FinOps tracking: Idle cluster costs increase for GKE autopilot cluster from 3 to 5.5 vCores from 8-12/d and logging project up to $13/d from $10/d after 2 weeks - for core-landing-zone

https://github.com/GoogleCloudPlatform/pubsec-declarative-toolkit/wiki/FinOps

TLDR;
- 4 package LZ runs US $550/month or $400/month with discounts

update 20231014 - see additional random spikes of $5/day for listCluster audit logs - charging storage on the logging project - these are security logs of 61GB and 171GB for other logs
- #561
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Update: 20231007
- There is a sustained use discount that kicks in after 2 weeks that drops the GKE cost from 17/d (14 under SU credit) to 10/d - amounting to a 24% discount

The networking cost is 5.5% of spend (consisting of Network Intelligence Center and the PSC endpoint)
The PSC endpoint (networking) is 2.2% of spend


Ongoing cost 16.35/day until sustained use kicks in
13/d under SU credit

13.65/d
to 10/d

A 2nd KCC cluster only has core-landing-zone deployed (logging and dns projects) - not the other 3 core, client packages yet

Logs are increasing - up to $5/d after 2 weeks - all of a sudden 3 days ago

GKE cluster from 8.60 to 12.25/d after 2 weeks

Todo: fmichaelobrien - get rate of change equation (derivative) - for logs/day increase
determine why the autopilot cluster nodes increased from 3 to 4.5 under no load or deployments