Wrong validation foraws_cloudwatch_event_target input_transformer.input_paths maximum size

[kromol]

According to AWS documentation maximum number of items in InputTransformer.InputPathsMap is 100. Provider limits it to 10.

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Terraform CLI and Terraform AWS Provider Version

Terraform v0.13.7

Affected Resource(s)

• aws_cloudwatch_event_target

Expected Behavior

100 items in input_transformer.input_paths should be allowed.

Actual Behavior

Error is thrown:

Error: expected number of items in input_transformer.0.input_paths to be less than or equal to 10, got 27

Steps to Reproduce

Create event target resource and pass more than 10 items in input_paths:

variable "sns_targets" {
  type = list(object({
    sns_topic_arn = string
    input_transformer = object({
      input_paths     = map(string)
      input_templates = string
    })
  }))
  description = "List of SNS topics ARNs"
}

resource "aws_cloudwatch_event_target" "sns_targets" {
  for_each = {
    for index, value in var.sns_targets : index => value
  }

  arn            = each.value.sns_topic_arn
  rule           = aws_cloudwatch_event_rule.event_rule.name
  event_bus_name = "default"

  dynamic "input_transformer" {
    for_each = each.value.input_transformer == null ? [] : [each.value.input_transformer]

    content {
      input_paths    = input_transformer.value.input_paths
      input_template = input_transformer.value.input_templates
    }
  }
}

[anGie44]

Hi @kromol , thank you for raising this issue. Looks like the AWS service has changed since the last time that validation check was added, but it's definitely adjustable within the resource code here:

https://github.com/hashicorp/terraform-provider-aws/blob/main/aws/resource_aws_cloudwatch_event_target.go#L259-L266

MaxMapItems can be increased to 100 👍

Reference: #10912.

[kromol]

Yeah, thanks for the hint
I am going to raise a PR today to fix it

[github-actions]

This functionality has been released in v3.45.0 of the Terraform AWS Provider. Please see the Terraform documentation on provider versioning or reach out if you need any assistance upgrading.

For further feature requests or bug reports with this functionality, please create a new GitHub issue following the template. Thank you!

[github-actions]

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