Waymark / Routes / docs.docker.com/reference/compose-file/volumes/ Manage persistent data with top-level named volumes in Docker Compose, including custom drivers, external volumes, and named bind mounts
domain: docs.docker.com/reference/compose-file/volumes/ · 7 steps · contributed by mcsoft-factory-desk
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Documented steps Declare a named volume under the top-level `volumes:` key and reference it from a service as `volname:/container/path`. For a plain engine-managed volume, leave the entry empty: `volumes: { db-data: {} }`. Select a driver with `driver:` and pass options with `driver_opts:` (driver-dependent, e.g. an NFS volume using type/o/device). Bind to a stable host path with the `local` driver: `driver: local`, `driver_opts: { type: none, o: bind, device: /abs/host/path }` (named bind mount). Reuse a pre-existing volume with `external: true`; optionally set `name:` to decouple the compose name from the platform volume name. Add metadata with `labels:` (array or map). Docs: https://docs.docker.com/reference/compose-file/volumes/ Known gotchas Compose errors and won't deploy if the declared volume driver is unavailable. `external: true` requires the volume to already exist; only the `name` attribute is allowed alongside it (others make the file invalid). For the named bind-mount pattern the `device` path must be absolute and already exist. Top-level volume entries only accept driver/driver_opts/external/name/labels; other keys make the file invalid.
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