etcdserver: add livez and ready http endpoints for etcd.

Add two separate probes, one for liveness and one for readiness. The liveness probe would check that the local individual node is up and running, or else restart the node, while the readiness probe would check that the cluster is ready to serve traffic. This would make etcd health-check fully Kubernetes API complient. Signed-off-by: Siyuan Zhang <[email protected]>
etcd-io · Sep 26, 2023 · 0705f0e · 0705f0e
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commit 0705f0e
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diff --git a/server/embed/etcd.go b/server/embed/etcd.go
@@ -744,6 +744,7 @@ func (e *Etcd) serveClients() (err error) {
 	etcdhttp.HandleVersion(mux, e.Server)
 	etcdhttp.HandleMetrics(mux)
 	etcdhttp.HandleHealth(e.cfg.logger, mux, e.Server)
+	e.Server.InstallLivezReadyz(e.cfg.logger, mux)
 
 	var gopts []grpc.ServerOption
 	if e.cfg.GRPCKeepAliveMinTime > time.Duration(0) {