aws-cloudwatch: Metrics must support 6 new advanced statistics

[j-schwerer]

Describe the feature

As listed on https://docs.aws.amazon.com/AmazonCloudWatch/latest/monitoring/Statistics-definitions.html, CloudWatch metrics now support 12 statistics which can be used at graphing or alarming time. Statistics include trimmed mean, percentile rank, etc. - which come with a syntax similar to that of percentiles.

Use Case

Need to create alarms and graphs using trimmed mean or percentile rank

Proposed Solution

aws-cloudwatch/lib/metric.ts - review comment lines 24-35, replace "percentile" with a more generic "advanced stat" line 392

Implement advanced stat logic in aws-cloudwatch/lib/private/statistic.ts - function parseStatistic
Instead of returning just the percentile value, return the actual syntax p99, and add tm, pr, tc, ts… to the list of supported advanced statistics.

I understand lines 24-35 of metric.ts should update https://docs.aws.amazon.com/cdk/api/v2/docs/aws-cdk-lib.aws_cloudwatch.MetricOptions.html

Other Information

No response

Acknowledgements

• I may be able to implement this feature request
• This feature might incur a breaking change

CDK version used

2.38

Environment details (OS name and version, etc.)

N/A

[peterwoodworth]

Thanks for submitting this, it might be technically possible to do this already, but the documentation certainly isn't updated enough for that

We accept contributions! Check out our contributing guide if you're interested - there's a low chance the team will be able to address this soon but we'd be happy to review a PR 🙂

[github-actions]

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