Use the (new) plugin fixtures for plugin tests rather than pulling
plugins from hub.
This removes the restriction for platforms/archs since plugin binaries
get built in the test environment.
Future work would be to add test plugins for the various subsystems so
tests that are actually using plugins (e.g. volumes, networks) can be
ported to use the fixtures as well.
Signed-off-by: Brian Goff <cpuguy83@gmail.com>
Enables other subsystems to watch actions for a plugin(s).
This will be used specifically for implementing plugins on swarm where a
swarm controller needs to watch the state of a plugin.
Signed-off-by: Brian Goff <cpuguy83@gmail.com>
Yong Tang