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#!/usr/bin/python
#coding: utf-8 -*-
# Copyright (c) 2014 Hewlett-Packard Development Company, L.P.
#
# This module 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.
#
# This software 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 this software. If not, see <http://www.gnu.org/licenses/>.
try:
import shade
from shade import meta
HAS_SHADE = True
except ImportError:
HAS_SHADE = False
DOCUMENTATION = '''
---
module: os_server_volume
short_description: Attach/Detach Volumes from OpenStack VM's
extends_documentation_fragment: openstack
version_added: "2.0"
author: "Monty Taylor (@emonty)"
description:
- Attach or Detach volumes from OpenStack VM's
options:
state:
description:
- Should the resource be present or absent.
choices: [present, absent]
default: present
required: false
server:
description:
- Name or ID of server you want to attach a volume to
required: true
volume:
description:
- Name or id of volume you want to attach to a server
required: true
device:
description:
- Device you want to attach. Defaults to auto finding a device name.
required: false
default: None
requirements:
- "python >= 2.6"
- "shade"
'''
EXAMPLES = '''
# Attaches a volume to a compute host
- name: attach a volume
hosts: localhost
tasks:
- name: attach volume to host
os_server_volume:
state: present
cloud: mordred
server: Mysql-server
volume: mysql-data
device: /dev/vdb
'''
def _system_state_change(state, device):
"""Check if system state would change."""
if state == 'present':
if device:
return False
return True
if state == 'absent':
if device:
return True
return False
return False
def main():
argument_spec = openstack_full_argument_spec(
server=dict(required=True),
volume=dict(required=True),
device=dict(default=None), # None == auto choose device name
state=dict(default='present', choices=['absent', 'present']),
)
module_kwargs = openstack_module_kwargs()
module = AnsibleModule(argument_spec,
supports_check_mode=True,
**module_kwargs)
if not HAS_SHADE:
module.fail_json(msg='shade is required for this module')
state = module.params['state']
wait = module.params['wait']
timeout = module.params['timeout']
try:
cloud = shade.openstack_cloud(**module.params)
server = cloud.get_server(module.params['server'])
volume = cloud.get_volume(module.params['volume'])
dev = cloud.get_volume_attach_device(volume, server.id)
if module.check_mode:
module.exit_json(changed=_system_state_change(state, dev))
if state == 'present':
if dev:
# Volume is already attached to this server
module.exit_json(changed=False)
cloud.attach_volume(server, volume, module.params['device'],
wait=wait, timeout=timeout)
server = cloud.get_server(module.params['server']) # refresh
volume = cloud.get_volume(module.params['volume']) # refresh
hostvars = meta.get_hostvars_from_server(cloud, server)
module.exit_json(
changed=True,
id=volume['id'],
attachments=volume['attachments'],
openstack=hostvars
)
elif state == 'absent':
if not dev:
# Volume is not attached to this server
module.exit_json(changed=False)
cloud.detach_volume(server, volume, wait=wait, timeout=timeout)
module.exit_json(
changed=True,
result='Detached volume from server'
)
except (shade.OpenStackCloudException, shade.OpenStackCloudTimeout) as e:
module.fail_json(msg=str(e))
# this is magic, see lib/ansible/module_utils/common.py
from ansible.module_utils.basic import *
from ansible.module_utils.openstack import *
if __name__ == '__main__':
main()
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