ansible/storage/netapp/netapp_e_snapshot_volume.py
Adrian Likins 2c7563b9bb Add modules for NetApp SANtricity storage platform (#2929)
The modules prefixed with netapp_e* are built to support the
SANtricity storage platform.

The modules provide idempotent provisioning for volume groups, disk
pools, standard volumes, thin volumes, LUN mapping, hosts, host groups
(clusters), volume snapshots, consistency groups, and asynchronous
mirroring.

They require the SANtricity WebServices Proxy.
The WebServices Proxy is free software available at
the NetApp Software Download site:

   http://mysupport.netapp.com/NOW/download/software/eseries_webservices/1.40.X000.0009/

Starting with the E2800 platform (11.30 OS), the modules will work
directly with the storage array.  Starting with this platform, REST API
requests are handled directly on the box.  This array can still be
managed by proxy for large scale deployments.
2016-09-15 14:52:55 -04:00

287 lines
10 KiB
Python

#!/usr/bin/python
# (c) 2016, NetApp, Inc
#
# 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/>.
#
DOCUMENTATION = """
---
module: netapp_e_snapshot_volume
short_description: Manage E/EF-Series snapshot volumes.
description:
- Create, update, remove snapshot volumes for NetApp E/EF-Series storage arrays.
version_added: '2.2'
author: Kevin Hulquest (@hulquest)
note: Only I(full_threshold) is supported for update operations. If the snapshot volume already exists and the threshold matches, then an C(ok) status will be returned, no other changes can be made to a pre-existing snapshot volume.
options:
api_username:
required: true
description:
- The username to authenticate with the SANtricity WebServices Proxy or embedded REST API.
api_password:
required: true
description:
- The password to authenticate with the SANtricity WebServices Proxy or embedded REST API.
api_url:
required: true
description:
- The url to the SANtricity WebServices Proxy or embedded REST API.
example:
- https://prod-1.wahoo.acme.com/devmgr/v2
validate_certs:
required: false
default: true
description:
- Should https certificates be validated?
ssid:
description:
- storage array ID
required: True
snapshot_image_id:
required: True
description:
- The identifier of the snapshot image used to create the new snapshot volume.
- "Note: You'll likely want to use the M(netapp_e_facts) module to find the ID of the image you want."
full_threshold:
description:
- The repository utilization warning threshold percentage
default: 85
name:
required: True
description:
- The name you wish to give the snapshot volume
view_mode:
required: True
description:
- The snapshot volume access mode
choices:
- modeUnknown
- readWrite
- readOnly
- __UNDEFINED
repo_percentage:
description:
- The size of the view in relation to the size of the base volume
default: 20
storage_pool_name:
description:
- Name of the storage pool on which to allocate the repository volume.
required: True
state:
description:
- Whether to create or remove the snapshot volume
required: True
choices:
- absent
- present
"""
EXAMPLES = """
- name: Snapshot volume
netapp_e_snapshot_volume:
ssid: "{{ ssid }}"
api_url: "{{ netapp_api_url }}"/
api_username: "{{ netapp_api_username }}"
api_password: "{{ netapp_api_password }}"
state: present
storage_pool_name: "{{ snapshot_volume_storage_pool_name }}"
snapshot_image_id: "{{ snapshot_volume_image_id }}"
name: "{{ snapshot_volume_name }}"
"""
RETURN = """
msg:
description: Success message
returned: success
type: string
sample: Json facts for the volume that was created.
"""
HEADERS = {
"Content-Type": "application/json",
"Accept": "application/json",
}
import json
from ansible.module_utils.api import basic_auth_argument_spec
from ansible.module_utils.basic import AnsibleModule
from ansible.module_utils.pycompat24 import get_exception
from ansible.module_utils.urls import open_url
from ansible.module_utils.six.moves.urllib.error import HTTPError
def request(url, data=None, headers=None, method='GET', use_proxy=True,
force=False, last_mod_time=None, timeout=10, validate_certs=True,
url_username=None, url_password=None, http_agent=None, force_basic_auth=True, ignore_errors=False):
try:
r = open_url(url=url, data=data, headers=headers, method=method, use_proxy=use_proxy,
force=force, last_mod_time=last_mod_time, timeout=timeout, validate_certs=validate_certs,
url_username=url_username, url_password=url_password, http_agent=http_agent,
force_basic_auth=force_basic_auth)
except HTTPError:
err = get_exception()
r = err.fp
try:
raw_data = r.read()
if raw_data:
data = json.loads(raw_data)
else:
raw_data = None
except:
if ignore_errors:
pass
else:
raise Exception(raw_data)
resp_code = r.getcode()
if resp_code >= 400 and not ignore_errors:
raise Exception(resp_code, data)
else:
return resp_code, data
class SnapshotVolume(object):
def __init__(self):
argument_spec = basic_auth_argument_spec()
argument_spec.update(dict(
api_username=dict(type='str', required=True),
api_password=dict(type='str', required=True, no_log=True),
api_url=dict(type='str', required=True),
ssid=dict(type='str', required=True),
snapshot_image_id=dict(type='str', required=True),
full_threshold=dict(type='int', default=85),
name=dict(type='str', required=True),
view_mode=dict(type='str', default='readOnly',
choices=['readOnly', 'readWrite', 'modeUnknown', '__Undefined']),
repo_percentage=dict(type='int', default=20),
storage_pool_name=dict(type='str', required=True),
state=dict(type='str', required=True, choices=['absent', 'present'])
))
self.module = AnsibleModule(argument_spec=argument_spec)
args = self.module.params
self.state = args['state']
self.ssid = args['ssid']
self.snapshot_image_id = args['snapshot_image_id']
self.full_threshold = args['full_threshold']
self.name = args['name']
self.view_mode = args['view_mode']
self.repo_percentage = args['repo_percentage']
self.storage_pool_name = args['storage_pool_name']
self.url = args['api_url']
self.user = args['api_username']
self.pwd = args['api_password']
self.certs = args['validate_certs']
if not self.url.endswith('/'):
self.url += '/'
@property
def pool_id(self):
pools = 'storage-systems/%s/storage-pools' % self.ssid
url = self.url + pools
(rc, data) = request(url, headers=HEADERS, url_username=self.user, url_password=self.pwd,
validate_certs=self.certs)
for pool in data:
if pool['name'] == self.storage_pool_name:
self.pool_data = pool
return pool['id']
self.module.fail_json(msg="No storage pool with the name: '%s' was found" % self.name)
@property
def ss_vol_exists(self):
rc, ss_vols = request(self.url + 'storage-systems/%s/snapshot-volumes' % self.ssid, headers=HEADERS,
url_username=self.user, url_password=self.pwd, validate_certs=self.certs)
if ss_vols:
for ss_vol in ss_vols:
if ss_vol['name'] == self.name:
self.ss_vol = ss_vol
return True
else:
return False
return False
@property
def ss_vol_needs_update(self):
if self.ss_vol['fullWarnThreshold'] != self.full_threshold:
return True
else:
return False
def create_ss_vol(self):
post_data = dict(
snapshotImageId=self.snapshot_image_id,
fullThreshold=self.full_threshold,
name=self.name,
viewMode=self.view_mode,
repositoryPercentage=self.repo_percentage,
repositoryPoolId=self.pool_id
)
rc, create_resp = request(self.url + 'storage-systems/%s/snapshot-volumes' % self.ssid,
data=json.dumps(post_data), headers=HEADERS, url_username=self.user,
url_password=self.pwd, validate_certs=self.certs, method='POST')
self.ss_vol = create_resp
# Doing a check after creation because the creation call fails to set the specified warning threshold
if self.ss_vol_needs_update:
self.update_ss_vol()
else:
self.module.exit_json(changed=True, **create_resp)
def update_ss_vol(self):
post_data = dict(
fullThreshold=self.full_threshold,
)
rc, resp = request(self.url + 'storage-systems/%s/snapshot-volumes/%s' % (self.ssid, self.ss_vol['id']),
data=json.dumps(post_data), headers=HEADERS, url_username=self.user, url_password=self.pwd,
method='POST', validate_certs=self.certs)
self.module.exit_json(changed=True, **resp)
def remove_ss_vol(self):
rc, resp = request(self.url + 'storage-systems/%s/snapshot-volumes/%s' % (self.ssid, self.ss_vol['id']),
headers=HEADERS, url_username=self.user, url_password=self.pwd, validate_certs=self.certs,
method='DELETE')
self.module.exit_json(changed=True, msg="Volume successfully deleted")
def apply(self):
if self.state == 'present':
if self.ss_vol_exists:
if self.ss_vol_needs_update:
self.update_ss_vol()
else:
self.module.exit_json(changed=False, **self.ss_vol)
else:
self.create_ss_vol()
else:
if self.ss_vol_exists:
self.remove_ss_vol()
else:
self.module.exit_json(changed=False, msg="Volume already absent")
def main():
sv = SnapshotVolume()
sv.apply()
if __name__ == '__main__':
main()