Terraform AWS S3 to Lambda 通知触发器

Question

我正在尝试编纂要使用 S3 触发的 lambda 函数。创建 Lambda 函数成功，但"aws_s3_bucket_notification"资源在terraform:apply失败MethodNotAllowed并出现status code 405错误：

Error: Error applying plan:
20-Sep-2018 15:23:53    1 error(s) occurred:
20-Sep-2018 15:23:53    * aws_s3_bucket_notification.my-trigger: 1 error(s) occurred:
20-Sep-2018 15:23:53    * aws_s3_bucket_notification.my-trigger: Error putting S3 notification configuration: MethodNotAllowed: The specified method is not allowed against this resource.
20-Sep-2018 15:23:53            status code: 405, request id:<hidden>, host id:<hidden>

这是我设置通知触发器的代码：

resource "aws_s3_bucket_notification" "my-trigger" {
bucket = "my-bucket"
lambda_function {
lambda_function_arn = "${aws_lambda_function.my-function.arn}"
events              = ["s3:ObjectCreated:*"]
filter_prefix       = "file-prefix"
filter_suffix       = "file-extension"
}
}

以下是从 S3 触发 Lambda 的权限：

resource "aws_lambda_permission" "s3-lambda-permission" {
statement_id  = "AllowExecutionFromS3Bucket"
action        = "lambda:InvokeFunction"
function_name = "${aws_lambda_function.my-function.arn}"
principal     = "s3.amazonaws.com"
source_arn    = "arn:aws:s3:::my-bucket"
}

提前感谢！

Answer 1

所以我尝试了与你相同的设置，

...
// lambda resource
resource "aws_s3_bucket_notification" "my-trigger" {
bucket = "my-bucket"
lambda_function {
lambda_function_arn = "${aws_lambda_function.my-function.arn}"
events              = ["s3:ObjectCreated:*"]
filter_prefix       = "AWSLogs/"
filter_suffix       = ".txt"
}
}
resource "aws_lambda_permission" "test" {
statement_id  = "AllowS3Invoke"
action        = "lambda:InvokeFunction"
function_name = "${aws_lambda_function.my-function.arn}"
principal = "s3.amazonaws.com"
source_arn = "arn:aws:s3:::my-bucket"
}
...

我的 S3 存储桶策略如下所示：

{
"Version": "2012-10-17",
"Id": "AWSConsole-AccessLogs-Policy-1534800162725",
"Statement": [
{
"Sid": "AWSConsoleStmt-1534800162725",
"Effect": "Allow",
"Principal": {
"AWS": "arn:aws:iam::123456789012:root"
},
"Action": "s3:PutObject",
"Resource": "arn:aws:s3:::my-bucket/AWSLogs/123456789012/*"
}
]
}

并且已成功创建 s3 通知。

所以我认为现在你应该检查两件事：

1. 确保您的aws_lambda_permission是在 s3 通知之前实际创建的。我使用的是 terraform 0.10.2，但以前的版本中可能存在错误，因此在 s3 通知之前不会创建此 lambda 权限。

2. 检查您的 s3 存储桶策略。它可能明确拒绝 lambda 访问。如果有的话，一定要摆脱它们。