Merge "Support OS::Aodh::CompositeAlarm resource"
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====================================
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Support aodh composite alarm in heat
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====================================
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https://blueprints.launchpad.net/heat/+spec/add-aodh-composite-alarm
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Adds resource plugin for Aodh composite alarm.
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Problem description
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===================
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The combination type alarm has been deprecated in aodh, because some issues
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which are hard to solved. And we have deprecated OS::Aodh::CombinationAlarm
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synchronously, see:
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https://blueprints.launchpad.net/heat/+spec/migrate-to-use-aodh-for-alarms
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It's recommended to use composite rule alarm which is similar with the
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combination alarm in functionality.
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Proposed change
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===============
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Add the following resource under resources/openstack/aodh/
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* OS::Aodh::CompositeAlarm
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* description
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Description of the alarm.
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- optional
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- type: String
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- update_allowed
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* severity
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Severity of the alarm.
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- optional
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- type: Integer
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- update_allowed
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- constraints: one of ['low', 'moderate', 'critical']
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- default: low
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* enabled
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True if alarm evaluation is enabled.
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- optional
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- type: Boolean
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- update_allowed
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- default: True
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* alarm_actions
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A list of URLs (webhooks) to invoke when state transitions to alarm.
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- optional
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- type: List
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- update_allowed
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* ok_actions
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A list of URLs (webhooks) to invoke when state transitions to ok.
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- optional
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- type: List
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- update_allowed
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* insufficient_data_actions
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A list of URLs (webhooks) to invoke when state transitions to
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insufficient-data.
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- optional
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- type: List
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- update_allowed
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* repeat_actions
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True if actions should be repeatedly notified while alarm remains
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in target state.
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- optional
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- type: Boolean
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- update_allowed
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- default: True
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* time_constraints
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Describe time constraints for the alarm.
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- optional
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- type: List
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* composite_rule
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Composite threshold rule with JSON format.
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- required
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- type: Map
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- update_allowed
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- schema: {'operator': 'or'/'and', 'rules': [rule1, rule2...]}
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The following is an example of composite alarm::
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Resources:
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my_composite_alarm:
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type: OS::Aodh::CompositeAlarm
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properties:
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composite_rule:
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operator: or
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rules:
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- type: threshold
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meter_name: cpu_util
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evaluation_periods: 1
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period: 60
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statistic: avg
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threshold: 0.8
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comparison_operator: ge
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exclude_outliers: false
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- and:
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- type: threshold
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meter_name: disk.usage
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evaluation_periods: 1
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period: 60
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statistic: avg
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threshold: 0.8
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comparison_operator: ge
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exclude_outliers: false
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- type: threshold
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meter_name: mem_util
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evaluation_periods: 1
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period: 60
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statistic: avg
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threshold: 0.8
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comparison_operator: ge
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exclude_outliers: false
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description: a composite alarm
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...... (other properties)
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Alternatives
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------------
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None
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Implementation
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==============
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Assignee(s)
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-----------
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Primary assignee:
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huangtianhua@huawei.com
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Milestones
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----------
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Target Milestone for completion:
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ocata-1
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Work Items
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----------
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* Add OS::Aodh::CompositeAlarm resource
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* Add related tests
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* Add sample template using OS::Aodh::CompositeAlarm in heat-templates
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Dependencies
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============
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None
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