使用 Terraform 在 Azure 中建立輪輻網路

發行項
12/13/2023

Terraform 可讓您定義、預覽和部署雲端基礎結構。使用 Terraform 時，您可以使用 HCL 語法來建立設定檔。 HCL 語法可讓您指定雲端提供者 (例如 Azure) 和構成雲端基礎結構的元素。建立設定檔之後，您可以建立執行計畫，讓您先預覽基礎結構變更，之後再部署。驗證變更之後，您可以套用執行計畫來部署基礎結構。

在本文中，您會實作兩個不同的輪輻網路，以示範工作負載的分離。網路會使用中樞虛擬網路共用一般資源。輪輻可用來隔離自己 VNet 中的工作負載，與其他輪輻分開管理。每個工作負載在透過 Azure 負載平衡器連線多個子網路的情況下，都可能包括多個階層。

在本文中，您將學會如何：

在中樞輪輻拓撲中實作輪輻 VNet
在輪輻網路中建立虛擬機
使用中樞網路建立虛擬網路對等互連

1.設定您的環境

Azure 訂用帳戶：如果您沒有 Azure 訂用帳戶，請在開始前建立免費帳戶。

設定 Terraform：如果您尚未這麼做，請使用下列其中一個選項來設定 Terraform：

在 Azure 中使用 Terraform 建立中樞和輪輻混合式網路拓撲。
在 Azure 中使用 Terraform 建立內部部署虛擬網路。
在 Azure 中使用 Terraform 建立中樞虛擬網路。
在 Azure 中使用 Terraform 建立中樞虛擬網路設備。

2.實作 Terraform 程式代碼

本節會建立兩個輪輻腳本。每個腳本都會定義工作負載的輪輻虛擬網路和虛擬機。接著會建立從中樞到輪輻的對等互連虛擬網路。

將本系列第一篇文章中建立的範例目錄設為目前目錄。

建立名為 spoke1.tf 的檔案，並插入下列程式碼：

locals {
    spoke1-location       = "eastus"
    spoke1-resource-group = "spoke1-vnet-rg"
    prefix-spoke1         = "spoke1"
}

resource "azurerm_resource_group" "spoke1-vnet-rg" {
    name     = local.spoke1-resource-group
    location = local.spoke1-location
}

resource "azurerm_virtual_network" "spoke1-vnet" {
    name                = "spoke1-vnet"
    location            = azurerm_resource_group.spoke1-vnet-rg.location
    resource_group_name = azurerm_resource_group.spoke1-vnet-rg.name
    address_space       = ["10.1.0.0/16"]

    tags = {
    environment = local.prefix-spoke1
    }
}

resource "azurerm_subnet" "spoke1-mgmt" {
    name                 = "mgmt"
    resource_group_name  = azurerm_resource_group.spoke1-vnet-rg.name
    virtual_network_name = azurerm_virtual_network.spoke1-vnet.name
    address_prefixes     = ["10.1.0.64/27"]
}

resource "azurerm_subnet" "spoke1-workload" {
    name                 = "workload"
    resource_group_name  = azurerm_resource_group.spoke1-vnet-rg.name
    virtual_network_name = azurerm_virtual_network.spoke1-vnet.name
    address_prefixes     = ["10.1.1.0/24"]
}

resource "azurerm_virtual_network_peering" "spoke1-hub-peer" {
    name                      = "spoke1-hub-peer"
    resource_group_name       = azurerm_resource_group.spoke1-vnet-rg.name
    virtual_network_name      = azurerm_virtual_network.spoke1-vnet.name
    remote_virtual_network_id = azurerm_virtual_network.hub-vnet.id

    allow_virtual_network_access = true
    allow_forwarded_traffic = true
    allow_gateway_transit   = false
    use_remote_gateways     = true
    depends_on = [azurerm_virtual_network.spoke1-vnet, azurerm_virtual_network.hub-vnet , azurerm_virtual_network_gateway.hub-vnet-gateway]
}

resource "azurerm_network_interface" "spoke1-nic" {
    name                 = "${local.prefix-spoke1}-nic"
    location             = azurerm_resource_group.spoke1-vnet-rg.location
    resource_group_name  = azurerm_resource_group.spoke1-vnet-rg.name
    enable_ip_forwarding = true

    ip_configuration {
    name                          = local.prefix-spoke1
    subnet_id                     = azurerm_subnet.spoke1-mgmt.id
    private_ip_address_allocation = "Dynamic"
    }
}

resource "azurerm_virtual_machine" "spoke1-vm" {
    name                  = "${local.prefix-spoke1}-vm"
    location              = azurerm_resource_group.spoke1-vnet-rg.location
    resource_group_name   = azurerm_resource_group.spoke1-vnet-rg.name
    network_interface_ids = [azurerm_network_interface.spoke1-nic.id]
    vm_size               = var.vmsize

    storage_image_reference {
    publisher = "Canonical"
    offer     = "UbuntuServer"
    sku       = "16.04-LTS"
    version   = "latest"
    }

    storage_os_disk {
    name              = "myosdisk1"
    caching           = "ReadWrite"
    create_option     = "FromImage"
    managed_disk_type = "Standard_LRS"
    }

    os_profile {
    computer_name  = "${local.prefix-spoke1}-vm"
    admin_username = var.username
    admin_password = var.password
    }

    os_profile_linux_config {
    disable_password_authentication = false
    }

    tags = {
    environment = local.prefix-spoke1
    }
}

resource "azurerm_virtual_network_peering" "hub-spoke1-peer" {
    name                      = "hub-spoke1-peer"
    resource_group_name       = azurerm_resource_group.hub-vnet-rg.name
    virtual_network_name      = azurerm_virtual_network.hub-vnet.name
    remote_virtual_network_id = azurerm_virtual_network.spoke1-vnet.id
    allow_virtual_network_access = true
    allow_forwarded_traffic   = true
    allow_gateway_transit     = true
    use_remote_gateways       = false
    depends_on = [azurerm_virtual_network.spoke1-vnet, azurerm_virtual_network.hub-vnet, azurerm_virtual_network_gateway.hub-vnet-gateway]
}

建立名為 spoke2.tf 的檔案，並插入下列程式碼：

locals {
    spoke2-location       = "eastus"
    spoke2-resource-group = "spoke2-vnet-rg"
    prefix-spoke2         = "spoke2"
}

resource "azurerm_resource_group" "spoke2-vnet-rg" {
    name     = local.spoke2-resource-group
    location = local.spoke2-location
}

resource "azurerm_virtual_network" "spoke2-vnet" {
    name                = "${local.prefix-spoke2}-vnet"
    location            = azurerm_resource_group.spoke2-vnet-rg.location
    resource_group_name = azurerm_resource_group.spoke2-vnet-rg.name
    address_space       = ["10.2.0.0/16"]

    tags = {
    environment = local.prefix-spoke2
    }
}

resource "azurerm_subnet" "spoke2-mgmt" {
    name                 = "mgmt"
    resource_group_name  = azurerm_resource_group.spoke2-vnet-rg.name
    virtual_network_name = azurerm_virtual_network.spoke2-vnet.name
    address_prefixes     = ["10.2.0.64/27"]
}

resource "azurerm_subnet" "spoke2-workload" {
    name                 = "workload"
    resource_group_name  = azurerm_resource_group.spoke2-vnet-rg.name
    virtual_network_name = azurerm_virtual_network.spoke2-vnet.name
    address_prefixes     = ["10.2.1.0/24"]
}

resource "azurerm_virtual_network_peering" "spoke2-hub-peer" {
    name                      = "${local.prefix-spoke2}-hub-peer"
    resource_group_name       = azurerm_resource_group.spoke2-vnet-rg.name
    virtual_network_name      = azurerm_virtual_network.spoke2-vnet.name
    remote_virtual_network_id = azurerm_virtual_network.hub-vnet.id

    allow_virtual_network_access = true
    allow_forwarded_traffic = true
    allow_gateway_transit   = false
    use_remote_gateways     = true
    depends_on = [azurerm_virtual_network.spoke2-vnet, azurerm_virtual_network.hub-vnet, azurerm_virtual_network_gateway.hub-vnet-gateway]
}

resource "azurerm_network_interface" "spoke2-nic" {
    name                 = "${local.prefix-spoke2}-nic"
    location             = azurerm_resource_group.spoke2-vnet-rg.location
    resource_group_name  = azurerm_resource_group.spoke2-vnet-rg.name
    enable_ip_forwarding = true

    ip_configuration {
    name                          = local.prefix-spoke2
    subnet_id                     = azurerm_subnet.spoke2-mgmt.id
    private_ip_address_allocation = "Dynamic"
    }

    tags = {
    environment = local.prefix-spoke2
    }
}

resource "azurerm_virtual_machine" "spoke2-vm" {
    name                  = "${local.prefix-spoke2}-vm"
    location              = azurerm_resource_group.spoke2-vnet-rg.location
    resource_group_name   = azurerm_resource_group.spoke2-vnet-rg.name
    network_interface_ids = [azurerm_network_interface.spoke2-nic.id]
    vm_size               = var.vmsize

    storage_image_reference {
    publisher = "Canonical"
    offer     = "UbuntuServer"
    sku       = "16.04-LTS"
    version   = "latest"
    }

    storage_os_disk {
    name              = "myosdisk1"
    caching           = "ReadWrite"
    create_option     = "FromImage"
    managed_disk_type = "Standard_LRS"
    }

    os_profile {
    computer_name  = "${local.prefix-spoke2}-vm"
    admin_username = var.username
    admin_password = var.password
    }

    os_profile_linux_config {
    disable_password_authentication = false
    }

    tags = {
    environment = local.prefix-spoke2
    }
}

resource "azurerm_virtual_network_peering" "hub-spoke2-peer" {
    name                      = "hub-spoke2-peer"
    resource_group_name       = azurerm_resource_group.hub-vnet-rg.name
    virtual_network_name      = azurerm_virtual_network.hub-vnet.name
    remote_virtual_network_id = azurerm_virtual_network.spoke2-vnet.id
    allow_virtual_network_access = true
    allow_forwarded_traffic   = true
    allow_gateway_transit     = true
    use_remote_gateways       = false
    depends_on = [azurerm_virtual_network.spoke2-vnet, azurerm_virtual_network.hub-vnet, azurerm_virtual_network_gateway.hub-vnet-gateway]
}

對 Azure 上的 Terraform 進行疑難排解

針對在 Azure 上使用 Terraform 時的常見問題進行疑難排解

下一步

使用 Azure 中的 Terraform 驗證中樞和輪輻網路

使用 Terraform 在 Azure 中建立輪輻網路

1.設定您的環境

2.實作 Terraform 程式代碼

對 Azure 上的 Terraform 進行疑難排解

下一步

意見反應

意見反應

其他資源