Allow configuration of the log level for Alertmanager in the CMO configmap

[arajkumar]

Signed-off-by: Arunprasad Rajkumar arajkuma@redhat.com

This PR provides a way to the user to set alertmanager logLevel as described in the openshift doc.

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

[openshift-ci]

Skipping CI for Draft Pull Request.
If you want CI signal for your change, please convert it to an actual PR.
You can still manually trigger a test run with /test all

[arajkumar]

/test all

[arajkumar]

/retest

[paulfantom]

/lgtm

/retest

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: arajkumar, paulfantom

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• OWNERS [arajkumar,paulfantom]

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[openshift-bot]

/retest

Please review the full test history for this PR and help us cut down flakes.

[openshift-ci]

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

Test name	Commit	Details	Rerun command
ci/prow/e2e-aws-single-node	37e1071	link	/test e2e-aws-single-node

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[openshift-bot]

/retest

Please review the full test history for this PR and help us cut down flakes.