Removed creating separate extension manager for flow extension.
Instead, have made flow extension using the same extension manager
instance which is initialized in agent. It fixes circular
extension loading in stevedore.
Closes-Bug: #1316145
Change-Id: Id339f1876168a41ca43ba7473f3ff6949a233ef3
Prior to the (sync|async)_command decorators, extension methods had to
construct command results themselves, which required that they have
the name of the command being executed.
When the async_command decorator was introduced, we wanted to maintain
the current command interface, so that a command could be made
asynchronous simply by adding the decorator.
The introduction of the sync_command decorator allows us to satisfy
this objective, without requiring decorated methods to accept a
command_name. This patch modifies both decorators to no longer pass
the command_name argument, and modifies existing command methods not
to expect one.
Closes-Bug: #1308021
Change-Id: I1b33bb7519588cdcb79c6f4d2b10c1e5e8c0cca3
Move extensions under an ironic_python_agent.extensions module. This
change also moves the @async_command() decorator into the base
extension module.
Change-Id: I4021fcc33a30f3460a31bca44a4bf776cd53d488
