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Certified Kubernetes Application Developer CKAD (Kubernetes v1.35 curriculum) · Domain 3: Application Observability and Maintenance

Liveness, readiness and startup probes; httpGet, tcpSocket, exec and grpc handlers; timing fields

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Last reviewed September 25, 2026 · Leer en español

A running process is not necessarily a healthy one. It might be deadlocked, still loading data, or unable to reach its database. Probes let the kubelet on each node check a container regularly and act on the result. Kubernetes has three kinds, each answering a different question.

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