Pull status from other services

[jpatters]

ie: My service relies on GitHub. It would be nice to be able to show (with a link to their status page) the status of GitHub automatically.

[ks888]

Thank you for the suggestion. Yes, many services depend on other services today and so it would be great if we can show the status of those services, too.

There are actually many such services and so we may need some pluggable mechanism which enables sys admins to support new services after all, but we can start with simple integration with the GitHub and some AWS services at first.

[judge2020]

Pulling from CloudWatch would be a plus!