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docs: api: add note about websocket attach streams

Slightly make the change in API v1.42 more visible, and add a snippet
about what users should do to preserve the pre-v1.41 behavior.

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
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Sebastiaan van Stijn 2022-05-18 11:02:14 +02:00
parent 4cac624fef
commit d4a0a422da
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@ -87,8 +87,13 @@ keywords: "API, Docker, rcli, REST, documentation"
* The `Volume` type, as returned by `Added new `ClusterVolume` fields
* Added a new `PUT /volumes{name}` endpoint to update cluster volumes (CNI).
Cluster volumes are only supported if the daemon is a Swarm manager.
* `/containers/{name}/attach/ws` endpoint only attach to configured streams
according to `stdin`, `stdout` and `stderr` parameters.
* `GET /containers/{name}/attach/ws` endpoint now accepts `stdin`, `stdout` and
`stderr` query parameters to only attach to configured streams.
NOTE: These parameters were documented before in older API versions, but not
actually supported. API versions before v1.42 continue to ignore these parameters
and default to attaching to all streams. To preserve the pre-v1.42 behavior,
set all three query parameters (`?stdin=1,stdout=1,stderr=1`).
## v1.41 API changes