Added grafana to playground cluster

[Freedisch]

Notes for Reviewers

This PR fixes add Grafana to the playground cluster
mesh design: https://meshery.layer5.io/catalog/a459be4e-3945-4331-acf1-b9fec90846aa

PS: we need to verify if Prometheus and node exporter are still running in the playground cluster

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[leecalcote]

@Freedisch, will you:

1. confirm that you’re able to provision this infra in Playground (ns monitoring and grafana both present?)
2. confirm that you’re able to update Meshery Server’s Settings to connect to that running instance of Grafana.

[leecalcote]

Prometheus will be exposed on 9090, right?

[leecalcote]

@Freedisch ... following up.

[Freedisch]

Yes, it will be exposed at 9090

[leecalcote]

@Freedisch what Grafana dashboards will be available in this Grafana deployment? We'll want a dashboard that is configured to collect the standard metrics available via Node Exporter.

[vishalvivekm]

@Freedisch Let's discuss this on Meshery Dev call. Please add this as an agenda item in the meeting minutes if you would. :)

[Freedisch]

@leecalcote //

1- I’m able to provision the infra into the playground ✅
2- meshery's server cannot to Grafana, I believe this might be a network issue between my playground and Grafana 🚫 I'm still working on it
3- The charts that will provide Grafana are based on the metrics provided by Prometheus previously scraped from node exporter

Question: is the current deployment of Prometheus in the cluster accessible by Meshery's server? same question for node exporter?

[leecalcote]

@Freedisch I've spoken to this a few times and walked through the Meshery Architecture slide on the Playground's deployment networking. Please refer to that slide. Rephrase your questions in context of that slide, if you have any after studying it.

[Freedisch]

@Freedisch I've spoken to this a few times and walked through the Meshery Architecture slide on the Playground's deployment networking. Please refer to that slide. Rephrase your questions in the context of that slide, if you have any after studying it.

I meant, is there any way we could verify if the Prometheus deployment still running inside the cluster? if not we should redeploy it.

[leecalcote]

When you open Visualizer mode, do you see it?

[Freedisch]

When you open Visualizer mode, do you see it?

I Got it
I think we should have a documentation section for Prometheus setup into the playground

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