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Kubernetes · Concept

Readiness probe

Kubernetes probes let the kubelet check container health. Startup protects slow initialization, liveness triggers restarts for stuck containers, and readiness controls whether Services send traffic.

Last updated

Since
v1.27 for stable gRPC probes; v1.28 for stable probe-level t

Syntax

startupProbe: {...}
livenessProbe: {...}
readinessProbe: {...}

In-depth API docs are only for subscribers: parameters, examples, common mistakes and interview practice.

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  • startupProbe
  • livenessProbe
  • readinessProbe
  • exec
  • grpc
  • httpGet
  • tcpSocket
  • failureThreshold

Source: Liveness, Readiness, and Startup Probes. Checked 2026-11-03.