79 lines
2.3 KiB
Python
79 lines
2.3 KiB
Python
# Copyright 2021 Red Hat, Inc
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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"""
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Helpers for lvm related routines
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"""
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from oslo_concurrency import processutils
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import manila.privsep
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@manila.privsep.sys_admin_pctxt.entrypoint
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def lvremove(vg_name, lv_name):
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processutils.execute('lvremove', '-f', f'{vg_name}/{lv_name}')
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@manila.privsep.sys_admin_pctxt.entrypoint
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def lvcreate(lv_size, lv_name, vg_name, mirrors=0, region_size=0):
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extra_params = []
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if mirrors:
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extra_params += ['-m', mirrors, '--nosync']
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if region_size:
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extra_params += ['-R', region_size]
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processutils.execute(
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'lvcreate', '-Wy', '--yes', '-L', f'{lv_size}G', '-n', lv_name,
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vg_name, *extra_params)
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@manila.privsep.sys_admin_pctxt.entrypoint
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def lv_snapshot_create(snapshot_size, snap_name, orig_lv_name):
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size_str = '%sG' % snapshot_size
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processutils.execute(
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'lvcreate', '-L', size_str, '--name', snap_name,
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'--snapshot', orig_lv_name)
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@manila.privsep.sys_admin_pctxt.entrypoint
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def get_vgs(vg_name):
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out, err = processutils.execute(
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'vgs', vg_name, '--rows', '--units', 'g',)
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return out, err
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@manila.privsep.sys_admin_pctxt.entrypoint
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def list_vgs_get_name():
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out, err = processutils.execute('vgs', '--noheadings', '-o', 'name')
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return out, err
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@manila.privsep.sys_admin_pctxt.entrypoint
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def lvconvert(vg_name, snapshot_name):
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processutils.execute(
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'lvconvert', '--merge', f'{vg_name}/{snapshot_name}')
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@manila.privsep.sys_admin_pctxt.entrypoint
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def lvrename(vg_name, lv_name, new_name):
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processutils.execute(
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'lvrename', vg_name, lv_name, new_name)
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@manila.privsep.sys_admin_pctxt.entrypoint
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def lvextend(lv_name, new_size):
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processutils.execute('lvextend', '-L', '%sG' % new_size, '-r', lv_name)
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