为什么我会得到“zip 的内容不是有效的 UTF-8；"在 Terraform 中使用 filebase64sha256 时? [英] Why do I get "contents of zip are not valid UTF-8;" when using filebase64sha256 in Terraform?

问题描述

我正在尝试使用 Terraform 创建一个 AWS lambda 函数，如指定 这里:

I am trying to create an AWS lambda function using Terraform, as specified here:

resource "aws_lambda_function" "dev" {
  role             = aws_iam_role.dev.arn
  handler          = var.handler
  runtime          = var.runtime
  filename         = "lambda.zip"
  function_name    = var.function_name
  source_code_hash = filebase64sha256(file("lambda.zip"))
}

但是它会抛出一个错误:

But it throws an error:

Call to function "file" failed: contents of lambda.zip are not valid UTF-8; use the filebase64 function to obtain the Base64 encoded contents or the other file
│ functions (e.g. filemd5, filesha256) to obtain file hashing results instead.

我也尝试过 "${base64sha256(file("lambda.zip"))}" 但我仍然遇到同样的错误.

I've also tried "${base64sha256(file("lambda.zip"))}" but I still get the same error.

推荐答案

Terraform 中所有以 file 开头的函数都接受文件路径，而不是内容.

All functions in Terraform starting with file take in the file path, not the contents.

这里有两个问题:

1. 您正在使用 file 读取二进制文件 - 它只接受 UTF-8 文本

1. You're using file to read a binary file - it only accepts UTF-8 text

当 filebase64sha256 已经处理了 file (file 前缀是它接受一个文件路径)

You're using file when that is already handled by filebase64sha256 (the file prefix is the hint that this accepts a file path)

文档突出了这两个方面:

这类似于 base64sha256(file(filename))，但因为 file 只接受 UTF-8 文本，它不能用于为二进制文件创建哈希.

This is similar to base64sha256(file(filename)), but because file accepts only UTF-8 text it cannot be used to create hashes for binary files.

删除对 file(...) 的调用，它应该可以工作:

Remove the call to file(...) and it should work:

resource "aws_lambda_function" "dev" {
  role             = aws_iam_role.dev.arn
  handler          = var.handler
  runtime          = var.runtime
  filename         = "lambda.zip"
  function_name    = var.function_name
  source_code_hash = filebase64sha256("lambda.zip")
}

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