Right now getting logs from a service with an attached TTY does not
work. The behavior was undefined and caused the command to hang and
strange messages to occur in the daemon logs.
This returns errors, both deep in the swarmkit adapter (to guard against
undefined behavior, which is Bad) and in the daemon (to tell users that
the thing they're asking for is not possible).
Signed-off-by: Drew Erny <drew.erny@docker.com>
Upstream-commit: 37ae1ef0ffcf8605daeaf41440da774370377a6d
Component: engine