resource/aws_cloudwatch_log_metric_filter: support dimensions

[roberth-k]

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Description

CloudWatch Logs Metric Filters now support up to 3 dimensions, which are specified in pattern format. It's a new field of metric_transformation.

Metric Filters with dimensions don't allow the default value to be set.

AWS's documentation leaves this unclear, but it's worth testing whether constant values are also supported by this feature.

Requires Go SDK v1.38.46 (released on 2021-05-24).

New or Affected Resource(s)

• aws_cloudwatch_log_metric_filter

Potential Terraform Configuration

resource "aws_cloudwatch_log_metric_filter" "example" {
  name           = "Example"
  pattern        = ""
  log_group_name = aws_cloudwatch_log_group.example.name

  metric_transformation {
    name       = "EventCount"
    namespace  = "Example"
    value      = "1"
    dimensions = {
      // the value is a metric filter pattern
      EventType = "$.eventType"
    }
  }
}

References

• Announcement: https://aws.amazon.com/about-aws/whats-new/2021/05/amazon-cloudwatch-logs-announces-dimension-support-for-metric-filters/
• Documentation: https://docs.aws.amazon.com/en_us/AmazonCloudWatch/latest/logs/FilterAndPatternSyntax.html
• API: https://docs.aws.amazon.com/AmazonCloudWatchLogs/latest/APIReference/API_MetricTransformation.html

[roberth-k]

Implemented in: #19625

[ghost]

This has been released in version 3.44.0 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 for triage. Thanks!

[github-actions]

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