host/host.plan.tf
new file mode 100644
index 0000000..0923f7e
--- /dev/null
+++ b/src/ASSIGNMENT-03/_tf/modules/deployed_host/host.plan.tf
@@ -0,0 +1,26 @@
+resource "azurerm_linux_virtual_machine" "deployed_host" {
+  admin_username        = var.username
+  location              = var.location
+  name                  = var.host_name
+  resource_group_name   = var.resource_group_name
+  secure_boot_enabled   = true
+  size                  = var.machine_type
+  vtpm_enabled          = true
+  admin_ssh_key {
+    public_key = var.ssh_public_key
+    username   = var.username
+  }
+  boot_diagnostics {
+  }
+  os_disk {
+    caching              = "ReadWrite"
+    storage_account_type = "Premium_LRS"
+  }
+  source_image_reference {
+    offer     = "0001-com-ubuntu-server-jammy"
+    publisher = "canonical"
+    sku       = "22_04-lts-gen2"
+    version   = "latest"
+  }
+  network_interface_ids = [ azurerm_network_interface.host_network_interface.id ]
+}
diff --git a/src/ASSIGNMENT-03/_tf/modules/deployed_host/network.plan.tf b/src/ASSIGNMENT-03/_tf/modules/deployed_host/network.plan.tf
new file mode 100644
index 0000000..00a8675
--- /dev/null
+++ b/src/ASSIGNMENT-03/_tf/modules/deployed_host/network.plan.tf
@@ -0,0 +1,34 @@
+resource "azurerm_virtual_network" "local_network" {
+  address_space       = [ var.local_network_cidr ]
+  location            = var.location
+  name                = "${var.host_name}-vnet"
+  resource_group_name = var.resource_group_name
+}
+
+resource "azurerm_subnet" "local_subnet" {
+  address_prefixes     = [ var.local_subnet_cidr ]
+  name                 = "default"
+  resource_group_name = var.resource_group_name
+  virtual_network_name = azurerm_virtual_network.local_network.name
+}
+
+resource "azurerm_public_ip" "host_public_ip" {
+  name                = "${var.host_name}-ip"
+  allocation_method   = "Static"
+  domain_name_label   = var.host_name
+  location            = var.location
+  resource_group_name = var.resource_group_name
+  sku                 = "Standard"
+}
+
+resource "azurerm_network_interface" "host_network_interface" {
+  name                = "${var.host_name}-nic"
+  location            = var.location
+  resource_group_name = var.resource_group_name
+  ip_configuration {
+    name                          = "ipconfig1"
+    private_ip_address_allocation = "Dynamic"
+    public_ip_address_id          = azurerm_public_ip.host_public_ip.id
+    subnet_id                     = azurerm_subnet.local_subnet.id
+  }
+}
\ No newline at end of file