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Docker · Option

healthcheck

HEALTHCHECK tells Docker how to test whether a container is working. Docker tracks starting, healthy, and unhealthy states from the command's results.

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Syntax

HEALTHCHECK [OPTIONS] CMD command
HEALTHCHECK NONE

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  • FROM
  • CMD
  • ENTRYPOINT
  • healthcheck
  • service_healthy

Source: Dockerfile reference. Checked 2026-11-03.