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#!/usr/bin/python
# This file is part of Ansible
#
# Ansible is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# Ansible is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with Ansible. If not, see <http://www.gnu.org/licenses/>.
# This is a DOCUMENTATION stub specific to this module, it extends
# a documentation fragment located in ansible.utils.module_docs_fragments
DOCUMENTATION = '''
---
module: rax_mon_alarm
short_description: Create or delete a Rackspace Cloud Monitoring alarm.
description:
- Create or delete a Rackspace Cloud Monitoring alarm that associates an
existing rax_mon_entity, rax_mon_check, and rax_mon_notification_plan with
criteria that specify what conditions will trigger which levels of
notifications. Rackspace monitoring module flow | rax_mon_entity ->
rax_mon_check -> rax_mon_notification -> rax_mon_notification_plan ->
*rax_mon_alarm*
version_added: "2.0"
options:
state:
description:
- Ensure that the alarm with this C(label) exists or does not exist.
choices: [ "present", "absent" ]
required: false
default: present
label:
description:
- Friendly name for this alarm, used to achieve idempotence. Must be a String
between 1 and 255 characters long.
required: true
entity_id:
description:
- ID of the entity this alarm is attached to. May be acquired by registering
the value of a rax_mon_entity task.
required: true
check_id:
description:
- ID of the check that should be alerted on. May be acquired by registering
the value of a rax_mon_check task.
required: true
notification_plan_id:
description:
- ID of the notification plan to trigger if this alarm fires. May be acquired
by registering the value of a rax_mon_notification_plan task.
required: true
criteria:
description:
- Alarm DSL that describes alerting conditions and their output states. Must
be between 1 and 16384 characters long. See
http://docs.rackspace.com/cm/api/v1.0/cm-devguide/content/alerts-language.html
for a reference on the alerting language.
disabled:
description:
- If yes, create this alarm, but leave it in an inactive state. Defaults to
no.
choices: [ "yes", "no" ]
metadata:
description:
- Arbitrary key/value pairs to accompany the alarm. Must be a hash of String
keys and values between 1 and 255 characters long.
author: Ash Wilson
extends_documentation_fragment: rackspace.openstack
'''
EXAMPLES = '''
- name: Alarm example
gather_facts: False
hosts: local
connection: local
tasks:
- name: Ensure that a specific alarm exists.
rax_mon_alarm:
credentials: ~/.rax_pub
state: present
label: uhoh
entity_id: "{{ the_entity['entity']['id'] }}"
check_id: "{{ the_check['check']['id'] }}"
notification_plan_id: "{{ defcon1['notification_plan']['id'] }}"
criteria: >
if (rate(metric['average']) > 10) {
return new AlarmStatus(WARNING);
}
return new AlarmStatus(OK);
register: the_alarm
'''
try:
import pyrax
HAS_PYRAX = True
except ImportError:
HAS_PYRAX = False
def alarm(module, state, label, entity_id, check_id, notification_plan_id, criteria,
disabled, metadata):
if len(label) < 1 or len(label) > 255:
module.fail_json(msg='label must be between 1 and 255 characters long')
if criteria and len(criteria) < 1 or len(criteria) > 16384:
module.fail_json(msg='criteria must be between 1 and 16384 characters long')
# Coerce attributes.
changed = False
alarm = None
cm = pyrax.cloud_monitoring
if not cm:
module.fail_json(msg='Failed to instantiate client. This typically '
'indicates an invalid region or an incorrectly '
'capitalized region name.')
existing = [a for a in cm.list_alarms(entity_id) if a.label == label]
if existing:
alarm = existing[0]
if state == 'present':
should_create = False
should_update = False
should_delete = False
if len(existing) > 1:
module.fail_json(msg='%s existing alarms have the label %s.' %
(len(existing), label))
if alarm:
if check_id != alarm.check_id or notification_plan_id != alarm.notification_plan_id:
should_delete = should_create = True
should_update = (disabled and disabled != alarm.disabled) or \
(metadata and metadata != alarm.metadata) or \
(criteria and criteria != alarm.criteria)
if should_update and not should_delete:
cm.update_alarm(entity=entity_id, alarm=alarm,
criteria=criteria, disabled=disabled,
label=label, metadata=metadata)
changed = True
if should_delete:
alarm.delete()
changed = True
else:
should_create = True
if should_create:
alarm = cm.create_alarm(entity=entity_id, check=check_id,
notification_plan=notification_plan_id,
criteria=criteria, disabled=disabled, label=label,
metadata=metadata)
changed = True
else:
for a in existing:
a.delete()
changed = True
if alarm:
alarm_dict = {
"id": alarm.id,
"label": alarm.label,
"check_id": alarm.check_id,
"notification_plan_id": alarm.notification_plan_id,
"criteria": alarm.criteria,
"disabled": alarm.disabled,
"metadata": alarm.metadata
}
module.exit_json(changed=changed, alarm=alarm_dict)
else:
module.exit_json(changed=changed)
def main():
argument_spec = rax_argument_spec()
argument_spec.update(
dict(
state=dict(default='present', choices=['present', 'absent']),
label=dict(required=True),
entity_id=dict(required=True),
check_id=dict(required=True),
notification_plan_id=dict(required=True),
criteria=dict(),
disabled=dict(type='bool', default=False),
metadata=dict(type='dict')
)
)
module = AnsibleModule(
argument_spec=argument_spec,
required_together=rax_required_together()
)
if not HAS_PYRAX:
module.fail_json(msg='pyrax is required for this module')
state = module.params.get('state')
label = module.params.get('label')
entity_id = module.params.get('entity_id')
check_id = module.params.get('check_id')
notification_plan_id = module.params.get('notification_plan_id')
criteria = module.params.get('criteria')
disabled = module.boolean(module.params.get('disabled'))
metadata = module.params.get('metadata')
setup_rax_module(module, pyrax)
alarm(module, state, label, entity_id, check_id, notification_plan_id,
criteria, disabled, metadata)
# Import module snippets
from ansible.module_utils.basic import *
from ansible.module_utils.rax import *
# Invoke the module.
if __name__ == '__main__':
main()
|
