add Cloudability's metrics-agent to stage-p01

[filariow]

This PR introduces an ApplicationSet for Cloudability's metrics-agent. The Agent is installed via it's Helm
Chart and it will be initially deployed only in cluster stage-p01.

[filariow]

/hold

[manish-jangra]

I think, we should also have a kustomisation.yaml in components/cloudability-metrics-agent/staging/stone-stage-p01 directory pointing to values file.

[filariow]

I think, we should also have a kustomisation.yaml in components/cloudability-metrics-agent/staging/stone-stage-p01 directory pointing to values file.

I took inspiration from components/tracing/otel-collector/production.
The kustomization.yaml file there is not referencing the values.yaml file, so I thought it's not needed here either.

Also, given that the path field is not used in the ref-source, this should not build what's in the folder so it seems to me it should be fine (cf. https://argo-cd.readthedocs.io/en/stable/user-guide/multiple_sources/#helm-value-files-from-external-git-repository). WDYT?

[manish-jangra]

/lgtm

[manish-jangra]

@filariow lets create the the directory structure like other components

• base
• staging
• production

will be easier to maintain configuration for different configurations for different overlays.

[manish-jangra]

LGTM

[manish-jangra]

/lgtm

[openshift-ci]

New changes are detected. LGTM label has been removed.

[openshift-ci]

@filariow: The following test failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
ci/prow/appstudio-hac-e2e-tests	6451b90	link	false	/test appstudio-hac-e2e-tests

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[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: filariow, manish-jangra, sadlerap

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[openshift-merge-robot]

PR needs rebase.

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[ralphbean]

@filariow this one needs a rebase and conflict resolution for tide to accept it.

[filariow]

thanks @ralphbean, I'm waiting for cloudability's team to guarantee compatibility with OpenShift 4.15 and 4.16 (cloudability/metrics-agent#270). I'll move this PR to draft.