feat(cloudwatch): Add CustomWidget

[markussiebert]

This PR introcudes the CustomWidget for Cloudwatch Dashboards

fixes: #17579

based on the work of @dannyber

If you wonder, why only a string typed option was used instead of an lambda.IFunction, the reason is, that this would introduce a circular dependency between lambda -> cloudwatch -> lambda and leads to build errors.

Creating a new package for this tiny feature to work around the circular dependency would be too much of a good thing. Apart from that it could be unintuitive to find the custom widget in a package 'aws-cloudwatch-pattarns' if all other widgets come from 'aws-cloudwatch'.

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache-2.0 license

[gitpod-io]

[knightjoel]

Hi @markussiebert, following this PR with much interest. Have you requested a review from @madeline-k yet? You should be able to click Madeline's avatar just to the right of your original comment on the PR to request a review.

[markussiebert]

Hi @knightjoel - I can't - something I am struggling with. I don't know where to click. But I've already written with @madeline-k on cdk.dev and she promised to review both of my CW PRs. I think she is busy at the moment?!

[madeline-k]

This looks pretty good, I am still looking for documentation of the cloudwatch API for all the properties of custom widgets.

Pull request has been modified.

[knightjoel]

Hi @markussiebert, still following with much interest. Is this ready for another review? Have all of Madeline's comments been addressed?

[markussiebert]

Hi @markussiebert, still following with much interest. Is this ready for another review? Have all of Madeline's comments been addressed?

I hope so :-) I pinged her via cdk.dev - maybe she will review this again - the review request here is open since some time

[madeline-k]

Looks good, @markussiebert! 😄

[mergify]

Thank you for contributing! Your pull request will be updated from master and then merged automatically (do not update manually, and be sure to allow changes to be pushed to your fork).

[aws-cdk-automation]

AWS CodeBuild CI Report

• CodeBuild project: AutoBuildProject89A8053A-LhjRyN9kxr8o
• Commit ID: 6f6cd5b
• Result: SUCCEEDED
• Build Logs (available for 30 days)

Powered by github-codebuild-logs, available on the AWS Serverless Application Repository

[mergify]

Thank you for contributing! Your pull request will be updated from master and then merged automatically (do not update manually, and be sure to allow changes to be pushed to your fork).