envoyproxy / envoyproxy/gateway
Add server.live stat to indicate if Envoy Gateway xds server is live/not draining
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area/observability
help wanted
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Description
*Description*:
Currently, the is no utility stat to indicate if xds server (or even entire Envoy Gateway which consists of multiple components) is live or not. One could rely on `process_cpu_seconds_total` but it would be convenient to have a dedicated metrics that also takes draining state into account.
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