Chronicle v0.2.0

[AlexMapley]

Background

We jsut recently released the v0.1.0 chronicle chart with #441, and this is a followup adding some additional features and improvements.

Summary

• Adds a configurable terminationGracePeriodSeconds value to our chronicle pods, though we use the standard 30 second period by default so this is functionally a noop
• Fixes a bug in the chronicle config map preventing running pprof
• Updates our chronicel ci values, testing some more edge cases
• Updates our chronicle chart docs a bit as well
• Bumps up the chronicle chart version to 0.2.0

[AlexMapley]

This would cause a http server error: listen tcp: address 3030: missing port in address error log at bootup if you were using the default chart values from 0.1.0

{"level":"info","msg":"starting debug profiling server, listening at 3030","time":"2023-12-05T19:33:53.781Z"}
{"level":"error","msg":"http server error: listen tcp: address 3030: missing port in address","time":"2023-12-05T19:33:53.781Z"}
{"level":"info","msg":"storing metrics in parquet files in S3 at posit-chronicle-dev/v1/metrics","time":"2023-12-05T19:33:53.782Z"}
{"level":"info","msg":"storing metrics in parquet files at chronicle-data/v1/metrics","time":"2023-12-05T19:33:53.782Z"}
...

This was easy to miss as the error won't crash the server, and we were overwriting this value with :3030 in the ci values we used for templating and QA.

[markrtucker]

Why do we have a template for the readme and the readme itself both checked in? Is this maybe a Helm thing? (In my experience, when you are using template files, you generally avoid checking in the rendered files. But I might be missing something here.)

[AlexMapley]

I think we want the README.md files here for readability purposes, otherwise users would have to generate the docs themselves with the just docs command.
We mention to users in https://helm.rstudio.com/ that they should look at the README.md files in this repo, from the github ui they render well too if you look at https://github.com/rstudio/helm/tree/main/charts/posit-chronicle for example:

[markrtucker]

Ah - ok. I didn't quite connect that this was a public. (Too many years working in private/proprietary repos...) Thanks for clarifying!

[AlexMapley]

The README.md.gotmpl template files are able to pull in some shared helm doc markdown components we write in https://github.com/rstudio/helm/blob/main/charts/_templates.gotmpl, which are then shown across all of our chart readmes.

[markrtucker]

Changes look good. I just left one question about the use of the readme template, but that should not block merging.