使用Terraform的GCP计算引擎

Question

如何使用Terraform在GCP计算引擎中提供多个实例。我已经尝试在资源块中使用'count‘参数。但是terraform没有提供多个实例，因为具有特定名称的VM在执行第一次计数时只创建一次。

provider "google" {
version = "3.5.0"
credentials = file("battleground01-5c86f5873d44.json")
project = "battleground01"
region  = "us-east1"
zone    = "us-east1-b"
}

variable "node_count" {
default = "3"
}


resource "google_compute_instance" "appserver" {
count = "${var.node_count}"
name = "battleground"
machine_type = "f1-micro"


boot_disk {
initialize_params {
image = "debian-cloud/debian-9"
}
}

network_interface {
network = "default"
}

}

Answer 1

为了使其工作，您必须对命名计算实例的方式做一点小小的更改：

provider "google" {
  version     = "3.5.0"
  credentials = file("battleground01-5c86f5873d44.json")
  project     = "battleground01"
  region      = "us-east1"
  zone        = "us-east1-b"
}

variable "node_count" {
  type    = number
  default = 3
}


resource "google_compute_instance" "appserver" {
  count        = var.node_count
  name         = "battleground-${count.index}"
  machine_type = "f1-micro"


  boot_disk {
    initialize_params {
      image = "debian-cloud/debian-9"
    }
  }

  network_interface {
    network = "default"
  }

}

在使用count元参数时，访问数组索引的方法是使用count.index属性1。您还将node_count变量默认值设置为字符串，即使它可能被Terraform转换为数字，请确保使用正确的变量类型。

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