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Kubernetes · Concept

Liveness probe

Kubernetes probes let the kubelet check container health. Startup probes allow initialization, liveness probes trigger restarts for unhealthy containers, and readiness probes control whether a Pod receives Service traffic.

Last updated

Since
v1.27 for stable gRPC probes

Syntax

spec.containers[].startupProbe | spec.containers[].livenessProbe | spec.containers[].readinessProbe

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  • Startup probe
  • Readiness probe
  • kubelet
  • Pod restartPolicy
  • Kubernetes Service

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