错误：元素类型必须全部匹配才能转换为列表地形

Question

我有一个带有以下variable.tf的terraform模块。我正在为启动模板创建一个模块，其中包含实例类型和实例属性的选项。

变量.tf

variable "ec2_launch_template" {
  type = list(object({
    name                     = string
    image_id                 = string
    instance_type            = optional(string)
    key_name                 = string
    lt_security_group_names = list(string)
    user_data = string
    default_version = number
    iam_instance_profile_arn = string
    core_count = optional(number)
    threads_per_core = optional(number)
    instance_requirements = optional(list(object({
            cpu_max = optional(number)
            cpu_min = optional(number)
            memory_max = optional(number)
            memory_min = optional(number)
    })))
    ebs_volume = optional(list(object({
      device_name = optional(string)

            volume_type = optional(string)
            volume_size = optional(number)
            snapshot_id  = optional(string)
            kms_key_arn = optional(string)
            encrypted = optional(bool)
            ebs_block_delete_on_termination = optional(bool)
            iops     = optional(number)
            throughput  = optional(number)
    })))

    tags                     = map(string)
  }))
  description = "EC2 launch template to create, with their properties"
  default     = []
}

我使用的.tfvars如下

.tfvars

ec2_launch_template = [
  {
    "core_count": "3",
    "default_version": "1",
    "ebs_volume": [],
    "iam_instance_profile_arn": "arn:aws:iam::114833826347:instance-profile/testing-ec2-role-manoj",
    "image_id": "ami-05637405f4b0773e4",
    "instance_requirements": [],
    "instance_type": "t2.medium",
    "key_name": "RDSTEST",
    "lt_security_group_names": [
      "RDP"
    ],
    "name": "testtemplate6",
    "tags": {
      "Name": "testtemplate6"
    },
    "threads_per_core": "2",
    "user_data": "testdata.sh"
  },
  {
    "core_count": "4",
    "default_version": "1",
    "ebs_volume": [
      {
        "device_name": "/dev/sdb",
        "ebs_block_delete_on_termination": false,
        "encrypted": true,
        "iops": "10000",
        "kms_key_arn": "arn:aws:kms:us-east-1:114833826347:key/7ed65523-f8ec-40f1-889e-ee65f7e58172",
        "snasphot_id": "snap-00a70b80c54bb6af5",
        "throughput": "125",
        "volume_size": "50",
        "volume_type": "gp3"
      }
    ],
    "iam_instance_profile_arn": "arn:aws:iam::114833826347:instance-profile/testing-ec2-role-manoj",
    "image_id": "ami-05637405f4b0773e4",
    "instance_requirements": [
      {
        "cpu_max": "3",
        "cpu_min": "2",
        "memory_max": "80",
        "memory_min": "20"
      }
    ],
    "instance_type": null,
    "key_name": "RDSTEST",
    "lt_security_group_names": [
      "RDP"
    ],
    "name": "testtemplate5",
    "tags": {
      "Name": "testtemplate5"
    },
    "threads_per_core": "2",
    "user_data": "testdata.sh"
  }
]

我们收到以下错误：

元素类型必须全部匹配才能转换为列表。

为了调试，我们尝试将变量类型设置为any。它仍然给出同样的问题。非常感谢任何帮助。

Answer 1

1. 数字类型的变量：

在您的定义中，所有已声明为

optional(number)

的变量，它们的值都作为字符串传递，而不应该这样定义：

"core_count": 4,

对于类型为 number 的所有其他变量来说，这应该是相同的。

2. 错别字：

在您的 tfvars 文件中，snasphot_id 中有一个拼写错误，需要更改为 snapshot_id。

由于您没有提供发生错误的确切行，我认为这些是您的 tfvar 遇到的主要问题，并且您的输入应该看起来更像这样：

ec2_launch_template = [
  {
    "core_count": 3,
    "default_version": 1,
    "ebs_volume": [],
    "iam_instance_profile_arn": "arn:aws:iam::114833826347:instance-profile/testing-ec2-role-manoj",
    "image_id": "ami-05637405f4b0773e4",
    "instance_requirements": [],
    "instance_type": "t2.medium",
    "key_name": "RDSTEST",
    "lt_security_group_names": ["RDP"],
    "name": "testtemplate6",
    "tags": {"Name": "testtemplate6"},
    "threads_per_core": 2,
    "user_data": "testdata.sh"
  },
  {
    "core_count": 4,
    "default_version": 1,
    "ebs_volume": [
      {
        "device_name": "/dev/sdb",
        "ebs_block_delete_on_termination": false,
        "encrypted": true,
        "iops": 10000,
        "kms_key_arn": "arn:aws:kms:us-east-1:114833826347:key/7ed65523-f8ec-40f1-889e-ee65f7e58172",
        "snapshot_id": "snap-00a70b80c54bb6af5",
        "throughput": 125,
        "volume_size": 50,
        "volume_type": "gp3"
      }
    ],
    "iam_instance_profile_arn": "arn:aws:iam::114833826347:instance-profile/testing-ec2-role-manoj",
    "image_id": "ami-05637405f4b0773e4",
    "instance_requirements": [
      {
        "cpu_max": 3,
        "cpu_min": 2,
        "memory_max": 80,
        "memory_min": 20
      }
    ],
    "instance_type": null,
    "key_name": "RDSTEST",
    "lt_security_group_names": ["RDP"],
    "name": "testtemplate5",
    "tags": {"Name": "testtemplate5"},
    "threads_per_core": 2,
    "user_data": "testdata.sh"
  }
]