如何在虚拟机比例尺集中使用terraform请求天蓝色竞价型实例? [英] How do I request azure spot instances using terraform, in a virtual machine scale set?

问题描述

如果我提出的问题不好，请提前道歉，但我希望在Linux vmss的环境中为请求现货实例提供一些帮助.

这里是参考:

这是他们的示例json，没有任何说明可选参数的位置:

 资源"azurerm_linux_virtual_machine_scale_set"；示例"{名称="example-vmss"resource_group_name = azurerm_resource_group.example.name位置= azurerm_resource_group.example.locationsku ="Standard_F2"；实例= 1admin_username =" adminuser"admin_ssh_key {用户名="adminuser"public_key = file(〜/.ssh/id_rsa.pub")}source_image_reference {发布者=规范"offer ="UbuntuServer"sku ="16.04-LTS"；版本=最新"}os_disk {storage_account_type ="Standard_LRS"；缓存="ReadWrite"；}network_interface {名称=示例"小学=真ip_configuration {名称=内部"小学=真subnet_id = azurerm_subnet.internal.id}}} 

我想将以下两行放在某处:

  priority = var.spot_priorityeviction_policy = var.spot_eviction_policy 

但是当我将它们放在顶层时，会出现此错误:

 错误:预期优先级为[低常规]之一，获得竞价 

(显然，我已经在 terraform.tfvars

中将其设置为"Spot"

我尝试将它们插入各种块中，但是它们给了我意外的参数错误.

我在哪里告诉terraform我想要竞价型实例?

通过传递"Low"来解决该问题.而不是现货"在vmss资源的顶层.

解决方案

我还使用 azurerm_linux_virtual_machine_scale_set 提供并添加 priority 和 eviction_policy 的示例像这样的代码:

 资源"azurerm_linux_virtual_machine_scale_set"；示例"{名称="example-vmss"resource_group_name = azurerm_resource_group.example.name位置= azurerm_resource_group.example.locationsku ="Standard_F2"；实例= 1admin_username =" adminuser"优先级=现货"eviction_policy =取消分配"；admin_ssh_key {用户名="adminuser"public_key = file(〜/.ssh/id_rsa.pub")}source_image_reference {发布者=规范"offer ="UbuntuServer"sku ="16.04-LTS"；版本=最新"}os_disk {storage_account_type ="Standard_LRS"；缓存="ReadWrite"；}network_interface {名称=示例"小学=真ip_configuration {名称=内部"小学=真subnet_id = azurerm_subnet.internal.id}}} 

它工作正常.当我尝试进行规划时，它会显示:

我使用Terraform版本0.12.19和Azurerm版本2.20.因此，您可以使用与我相同的版本，然后重试.

Apologies in advance if I'm posing the question poorly, but I'd appreciate some help requesting spot instances in the context of a linux vmss.

Here is the reference: https://www.terraform.io/docs/providers/azurerm/r/linux_virtual_machine_scale_set.html#identity

and the relevant piece of it:

And here is their example json, without any indication of where the optional arguments go:

resource "azurerm_linux_virtual_machine_scale_set" "example" {
  name                = "example-vmss"
  resource_group_name = azurerm_resource_group.example.name
  location            = azurerm_resource_group.example.location
  sku                 = "Standard_F2"
  instances           = 1
  admin_username      = "adminuser"

  admin_ssh_key {
    username   = "adminuser"
    public_key = file("~/.ssh/id_rsa.pub")
  }

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

  os_disk {
    storage_account_type = "Standard_LRS"
    caching              = "ReadWrite"
  }

  network_interface {
    name    = "example"
    primary = true

    ip_configuration {
      name      = "internal"
      primary   = true
      subnet_id = azurerm_subnet.internal.id
    }
  }
}

I want to put the following two lines somewhere:

priority            = var.spot_priority
eviction_policy     = var.spot_eviction_policy

but when I put them at the top level, I get this error:

Error: expected priority to be one of [Low Regular], got Spot

(obviously I've got it set to "Spot" in the terraform.tfvars

I've tried inserting them in various blocks, but they give me unexpected argument errors.

Where do I tell terraform that I want spot instances??

EDIT: The problem is solved by passing in "Low" rather than "Spot" in the top level of the vmss resource.

解决方案

I also use the example that azurerm_linux_virtual_machine_scale_set provide and add the priority and eviction_policy like this:

resource "azurerm_linux_virtual_machine_scale_set" "example" {
  name                = "example-vmss"
  resource_group_name = azurerm_resource_group.example.name
  location            = azurerm_resource_group.example.location
  sku                 = "Standard_F2"
  instances           = 1
  admin_username      = "adminuser"

  priority = "Spot"
  eviction_policy = "Deallocate"

  admin_ssh_key {
    username   = "adminuser"
    public_key = file("~/.ssh/id_rsa.pub")
  }

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

  os_disk {
    storage_account_type = "Standard_LRS"
    caching              = "ReadWrite"
  }

  network_interface {
    name    = "example"
    primary = true

    ip_configuration {
      name      = "internal"
      primary   = true
      subnet_id = azurerm_subnet.internal.id
    }
  }
}

And it works fine. When I try to plan it, it shows:

I use the Terraform version 0.12.19 and the azurerm version 2.20. So you can use the same version as mine and try again.

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