如何解决带内部负载均衡器的Azurerm Terraform标尺套件
我一直在寻找一种适当的方法来使用内部负载平衡器来对我的内部虚拟机规模进行设置，该内部负载平衡器不会暴露于具有公共IP的互联网上。但是，节点应该可以访问Internet以下载github中的某些软件包。
我在部署负载均衡器和比例尺时遇到了这个问题，但是我没有从比例尺节点上的Internet带外连接...
我读了这篇文章，但没有告诉how to proceed
根据我的理解，我应该从节点上访问Internet以下载软件包，因为我使用的是标准负载均衡器，但它不起作用。
我想念什么吗？我宁愿避免使用NAT Gateway ..
下面是我的完整Terraform脚本，它创建RG，Vnet SUbnet，LB规则，最后创建VMSS和jumbpox。
provider "azurerm" {
features {}
subscription_id = var.azure-subscription-id
client_id = var.azure-client-app-id
client_secret = var.azure-client-secret-password
tenant_id = var.azure-tenant-id
}
resource "azurerm_resource_group" "existing_terraform_rg" {
name = "rg-ict-spoke1-001"
location = "westeurope"
#depends_on = [var.rg_depends_on]
}
# Create storage account for boot diagnostics
resource "azurerm_storage_account" "mystorageaccount" {
name = "diag${random_id.randomId.hex}"
resource_group_name = azurerm_resource_group.existing_terraform_rg.name
location = "westeurope"
account_tier = "Standard"
account_replication_type = "LRS"
}
resource "azurerm_virtual_network" "existing_terraform_vnet" {
name = "vnet-spoke1-001"
location = "westeurope"
resource_group_name = azurerm_resource_group.existing_terraform_rg.name
address_space = ["10.0.0.0/16"]
#depends_on = [azurerm_resource_group.existing_terraform_rg]
}
// Subnets
# Create subnet
resource "azurerm_subnet" "spk1-jbx-subnet" {
name = "spk1-jbx-subnet"
resource_group_name = azurerm_resource_group.existing_terraform_rg.name
virtual_network_name = azurerm_virtual_network.existing_terraform_vnet.name
address_prefixes = ["10.0.0.0/24"]
}
resource "azurerm_subnet" "new_terraform_subnet_web" {
name = "snet-webtier-${var.environment}-vdc-001"
resource_group_name = azurerm_resource_group.existing_terraform_rg.name
virtual_network_name = azurerm_virtual_network.existing_terraform_vnet.name
address_prefix = var.webtier_address_prefix
depends_on = [azurerm_virtual_network.existing_terraform_vnet]
}
# Create Network Security Group and rule
resource "azurerm_network_security_group" "generic-nsg" {
name = "generic-nsg"
location = "westeurope"
resource_group_name = azurerm_resource_group.existing_terraform_rg.name
security_rule {
name = "GENERIC-RULE"
priority = 1001
direction = "Inbound"
access = "Allow"
protocol = "Tcp"
source_port_range = "*"
#destination_port_range = "3389"
#destination_port_ranges = "["22","3389","80","8080"]"
destination_port_ranges = ["22","8080","443"]
source_address_prefix = "*"
destination_address_prefix = "*"
}
}
# Connect the security group to the network interface
resource "azurerm_subnet_network_security_group_association" "new_terraform_subnet_web-asso-nsg" {
subnet_id = azurerm_subnet.new_terraform_subnet_web.id
network_security_group_id = azurerm_network_security_group.generic-nsg.id
}
resource "azurerm_subnet_network_security_group_association" "spk1-jbx-subnet-asso-nsg" {
subnet_id = azurerm_subnet.spk1-jbx-subnet.id
network_security_group_id = azurerm_network_security_group.generic-nsg.id
}
# Generate random text for a unique storage account name
resource "random_id" "randomId" {
keepers = {
# Generate a new ID only when a new resource group is defined
resource_group = azurerm_resource_group.existing_terraform_rg.name
}
byte_length = 8
}
resource "azurerm_lb" "new_terraform_lb_web" {
name = "lb-${var.web_lb_name}-${var.environment}-vdc-001"
location = azurerm_resource_group.existing_terraform_rg.location
resource_group_name = azurerm_resource_group.existing_terraform_rg.name
sku = var.lb_Sku
frontend_ip_configuration {
name = "PrivateIPAddress-${var.web_lb_name}"
subnet_id = azurerm_subnet.new_terraform_subnet_web.id
private_ip_address = var.web_lb_private_IP
private_ip_address_allocation = "Static"
}
}
resource "azurerm_lb_backend_address_pool" "new_terraform_bpepool_web" {
resource_group_name = azurerm_resource_group.existing_terraform_rg.name
loadbalancer_id = azurerm_lb.new_terraform_lb_web.id
name = "${var.web_lb_name}-BackEndAddressPool"
}
resource "azurerm_lb_probe" "new_terraform_lb_probe_web" {
resource_group_name = azurerm_resource_group.existing_terraform_rg.name
loadbalancer_id = azurerm_lb.new_terraform_lb_web.id
name = "${var.web_lb_name}-probe-${var.web_lb_probe_protocol}"
protocol = var.web_lb_probe_protocol
request_path = var.web_lb_probe_request_path
port = var.web_lb_probe_port
}
resource "azurerm_lb_rule" "new_terraform_bpepool_web_rule_http" {
resource_group_name = azurerm_resource_group.existing_terraform_rg.name
loadbalancer_id = azurerm_lb.new_terraform_lb_web.id
backend_address_pool_id = azurerm_lb_backend_address_pool.new_terraform_bpepool_web.id
probe_id = azurerm_lb_probe.new_terraform_lb_probe_web.id
disable_outbound_snat = true
name = "new_terraform_bpepool_web_rule_http"
protocol = "Tcp"
frontend_port = 80
backend_port = 80
frontend_ip_configuration_name = "PrivateIPAddress-${var.web_lb_name}"
}
resource "azurerm_lb_rule" "new_terraform_bpepool_web_rule_https" {
resource_group_name = azurerm_resource_group.existing_terraform_rg.name
loadbalancer_id = azurerm_lb.new_terraform_lb_web.id
backend_address_pool_id = azurerm_lb_backend_address_pool.new_terraform_bpepool_web.id
probe_id = azurerm_lb_probe.new_terraform_lb_probe_web.id
disable_outbound_snat = true
name = "new_terraform_bpepool_web_rule_https"
protocol = "Tcp"
frontend_port = 443
backend_port = 443
frontend_ip_configuration_name = "PrivateIPAddress-${var.web_lb_name}"
}
resource "azurerm_windows_virtual_machine_scale_set" "new_terraform_vmss_web" {
depends_on = [azurerm_lb_rule.new_terraform_bpepool_web_rule_http,azurerm_lb_rule.new_terraform_bpepool_web_rule_https]
name = "vmss-001"
resource_group_name = azurerm_resource_group.existing_terraform_rg.name
location = azurerm_resource_group.existing_terraform_rg.location
sku = var.webtier_vmss_sku
instances = var.webtier_vmss_instance_count
admin_password = var.webtier_vmss_admin_password
admin_username = var.webtier_vmss_admin_uname
zone_balance = true
zones = [1,2,3]
upgrade_mode = "Manual"
#automatic_os_upgrade_policy {
# disable_automatic_rollback = false
# enable_automatic_os_upgrade = true
#}
#rolling_upgrade_policy {
# max_batch_instance_percent = 20
# max_unhealthy_instance_percent = 20
# max_unhealthy_upgraded_instance_percent = 5
# pause_time_between_batches = "PT0S"
#}
#health_probe_id = azurerm_lb_probe.new_terraform_lb_probe_web.id
source_image_reference {
publisher = "MicrosoftWindowsServer"
offer = "WindowsServer"
sku = var.webtier_vmss_image_sku
version = "latest"
}
os_disk {
storage_account_type = "Standard_LRS"
caching = "ReadWrite"
}
network_interface {
name = "vmss-001-nic-1"
primary = true
ip_configuration {
name = "vmss-001-nic-1-Configuration"
primary = true
subnet_id = azurerm_subnet.new_terraform_subnet_web.id
load_balancer_backend_address_pool_ids = [azurerm_lb_backend_address_pool.new_terraform_bpepool_web.id]
#load_balancer_inbound_nat_rules_ids = [azurerm_lb_nat_pool.lbnatpool-1.id]
}
}
}
resource "azurerm_virtual_machine_scale_set_extension" "new_terraform_vmss_web_ext_1" {
name = "new_terraform_vmss_web_ext_1"
virtual_machine_scale_set_id = azurerm_windows_virtual_machine_scale_set.new_terraform_vmss_web.id
publisher = "Microsoft.Compute"
type = "CustomScriptExtension"
type_handler_version = "1.9"
settings = <<SETTINGS
{
"fileUris": ["https://raw.githubusercontent.com/Azure-Samples/compute-automation-configurations/master/automate-iis-v2.ps1"]
}
SETTINGS
protected_settings = <<PROTECTED_SETTINGS
{
"commandToExecute": "powershell -ExecutionPolicy Unrestricted -File automate-iis-v2.ps1"
}
PROTECTED_SETTINGS
}
# Create public IPs
resource "azurerm_public_ip" "spk1-jbx-puip" {
name = "spk1-jbx-puip"
location = "westeurope"
resource_group_name = azurerm_resource_group.existing_terraform_rg.name
allocation_method = "Dynamic"
}
# Create network interface
resource "azurerm_network_interface" "spk1-jbx-nic" {
name = "spk1-jbx-nic"
location = "westeurope"
resource_group_name = azurerm_resource_group.existing_terraform_rg.name
ip_configuration {
name = "spk1-jbx-nic-conf"
subnet_id = azurerm_subnet.spk1-jbx-subnet.id
private_ip_address_allocation = "Dynamic"
public_ip_address_id = azurerm_public_ip.spk1-jbx-puip.id
}
}
resource "azurerm_virtual_machine" "spk1-jbx-vm" {
name = "spk1-jbx-vm"
location = "westeurope"
resource_group_name = azurerm_resource_group.existing_terraform_rg.name
network_interface_ids = ["${azurerm_network_interface.spk1-jbx-nic.id}"]
vm_size = "Standard_D2s_v3"
storage_image_reference {
publisher = "MicrosoftWindowsServer"
offer = "WindowsServer"
sku = "2016-Datacenter"
version = "latest"
}
storage_os_disk {
name = "spk1-jbx-vm-mtwin-disk-os"
caching = "ReadWrite"
create_option = "FromImage"
managed_disk_type = "Standard_LRS"
}
os_profile {
computer_name = "spk1-jbx-vm"
admin_username = "demouser"
admin_password = "M0nP@ssw0rd!"
}
os_profile_windows_config {
provision_vm_agent = true
}
}
解决方法
您需要公共负载平衡器来伪装SNAT（PAT）出站流量的端口。您可以按照引用的Azure文档中的说明配置内部和公共LB。
内部标准负载均衡器方案的出站NAT 内部标准负载均衡器，出站NAT不可用 直到明确声明了出站连接。您可以 使用出站规则定义出站连接以创建出站 内部标准负载均衡器后面的VM的连接 这些步骤：1.创建一个公共的Standard Load Balancer。 2.创建一个 后端池并将虚拟机放置到公共负载的后端池中 除内部负载均衡器之外的均衡器。 3.配置 公共负载均衡器上的出站规则，以为 这些虚拟机。
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