release-20.2:Backport!4022

Merged MaksimSmile13 requested to merge cherry-pick-73361ef3 into release-20.2

Add metrics for Gate.

See merge request !4022 (merged)

(cherry picked from commit 73361ef3)

abc9181f Add metrics for Gate. e73e799a Add VPN IPSec ddash. f64b1fde fix black

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