Merge pull request #94 from svc-design/codex/add-azure-terraform-template-with-modules

Add Azure Terraform template aligned with AWS structure

iac-template/terraform-hcl-standard/azure-cloud/README.md

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+# Azure Cloud Terraform Standard
+
+该目录提供与 `aws-cloud` 模板一一对应的 Azure 版本，延续相同的目录与模块命名（bootstrap、config、modules、envs），便于将 AWS 使用习惯映射到 Azure。
+
+## 模板映射（AWS → Azure）
+- **bootstrap-s3 → Storage Account**：创建存储账户与容器用于 Terraform 远端状态。
+- **bootstrap-dynamodb → Cosmos DB Table API**：提供无服务器键值表存储。
+- **bootstrap-iam → RBAC 角色分配**：为指定主体分配内置角色，替代 AWS IAM 角色/策略。
+- **modules**：保留 AWS 模块命名，内部实现替换为 Azure 服务：
+  - `vpc`：虚拟网络 + 子网（Virtual Network/Subnet）。
+  - `alb`：应用程序网关（Application Gateway）。
+  - `nlb`：标准负载均衡器（Standard Load Balancer）。
+  - `ec2`：Linux 虚拟机（Virtual Machine）。
+  - `s3`：存储账户与容器（Storage Account + Container）。
+  - `rds`：PostgreSQL 灵活服务器（Flexible Server）。
+  - `redis`：Azure Cache for Redis。
+  - `sg`：网络安全组与规则（Network Security Group）。
+  - `iam`：基于内置角色的角色分配（Role Assignment）。
+  - `ami_lookup`：公共镜像查找（Ubuntu 平台镜像）。
+  - `landingzone`：基础资源组与日志工作区。
+  - `keypair`：生成 SSH 密钥对。
+  - `msk`：事件中心命名空间与 Hub（Event Hubs）。
+
+## 使用方式
+1. 在 `config/backend.tf` 中配置 Azure 存储作为 Terraform 远端状态（资源组、存储账户、容器）。
+2. 在 `config/provider.tf` 中设置 `subscription_id`、`tenant_id`、`location` 等参数。
+3. 参考 `envs/dev/main.tf`，按需修改变量后执行：
+   ```bash
+   terraform -chdir=envs/dev init
+   terraform -chdir=envs/dev apply
+   ```
+
+本目录新增 Azure 代码，不改动现有 AWS 模板。

iac-template/terraform-hcl-standard/azure-cloud/bootstrap-dynamodb/main.tf

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+variable "resource_group_name" {
+  description = "Resource group for the Cosmos DB account"
+  type        = string
+}
+
+variable "location" {
+  description = "Azure region"
+  type        = string
+  default     = "eastus"
+}
+
+variable "account_name" {
+  description = "Cosmos DB account name"
+  type        = string
+}
+
+variable "table_name" {
+  description = "Table (Table API) name"
+  type        = string
+  default     = "tfstate-lock"
+}
+
+provider "azurerm" {
+  features {}
+}
+
+resource "azurerm_resource_group" "cosmos" {
+  name     = var.resource_group_name
+  location = var.location
+}
+
+resource "azurerm_cosmosdb_account" "table" {
+  name                = var.account_name
+  location            = azurerm_resource_group.cosmos.location
+  resource_group_name = azurerm_resource_group.cosmos.name
+  offer_type          = "Standard"
+  kind                = "GlobalDocumentDB"
+
+  consistency_policy {
+    consistency_level = "Session"
+  }
+
+  capabilities {
+    name = "EnableTable"
+  }
+
+  geo_location {
+    location          = azurerm_resource_group.cosmos.location
+    failover_priority = 0
+  }
+}
+
+resource "azurerm_cosmosdb_table" "state_lock" {
+  name                = var.table_name
+  resource_group_name = azurerm_resource_group.cosmos.name
+  account_name        = azurerm_cosmosdb_account.table.name
+  throughput          = 400
+}
+
+output "account" {
+  value       = azurerm_cosmosdb_account.table.name
+  description = "Cosmos DB account for lock table"
+}
+
+output "table" {
+  value       = azurerm_cosmosdb_table.state_lock.name
+  description = "Table API collection used for state locking"
+}

iac-template/terraform-hcl-standard/azure-cloud/bootstrap-iam/main.tf

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+variable "resource_group_name" {
+  description = "Resource group where role assignment is scoped"
+  type        = string
+}
+
+variable "location" {
+  description = "Azure region"
+  type        = string
+  default     = "eastus"
+}
+
+variable "principal_id" {
+  description = "Object ID of the user/service principal/group to assign"
+  type        = string
+}
+
+variable "role_definition_name" {
+  description = "Built-in role to assign"
+  type        = string
+  default     = "Contributor"
+}
+
+provider "azurerm" {
+  features {}
+}
+
+data "azurerm_role_definition" "selected" {
+  name = var.role_definition_name
+}
+
+resource "azurerm_resource_group" "iam" {
+  name     = var.resource_group_name
+  location = var.location
+}
+
+resource "azurerm_role_assignment" "scope_assignment" {
+  scope              = azurerm_resource_group.iam.id
+  role_definition_id = data.azurerm_role_definition.selected.id
+  principal_id       = var.principal_id
+}
+
+output "role_definition" {
+  value       = data.azurerm_role_definition.selected.name
+  description = "Role assigned to the principal"
+}
+
+output "scope" {
+  value       = azurerm_resource_group.iam.id
+  description = "Scope where the role assignment is created"
+}

iac-template/terraform-hcl-standard/azure-cloud/bootstrap-s3/main.tf

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+variable "resource_group_name" {
+  description = "Resource group for state storage"
+  type        = string
+  default     = "tfstate-rg"
+}
+
+variable "location" {
+  description = "Azure region"
+  type        = string
+  default     = "eastus"
+}
+
+variable "storage_account_name" {
+  description = "Storage account name for Terraform state"
+  type        = string
+  default     = "tfstateaccount"
+}
+
+variable "container_name" {
+  description = "Blob container to store state"
+  type        = string
+  default     = "tfstate"
+}
+
+provider "azurerm" {
+  features {}
+}
+
+resource "azurerm_resource_group" "state" {
+  name     = var.resource_group_name
+  location = var.location
+}
+
+resource "azurerm_storage_account" "state" {
+  name                     = var.storage_account_name
+  resource_group_name      = azurerm_resource_group.state.name
+  location                 = azurerm_resource_group.state.location
+  account_tier             = "Standard"
+  account_replication_type = "LRS"
+  min_tls_version          = "TLS1_2"
+  allow_blob_public_access = false
+}
+
+resource "azurerm_storage_container" "state" {
+  name                  = var.container_name
+  storage_account_name  = azurerm_storage_account.state.name
+  container_access_type = "private"
+}
+
+output "resource_group" {
+  value       = azurerm_resource_group.state.name
+  description = "Resource group created for Terraform state"
+}
+
+output "storage_account" {
+  value       = azurerm_storage_account.state.name
+  description = "Storage account for Terraform state"
+}
+
+output "container" {
+  value       = azurerm_storage_container.state.name
+  description = "Blob container used for Terraform state"
+}

iac-template/terraform-hcl-standard/azure-cloud/config/backend.tf

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+terraform {
+  backend "azurerm" {
+    # 请在使用前替换为实际资源组、存储账户、容器和状态文件名
+    resource_group_name  = "tfstate-rg"
+    storage_account_name = "tfstateaccount"
+    container_name       = "tfstate"
+    key                  = "terraform.tfstate"
+  }
+}

iac-template/terraform-hcl-standard/azure-cloud/config/provider.tf

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+terraform {
+  required_version = ">= 1.5.0"
+  required_providers {
+    azurerm = {
+      source  = "hashicorp/azurerm"
+      version = ">= 3.90.0"
+    }
+  }
+}
+
+provider "azurerm" {
+  features {}
+  subscription_id = var.subscription_id
+  tenant_id       = var.tenant_id
+}

iac-template/terraform-hcl-standard/azure-cloud/config/variables.tf

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+variable "subscription_id" {
+  description = "Azure subscription id"
+  type        = string
+}
+
+variable "tenant_id" {
+  description = "Azure AD tenant id"
+  type        = string
+}
+
+variable "location" {
+  description = "Azure region"
+  type        = string
+  default     = "eastus"
+}

iac-template/terraform-hcl-standard/azure-cloud/envs/dev/main.tf

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+terraform {
+  required_version = ">= 1.5.0"
+  required_providers {
+    azurerm = {
+      source  = "hashicorp/azurerm"
+      version = ">= 3.90.0"
+    }
+    tls = {
+      source  = "hashicorp/tls"
+      version = ">= 4.0"
+    }
+  }
+}
+
+variable "subscription_id" {
+  type        = string
+  description = "Target subscription"
+}
+
+variable "tenant_id" {
+  type        = string
+  description = "AAD tenant id"
+}
+
+variable "location" {
+  type        = string
+  description = "Azure region"
+  default     = "eastus"
+}
+
+variable "principal_id" {
+  type        = string
+  description = "Principal to grant Contributor on the landing zone"
+}
+
+provider "azurerm" {
+  features {}
+  subscription_id = var.subscription_id
+  tenant_id       = var.tenant_id
+}
+
+locals {
+  resource_group_name = "demo-rg"
+  vnet_name           = "demo-vnet"
+}
+
+module "landingzone" {
+  source              = "../../modules/landingzone"
+  resource_group_name = local.resource_group_name
+  location            = var.location
+}
+
+module "iam" {
+  source               = "../../modules/iam"
+  scope                = module.landingzone.resource_group_id
+  principal_id         = var.principal_id
+  role_definition_name = "Contributor"
+}
+
+module "vpc" {
+  source              = "../../modules/vpc"
+  resource_group_name = module.landingzone.resource_group_name
+  location            = var.location
+  vnet_name           = local.vnet_name
+  address_space       = ["10.20.0.0/16"]
+  subnets = [
+    {
+      name           = "app"
+      address_prefix = "10.20.1.0/24"
+    }
+  ]
+}
+
+module "nsg" {
+  source              = "../../modules/sg"
+  resource_group_name = module.landingzone.resource_group_name
+  location            = var.location
+  name                = "demo-nsg"
+}
+
+resource "azurerm_subnet_network_security_group_association" "app" {
+  subnet_id                 = module.vpc.subnet_ids["app"]
+  network_security_group_id = module.nsg.nsg_id
+}
+
+module "keypair" {
+  source = "../../modules/keypair"
+}
+
+module "vm" {
+  source              = "../../modules/ec2"
+  resource_group_name = module.landingzone.resource_group_name
+  location            = var.location
+  vm_name             = "demo-vm"
+  subnet_id           = module.vpc.subnet_ids["app"]
+  admin_username      = "azureuser"
+  ssh_public_key      = module.keypair.public_key_openssh
+}
+
+module "storage" {
+  source               = "../../modules/s3"
+  resource_group_name  = module.landingzone.resource_group_name
+  location             = var.location
+  storage_account_name = "demostorageacct01"
+  container_name       = "artifacts"
+}
+
+module "database" {
+  source                    = "../../modules/rds"
+  resource_group_name       = module.landingzone.resource_group_name
+  location                  = var.location
+  server_name               = "demo-postgres"
+  admin_username            = "pgadmin"
+  admin_password            = "P@ssword12345!"
+  db_name                   = "appdb"
+  public_network_access_enabled = true
+}
+
+module "cache" {
+  source              = "../../modules/redis"
+  resource_group_name = module.landingzone.resource_group_name
+  location            = var.location
+  name                = "demorediscache"
+  sku_name            = "Standard"
+  capacity            = 1
+}
+
+output "resource_group" {
+  value       = module.landingzone.resource_group_name
+  description = "Resource group provisioned for demo"
+}
+
+output "vm_id" {
+  value       = module.vm.vm_id
+  description = "Demo VM ID"
+}
+
+output "ssh_private_key" {
+  value       = module.keypair.private_key_pem
+  description = "Private key to access the VM"
+  sensitive   = true
+}

iac-template/terraform-hcl-standard/azure-cloud/modules/alb/main.tf

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+variable "resource_group_name" {
+  description = "Resource group for the Application Gateway"
+  type        = string
+}
+
+variable "location" {
+  description = "Azure region"
+  type        = string
+}
+
+variable "name" {
+  description = "Application Gateway name"
+  type        = string
+  default     = "app-gateway"
+}
+
+variable "subnet_id" {
+  description = "Subnet ID used by the Application Gateway"
+  type        = string
+}
+
+variable "backend_port" {
+  description = "Backend port for the default pool"
+  type        = number
+  default     = 80
+}
+
+variable "sku_name" {
+  description = "Application Gateway SKU"
+  type        = string
+  default     = "Standard_v2"
+}
+
+variable "capacity" {
+  description = "Instance count"
+  type        = number
+  default     = 1
+}
+
+resource "azurerm_public_ip" "gateway" {
+  name                = "${var.name}-pip"
+  resource_group_name = var.resource_group_name
+  location            = var.location
+  allocation_method   = "Static"
+  sku                 = "Standard"
+}
+
+resource "azurerm_application_gateway" "this" {
+  name                = var.name
+  resource_group_name = var.resource_group_name
+  location            = var.location
+
+  sku {
+    name = var.sku_name
+    tier = "Standard_v2"
+  }
+
+  autoscale_configuration {
+    min_capacity = var.capacity
+    max_capacity = var.capacity
+  }
+
+  gateway_ip_configuration {
+    name      = "gateway-ipcfg"
+    subnet_id = var.subnet_id
+  }
+
+  frontend_port {
+    name = "frontend-port"
+    port = 80
+  }
+
+  frontend_ip_configuration {
+    name                 = "frontend-ip"
+    public_ip_address_id = azurerm_public_ip.gateway.id
+  }
+
+  backend_address_pool {
+    name = "default-backend"
+  }
+
+  backend_http_settings {
+    name                  = "default-http"
+    cookie_based_affinity = "Disabled"
+    port                  = var.backend_port
+    protocol              = "Http"
+    request_timeout       = 30
+  }
+
+  http_listener {
+    name                           = "http-listener"
+    frontend_ip_configuration_name = "frontend-ip"
+    frontend_port_name             = "frontend-port"
+    protocol                       = "Http"
+  }
+
+  request_routing_rule {
+    name                       = "http-rule"
+    rule_type                  = "Basic"
+    http_listener_name         = "http-listener"
+    backend_address_pool_name  = "default-backend"
+    backend_http_settings_name = "default-http"
+  }
+}
+
+output "application_gateway_id" {
+  value       = azurerm_application_gateway.this.id
+  description = "Application Gateway resource ID"
+}
+
+output "public_ip" {
+  value       = azurerm_public_ip.gateway.ip_address
+  description = "Public IP assigned to the Application Gateway"
+}

iac-template/terraform-hcl-standard/azure-cloud/modules/ami_lookup/main.tf

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+variable "location" {
+  description = "Azure region"
+  type        = string
+  default     = "eastus"
+}
+
+variable "publisher" {
+  description = "Image publisher"
+  type        = string
+  default     = "Canonical"
+}
+
+variable "offer" {
+  description = "Image offer"
+  type        = string
+  default     = "0001-com-ubuntu-server-focal"
+}
+
+variable "sku" {
+  description = "Image SKU"
+  type        = string
+  default     = "20_04-lts"
+}
+
+data "azurerm_platform_image" "ubuntu" {
+  location  = var.location
+  publisher = var.publisher
+  offer     = var.offer
+  sku       = var.sku
+}
+
+output "image" {
+  value = {
+    publisher = data.azurerm_platform_image.ubuntu.publisher
+    offer     = data.azurerm_platform_image.ubuntu.offer
+    sku       = data.azurerm_platform_image.ubuntu.sku
+    version   = data.azurerm_platform_image.ubuntu.version
+  }
+  description = "Latest platform image metadata"
+}

iac-template/terraform-hcl-standard/azure-cloud/modules/ec2/main.tf

@@ -0,0 +1,104 @@
+variable "resource_group_name" {
+  description = "Resource group for the VM"
+  type        = string
+}
+
+variable "location" {
+  description = "Azure region"
+  type        = string
+}
+
+variable "vm_name" {
+  description = "Virtual machine name"
+  type        = string
+  default     = "vm"
+}
+
+variable "subnet_id" {
+  description = "Subnet ID to attach the VM"
+  type        = string
+}
+
+variable "admin_username" {
+  description = "Admin username for the VM"
+  type        = string
+  default     = "azureuser"
+}
+
+variable "ssh_public_key" {
+  description = "Public SSH key for login"
+  type        = string
+}
+
+variable "vm_size" {
+  description = "Azure VM size"
+  type        = string
+  default     = "Standard_B2s"
+}
+
+variable "source_image" {
+  description = "Platform image definition"
+  type = object({
+    publisher = string
+    offer     = string
+    sku       = string
+    version   = string
+  })
+  default = {
+    publisher = "Canonical"
+    offer     = "0001-com-ubuntu-server-focal"
+    sku       = "20_04-lts"
+    version   = "latest"
+  }
+}
+
+resource "azurerm_network_interface" "vm" {
+  name                = "${var.vm_name}-nic"
+  location            = var.location
+  resource_group_name = var.resource_group_name
+
+  ip_configuration {
+    name                          = "ipconfig1"
+    subnet_id                     = var.subnet_id
+    private_ip_address_allocation = "Dynamic"
+  }
+}
+
+resource "azurerm_linux_virtual_machine" "vm" {
+  name                = var.vm_name
+  resource_group_name = var.resource_group_name
+  location            = var.location
+  size                = var.vm_size
+  admin_username      = var.admin_username
+  network_interface_ids = [
+    azurerm_network_interface.vm.id
+  ]
+
+  admin_ssh_key {
+    username   = var.admin_username
+    public_key = var.ssh_public_key
+  }
+
+  os_disk {
+    name                 = "${var.vm_name}-osdisk"
+    caching              = "ReadWrite"
+    storage_account_type = "Standard_LRS"
+  }
+
+  source_image_reference {
+    publisher = var.source_image.publisher
+    offer     = var.source_image.offer
+    sku       = var.source_image.sku
+    version   = var.source_image.version
+  }
+}
+
+output "vm_id" {
+  value       = azurerm_linux_virtual_machine.vm.id
+  description = "Virtual machine resource ID"
+}
+
+output "nic_id" {
+  value       = azurerm_network_interface.vm.id
+  description = "Network interface ID"
+}

iac-template/terraform-hcl-standard/azure-cloud/modules/iam/main.tf

@@ -0,0 +1,31 @@
+variable "scope" {
+  description = "Scope for the role assignment"
+  type        = string
+}
+
+variable "principal_id" {
+  description = "Object ID of the principal to assign"
+  type        = string
+}
+
+variable "role_definition_name" {
+  description = "Built-in role name"
+  type        = string
+  default     = "Contributor"
+}
+
+data "azurerm_role_definition" "selected" {
+  name = var.role_definition_name
+  scope = var.scope
+}
+
+resource "azurerm_role_assignment" "assignment" {
+  scope              = var.scope
+  role_definition_id = data.azurerm_role_definition.selected.id
+  principal_id       = var.principal_id
+}
+
+output "role_definition" {
+  value       = data.azurerm_role_definition.selected.name
+  description = "Role assigned to the principal"
+}

iac-template/terraform-hcl-standard/azure-cloud/modules/keypair/main.tf

@@ -0,0 +1,27 @@
+variable "algorithm" {
+  description = "Algorithm for the SSH key"
+  type        = string
+  default     = "RSA"
+}
+
+variable "rsa_bits" {
+  description = "RSA bits for the key when algorithm is RSA"
+  type        = number
+  default     = 4096
+}
+
+resource "tls_private_key" "ssh" {
+  algorithm = var.algorithm
+  rsa_bits  = var.algorithm == "RSA" ? var.rsa_bits : null
+}
+
+output "private_key_pem" {
+  value       = tls_private_key.ssh.private_key_pem
+  sensitive   = true
+  description = "Generated private key"
+}
+
+output "public_key_openssh" {
+  value       = tls_private_key.ssh.public_key_openssh
+  description = "Generated public key"
+}

iac-template/terraform-hcl-standard/azure-cloud/modules/landingzone/main.tf

@@ -0,0 +1,45 @@
+variable "resource_group_name" {
+  description = "Resource group to bootstrap"
+  type        = string
+  default     = "landingzone-rg"
+}
+
+variable "location" {
+  description = "Azure region"
+  type        = string
+  default     = "eastus"
+}
+
+variable "log_analytics_workspace_name" {
+  description = "Log Analytics workspace name"
+  type        = string
+  default     = "landingzone-law"
+}
+
+resource "azurerm_resource_group" "this" {
+  name     = var.resource_group_name
+  location = var.location
+}
+
+resource "azurerm_log_analytics_workspace" "logs" {
+  name                = var.log_analytics_workspace_name
+  location            = var.location
+  resource_group_name = azurerm_resource_group.this.name
+  sku                 = "PerGB2018"
+  retention_in_days   = 30
+}
+
+output "resource_group_id" {
+  value       = azurerm_resource_group.this.id
+  description = "Landing zone resource group ID"
+}
+
+output "log_analytics_workspace_id" {
+  value       = azurerm_log_analytics_workspace.logs.id
+  description = "Log Analytics workspace ID"
+}
+
+output "resource_group_name" {
+  value       = azurerm_resource_group.this.name
+  description = "Landing zone resource group name"
+}

iac-template/terraform-hcl-standard/azure-cloud/modules/msk/main.tf

@@ -0,0 +1,58 @@
+variable "resource_group_name" {
+  description = "Resource group for Event Hubs"
+  type        = string
+}
+
+variable "location" {
+  description = "Azure region"
+  type        = string
+}
+
+variable "namespace_name" {
+  description = "Event Hubs namespace name"
+  type        = string
+}
+
+variable "eventhub_name" {
+  description = "Event Hub name"
+  type        = string
+  default     = "events"
+}
+
+variable "partition_count" {
+  description = "Number of partitions"
+  type        = number
+  default     = 2
+}
+
+variable "message_retention" {
+  description = "Message retention in days"
+  type        = number
+  default     = 1
+}
+
+resource "azurerm_eventhub_namespace" "ns" {
+  name                = var.namespace_name
+  location            = var.location
+  resource_group_name = var.resource_group_name
+  sku                 = "Standard"
+  capacity            = 1
+}
+
+resource "azurerm_eventhub" "hub" {
+  name                = var.eventhub_name
+  namespace_name      = azurerm_eventhub_namespace.ns.name
+  resource_group_name = var.resource_group_name
+  partition_count     = var.partition_count
+  message_retention   = var.message_retention
+}
+
+output "namespace_id" {
+  value       = azurerm_eventhub_namespace.ns.id
+  description = "Event Hubs namespace ID"
+}
+
+output "eventhub_id" {
+  value       = azurerm_eventhub.hub.id
+  description = "Event Hub ID"
+}

iac-template/terraform-hcl-standard/azure-cloud/modules/nlb/main.tf

@@ -0,0 +1,101 @@
+variable "resource_group_name" {
+  description = "Resource group for the load balancer"
+  type        = string
+}
+
+variable "location" {
+  description = "Azure region"
+  type        = string
+}
+
+variable "name" {
+  description = "Load balancer name"
+  type        = string
+  default     = "nlb"
+}
+
+variable "protocol" {
+  description = "Frontend protocol"
+  type        = string
+  default     = "Tcp"
+}
+
+variable "frontend_port" {
+  description = "Frontend port"
+  type        = number
+  default     = 80
+}
+
+variable "backend_port" {
+  description = "Backend port"
+  type        = number
+  default     = 80
+}
+
+variable "backend_pool_backend_ids" {
+  description = "List of backend NIC IDs or IP configurations"
+  type        = list(string)
+  default     = []
+}
+
+resource "azurerm_public_ip" "lb" {
+  name                = "${var.name}-pip"
+  location            = var.location
+  resource_group_name = var.resource_group_name
+  allocation_method   = "Static"
+  sku                 = "Standard"
+}
+
+resource "azurerm_lb" "this" {
+  name                = var.name
+  location            = var.location
+  resource_group_name = var.resource_group_name
+  sku                 = "Standard"
+
+  frontend_ip_configuration {
+    name                 = "public"
+    public_ip_address_id = azurerm_public_ip.lb.id
+  }
+}
+
+resource "azurerm_lb_backend_address_pool" "pool" {
+  name            = "backendpool"
+  loadbalancer_id = azurerm_lb.this.id
+}
+
+resource "azurerm_lb_probe" "tcp" {
+  name                = "tcp-probe"
+  resource_group_name = var.resource_group_name
+  loadbalancer_id     = azurerm_lb.this.id
+  protocol            = var.protocol
+  port                = var.backend_port
+}
+
+resource "azurerm_lb_rule" "lb_rule" {
+  name                           = "lb-rule"
+  resource_group_name            = var.resource_group_name
+  loadbalancer_id                = azurerm_lb.this.id
+  protocol                       = var.protocol
+  frontend_port                  = var.frontend_port
+  backend_port                   = var.backend_port
+  frontend_ip_configuration_name = "public"
+  backend_address_pool_id        = azurerm_lb_backend_address_pool.pool.id
+  probe_id                       = azurerm_lb_probe.tcp.id
+}
+
+resource "azurerm_network_interface_backend_address_pool_association" "attach" {
+  for_each                = toset(var.backend_pool_backend_ids)
+  network_interface_id    = each.value
+  ip_configuration_name   = "ipconfig1"
+  backend_address_pool_id = azurerm_lb_backend_address_pool.pool.id
+}
+
+output "lb_public_ip" {
+  value       = azurerm_public_ip.lb.ip_address
+  description = "Public IP assigned to the load balancer"
+}
+
+output "backend_pool_id" {
+  value       = azurerm_lb_backend_address_pool.pool.id
+  description = "Backend address pool ID"
+}

iac-template/terraform-hcl-standard/azure-cloud/modules/rds/main.tf

@@ -0,0 +1,95 @@
+variable "resource_group_name" {
+  description = "Resource group for the database"
+  type        = string
+}
+
+variable "location" {
+  description = "Azure region"
+  type        = string
+}
+
+variable "server_name" {
+  description = "PostgreSQL flexible server name"
+  type        = string
+}
+
+variable "admin_username" {
+  description = "Admin username"
+  type        = string
+  default     = "pgadmin"
+}
+
+variable "admin_password" {
+  description = "Admin password"
+  type        = string
+  sensitive   = true
+}
+
+variable "version" {
+  description = "PostgreSQL version"
+  type        = string
+  default     = "14"
+}
+
+variable "sku_name" {
+  description = "SKU name for flexible server"
+  type        = string
+  default     = "GP_Standard_D2ds_v4"
+}
+
+variable "storage_mb" {
+  description = "Storage in MB"
+  type        = number
+  default     = 32768
+}
+
+variable "db_name" {
+  description = "Default database name"
+  type        = string
+  default     = "app"
+}
+
+variable "public_network_access_enabled" {
+  description = "Allow public network access"
+  type        = bool
+  default     = true
+}
+
+resource "azurerm_postgresql_flexible_server" "this" {
+  name                   = var.server_name
+  resource_group_name    = var.resource_group_name
+  location               = var.location
+  version                = var.version
+  administrator_login    = var.admin_username
+  administrator_password = var.admin_password
+  sku_name               = var.sku_name
+  storage_mb             = var.storage_mb
+  zone                   = 1
+  backup_retention_days  = 7
+  public_network_access_enabled = var.public_network_access_enabled
+}
+
+resource "azurerm_postgresql_flexible_database" "db" {
+  name      = var.db_name
+  server_id = azurerm_postgresql_flexible_server.this.id
+  charset   = "UTF8"
+  collation = "en_US.utf8"
+}
+
+resource "azurerm_postgresql_flexible_server_firewall_rule" "allow_all" {
+  count            = var.public_network_access_enabled ? 1 : 0
+  name             = "allow-all"
+  server_id        = azurerm_postgresql_flexible_server.this.id
+  start_ip_address = "0.0.0.0"
+  end_ip_address   = "255.255.255.255"
+}
+
+output "server_fqdn" {
+  value       = azurerm_postgresql_flexible_server.this.fqdn
+  description = "Database server FQDN"
+}
+
+output "database_name" {
+  value       = azurerm_postgresql_flexible_database.db.name
+  description = "Database name created"
+}

iac-template/terraform-hcl-standard/azure-cloud/modules/redis/main.tf

@@ -0,0 +1,48 @@
+variable "resource_group_name" {
+  description = "Resource group for Redis"
+  type        = string
+}
+
+variable "location" {
+  description = "Azure region"
+  type        = string
+}
+
+variable "name" {
+  description = "Redis cache name"
+  type        = string
+}
+
+variable "sku_name" {
+  description = "Redis SKU name"
+  type        = string
+  default     = "Standard"
+}
+
+variable "capacity" {
+  description = "Redis capacity (size family dependent)"
+  type        = number
+  default     = 1
+}
+
+resource "azurerm_redis_cache" "this" {
+  name                = var.name
+  location            = var.location
+  resource_group_name = var.resource_group_name
+  capacity            = var.capacity
+  family              = "C"
+  sku_name            = var.sku_name
+  enable_non_ssl_port = false
+  minimum_tls_version = "1.2"
+}
+
+output "hostname" {
+  value       = azurerm_redis_cache.this.hostname
+  description = "Redis hostname"
+}
+
+output "primary_key" {
+  value       = azurerm_redis_cache.this.primary_access_key
+  sensitive   = true
+  description = "Redis primary key"
+}

iac-template/terraform-hcl-standard/azure-cloud/modules/s3/main.tf

@@ -0,0 +1,46 @@
+variable "resource_group_name" {
+  description = "Resource group for storage"
+  type        = string
+}
+
+variable "location" {
+  description = "Azure region"
+  type        = string
+}
+
+variable "storage_account_name" {
+  description = "Storage account name"
+  type        = string
+}
+
+variable "container_name" {
+  description = "Blob container name"
+  type        = string
+  default     = "app"
+}
+
+resource "azurerm_storage_account" "this" {
+  name                     = var.storage_account_name
+  resource_group_name      = var.resource_group_name
+  location                 = var.location
+  account_tier             = "Standard"
+  account_replication_type = "LRS"
+  min_tls_version          = "TLS1_2"
+  allow_blob_public_access = false
+}
+
+resource "azurerm_storage_container" "this" {
+  name                  = var.container_name
+  storage_account_name  = azurerm_storage_account.this.name
+  container_access_type = "private"
+}
+
+output "storage_account_id" {
+  value       = azurerm_storage_account.this.id
+  description = "Storage account ID"
+}
+
+output "container_name" {
+  value       = azurerm_storage_container.this.name
+  description = "Blob container name"
+}

iac-template/terraform-hcl-standard/azure-cloud/modules/sg/main.tf

@@ -0,0 +1,69 @@
+variable "resource_group_name" {
+  description = "Resource group for NSG"
+  type        = string
+}
+
+variable "location" {
+  description = "Azure region"
+  type        = string
+}
+
+variable "name" {
+  description = "Network security group name"
+  type        = string
+  default     = "nsg"
+}
+
+variable "rules" {
+  description = "List of security rules"
+  type = list(object({
+    name                       = string
+    priority                   = number
+    direction                  = string
+    access                     = string
+    protocol                   = string
+    source_port_range          = string
+    destination_port_range     = string
+    source_address_prefix      = string
+    destination_address_prefix = string
+  }))
+  default = [
+    {
+      name                       = "ssh"
+      priority                   = 100
+      direction                  = "Inbound"
+      access                     = "Allow"
+      protocol                   = "Tcp"
+      source_port_range          = "*"
+      destination_port_range     = "22"
+      source_address_prefix      = "*"
+      destination_address_prefix = "*"
+    }
+  ]
+}
+
+resource "azurerm_network_security_group" "this" {
+  name                = var.name
+  location            = var.location
+  resource_group_name = var.resource_group_name
+}
+
+resource "azurerm_network_security_rule" "rules" {
+  for_each                    = { for rule in var.rules : rule.name => rule }
+  name                        = each.value.name
+  priority                    = each.value.priority
+  direction                   = each.value.direction
+  access                      = each.value.access
+  protocol                    = each.value.protocol
+  source_port_range           = each.value.source_port_range
+  destination_port_range      = each.value.destination_port_range
+  source_address_prefix       = each.value.source_address_prefix
+  destination_address_prefix  = each.value.destination_address_prefix
+  resource_group_name         = var.resource_group_name
+  network_security_group_name = azurerm_network_security_group.this.name
+}
+
+output "nsg_id" {
+  value       = azurerm_network_security_group.this.id
+  description = "Network security group ID"
+}

iac-template/terraform-hcl-standard/azure-cloud/modules/vpc/main.tf

@@ -0,0 +1,62 @@
+variable "resource_group_name" {
+  description = "Resource group for the virtual network"
+  type        = string
+}
+
+variable "location" {
+  description = "Azure region"
+  type        = string
+}
+
+variable "vnet_name" {
+  description = "Virtual network name"
+  type        = string
+  default     = "main-vnet"
+}
+
+variable "address_space" {
+  description = "Address space for the virtual network"
+  type        = list(string)
+  default     = ["10.10.0.0/16"]
+}
+
+variable "subnets" {
+  description = "Subnets to create inside the VNet"
+  type = list(object({
+    name           = string
+    address_prefix = string
+    service_endpoints = optional(list(string), [])
+  }))
+  default = [
+    {
+      name           = "default"
+      address_prefix = "10.10.1.0/24"
+    }
+  ]
+}
+
+resource "azurerm_virtual_network" "this" {
+  name                = var.vnet_name
+  address_space       = var.address_space
+  location            = var.location
+  resource_group_name = var.resource_group_name
+}
+
+resource "azurerm_subnet" "this" {
+  for_each             = { for subnet in var.subnets : subnet.name => subnet }
+  name                 = each.value.name
+  resource_group_name  = var.resource_group_name
+  virtual_network_name = azurerm_virtual_network.this.name
+  address_prefixes     = [each.value.address_prefix]
+  service_endpoints    = lookup(each.value, "service_endpoints", [])
+}
+
+output "vnet_id" {
+  value       = azurerm_virtual_network.this.id
+  description = "Virtual network resource ID"
+}
+
+output "subnet_ids" {
+  value       = { for name, subnet in azurerm_subnet.this : name => subnet.id }
+  description = "Map of subnet IDs keyed by name"
+}