Current File : //usr/lib/python2.7/site-packages/salt/modules/purefb.py
# -*- coding: utf-8 -*-
##
# Copyright 2018 Pure Storage Inc
#
# 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.
'''
Management of Pure Storage FlashBlade
Installation Prerequisites
--------------------------
- You will need the ``purity_fb`` python package in your python installation
path that is running salt.
.. code-block:: bash
pip install purity_fb
- Configure Pure Storage FlashBlade authentication. Use one of the following
three methods.
1) From the minion config
.. code-block:: yaml
pure_tags:
fb:
san_ip: management vip or hostname for the FlashBlade
api_token: A valid api token for the FlashBlade being managed
2) From environment (PUREFB_IP and PUREFB_API)
3) From the pillar (PUREFB_IP and PUREFB_API)
:maintainer: Simon Dodsley (simon@purestorage.com)
:maturity: new
:requires: purestorage
:platform: all
.. versionadded:: 2019.2.0
'''
# Import Python libs
from __future__ import absolute_import, print_function, unicode_literals
import os
from datetime import datetime
# Import Salt libs
from salt.ext import six
from salt.exceptions import CommandExecutionError
# Import 3rd party modules
try:
from purity_fb import PurityFb, FileSystem, FileSystemSnapshot, SnapshotSuffix
from purity_fb import rest, NfsRule, ProtocolRule
HAS_PURITY_FB = True
except ImportError:
HAS_PURITY_FB = False
__docformat__ = 'restructuredtext en'
__virtualname__ = 'purefb'
def __virtual__():
'''
Determine whether or not to load this module
'''
if HAS_PURITY_FB:
return __virtualname__
return (False, 'purefb execution module not loaded: purity_fb python library not available.')
def _get_blade():
'''
Get Pure Storage FlasBlade configuration
1) From the minion config
pure_tags:
fb:
san_ip: management vip or hostname for the FlashBlade
api_token: A valid api token for the FlashBlade being managed
2) From environment (PUREFB_IP and PUREFB_API)
3) From the pillar (PUREFB_IP and PUREFB_API)
'''
try:
blade_name = __opts__['pure_tags']['fb'].get('san_ip')
api_token = __opts__['pure_tags']['fb'].get('api_token')
if blade_name and api:
blade = PurityFb(blade_name)
blade.disable_verify_ssl()
except (KeyError, NameError, TypeError):
try:
blade_name = os.environ.get('PUREFB_IP')
api_token = os.environ.get('PUREFB_API')
if blade_name:
blade = PurityFb(blade_name)
blade.disable_verify_ssl()
except (ValueError, KeyError, NameError):
try:
api_token = __pillar__['PUREFB_API']
blade = PurityFb(__pillar__['PUREFB_IP'])
blade.disable_verify_ssl()
except (KeyError, NameError):
raise CommandExecutionError('No Pure Storage FlashBlade credentials found.')
try:
blade.login(api_token)
except Exception:
raise CommandExecutionError('Pure Storage FlashBlade authentication failed.')
return blade
def _get_fs(name, blade):
'''
Private function to
check for existance of a filesystem
'''
_fs = []
_fs.append(name)
try:
res = blade.file_systems.list_file_systems(names=_fs)
return res.items[0]
except rest.ApiException:
return None
def _get_snapshot(name, suffix, blade):
'''
Return name of Snapshot
or None
'''
try:
filt = 'source=\'{}\' and suffix=\'{}\''.format(name, suffix)
res = blade.file_system_snapshots.list_file_system_snapshots(filter=filt)
return res.items[0]
except rest.ApiException:
return None
def _get_deleted_fs(name, blade):
'''
Private function to check
if a file systeem has already been deleted
'''
try:
_fs = _get_fs(name, blade)
if _fs and _fs.destroyed:
return _fs
except rest.ApiException:
return None
def snap_create(name, suffix=None):
'''
Create a filesystem snapshot on a Pure Storage FlashBlade.
Will return False if filesystem selected to snap does not exist.
.. versionadded:: 2019.2.0
name : string
name of filesystem to snapshot
suffix : string
if specificed forces snapshot name suffix. If not specified defaults to timestamp.
CLI Example:
.. code-block:: bash
salt '*' purefb.snap_create foo
salt '*' purefb.snap_create foo suffix=bar
'''
blade = _get_blade()
if suffix is None:
suffix = ('snap-' +
six.text_type((datetime.utcnow() -
datetime(1970, 1, 1, 0, 0, 0, 0)).total_seconds()))
suffix = suffix.replace('.', '')
if _get_fs(name, blade) is not None:
try:
source = []
source.append(name)
blade.file_system_snapshots.create_file_system_snapshots(sources=source,
suffix=SnapshotSuffix(suffix))
return True
except rest.ApiException:
return False
else:
return False
def snap_delete(name, suffix=None, eradicate=False):
'''
Delete a filesystem snapshot on a Pure Storage FlashBlade.
Will return False if selected snapshot does not exist.
.. versionadded:: 2019.2.0
name : string
name of filesystem
suffix : string
name of snapshot
eradicate : boolean
Eradicate snapshot after deletion if True. Default is False
CLI Example:
.. code-block:: bash
salt '*' purefb.snap_delete foo suffix=snap eradicate=True
'''
blade = _get_blade()
if _get_snapshot(name, suffix, blade) is not None:
try:
snapname = name + '.' + suffix
new_attr = FileSystemSnapshot(destroyed=True)
blade.file_system_snapshots.update_file_system_snapshots(name=snapname,
attributes=new_attr)
except rest.ApiException:
return False
if eradicate is True:
try:
blade.file_system_snapshots.delete_file_system_snapshots(name=snapname)
return True
except rest.ApiException:
return False
else:
return True
else:
return False
def snap_eradicate(name, suffix=None):
'''
Eradicate a deleted filesystem snapshot on a Pure Storage FlashBlade.
Will return False if snapshot is not in a deleted state.
.. versionadded:: 2019.2.0
name : string
name of filesystem
suffix : string
name of snapshot
CLI Example:
.. code-block:: bash
salt '*' purefb.snap_eradicate foo suffix=snap
'''
blade = _get_blade()
if _get_snapshot(name, suffix, blade) is not None:
snapname = name + '.' + suffix
try:
blade.file_system_snapshots.delete_file_system_snapshots(name=snapname)
return True
except rest.ApiException:
return False
else:
return False
def fs_create(name, size=None, proto='NFS', nfs_rules='*(rw,no_root_squash)', snapshot=False):
'''
Create a filesystem on a Pure Storage FlashBlade.
Will return False if filesystem already exists.
.. versionadded:: 2019.2.0
name : string
name of filesystem (truncated to 63 characters)
proto : string
(Optional) Sharing protocol (NFS, CIFS or HTTP). If not specified default is NFS
snapshot: boolean
(Optional) Are snapshots enabled on the filesystem. Default is False
nfs_rules : string
(Optional) export rules for NFS. If not specified default is
``*(rw,no_root_squash)``. Refer to Pure Storage documentation for
formatting rules.
size : string
if specified capacity of filesystem. If not specified default to 32G.
Refer to Pure Storage documentation for formatting rules.
CLI Example:
.. code-block:: bash
salt '*' purefb.fs_create foo proto=CIFS
salt '*' purefb.fs_create foo size=10T
'''
if len(name) > 63:
name = name[0:63]
blade = _get_blade()
print(proto)
if _get_fs(name, blade) is None:
if size is None:
size = __utils__['stringutils.human_to_bytes']('32G')
else:
size = __utils__['stringutils.human_to_bytes'](size)
if proto.lower() == 'nfs':
fs_obj = FileSystem(name=name,
provisioned=size,
fast_remove_directory_enabled=True,
snapshot_directory_enabled=snapshot,
nfs=NfsRule(enabled=True, rules=nfs_rules),
)
elif proto.lower() == 'cifs':
fs_obj = FileSystem(name=name,
provisioned=size,
fast_remove_directory_enabled=True,
snapshot_directory_enabled=snapshot,
smb=ProtocolRule(enabled=True),
)
elif proto.lower() == 'http':
fs_obj = FileSystem(name=name,
provisioned=size,
fast_remove_directory_enabled=True,
snapshot_directory_enabled=snapshot,
http=ProtocolRule(enabled=True),
)
else:
return False
try:
blade.file_systems.create_file_systems(fs_obj)
return True
except rest.ApiException:
return False
else:
return False
def fs_delete(name, eradicate=False):
'''
Delete a share on a Pure Storage FlashBlade.
Will return False if filesystem doesn't exist or is already in a deleted state.
.. versionadded:: 2019.2.0
name : string
name of filesystem
eradicate : boolean
(Optional) Eradicate filesystem after deletion if True. Default is False
CLI Example:
.. code-block:: bash
salt '*' purefb.fs_delete foo eradicate=True
'''
blade = _get_blade()
if _get_fs(name, blade) is not None:
try:
blade.file_systems.update_file_systems(name=name,
attributes=FileSystem(nfs=NfsRule(enabled=False),
smb=ProtocolRule(enabled=False),
http=ProtocolRule(enabled=False),
destroyed=True)
)
except rest.ApiException:
return False
if eradicate is True:
try:
blade.file_systems.delete_file_systems(name)
return True
except rest.ApiException:
return False
else:
return True
else:
return False
def fs_eradicate(name):
'''
Eradicate a deleted filesystem on a Pure Storage FlashBlade.
Will return False is filesystem is not in a deleted state.
.. versionadded:: 2019.2.0
name : string
name of filesystem
CLI Example:
.. code-block:: bash
salt '*' purefb.fs_eradicate foo
'''
blade = _get_blade()
if _get_deleted_fs(name, blade) is not None:
try:
blade.file_systems.delete_file_systems(name)
return True
except rest.ApiException:
return False
else:
return False
def fs_extend(name, size):
'''
Resize an existing filesystem on a Pure Storage FlashBlade.
Will return False if new size is less than or equal to existing size.
.. versionadded:: 2019.2.0
name : string
name of filesystem
size : string
New capacity of filesystem.
Refer to Pure Storage documentation for formatting rules.
CLI Example:
.. code-block:: bash
salt '*' purefb.fs_extend foo 10T
'''
attr = {}
blade = _get_blade()
_fs = _get_fs(name, blade)
if _fs is not None:
if __utils__['stringutils.human_to_bytes'](size) > _fs.provisioned:
try:
attr['provisioned'] = __utils__['stringutils.human_to_bytes'](size)
n_attr = FileSystem(**attr)
blade.file_systems.update_file_systems(name=name, attributes=n_attr)
return True
except rest.ApiException:
return False
else:
return False
else:
return False
def fs_update(name, rules, snapshot=False):
'''
Update filesystem on a Pure Storage FlashBlade.
Allows for change of NFS export rules and enabling/disabled
of snapshotting capability.
.. versionadded:: 2019.2.0
name : string
name of filesystem
rules : string
NFS export rules for filesystem
Refer to Pure Storage documentation for formatting rules.
snapshot: boolean
(Optional) Enable/Disable snapshots on the filesystem. Default is False
CLI Example:
.. code-block:: bash
salt '*' purefb.fs_nfs_update foo rules='10.234.112.23(ro), 10.234.112.24(rw)' snapshot=True
'''
blade = _get_blade()
attr = {}
_fs = _get_fs(name, blade)
if _fs is not None:
try:
if _fs.nfs.enabled:
attr['nfs'] = NfsRule(rules=rules)
attr['snapshot_directory_enabled'] = snapshot
n_attr = FileSystem(**attr)
blade.file_systems.update_file_systems(name=name, attributes=n_attr)
return True
except rest.ApiException:
return False
else:
return False
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