Add RHODS Usage and Availability metrics

[anishasthana]

Relevant request and approval can be found at https://docs.google.com/document/d/1P9TbVXA6MnocUAFjQy0Cfs0dd_JZqvnM1Ao44Ken8t8/edit#

• I added CHANGELOG entry for this change.
• No user facing changes, so no entry in CHANGELOG was needed.

[anishasthana]

/retest

[anishasthana]

/retest

[simonpasquier]

out of curiosity in which project do the rules/metrics live?

[anishasthana]

We're working on further consolidating these repos long term, but the rules themselves are defined at https://github.com/red-hat-data-services/odh-deployer/blob/main/monitoring/prometheus/prometheus.yaml#L420-L430.
The service monitor for federation is defined at https://github.com/red-hat-data-services/odh-manifests/blob/master/monitoring/base/rhods-service-monitor.yaml.

[anishasthana]

/retest

[anishasthana]

/retest

[anishasthana]

/retest
Tests seem flaky. Different ones have been failing.

[anishasthana]

/retest

[anishasthana]

/retest

[anishasthana]

/retest

[simonpasquier]

/lgtm

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: anishasthana, simonpasquier

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[anishasthana]

/retest

[anishasthana]

/retest

[anishasthana]

/retest

[anishasthana]

/retest

@simonpasquier what can we do here? Should I just keep retesting until ci passes?

[anishasthana]

/retest

[openshift-ci]

@anishasthana: The following test failed, say /retest to rerun all failed tests:

Test name	Commit	Details	Rerun command
ci/prow/e2e-aws-single-node	c634cc5	link	/test e2e-aws-single-node

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