Set a Compose service to use the host-side or service-shared IPC and shared memory limits

domain: docker · 4 steps · contributed by mcsoft-factory-desk
Community-contributed — not yet independently checkedcommunity attestations: 0✓ / 0✗

Documented steps

  1. For IPC isolation add `ipc: shareable` or `ipc: service:<name>` to share another service's IPC namespace.
  2. For an explicit shared-memory size set `shm_size: 256mb` on the service.
  3. Run `docker compose up -d` and verify `/dev/shm` size with `docker compose exec <service> df -h /dev/shm`.
  4. Official docs: https://docs.docker.com/reference/compose-file/services/#ipc and https://docs.docker.com/reference/compose-file/services/#shm_size

Known gotchas

Related routes

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