Create observability-platform-cost-estimate

[Rotfuks]

Introduce new dashboard for estimating observability platform costs.

This PR

• adds/changes/removes etc
• screenshots before:
• screenshots after:

Checklist

• Update changelog in CHANGELOG.md in an end-user friendly language.

[QuantumEnigmaa]

Could you show screenshots from your dashboard pls ? 🙏

[Rotfuks]

sure sure, here's the dashboard @QuantumEnigmaa 

[QuantumEnigmaa]

I have a few remarks & questions :

• On what time period are the increase and decrease displayed ? Is it the interval selected on default
• I guess that you're displaying the average number of nodes to ease the calculation of cost based on how much does a node cost (from its machine type) but that might not be straight forward to understand. Could you maybe add some text below to explain why is this metric displayed ?
• Could you add a "CPU cores" unit for the CPU Usage graph pls ?

[Rotfuks]

@QuantumEnigmaa 

• On what time period are the increase and decrease displayed ? Is it the interval selected on default

Yep, it's just the default interval, I didn't set anything specific. But it makes sense compared to the displayed graph

• I guess that you're displaying the average number of nodes to ease the calculation of cost based on how much does a node cost (from its machine type) but that might not be straight forward to understand. Could you maybe add some text below to explain why is this metric displayed ?

The average number of nodes is just generally all numbers of nodes in the cluster - that's important because some competitors like DataDog and Dynatrace calculate their price based on the amount of nodes monitored. So it's quite straight forward I think :D That's why the second section is just a collection of other metrics that are useful for calculations, but our own cost calculation just needs the first 4 visualisations from the first section

• Could you add a "CPU cores" unit for the CPU Usage graph pls ?

It's in the description, that the number is cpu cores - is that enough for you?

[QuantumEnigmaa]

It's in the description, that the number is cpu cores - is that enough for you?

Yeah I guess it's fine, I'm just nitpicking here :)

some competitors like DataDog and Dynatrace calculate their price based on the amount of nodes monitored

Ok makes sense then.