watcher-specs/specs/pike/implemented/suspended-audit-state.rst
Alexander Chadin 8e4edeb3bc Move Pike specs as implemented
This patch set moves all Pike implemented specs
to implemented folder.

Change-Id: I08e236e61c37e721cf92479cfd0f47e9b92dbfd7
2017-08-03 16:39:43 +03:00

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=====================
Suspended audit state
=====================
https://blueprints.launchpad.net/watcher/+spec/suspended-audit-state
Problem description
===================
If an audit with continuous mode needs to be stopped temporarily in order
to execute an audit and then restarted, it will have to be deleted
and recreated.
Use Cases
---------
* As an administrator, I want to suspend an audit with continuous mode to
execute audit regularly for maintenance.
* As an administrator, I want to resume the audit with continuous mode to
execute audit after maintenance.
Proposed change
===============
Currently, scheduler periodically picks up audit of **PENDING**, **ONGOING**
or **SUCCEEDED** state. Then audit's job named execute_audit is added to
scheduler. Execute_audit job first checks audit state. If state is
**CANCELLED**, **DELETED** or **FAILED**, audit's job is removed and
strategy is not executed.
This spec adds new audit state **SUSPENDED** and changes execute_audit's audit
state check condition. If state is **CANCELLED**, **DELETED**, **FAILED**
or **SUSPENDED**, audit's job is removed and strategy is not executed.
Otherwise, strategy is executed.
Since **SUSPENDED** is new audit state, audit state transition check when
updating audit state is also changed. **ONGOING** state can be changed to
**SUSPENDED**. **SUSPENDED** can be changed to **ONGOING** in reverse.
Alternatives
------------
* Delete the audit and create again.
* Currently, **ONGOING** state can be changed to **CANCELLED** state, but
not be changed in reverse. If we can change from the **CANCELLED** state
to **ONGOING** state, it is also an alternative.
Data model impact
-----------------
None
REST API impact
---------------
None
Security impact
---------------
None
Notifications impact
--------------------
None
Other end user impact
---------------------
None
Performance Impact
------------------
None
Other deployer impact
---------------------
None
Developer impact
----------------
None
Implementation
==============
Assignee(s)
-----------
Primary assignee:
<nakamura-h>
Work Items
----------
* Add **SUSPENDED** in State class of watcher.objects.audit module.
* Update ContinuousAuditHandler that **SUSPENDED** is also inactive state.
Dependencies
============
None
Testing
=======
Unit tests and tempest tests should be updated.
Documentation Impact
====================
Need to update the **Audit State Machine** in the architecture documentation.
References
==========
None
History
=======
None