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ansible-later/env_27/lib/python2.7/site-packages/ansible/modules/system/lvol.py
Robert Kaussow 04dec26a3a add missing dependencies and fix drone pipeline
2019-04-11 13:00:36 +02:00

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#!/usr/bin/python
# -*- coding: utf-8 -*-
# Copyright: (c) 2013, Jeroen Hoekx <jeroen.hoekx@dsquare.be>, Alexander Bulimov <lazywolf0@gmail.com>
# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
from __future__ import absolute_import, division, print_function
__metaclass__ = type
ANSIBLE_METADATA = {'metadata_version': '1.1',
'status': ['preview'],
'supported_by': 'community'}
DOCUMENTATION = '''
---
author:
- Jeroen Hoekx (@jhoekx)
- Alexander Bulimov (@abulimov)
module: lvol
short_description: Configure LVM logical volumes
description:
- This module creates, removes or resizes logical volumes.
version_added: "1.1"
options:
vg:
description:
- The volume group this logical volume is part of.
lv:
description:
- The name of the logical volume.
size:
description:
- The size of the logical volume, according to lvcreate(8) --size, by
default in megabytes or optionally with one of [bBsSkKmMgGtTpPeE] units; or
according to lvcreate(8) --extents as a percentage of [VG|PVS|FREE];
Float values must begin with a digit.
Resizing using percentage values was not supported prior to 2.1.
state:
description:
- Control if the logical volume exists. If C(present) and the
volume does not already exist then the C(size) option is required.
choices: [ absent, present ]
default: present
active:
description:
- Whether the volume is activate and visible to the host.
type: bool
default: 'yes'
version_added: "2.2"
force:
description:
- Shrink or remove operations of volumes requires this switch. Ensures that
that filesystems get never corrupted/destroyed by mistake.
type: bool
default: 'no'
version_added: "1.5"
opts:
description:
- Free-form options to be passed to the lvcreate command.
version_added: "2.0"
snapshot:
description:
- The name of the snapshot volume
version_added: "2.1"
pvs:
description:
- Comma separated list of physical volumes (e.g. /dev/sda,/dev/sdb).
version_added: "2.2"
thinpool:
description:
- The thin pool volume name. When you want to create a thin provisioned volume, specify a thin pool volume name.
version_added: "2.5"
shrink:
description:
- Shrink if current size is higher than size requested.
type: bool
default: 'yes'
version_added: "2.2"
resizefs:
description:
- Resize the underlying filesystem together with the logical volume.
type: bool
default: 'no'
version_added: "2.5"
notes:
- You must specify lv (when managing the state of logical volumes) or thinpool (when managing a thin provisioned volume).
'''
EXAMPLES = '''
- name: Create a logical volume of 512m
lvol:
vg: firefly
lv: test
size: 512
- name: Create a logical volume of 512m with disks /dev/sda and /dev/sdb
lvol:
vg: firefly
lv: test
size: 512
pvs: /dev/sda,/dev/sdb
- name: Create cache pool logical volume
lvol:
vg: firefly
lv: lvcache
size: 512m
opts: --type cache-pool
- name: Create a logical volume of 512g.
lvol:
vg: firefly
lv: test
size: 512g
- name: Create a logical volume the size of all remaining space in the volume group
lvol:
vg: firefly
lv: test
size: 100%FREE
- name: Create a logical volume with special options
lvol:
vg: firefly
lv: test
size: 512g
opts: -r 16
- name: Extend the logical volume to 1024m.
lvol:
vg: firefly
lv: test
size: 1024
- name: Extend the logical volume to consume all remaining space in the volume group
lvol:
vg: firefly
lv: test
size: +100%FREE
- name: Extend the logical volume to take all remaining space of the PVs and resize the underlying filesystem
lvol:
vg: firefly
lv: test
size: 100%PVS
resizefs: true
- name: Resize the logical volume to % of VG
lvol:
vg: firefly
lv: test
size: 80%VG
force: yes
- name: Reduce the logical volume to 512m
lvol:
vg: firefly
lv: test
size: 512
force: yes
- name: Set the logical volume to 512m and do not try to shrink if size is lower than current one
lvol:
vg: firefly
lv: test
size: 512
shrink: no
- name: Remove the logical volume.
lvol:
vg: firefly
lv: test
state: absent
force: yes
- name: Create a snapshot volume of the test logical volume.
lvol:
vg: firefly
lv: test
snapshot: snap1
size: 100m
- name: Deactivate a logical volume
lvol:
vg: firefly
lv: test
active: false
- name: Create a deactivated logical volume
lvol:
vg: firefly
lv: test
size: 512g
active: false
- name: Create a thin pool of 512g
lvol:
vg: firefly
thinpool: testpool
size: 512g
- name: Create a thin volume of 128g
lvol:
vg: firefly
lv: test
thinpool: testpool
size: 128g
'''
import re
from ansible.module_utils.basic import AnsibleModule
LVOL_ENV_VARS = dict(
# make sure we use the C locale when running lvol-related commands
LANG='C',
LC_ALL='C',
LC_MESSAGES='C',
LC_CTYPE='C',
)
def mkversion(major, minor, patch):
return (1000 * 1000 * int(major)) + (1000 * int(minor)) + int(patch)
def parse_lvs(data):
lvs = []
for line in data.splitlines():
parts = line.strip().split(';')
lvs.append({
'name': parts[0].replace('[', '').replace(']', ''),
'size': float(parts[1]),
'active': (parts[2][4] == 'a'),
'thinpool': (parts[2][0] == 't'),
'thinvol': (parts[2][0] == 'V'),
})
return lvs
def parse_vgs(data):
vgs = []
for line in data.splitlines():
parts = line.strip().split(';')
vgs.append({
'name': parts[0],
'size': float(parts[1]),
'free': float(parts[2]),
'ext_size': float(parts[3])
})
return vgs
def get_lvm_version(module):
ver_cmd = module.get_bin_path("lvm", required=True)
rc, out, err = module.run_command("%s version" % (ver_cmd))
if rc != 0:
return None
m = re.search(r"LVM version:\s+(\d+)\.(\d+)\.(\d+).*(\d{4}-\d{2}-\d{2})", out)
if not m:
return None
return mkversion(m.group(1), m.group(2), m.group(3))
def main():
module = AnsibleModule(
argument_spec=dict(
vg=dict(type='str', required=True),
lv=dict(type='str'),
size=dict(type='str'),
opts=dict(type='str'),
state=dict(type='str', default='present', choices=['absent', 'present']),
force=dict(type='bool', default=False),
shrink=dict(type='bool', default=True),
active=dict(type='bool', default=True),
snapshot=dict(type='str'),
pvs=dict(type='str'),
resizefs=dict(type='bool', default=False),
thinpool=dict(type='str'),
),
supports_check_mode=True,
required_one_of=(
['lv', 'thinpool'],
),
)
module.run_command_environ_update = LVOL_ENV_VARS
# Determine if the "--yes" option should be used
version_found = get_lvm_version(module)
if version_found is None:
module.fail_json(msg="Failed to get LVM version number")
version_yesopt = mkversion(2, 2, 99) # First LVM with the "--yes" option
if version_found >= version_yesopt:
yesopt = "--yes"
else:
yesopt = ""
vg = module.params['vg']
lv = module.params['lv']
size = module.params['size']
opts = module.params['opts']
state = module.params['state']
force = module.boolean(module.params['force'])
shrink = module.boolean(module.params['shrink'])
active = module.boolean(module.params['active'])
resizefs = module.boolean(module.params['resizefs'])
thinpool = module.params['thinpool']
size_opt = 'L'
size_unit = 'm'
snapshot = module.params['snapshot']
pvs = module.params['pvs']
if pvs is None:
pvs = ""
else:
pvs = pvs.replace(",", " ")
if opts is None:
opts = ""
# Add --test option when running in check-mode
if module.check_mode:
test_opt = ' --test'
else:
test_opt = ''
if size:
# LVCREATE(8) -l --extents option with percentage
if '%' in size:
size_parts = size.split('%', 1)
size_percent = int(size_parts[0])
if size_percent > 100:
module.fail_json(msg="Size percentage cannot be larger than 100%")
size_whole = size_parts[1]
if size_whole == 'ORIGIN':
module.fail_json(msg="Snapshot Volumes are not supported")
elif size_whole not in ['VG', 'PVS', 'FREE']:
module.fail_json(msg="Specify extents as a percentage of VG|PVS|FREE")
size_opt = 'l'
size_unit = ''
if '%' not in size:
# LVCREATE(8) -L --size option unit
if size[-1].lower() in 'bskmgtpe':
size_unit = size[-1].lower()
size = size[0:-1]
try:
float(size)
if not size[0].isdigit():
raise ValueError()
except ValueError:
module.fail_json(msg="Bad size specification of '%s'" % size)
# when no unit, megabytes by default
if size_opt == 'l':
unit = 'm'
else:
unit = size_unit
# Get information on volume group requested
vgs_cmd = module.get_bin_path("vgs", required=True)
rc, current_vgs, err = module.run_command(
"%s --noheadings --nosuffix -o vg_name,size,free,vg_extent_size --units %s --separator ';' %s" % (vgs_cmd, unit, vg))
if rc != 0:
if state == 'absent':
module.exit_json(changed=False, stdout="Volume group %s does not exist." % vg)
else:
module.fail_json(msg="Volume group %s does not exist." % vg, rc=rc, err=err)
vgs = parse_vgs(current_vgs)
this_vg = vgs[0]
# Get information on logical volume requested
lvs_cmd = module.get_bin_path("lvs", required=True)
rc, current_lvs, err = module.run_command(
"%s -a --noheadings --nosuffix -o lv_name,size,lv_attr --units %s --separator ';' %s" % (lvs_cmd, unit, vg))
if rc != 0:
if state == 'absent':
module.exit_json(changed=False, stdout="Volume group %s does not exist." % vg)
else:
module.fail_json(msg="Volume group %s does not exist." % vg, rc=rc, err=err)
changed = False
lvs = parse_lvs(current_lvs)
if snapshot:
# Check snapshot pre-conditions
for test_lv in lvs:
if test_lv['name'] == lv or test_lv['name'] == thinpool:
if not test_lv['thinpool'] and not thinpool:
break
else:
module.fail_json(msg="Snapshots of thin pool LVs are not supported.")
else:
module.fail_json(msg="Snapshot origin LV %s does not exist in volume group %s." % (lv, vg))
check_lv = snapshot
elif thinpool:
if lv:
# Check thin volume pre-conditions
for test_lv in lvs:
if test_lv['name'] == thinpool:
break
else:
module.fail_json(msg="Thin pool LV %s does not exist in volume group %s." % (thinpool, vg))
check_lv = lv
else:
check_lv = thinpool
else:
check_lv = lv
for test_lv in lvs:
if test_lv['name'] in (check_lv, check_lv.rsplit('/', 1)[-1]):
this_lv = test_lv
break
else:
this_lv = None
msg = ''
if this_lv is None:
if state == 'present':
# Require size argument except for snapshot of thin volumes
if (lv or thinpool) and not size:
for test_lv in lvs:
if test_lv['name'] == lv and test_lv['thinvol'] and snapshot:
break
else:
module.fail_json(msg="No size given.")
# create LV
lvcreate_cmd = module.get_bin_path("lvcreate", required=True)
if snapshot is not None:
if size:
cmd = "%s %s %s -%s %s%s -s -n %s %s %s/%s" % (lvcreate_cmd, test_opt, yesopt, size_opt, size, size_unit, snapshot, opts, vg, lv)
else:
cmd = "%s %s %s -s -n %s %s %s/%s" % (lvcreate_cmd, test_opt, yesopt, snapshot, opts, vg, lv)
elif thinpool and lv:
if size_opt == 'l':
module.fail_json(changed=False, msg="Thin volume sizing with percentage not supported.")
size_opt = 'V'
cmd = "%s %s -n %s -%s %s%s %s -T %s/%s" % (lvcreate_cmd, yesopt, lv, size_opt, size, size_unit, opts, vg, thinpool)
elif thinpool and not lv:
cmd = "%s %s -%s %s%s %s -T %s/%s" % (lvcreate_cmd, yesopt, size_opt, size, size_unit, opts, vg, thinpool)
else:
cmd = "%s %s %s -n %s -%s %s%s %s %s %s" % (lvcreate_cmd, test_opt, yesopt, lv, size_opt, size, size_unit, opts, vg, pvs)
rc, _, err = module.run_command(cmd)
if rc == 0:
changed = True
else:
module.fail_json(msg="Creating logical volume '%s' failed" % lv, rc=rc, err=err)
else:
if state == 'absent':
# remove LV
if not force:
module.fail_json(msg="Sorry, no removal of logical volume %s without force=yes." % (this_lv['name']))
lvremove_cmd = module.get_bin_path("lvremove", required=True)
rc, _, err = module.run_command("%s %s --force %s/%s" % (lvremove_cmd, test_opt, vg, this_lv['name']))
if rc == 0:
module.exit_json(changed=True)
else:
module.fail_json(msg="Failed to remove logical volume %s" % (lv), rc=rc, err=err)
elif not size:
pass
elif size_opt == 'l':
# Resize LV based on % value
tool = None
size_free = this_vg['free']
if size_whole == 'VG' or size_whole == 'PVS':
size_requested = size_percent * this_vg['size'] / 100
else: # size_whole == 'FREE':
size_requested = size_percent * this_vg['free'] / 100
if '+' in size:
size_requested += this_lv['size']
if this_lv['size'] < size_requested:
if (size_free > 0) and (('+' not in size) or (size_free >= (size_requested - this_lv['size']))):
tool = module.get_bin_path("lvextend", required=True)
else:
module.fail_json(
msg="Logical Volume %s could not be extended. Not enough free space left (%s%s required / %s%s available)" %
(this_lv['name'], (size_requested - this_lv['size']), unit, size_free, unit)
)
elif shrink and this_lv['size'] > size_requested + this_vg['ext_size']: # more than an extent too large
if size_requested == 0:
module.fail_json(msg="Sorry, no shrinking of %s to 0 permitted." % (this_lv['name']))
elif not force:
module.fail_json(msg="Sorry, no shrinking of %s without force=yes" % (this_lv['name']))
else:
tool = module.get_bin_path("lvreduce", required=True)
tool = '%s %s' % (tool, '--force')
if tool:
if resizefs:
tool = '%s %s' % (tool, '--resizefs')
cmd = "%s %s -%s %s%s %s/%s %s" % (tool, test_opt, size_opt, size, size_unit, vg, this_lv['name'], pvs)
rc, out, err = module.run_command(cmd)
if "Reached maximum COW size" in out:
module.fail_json(msg="Unable to resize %s to %s%s" % (lv, size, size_unit), rc=rc, err=err, out=out)
elif rc == 0:
changed = True
msg = "Volume %s resized to %s%s" % (this_lv['name'], size_requested, unit)
elif "matches existing size" in err:
module.exit_json(changed=False, vg=vg, lv=this_lv['name'], size=this_lv['size'])
elif "not larger than existing size" in err:
module.exit_json(changed=False, vg=vg, lv=this_lv['name'], size=this_lv['size'], msg="Original size is larger than requested size", err=err)
else:
module.fail_json(msg="Unable to resize %s to %s%s" % (lv, size, size_unit), rc=rc, err=err)
else:
# resize LV based on absolute values
tool = None
if float(size) > this_lv['size']:
tool = module.get_bin_path("lvextend", required=True)
elif shrink and float(size) < this_lv['size']:
if float(size) == 0:
module.fail_json(msg="Sorry, no shrinking of %s to 0 permitted." % (this_lv['name']))
if not force:
module.fail_json(msg="Sorry, no shrinking of %s without force=yes." % (this_lv['name']))
else:
tool = module.get_bin_path("lvreduce", required=True)
tool = '%s %s' % (tool, '--force')
if tool:
if resizefs:
tool = '%s %s' % (tool, '--resizefs')
cmd = "%s %s -%s %s%s %s/%s %s" % (tool, test_opt, size_opt, size, size_unit, vg, this_lv['name'], pvs)
rc, out, err = module.run_command(cmd)
if "Reached maximum COW size" in out:
module.fail_json(msg="Unable to resize %s to %s%s" % (lv, size, size_unit), rc=rc, err=err, out=out)
elif rc == 0:
changed = True
elif "matches existing size" in err:
module.exit_json(changed=False, vg=vg, lv=this_lv['name'], size=this_lv['size'])
elif "not larger than existing size" in err:
module.exit_json(changed=False, vg=vg, lv=this_lv['name'], size=this_lv['size'], msg="Original size is larger than requested size", err=err)
else:
module.fail_json(msg="Unable to resize %s to %s%s" % (lv, size, size_unit), rc=rc, err=err)
if this_lv is not None:
if active:
lvchange_cmd = module.get_bin_path("lvchange", required=True)
rc, _, err = module.run_command("%s -ay %s/%s" % (lvchange_cmd, vg, this_lv['name']))
if rc == 0:
module.exit_json(changed=((not this_lv['active']) or changed), vg=vg, lv=this_lv['name'], size=this_lv['size'])
else:
module.fail_json(msg="Failed to activate logical volume %s" % (lv), rc=rc, err=err)
else:
lvchange_cmd = module.get_bin_path("lvchange", required=True)
rc, _, err = module.run_command("%s -an %s/%s" % (lvchange_cmd, vg, this_lv['name']))
if rc == 0:
module.exit_json(changed=(this_lv['active'] or changed), vg=vg, lv=this_lv['name'], size=this_lv['size'])
else:
module.fail_json(msg="Failed to deactivate logical volume %s" % (lv), rc=rc, err=err)
module.exit_json(changed=changed, msg=msg)
if __name__ == '__main__':
main()
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