Terraform：遵守限制错误

Question

在 terraform 中，尝试将 S3 存储桶作为我的 lambda 触发器并授予权限。对于这个用例，创建 S3 资源并尝试在触发逻辑中引用该 lambda 函数。但是当我引用代码失败并出现以下错误时。

# Creating Lambda resource


resource "aws_lambda_function" "test_lambda" {
  filename      = "output/welcome.zip"
  function_name = var.function_name
  role          = var.role_name
  handler       = var.handler_name
  runtime       = var.run_time
}



# Creating s3 resource for invoking to lambda function



resource "aws_s3_bucket" "bucket" {
  bucket = "source-bucktet-testing"
  acl    = "private"

  tags = {
    Name        = "source-bucktet-testing"
    Environment = "Dev"
  }
}


# Adding S3 bucket as trigger to my lambda and giving the permissions


resource "aws_s3_bucket_notification" "aws-lambda-trigger" {
  bucket = "aws_s3_bucket.bucket.id"
  lambda_function {
    lambda_function_arn = "aws_lambda_function.test_lambda.arn"
    events              = ["s3:ObjectCreated:*"]
    filter_prefix       = "file-prefix"
    filter_suffix       = "file-extension"
}
}
resource "aws_lambda_permission" "test" {
  statement_id  = "AllowS3Invoke"
  action        = "lambda:InvokeFunction"
  function_name = "aws_lambda_function.test_lambda.function_name"
  principal = "s3.amazonaws.com"
  source_arn = "arn:aws:s3:::aws_s3_bucket.bucket.id"
}

错误信息：

Answer 1

为function_name 传递给aws_lambda_function 资源的值无效。 AWS Lambda 函数名称只能包含字母、数字、连字符或下划线，不能包含空格。您需要更改 var.function_name 的值以符合这些限制。

Answer 2

您的var.function_name 必须无效。

here 与 ARN 一起解释了允许的函数名称格式：

The length constraint applies only to the full ARN. If you specify only the function name, it is limited to 64 characters in length.

Type: String

Length Constraints: Minimum length of 1. Maximum length of 140.

Pattern: (arn:(aws[a-zA-Z-]*)?:lambda:)?([a-z]{2}(-gov)?-[a-z]+-\d{1}:)?(\d{12}:)?(function:)?([a-zA-Z0-9-_]+)(:(\$LATEST|[a-zA-Z0-9-_]+))?