Question

我在AWS管理控制台中创建了一个AWS资源。然后我运行terraform import将AWS资源导入Terraform。现在我有了这个terraform.tfstate文件。但是如何将其转换回Terraform配置文件？

Answer 1

正如terraform import docs解释的那样，目前Terraform只会将资源导入您的州档案，并且不会为您生成配置。

如果您在没有定义资源的情况下尝试此操作，Terraform将抛出一个错误，告诉您定义资源，甚至提供一个简单的例子：

Error: resource address "aws_instance.foo" does not exist in the configuration.

Before importing this resource, please create its configuration in the root module. For example:

resource "aws_instance" "foo" {
  # (resource arguments)
}

如果您要将该配置放入.tf文件中以供Terraform使用，则应该导入正常但计划会告诉您它缺少必填字段：

Error: aws_instance.foo: "ami": required field is not set

Error: aws_instance.foo: "instance_type": required field is not set

如果您随后添加了这些必填字段并再次运行计划，Terraform将显示您导入的资源与配置要应用的更改之间的差异。您可能希望返回到您的配置并对齐这些，以便您的计划为空，然后应用它。此时，Terraform最初创建了资源，然后将其作为资源生命周期的一部分进行管理。

Answer 2

您可以使用terraform show命令生成tf文件的原型，如下所示：

# terraform show

命令输出为：

# tencentcloud_instance.ajaxhe_ins:
resource "tencentcloud_instance" "ajaxhe_ins" {
    allocate_public_ip                      = true
    availability_zone                       = "ap-hongkong-2"
    create_time                             = "2020-01-23T11:09:28Z"
    expired_time                            = "2020-05-24T09:41:36Z"
    id                                      = "ins-59xsw9ji"
    image_id                                = "img-31tjrtph"
    instance_charge_type                    = "PREPAID"
    instance_charge_type_prepaid_renew_flag = "NOTIFY_AND_MANUAL_RENEW"
    instance_name                           = "centos-1GB--2170"
    instance_status                         = "RUNNING"
    instance_type                           = "S2.SMALL1"
    internet_charge_type                    = "BANDWIDTH_PREPAID"
    internet_max_bandwidth_out              = 1
    private_ip                              = "172.18.1.0"
    project_id                              = 0
    public_ip                               = "129.173.115.221"
    running_flag                            = true
    security_groups                         = [
        "sg-lxlzf8fn",
    ]
    subnet_id                               = "subnet-3a05z4r3"
    system_disk_id                          = "disk-b0p7allu"
    system_disk_size                        = 50
    system_disk_type                        = "CLOUD_PREMIUM"
    tags                                    = {}
    vpc_id                                  = "vpc-g3q13u9g"
}

然后，删除不可更改的配置，例如：id，public_ip，instance_status等。

最终的main.tf文件可能如下所示：

# tencentcloud_instance.ajaxhe_ins:
resource "tencentcloud_instance" "ajaxhe_ins" {
    allocate_public_ip                      = true
    availability_zone                       = "ap-hongkong-2"
    create_time                             = "2020-01-23T11:09:28Z"
    image_id                                = "img-31tjrtph"
    instance_charge_type                    = "PREPAID"
    instance_charge_type_prepaid_renew_flag = "NOTIFY_AND_MANUAL_RENEW"
    instance_name                           = "centos-1GB--2170"
    instance_status                         = "RUNNING"
    instance_type                           = "S2.SMALL1"
    internet_charge_type                    = "BANDWIDTH_PREPAID"
    internet_max_bandwidth_out              = 1
    private_ip                              = "172.18.1.0"
    project_id                              = 0
    running_flag                            = true
    security_groups                         = [
        "sg-lxlzf8fn",
    ]
    subnet_id                               = "subnet-3a05z4r3"
    system_disk_id                          = "disk-b0p7allu"
    system_disk_size                        = 50
    system_disk_type                        = "CLOUD_PREMIUM"
    tags                                    = {}
    vpc_id                                  = "vpc-g3q13u9g"
}

如何将terraform.tfstate转换为配置文件？

2 个答案: