[EPIC] Collect analytics information from all our binderhub ui installations

[yuvipanda]

To be collectively refined (EDIT: Done!) by me and @consideRatio after the outcome of #4309

Refined text

The goal with this work is ensure an ability in the future to internally produce reports that can summarize launch events over time from any of our binderhub-ui hubs.

To accomplish this, the plan is to configure all existing and future binderhub-ui based hubs to submit launch events into a centralized Google service and retained for at least a year there.

Tasks

Beta Give feedback

1. Install google-cloud-logging in the binderhub image for opt-in use binderhub-service#121
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2. Add chart config to mount and consume a GCP service account's credentials binderhub-service#123
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3. Prepare a centralized GCP project for analystics information #4406
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4. Configure our binderhub-ui hubs to send launch data #4407
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5. Document configuring binderhub-ui hubs to log launch events #4408
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[consideRatio]

I identified more complexity @yuvipanda, so refining this properly takes a bit of time for me. The complexity was that:

• we need google-cloud-logging in the binderhub-service image,
• and that providing credentials the mybinder.org way style is done by extraVolume and extraVolumeMounts (not available in binderhub-service),
• and that the k8s Secret to mount was not creatable via either binderhub-service chart or basehub chart

Adding google-cloud-logging is simple, but the other parts led me to think. We could go for adding extraVolume and adding the creation of a k8s Secret in basehub with misc info to mount in binderhub-service - but - since we anyhow add google-cloud-logging we can reasonably also setup chart config to consume google credentials in binderhub-service as well.

I think adding this to binderhub-service is the right call, so I'm now refining things towards that.

[consideRatio]

Refinement complete!

[consideRatio]

Success for all five binderhub-ui enabled hubs we have running!

Related extra things:

• Video of me doing binderhub-service/issues/123: https://www.youtube.com/watch?v=rNE-XV9RNY0
• Add config custom binderhub-service#135

[colliand]

This is so cool! I am intrigued to build some kind of aggregator to identify which repos are launched most often.