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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
import shutil
import yaml
ep_file = '/etc/ceilometer/event_pipeline.yaml'
ep_file_bak = '/etc/ceilometer/event_pipeline.yaml.bak'
event_notifier_topic = 'notifier://?topic=alarm.all'
def set_notifier_topic():
config_modified = False
if not os.path.isfile(ep_file):
raise Exception("File doesn't exist: %s." % ep_file)
with open(ep_file, 'r') as file:
config = yaml.safe_load(file)
sinks = config['sinks']
for sink in sinks:
if sink['name'] == 'event_sink':
publishers = sink['publishers']
if event_notifier_topic not in publishers:
print('Add event notifier in ceilometer')
publishers.append(event_notifier_topic)
config_modified = True
else:
print('NOTE: event notifier is configured'
'in ceilometer as we needed')
if config_modified:
shutil.copyfile(ep_file, ep_file_bak)
with open(ep_file, 'w+') as file:
file.write(yaml.safe_dump(config))
def set_maintenance_event_definitions():
ed_file = '/etc/ceilometer/event_definitions.yaml'
ed_file_bak = '/etc/ceilometer/event_definitions.bak'
if not os.path.isfile(ed_file):
raise Exception("File doesn't exist: %s." % ed_file)
with open(ed_file, 'r') as file:
config = yaml.safe_load(file)
et_list = [et['event_type'] for et in config]
if 'maintenance.scheduled' in et_list:
add_mscheduled = False
print('NOTE: maintenance.scheduled allready configured')
else:
print('NOTE: add maintenance.scheduled to event_definitions.yaml')
add_mscheduled = True
mscheduled = {
'event_type': 'maintenance.scheduled',
'traits': {
'allowed_actions': {'fields': 'payload.allowed_actions'},
'instance_ids': {'fields': 'payload.instance_ids'},
'reply_url': {'fields': 'payload.reply_url'},
'actions_at': {'fields': 'payload.actions_at',
'type': 'datetime'},
'state': {'fields': 'payload.state'},
'session_id': {'fields': 'payload.session_id'},
'project_id': {'fields': 'payload.project_id'},
'metadata': {'fields': 'payload.metadata'}
}
}
config.append(mscheduled)
if 'maintenance.host' in et_list:
add_mhost = False
print('NOTE: maintenance.host allready configured')
else:
print('NOTE: add maintenance.host to event_definitions.yaml')
add_mhost = True
mhost = {
'event_type': 'maintenance.host',
'traits': {
'host': {'fields': 'payload.host'},
'project_id': {'fields': 'payload.project_id'},
'state': {'fields': 'payload.state'},
'session_id': {'fields': 'payload.session_id'}
}
}
config.append(mhost)
if add_mscheduled or add_mhost:
shutil.copyfile(ed_file, ed_file_bak)
with open(ed_file, 'w+') as file:
file.write(yaml.safe_dump(config))
def set_cpu_allocation_ratio():
nova_file = '/etc/nova/nova.conf'
nova_file_bak = '/etc/nova/nova.bak'
if not os.path.isfile(nova_file):
raise Exception("File doesn't exist: %s." % nova_file)
# TODO (tojuvone): Unfortunately ConfigParser did not produce working conf
fcheck = open(nova_file)
found_list = ([ca for ca in fcheck.readlines() if "cpu_allocation_ratio"
in ca])
fcheck.close()
if found_list and len(found_list):
change = False
found = False
for car in found_list:
if car.startswith('#'):
continue
if car.startswith('cpu_allocation_ratio'):
found = True
if "1.0" not in car.split('=')[1]:
change = True
if not found or change:
# need to add or change
shutil.copyfile(nova_file, nova_file_bak)
fin = open(nova_file_bak)
fout = open(nova_file, "wt")
for line in fin:
if change and line.startswith("cpu_allocation_ratio"):
line = "cpu_allocation_ratio=1.0"
if not found and line.startswith("[DEFAULT]"):
line += "cpu_allocation_ratio=1.0\n"
fout.write(line)
fin.close()
fout.close()
set_notifier_topic()
set_maintenance_event_definitions()
set_cpu_allocation_ratio()
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