212 lines
7.9 KiB
Python
212 lines
7.9 KiB
Python
#
|
|
# Licensed under the Apache License, Version 2.0 (the "License"); you may
|
|
# not use this file except in compliance with the License. You may obtain
|
|
# a copy of the License at
|
|
#
|
|
# http://www.apache.org/licenses/LICENSE-2.0
|
|
#
|
|
# Unless required by applicable law or agreed to in writing, software
|
|
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
|
|
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
|
|
# License for the specific language governing permissions and limitations
|
|
# under the License.
|
|
|
|
from oslo_config import cfg
|
|
|
|
from heat.common import exception
|
|
from heat.common.i18n import _
|
|
from heat.engine import constraints
|
|
from heat.engine import properties
|
|
from heat.engine import resource
|
|
from heat.engine import support
|
|
from heat.engine import watchrule
|
|
|
|
|
|
class CloudWatchAlarm(resource.Resource):
|
|
PROPERTIES = (
|
|
COMPARISON_OPERATOR, ALARM_DESCRIPTION, EVALUATION_PERIODS,
|
|
METRIC_NAME, NAMESPACE, PERIOD, STATISTIC, ALARM_ACTIONS,
|
|
OKACTIONS, DIMENSIONS, INSUFFICIENT_DATA_ACTIONS, THRESHOLD,
|
|
UNITS,
|
|
) = (
|
|
'ComparisonOperator', 'AlarmDescription', 'EvaluationPeriods',
|
|
'MetricName', 'Namespace', 'Period', 'Statistic', 'AlarmActions',
|
|
'OKActions', 'Dimensions', 'InsufficientDataActions', 'Threshold',
|
|
'Units',
|
|
)
|
|
|
|
properties_schema = {
|
|
COMPARISON_OPERATOR: properties.Schema(
|
|
properties.Schema.STRING,
|
|
_('Operator used to compare the specified Statistic with '
|
|
'Threshold.'),
|
|
constraints=[
|
|
constraints.AllowedValues(['GreaterThanOrEqualToThreshold',
|
|
'GreaterThanThreshold',
|
|
'LessThanThreshold',
|
|
'LessThanOrEqualToThreshold']),
|
|
],
|
|
required=True,
|
|
update_allowed=True
|
|
),
|
|
ALARM_DESCRIPTION: properties.Schema(
|
|
properties.Schema.STRING,
|
|
_('Description for the alarm.'),
|
|
update_allowed=True
|
|
),
|
|
EVALUATION_PERIODS: properties.Schema(
|
|
properties.Schema.STRING,
|
|
_('Number of periods to evaluate over.'),
|
|
required=True,
|
|
update_allowed=True
|
|
),
|
|
METRIC_NAME: properties.Schema(
|
|
properties.Schema.STRING,
|
|
_('Metric name watched by the alarm.'),
|
|
required=True
|
|
),
|
|
NAMESPACE: properties.Schema(
|
|
properties.Schema.STRING,
|
|
_('Namespace for the metric.'),
|
|
required=True
|
|
),
|
|
PERIOD: properties.Schema(
|
|
properties.Schema.STRING,
|
|
_('Period (seconds) to evaluate over.'),
|
|
required=True,
|
|
update_allowed=True
|
|
),
|
|
STATISTIC: properties.Schema(
|
|
properties.Schema.STRING,
|
|
_('Metric statistic to evaluate.'),
|
|
constraints=[
|
|
constraints.AllowedValues(['SampleCount', 'Average', 'Sum',
|
|
'Minimum', 'Maximum']),
|
|
],
|
|
required=True,
|
|
update_allowed=True
|
|
),
|
|
ALARM_ACTIONS: properties.Schema(
|
|
properties.Schema.LIST,
|
|
_('A list of actions to execute when state transitions to alarm.'),
|
|
update_allowed=True
|
|
),
|
|
OKACTIONS: properties.Schema(
|
|
properties.Schema.LIST,
|
|
_('A list of actions to execute when state transitions to ok.'),
|
|
update_allowed=True
|
|
),
|
|
DIMENSIONS: properties.Schema(
|
|
properties.Schema.LIST,
|
|
_('A list of dimensions (arbitrary name/value pairs) associated '
|
|
'with the metric.')
|
|
),
|
|
INSUFFICIENT_DATA_ACTIONS: properties.Schema(
|
|
properties.Schema.LIST,
|
|
_('A list of actions to execute when state transitions to '
|
|
'insufficient-data.'),
|
|
update_allowed=True
|
|
),
|
|
THRESHOLD: properties.Schema(
|
|
properties.Schema.STRING,
|
|
_('Threshold to evaluate against.'),
|
|
required=True,
|
|
update_allowed=True
|
|
),
|
|
UNITS: properties.Schema(
|
|
properties.Schema.STRING,
|
|
_('Unit for the metric.'),
|
|
constraints=[
|
|
constraints.AllowedValues(['Seconds', 'Microseconds',
|
|
'Milliseconds', 'Bytes',
|
|
'Kilobytes', 'Megabytes',
|
|
'Gigabytes', 'Terabytes', 'Bits',
|
|
'Kilobits', 'Megabits',
|
|
'Gigabits', 'Terabits', 'Percent',
|
|
'Count', 'Bytes/Second',
|
|
'Kilobytes/Second',
|
|
'Megabytes/Second',
|
|
'Gigabytes/Second',
|
|
'Terabytes/Second', 'Bits/Second',
|
|
'Kilobits/Second',
|
|
'Megabits/Second',
|
|
'Gigabits/Second',
|
|
'Terabits/Second', 'Count/Second',
|
|
None]),
|
|
],
|
|
update_allowed=True
|
|
),
|
|
}
|
|
|
|
strict_dependency = False
|
|
|
|
support_status = support.SupportStatus(
|
|
status=support.HIDDEN,
|
|
message=_('OS::Heat::CWLiteAlarm is deprecated, '
|
|
'use OS::Ceilometer::Alarm instead.'),
|
|
version='5.0.0',
|
|
previous_status=support.SupportStatus(
|
|
status=support.DEPRECATED,
|
|
version='2014.2'
|
|
)
|
|
)
|
|
|
|
def handle_create(self):
|
|
wr = watchrule.WatchRule(context=self.context,
|
|
watch_name=self.physical_resource_name(),
|
|
rule=self.parsed_template('Properties'),
|
|
stack_id=self.stack.id)
|
|
wr.store()
|
|
|
|
def handle_update(self, json_snippet, tmpl_diff, prop_diff):
|
|
# If Properties has changed, update self.properties, so we
|
|
# get the new values during any subsequent adjustment
|
|
if prop_diff:
|
|
self.properties = json_snippet.properties(self.properties_schema,
|
|
self.context)
|
|
loader = watchrule.WatchRule.load
|
|
wr = loader(self.context,
|
|
watch_name=self.physical_resource_name())
|
|
|
|
wr.rule = self.parsed_template('Properties')
|
|
wr.store()
|
|
|
|
def handle_delete(self):
|
|
try:
|
|
wr = watchrule.WatchRule.load(
|
|
self.context, watch_name=self.physical_resource_name())
|
|
wr.destroy()
|
|
except exception.WatchRuleNotFound:
|
|
pass
|
|
|
|
def handle_suspend(self):
|
|
wr = watchrule.WatchRule.load(self.context,
|
|
watch_name=self.physical_resource_name())
|
|
wr.state_set(wr.SUSPENDED)
|
|
|
|
def handle_resume(self):
|
|
wr = watchrule.WatchRule.load(self.context,
|
|
watch_name=self.physical_resource_name())
|
|
# Just set to NODATA, which will be re-evaluated next periodic task
|
|
wr.state_set(wr.NODATA)
|
|
|
|
def handle_check(self):
|
|
watch_name = self.physical_resource_name()
|
|
watchrule.WatchRule.load(self.context, watch_name=watch_name)
|
|
|
|
def FnGetRefId(self):
|
|
return self.physical_resource_name_or_FnGetRefId()
|
|
|
|
def physical_resource_name(self):
|
|
return '%s-%s' % (self.stack.name, self.name)
|
|
|
|
|
|
def resource_mapping():
|
|
cfg.CONF.import_opt('enable_cloud_watch_lite', 'heat.common.config')
|
|
if cfg.CONF.enable_cloud_watch_lite:
|
|
return {
|
|
'OS::Heat::CWLiteAlarm': CloudWatchAlarm,
|
|
}
|
|
else:
|
|
return {}
|