Support for InfluxDB Metric Source

[ichiong]

We use InfluxDB heavily in our company for metrics and monitoring. It would be nice for Influx to be one of the supported metrics sources for Referee so we can have our Kayenta instance pulling data and doing canary analysis using Influx metrics and use Referee as our visualization tool for analyzing Influx metrics.

I do have a draft PR for this that is ready to go and have been tested internally as well in production: https://github.com/Nike-Inc/referee/pull/456/files

Please let me know if there's anything else you need or if I can go ahead and open the PR for this.

Thank you and I would really appreciate any help!

[jiangha4]

Hi @ichiong , thank you for your interest and contribution to Referee! Please go ahead and open a PR for review. We will look at it as soon as possible within the next couple of weeks. If you could also drop the PR link in this issue, that would be great. Thank you!

[ichiong]

Hello @jiangha4! So sorry for the delay in opening the PR. Here it is for your reference: #456. Please let me know if there's anything else I need to do to get it merged!