With the events of eventlet removal, Watcher will need
to be adapted to support both modes, eventlet and threading, for
a couple of releases before removing all eventlet code.
This patch adds methods and classes that allow decision engine
modules to create futurist thread pools instead of green thread pools,
based on a environment variable that can be enabled by service.
It moves continuous audit handler instance to decison engine service,
so it can be started together with the main decision engine service.
Adds an environment variable that allows the user to disable
eventlet monkey patching and to use oslo.service threading backend.
Change-Id: I8a8be0a7cebdc44005fd77ec960543828c7da318
Signed-off-by: Douglas Viroel <viroel@gmail.com>
This chanage enabled codespell in precommit and
fixes the existing typos.
A followup commit will enable this in tox and ci.
Change-Id: I0a11bcd5a88247a48d3437525fc8a3cb3cdd4e58
Documentation with details on general concurrency as well as OpenStack
specific libraries.
Describes how different libraries are effectively used across different
Watcher services. This includes describing how futurist is used in the
Decision Engine and how taskflow is used in the Applier.
Finally, this documentation describes how contributors can use the
new DecisionEngineThreadpool effectively and includes examples.
https://docs.openstack.org/futurist/latest/https://docs.openstack.org/taskflow/latest/
Change-Id: Ic1cd1f3733a0e9a239c9b8d49951e1e4ece49f3a
Partially Implements: blueprint general-purpose-decision-engine-threadpool
