Terraform：因遵守限制而出错

问题描述

在terraform中，尝试将S3存储桶作为我的lambda的触发器并提供权限。对于此用例，创建S3资源并尝试在触发逻辑中引用该lambda函数。但是，当我引用代码失败时，出现以下错误。

# 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"
}

错误消息：

解决方法

传递给aws_lambda_function的{​​{1}}资源的值无效。 AWS Lambda函数名称只能包含字母，数字，连字符或带下划线的空格。您需要更改function_name的值以符合这些限制。

,

您的var.function_name必须无效。

here和ARN一起说明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-_]+))?