Author:Sergey Kanzhelev (Google) With Kubernetes 1.24 the gRPC probes functionality entered beta and is available by default.Now you can configure startup, liveness, and readiness probes for your gRPC app without exposing any HTTP endpoint, nor do you need an executable.Kubernetes can natively connect to your your workload via gRPC and query its status.

Some history

It's useful to let the system managing your workload check that the app is healthy, has started OK, and whether the app considers itself good to accept traffic.Before the gRPC support

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