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##############################################################################
# Copyright (c) 2017 ZTE Corporation and others.
#
# All rights reserved. This program and the accompanying materials
# are made available under the terms of the Apache License, Version 2.0
# which accompanies this distribution, and is available at
# http://www.apache.org/licenses/LICENSE-2.0
##############################################################################
import os
vitrage_template_file = \
'/etc/vitrage/templates/vitrage_host_down_scenarios.yaml'
template = """
metadata:
name: host_down_scenarios
description: scenarios triggered by Doctor monitor 'compute.host.down' alarm
definitions:
entities:
- entity:
category: ALARM
name: compute.host.down
template_id: host_down_alarm
- entity:
category: ALARM
type: vitrage
name: Instance Down
template_id: instance_alarm
- entity:
category: RESOURCE
type: nova.instance
template_id: instance
- entity:
category: RESOURCE
type: nova.host
template_id: host
relationships:
- relationship:
source: host_down_alarm
relationship_type: on
target: host
template_id : host_down_alarm_on_host
- relationship:
source: host
relationship_type: contains
target: instance
template_id : host_contains_instance
- relationship:
source: instance_alarm
relationship_type: on
target: instance
template_id : alarm_on_instance
scenarios:
- scenario:
condition: host_down_alarm_on_host
actions:
- action:
action_type: set_state
action_target:
target: host
properties:
state: ERROR
- action:
action_type: mark_down
action_target:
target: host
- scenario:
condition: host_down_alarm_on_host and host_contains_instance
actions:
- action:
action_type: raise_alarm
action_target:
target: instance
properties:
alarm_name: Instance Down
severity: critical
- scenario:
condition: host_down_alarm_on_host and host_contains_instance and alarm_on_instance
actions:
- action:
action_type: add_causal_relationship
action_target:
source: host_down_alarm
target: instance_alarm
- action:
action_type: mark_down
action_target:
target: instance
""" # noqa
def set_vitrage_host_down_template():
if os.path.isfile(vitrage_template_file):
print('Vitrage host_down template file: %s already exists.'
% vitrage_template_file)
else:
print('Create Vitrage host_down template file:%s.'
% vitrage_template_file)
with open(vitrage_template_file, 'w') as file:
file.write(template)
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