S3 lifecycle_rule transition with days = 0 has MalformedXML

[devonbleak]

Terraform Version

$ terraform -v
Terraform v0.9.8

Affected Resource(s)

• aws_s3_bucket

Terraform Configuration Files

resource "aws_s3_bucket" "bucket" {
  bucket = "bucket"
  acl    = "private"

  lifecycle_rule {
    id      = "zero-day-glacier"
    prefix  = ""
    enabled = true

    transition {
      days          = 0
      storage_class = "GLACIER"
    }
  }
}

Debug Output

https://gist.github.com/devonbleak/ae05399e61db6c9e94bc2b7eb3a37bce

Expected Behavior

Lifecycle policy applied to bucket with transition to glacier after 0 days.

Actual Behavior

Error putting S3 lifecycle: MalformedXML: The XML you provided was not well-formed or did not validate against our published schema
status code: 400, request id: EXAMPLE, host id: EXAMPLE

Steps to Reproduce

1. terraform apply

Looking at the XML, the required element is missing entirely. As this is an optional parameter (have to specify either days or date) my hunch is that the 0 is evaluating to false so the element isn't being sent. Also tried setting days = "0" as a string with the same result. This may actually be more of a core issue with needing a way to represent a literal 0 that's different from boolean false.

[ghost]

I'm going to lock this issue because it has been closed for 30 days ⏳. This helps our maintainers find and focus on the active issues.

If you feel this issue should be reopened, we encourage creating a new issue linking back to this one for added context. Thanks!