Interview Q&A / Docker & Kubernetes
Docker & Kubernetes interview questions
Images, containers, Dockerfiles, pods and deployments, from first principles.
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- What is the difference between liveness, readiness and startup probes in Kubernetes?
A liveness probe asks "is this container stuck?" and Kubernetes restarts it if the probe keeps failing. A readiness probe asks "can it take traffic right now?" and a failing Pod is removed from Service load balancing without a restart. A startup probe gives slow-starting apps time to boot before the other probes begin.
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