The parks department wants the Docker Engine itself to mark a running recreation-API container unhealthy when its local probe fails. Which image-level feature provides that hook?
Select an answer to reveal the explanation.
Short Explanation
HEALTHCHECK is the image’s way of asking “is this process still useful?” The Engine probes and stamps unhealthy when the answer is no. Orchestrator probes come later; this is the Docker-native hook.
Full Explanation
A HEALTHCHECK in the Dockerfile or image config instructs the Docker Engine to run a probe against the running process and mark the container unhealthy when the probe fails. Kubernetes liveness and readiness probes are orchestrator concerns and are not substitutes for understanding the Docker-native HEALTHCHECK. Monitoring Object Storage or omitting any probe does not give the Engine that status.