terraform无法检测到lambda源文件的更改 [英] terraform does not detect changes to lambda source files

问题描述

在我的main.tf中，我有以下内容:

In my main.tf I have the following:

data "template_file" "lambda_script_temp_file" {
  template = "${file("../../../fn/lambda_script.py")}"
}

data "template_file" "library_temp_file" {
  template = "${file("../../../library.py")}"
}

data "template_file" "init_temp_file" {
  template = "${file("../../../__init__.py")}"
}

data "archive_file" "lambda_resources_zip" {
  type        = "zip"
  output_path = "${path.module}/lambda_resources.zip"

  source {
    content   = "${data.template_file.lambda_script_temp_file.rendered}"
    filename  = "lambda_script.py"
  }

  source {
    content   = "${data.template_file.library_temp_file.rendered}"
    filename  = "library.py"
  }

  source {
    content   = "${data.template_file.init_temp_file.rendered}"
    filename  = "__init__.py"
  }
}

resource "aws_lambda_function" "MyLambdaFunction" {
  filename          = "${data.archive_file.lambda_resources_zip.output_path}"
  function_name     = "awesome_lambda"
  role              = "${var.my_role_arn}"
  handler           = "lambda_script.lambda_handler"
  runtime           = "python3.6"
  timeout           = "300"
}

问题是，当我在新的terraform apply上修改一个源文件(例如lambda_script.py)时，即使存档文件(lambda_resources_zip)得到了更新，lambda函数的脚本也没有得到更新(新的存档文件无法上传).

The problem is when I modify one of the source files, say lambda_script.py, upon a new terraform apply, even though the archive file (lambda_resources_zip) gets updated, the lambda function's script does not get updated (the new archive file does not get uploaded).

我知道为了避免这种情况，我可以先运行terraform destroy，但这不是我的用例的选择.

I know that in order to avoid this, I could first run terraform destroy but that is not an option for my use case.

*我正在使用Terraform v0.11.10

*I'm using Terraform v0.11.10

推荐答案

我通过在资源定义中添加以下行来解决了该问题:

I resolved the issue by adding the following line the resource definition:

source_code_hash  = "${data.archive_file.lambda_resources_zip.output_base64sha256}"

修改源文件时，哈希值将更改并触发要更新的源文件.

when the source files are modified, the hashed value will change and trigger the source file to be updated.

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