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#!/usr/bin/python
# -*- coding: utf-8 -*-
#
# 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/>.
ANSIBLE_METADATA = {'metadata_version': '1.0',
'status': ['preview'],
'supported_by': 'community'}
DOCUMENTATION = '''
---
module: gce_snapshot
version_added: "2.3"
short_description: Create or destroy snapshots for GCE storage volumes
description:
- Manages snapshots for GCE instances. This module manages snapshots for
the storage volumes of a GCE compute instance. If there are multiple
volumes, each snapshot will be prepended with the disk name
options:
instance_name:
description:
- The GCE instance to snapshot
required: True
snapshot_name:
description:
- The name of the snapshot to manage
disks:
description:
- A list of disks to create snapshots for. If none is provided,
all of the volumes will be snapshotted
default: all
required: False
state:
description:
- Whether a snapshot should be C(present) or C(absent)
required: false
default: present
choices: [present, absent]
service_account_email:
description:
- GCP service account email for the project where the instance resides
required: true
credentials_file:
description:
- The path to the credentials file associated with the service account
required: true
project_id:
description:
- The GCP project ID to use
required: true
requirements:
- "python >= 2.6"
- "apache-libcloud >= 0.19.0"
author: Rob Wagner (@robwagner33)
'''
EXAMPLES = '''
- name: Create gce snapshot
gce_snapshot:
instance_name: example-instance
snapshot_name: example-snapshot
state: present
service_account_email: project_name@appspot.gserviceaccount.com
credentials_file: /path/to/credentials
project_id: project_name
delegate_to: localhost
- name: Delete gce snapshot
gce_snapshot:
instance_name: example-instance
snapshot_name: example-snapshot
state: absent
service_account_email: project_name@appspot.gserviceaccount.com
credentials_file: /path/to/credentials
project_id: project_name
delegate_to: localhost
# This example creates snapshots for only two of the available disks as
# disk0-example-snapshot and disk1-example-snapshot
- name: Create snapshots of specific disks
gce_snapshot:
instance_name: example-instance
snapshot_name: example-snapshot
state: present
disks:
- disk0
- disk1
service_account_email: project_name@appspot.gserviceaccount.com
credentials_file: /path/to/credentials
project_id: project_name
delegate_to: localhost
'''
RETURN = '''
snapshots_created:
description: List of newly created snapshots
returned: When snapshots are created
type: list
sample: "[disk0-example-snapshot, disk1-example-snapshot]"
snapshots_deleted:
description: List of destroyed snapshots
returned: When snapshots are deleted
type: list
sample: "[disk0-example-snapshot, disk1-example-snapshot]"
snapshots_existing:
description: List of snapshots that already existed (no-op)
returned: When snapshots were already present
type: list
sample: "[disk0-example-snapshot, disk1-example-snapshot]"
snapshots_absent:
description: List of snapshots that were already absent (no-op)
returned: When snapshots were already absent
type: list
sample: "[disk0-example-snapshot, disk1-example-snapshot]"
'''
from ansible.module_utils.basic import AnsibleModule
from ansible.module_utils.gce import gce_connect
try:
from libcloud.compute.types import Provider
_ = Provider.GCE
HAS_LIBCLOUD = True
except ImportError:
HAS_LIBCLOUD = False
def find_snapshot(volume, name):
'''
Check if there is a snapshot already created with the given name for
the passed in volume.
Args:
volume: A gce StorageVolume object to manage
name: The name of the snapshot to look for
Returns:
The VolumeSnapshot object if one is found
'''
found_snapshot = None
snapshots = volume.list_snapshots()
for snapshot in snapshots:
if name == snapshot.name:
found_snapshot = snapshot
return found_snapshot
def main():
module = AnsibleModule(
argument_spec=dict(
instance_name=dict(required=True),
snapshot_name=dict(required=True),
state=dict(choices=['present', 'absent'], default='present'),
disks=dict(default=None, type='list'),
service_account_email=dict(type='str'),
credentials_file=dict(type='path'),
project_id=dict(type='str')
)
)
if not HAS_LIBCLOUD:
module.fail_json(msg='libcloud with GCE support (0.19.0+) is required for this module')
gce = gce_connect(module)
instance_name = module.params.get('instance_name')
snapshot_name = module.params.get('snapshot_name')
disks = module.params.get('disks')
state = module.params.get('state')
json_output = dict(
changed=False,
snapshots_created=[],
snapshots_deleted=[],
snapshots_existing=[],
snapshots_absent=[]
)
snapshot = None
instance = gce.ex_get_node(instance_name, 'all')
instance_disks = instance.extra['disks']
for instance_disk in instance_disks:
disk_snapshot_name = snapshot_name
device_name = instance_disk['deviceName']
if disks is None or device_name in disks:
volume_obj = gce.ex_get_volume(device_name)
# If we have more than one disk to snapshot, prepend the disk name
if len(instance_disks) > 1:
disk_snapshot_name = device_name + "-" + disk_snapshot_name
snapshot = find_snapshot(volume_obj, disk_snapshot_name)
if snapshot and state == 'present':
json_output['snapshots_existing'].append(disk_snapshot_name)
elif snapshot and state == 'absent':
snapshot.destroy()
json_output['changed'] = True
json_output['snapshots_deleted'].append(disk_snapshot_name)
elif not snapshot and state == 'present':
volume_obj.snapshot(disk_snapshot_name)
json_output['changed'] = True
json_output['snapshots_created'].append(disk_snapshot_name)
elif not snapshot and state == 'absent':
json_output['snapshots_absent'].append(disk_snapshot_name)
module.exit_json(**json_output)
if __name__ == '__main__':
main()
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