lifecycle

The cheapest storage class is rarely the cheapest answer. Retrieval pricing, minimum durations and per-transition fees decide whether a lifecycle rule saves money or manufactures waste.

One ForceNew attribute turns an edit into a destroy. Know the schema mechanics, the four lifecycle levers, and why create_before_destroy trades downtime for name collisions.

Three lifecycle arguments influence replacement and drift handling: create_before_destroy, prevent_destroy, and ignore_changes. Each earns its place through an incident story, and each has a failure mode interviewers wait to hear you name.

Two-phase deletion, a controller that purges content, finalizers holding the door. Stuck CRD instances, dead webhooks and GitOps recreates are the real story; standards prevent the ticket.

A Job with a sidecar was broken by design for years: the workload finishes, the proxy does not, and the pod never terminates. Native sidecars fix it by making the container an init container that keeps running.