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+..
+ This work is licensed under a Creative Commons Attribution 3.0 Unported
+ License.
+
+ http://creativecommons.org/licenses/by/3.0/legalcode
+
+=================================================
+Aodh Synchronizer Plugin - get_all implementation
+=================================================
+
+launchpad blueprint:
+https://blueprints.launchpad.net/vitrage/+spec/synchronizer-aodh-get-all
+
+This blueprint describes the Aodh plugin for Vitrage Synchronizer, and its
+implementation for get_all Aodh alarms.
+
+Problem description
+===================
+
+Aodh alarms should be added to Vitrage Graph via Vitrage Synchronizer.
+This requires writing a Synchronizer plugin for Aodh.
+
+The plugin should support two modes:
+
+* get_all: query all Aodh alarms and send corresponding events to the Synchronizer
+* notifications: notify the Synchronizer upon a change in an Aodh alarm definition or state
+
+This blueprint refers to get_all implementation.
+
+Proposed change
+===============
+
+Aodh plugin will be configured with:
+
+* Poll interval in seconds (default: 60)
+
+Every poll-interval seconds, Aodh plugin will call Aodh list all alarms API. The alarms will be converted to Vitrage Synchronizer events and passed to Vitrage Graph queue.
+
+
+Alternatives
+------------
+
+None
+
+Data model impact
+-----------------
+
+Aodh event will be sent to Vitrage Graph queue with the following properties:
+
++------------------+----------------------------------------------------------+-----------------------------------------------------+
+| Field            | Description                                              | Examples                                            |
++==================+==========================================================+=====================================================+
+| alarm_id         | The alarm UUID                                           | e47e1be6-3598-46e6-bb63-0cc9a4e35ad7                |
++------------------+----------------------------------------------------------+-----------------------------------------------------+
+| name             | The alarm name                                           | CpuUtilAlarm1                                       |
++------------------+----------------------------------------------------------+-----------------------------------------------------+
+| description      | The alarm description                                    | Alarm when cpu is eq a avg of 300.0 over 60 seconds |
++------------------+----------------------------------------------------------+-----------------------------------------------------+
+| enabled          | Is the alarm enabled                                     | true/false                                          |
++------------------+----------------------------------------------------------+-----------------------------------------------------+
+| project_id       | The ID of the project or tenant that owns the alarm      | 5542b27142154f30b32dea6238aa81aa                    |
++------------------+----------------------------------------------------------+-----------------------------------------------------+
+| repeat_actions   | Should actions be re-triggered on each evaluation cycle  | true/false                                          |
++------------------+----------------------------------------------------------+-----------------------------------------------------+
+| severity         | The alarm severity                                       | low/moderate/critical                               |
++------------------+----------------------------------------------------------+-----------------------------------------------------+
+| state            | The alarm state                                          | ok/alarm/insufficient data                          |
++------------------+----------------------------------------------------------+-----------------------------------------------------+
+| time_constraints | Optional. Evaluate the alarm within this time constraint | ?                                                   |
++------------------+----------------------------------------------------------+-----------------------------------------------------+
+| type             | The alarm type                                           | threshold/event                                     |
++------------------+----------------------------------------------------------+-----------------------------------------------------+
+| user_id          | The ID of the user who created the alarm                 | 8ab65ef808b245e3ba234b7b3554cb94                    |
++------------------+----------------------------------------------------------+-----------------------------------------------------+
+| resource_id      | Optional. The resource id in the query of the alarm rule | b0bf3635-d9e8-4624-9793-7aac82948c0a                |
++------------------+----------------------------------------------------------+-----------------------------------------------------+
+| sync_type        | The source of information                                | aodh (constant value)                               |
++------------------+----------------------------------------------------------+-----------------------------------------------------+
+
+
+Aodh threshold alarms will include in addition:
+
++------------------+----------------------------------------------------------+-----------------------------------------------------+
+| Field            | Description                                              | Examples                                            |
++==================+==========================================================+=====================================================+
+| state_timestamp  | The date of the last alarm state changed                 | 2016-03-01T17:13:08.847812                          |
++------------------+----------------------------------------------------------+-----------------------------------------------------+
+| timestamp        | The date of the last alarm definition update             | 2016-03-01T17:13:08.847812                          |
++------------------+----------------------------------------------------------+-----------------------------------------------------+
+| threshold_rule   | The threshold rule, for a threshold alarm                | dictionary                                          |
++------------------+----------------------------------------------------------+-----------------------------------------------------+
+
+
+Aodh event alarms will include in addition:
+
++------------------+----------------------------------------------------------+-----------------------------------------------------+
+| Field            | Description                                              | Examples                                            |
++==================+==========================================================+=====================================================+
+| event_type       | Event type for event alarm                               | compute.instance.update                             |
++------------------+----------------------------------------------------------+-----------------------------------------------------+
+| timestamp        | Does not exist in Aodh? current time will be used        | 2016-03-01T17:13:08.847812                          |
++------------------+----------------------------------------------------------+-----------------------------------------------------+
+
+
+Gnocchi alarms, combination alarms and composite alarms are still TBD.
+
+TBD: how this information will be transformed to a Vitrage Graph vertex
+
+
+REST API impact
+---------------
+
+None
+
+Versioning impact
+-----------------
+
+None
+
+Other end user impact
+---------------------
+
+None
+
+Deployer impact
+---------------
+
+Aodh plugin should be configured
+
+Developer impact
+----------------
+
+None
+
+Horizon impact
+--------------
+
+None
+
+Implementation
+==============
+
+Assignee(s)
+-----------
+
+Primary assignee:
+  ifat-afek
+
+Work Items
+----------
+
+None
+
+Dependencies
+============
+
+None
+
+Testing
+=======
+
+This blueprint requires unit tests and Tempest tests.
+
+Documentation Impact
+====================
+
+Aodh Configuration should be documented
+
+References
+==========
+
+Synchronizer main blueprint:
+https://github.com/openstack/vitrage-specs/blob/master/specs/mitaka/vitrage-synchronizer.rst