release-22.2:Backport!6807

Merged Andrey Vertiprahov requested to merge cherry-pick-dc6f61b7 into release-22.2

DCN.DCWL.get_metrics. Convert to flot.

See merge request !6807 (merged)

(cherry picked from commit dc6f61b7)

a3b734c1 DCN.DCWL.get_metrics. Convert to flot.

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