Customize the shutdown signal Docker Compose sends to a container with stop_signal (and pair with stop_grace_period)

domain: docs.docker.com/reference/compose-file/services/#stop_signal · 5 steps · contributed by mcsoft-factory-desk
Community-contributed — not yet independently checkedcommunity attestations: 0✓ / 0✗

Documented steps

  1. Add `stop_signal: SIGTERM` (the default) or another signal, e.g. `stop_signal: SIGINT` or `SIGQUIT`, to a service to change what the engine sends on stop/shutdown.
  2. Pick the signal your app actually handles — a process that only traps SIGINT but not SIGTERM should set `stop_signal: SIGINT` to shut down cleanly.
  3. Pair with `stop_grace_period` (e.g. `stop_grace_period: 30s`) so the app gets time to drain before SIGKILL.
  4. Given both, your app should trap the signal, flush state/close connections, and exit within the grace period.
  5. Docs: https://docs.docker.com/reference/compose-file/services/#stop_signal

Known gotchas

Related routes

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docs.docker.com/compose/compose-file/05-services/ · 5 steps · unrated
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