Spring cleaning time. :)
I removed all the old files, inventory, playbooks, roles and other from services we no longer run or use. There was a bunch of cruft in there and I hope that will make the repo cleaner and easier to look for things we actually do run and care about. Signed-off-by: Kevin Fenzi <kevin@scrye.com>
This commit is contained in:
Kevin Fenzi
parent
0eca617652
commit
c529380547
200 changed files with 4 additions and 6667 deletions
401
library/lvol.py
401
library/lvol.py
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#!/usr/bin/python
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# -*- coding: utf-8 -*-
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# (c) 2013, Jeroen Hoekx <jeroen.hoekx@dsquare.be>, Alexander Bulimov <lazywolf0@gmail.com>
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#
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# This file is part of Ansible
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#
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# Ansible is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# Ansible is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with Ansible. If not, see <http://www.gnu.org/licenses/>.
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DOCUMENTATION = '''
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---
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author:
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- "Jeroen Hoekx (@jhoekx)"
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- "Alexander Bulimov (@abulimov)"
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module: lvol
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short_description: Configure LVM logical volumes
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description:
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- This module creates, removes or resizes logical volumes.
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version_added: "1.1"
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options:
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vg:
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description:
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- The volume group this logical volume is part of.
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required: true
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lv:
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description:
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- The name of the logical volume.
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required: true
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size:
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description:
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- The size of the logical volume, according to lvcreate(8) --size, by
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default in megabytes or optionally with one of [bBsSkKmMgGtTpPeE] units; or
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according to lvcreate(8) --extents as a percentage of [VG|PVS|FREE];
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Float values must begin with a digit.
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Resizing using percentage values was not supported prior to 2.1.
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state:
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choices: [ "present", "absent" ]
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default: present
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description:
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- Control if the logical volume exists. If C(present) the C(size) option
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is required.
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required: false
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force:
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version_added: "1.5"
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choices: [ "yes", "no" ]
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default: "no"
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description:
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- Shrink or remove operations of volumes requires this switch. Ensures that
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that filesystems get never corrupted/destroyed by mistake.
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required: false
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opts:
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version_added: "2.0"
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description:
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- Free-form options to be passed to the lvcreate command
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snapshot:
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version_added: "2.1"
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description:
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- The name of the snapshot volume
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required: false
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pvs:
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version_added: "2.2"
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description:
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- Comma separated list of physical volumes e.g. /dev/sda,/dev/sdb
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required: false
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shrink:
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version_added: "2.2"
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description:
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- shrink if current size is higher than size requested
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required: false
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default: yes
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notes:
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- Filesystems on top of the volume are not resized.
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'''
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EXAMPLES = '''
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# Create a logical volume of 512m.
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- lvol: vg=firefly lv=test size=512
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# Create a logical volume of 512m with disks /dev/sda and /dev/sdb
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- lvol: vg=firefly lv=test size=512 pvs=/dev/sda,/dev/sdb
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# Create cache pool logical volume
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- lvol: vg=firefly lv=lvcache size=512m opts='--type cache-pool'
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# Create a logical volume of 512g.
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- lvol: vg=firefly lv=test size=512g
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# Create a logical volume the size of all remaining space in the volume group
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- lvol: vg=firefly lv=test size=100%FREE
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# Create a logical volume with special options
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- lvol: vg=firefly lv=test size=512g opts="-r 16"
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# Extend the logical volume to 1024m.
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- lvol: vg=firefly lv=test size=1024
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# Extend the logical volume to consume all remaining space in the volume group
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- lvol: vg=firefly lv=test size=+100%FREE
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# Extend the logical volume to take all remaining space of the PVs
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- lvol: vg=firefly lv=test size=100%PVS
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# Resize the logical volume to % of VG
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- lvol: vg-firefly lv=test size=80%VG force=yes
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# Reduce the logical volume to 512m
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- lvol: vg=firefly lv=test size=512 force=yes
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# Set the logical volume to 512m and do not try to shrink if size is lower than current one
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- lvol: vg=firefly lv=test size=512 shrink=no
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# Remove the logical volume.
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- lvol: vg=firefly lv=test state=absent force=yes
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# Create a snapshot volume of the test logical volume.
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- lvol: vg=firefly lv=test snapshot=snap1 size=100m
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'''
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import re
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decimal_point = re.compile(r"(\d+)")
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def mkversion(major, minor, patch):
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return (1000 * 1000 * int(major)) + (1000 * int(minor)) + int(patch)
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def parse_lvs(data):
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lvs = []
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for line in data.splitlines():
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parts = line.strip().split(';')
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lvs.append({
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'name': parts[0].replace('[','').replace(']',''),
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'size': int(decimal_point.match(parts[1]).group(1))
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})
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return lvs
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def parse_vgs(data):
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vgs = []
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for line in data.splitlines():
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parts = line.strip().split(';')
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vgs.append({
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'name': parts[0],
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'size': int(decimal_point.match(parts[1]).group(1)),
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'free': int(decimal_point.match(parts[2]).group(1)),
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'ext_size': int(decimal_point.match(parts[3]).group(1))
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})
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return vgs
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def get_lvm_version(module):
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ver_cmd = module.get_bin_path("lvm", required=True)
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rc, out, err = module.run_command("%s version" % (ver_cmd))
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if rc != 0:
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return None
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m = re.search("LVM version:\s+(\d+)\.(\d+)\.(\d+).*(\d{4}-\d{2}-\d{2})", out)
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if not m:
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return None
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return mkversion(m.group(1), m.group(2), m.group(3))
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def main():
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module = AnsibleModule(
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argument_spec=dict(
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vg=dict(required=True),
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lv=dict(required=True),
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size=dict(type='str'),
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opts=dict(type='str'),
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state=dict(choices=["absent", "present"], default='present'),
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force=dict(type='bool', default='no'),
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shrink=dict(type='bool', default='yes'),
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snapshot=dict(type='str', default=None),
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pvs=dict(type='str')
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),
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supports_check_mode=True,
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)
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# Determine if the "--yes" option should be used
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version_found = get_lvm_version(module)
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if version_found == None:
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module.fail_json(msg="Failed to get LVM version number")
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version_yesopt = mkversion(2, 2, 99) # First LVM with the "--yes" option
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if version_found >= version_yesopt:
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yesopt = "--yes"
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else:
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yesopt = ""
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vg = module.params['vg']
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lv = module.params['lv']
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size = module.params['size']
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opts = module.params['opts']
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state = module.params['state']
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force = module.boolean(module.params['force'])
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shrink = module.boolean(module.params['shrink'])
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size_opt = 'L'
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size_unit = 'm'
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snapshot = module.params['snapshot']
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pvs = module.params['pvs']
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if pvs is None:
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pvs = ""
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else:
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pvs = pvs.replace(",", " ")
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if opts is None:
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opts = ""
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# Add --test option when running in check-mode
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if module.check_mode:
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test_opt = ' --test'
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else:
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test_opt = ''
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if size:
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# LVCREATE(8) -l --extents option with percentage
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if '%' in size:
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size_parts = size.split('%', 1)
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size_percent = int(size_parts[0])
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if size_percent > 100:
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module.fail_json(msg="Size percentage cannot be larger than 100%")
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size_whole = size_parts[1]
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if size_whole == 'ORIGIN':
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module.fail_json(msg="Snapshot Volumes are not supported")
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elif size_whole not in ['VG', 'PVS', 'FREE']:
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module.fail_json(msg="Specify extents as a percentage of VG|PVS|FREE")
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size_opt = 'l'
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size_unit = ''
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if not '%' in size:
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# LVCREATE(8) -L --size option unit
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if size[-1].lower() in 'bskmgtpe':
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size_unit = size[-1].lower()
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size = size[0:-1]
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try:
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float(size)
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if not size[0].isdigit(): raise ValueError()
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except ValueError:
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module.fail_json(msg="Bad size specification of '%s'" % size)
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# when no unit, megabytes by default
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if size_opt == 'l':
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unit = 'm'
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else:
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unit = size_unit
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# Get information on volume group requested
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vgs_cmd = module.get_bin_path("vgs", required=True)
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rc, current_vgs, err = module.run_command(
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"%s --noheadings -o vg_name,size,free,vg_extent_size --units %s --separator ';' %s" % (vgs_cmd, unit, vg))
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if rc != 0:
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if state == 'absent':
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module.exit_json(changed=False, stdout="Volume group %s does not exist." % vg, stderr=False)
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else:
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module.fail_json(msg="Volume group %s does not exist." % vg, rc=rc, err=err)
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vgs = parse_vgs(current_vgs)
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this_vg = vgs[0]
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# Get information on logical volume requested
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lvs_cmd = module.get_bin_path("lvs", required=True)
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rc, current_lvs, err = module.run_command(
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"%s -a --noheadings --nosuffix -o lv_name,size --units %s --separator ';' %s" % (lvs_cmd, unit, vg))
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if rc != 0:
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if state == 'absent':
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module.exit_json(changed=False, stdout="Volume group %s does not exist." % vg, stderr=False)
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else:
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module.fail_json(msg="Volume group %s does not exist." % vg, rc=rc, err=err)
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changed = False
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lvs = parse_lvs(current_lvs)
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if snapshot is None:
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check_lv = lv
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else:
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check_lv = snapshot
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for test_lv in lvs:
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if test_lv['name'] == check_lv:
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this_lv = test_lv
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break
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else:
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this_lv = None
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if state == 'present' and not size:
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if this_lv is None:
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module.fail_json(msg="No size given.")
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else:
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module.exit_json(changed=False, vg=vg, lv=this_lv['name'], size=this_lv['size'])
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msg = ''
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if this_lv is None:
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if state == 'present':
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### create LV
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lvcreate_cmd = module.get_bin_path("lvcreate", required=True)
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if snapshot is not None:
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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)
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else:
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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)
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rc, _, err = module.run_command(cmd)
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if rc == 0:
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changed = True
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else:
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module.fail_json(msg="Creating logical volume '%s' failed" % lv, rc=rc, err=err)
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else:
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if state == 'absent':
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### remove LV
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if not force:
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module.fail_json(msg="Sorry, no removal of logical volume %s without force=yes." % (this_lv['name']))
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lvremove_cmd = module.get_bin_path("lvremove", required=True)
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rc, _, err = module.run_command("%s %s --force %s/%s" % (lvremove_cmd, test_opt, vg, this_lv['name']))
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if rc == 0:
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module.exit_json(changed=True)
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else:
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module.fail_json(msg="Failed to remove logical volume %s" % (lv), rc=rc, err=err)
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elif size_opt == 'l':
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### Resize LV based on % value
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tool = None
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size_free = this_vg['free']
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if size_whole == 'VG' or size_whole == 'PVS':
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size_requested = size_percent * this_vg['size'] / 100
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else: # size_whole == 'FREE':
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size_requested = size_percent * this_vg['free'] / 100
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if '+' in size:
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size_requested += this_lv['size']
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if this_lv['size'] < size_requested:
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if (size_free > 0) and (('+' not in size) or (size_free >= (size_requested - this_lv['size']))):
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tool = module.get_bin_path("lvextend", required=True)
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else:
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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))
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elif shrink and this_lv['size'] > size_requested + this_vg['ext_size']: # more than an extent too large
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if size_requested == 0:
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module.fail_json(msg="Sorry, no shrinking of %s to 0 permitted." % (this_lv['name']))
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elif not force:
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module.fail_json(msg="Sorry, no shrinking of %s without force=yes" % (this_lv['name']))
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else:
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tool = module.get_bin_path("lvreduce", required=True)
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tool = '%s %s' % (tool, '--force')
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if tool:
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cmd = "%s %s -%s %s%s %s/%s %s" % (tool, test_opt, size_opt, size, size_unit, vg, this_lv['name'], pvs)
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rc, out, err = module.run_command(cmd)
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if "Reached maximum COW size" in out:
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module.fail_json(msg="Unable to resize %s to %s%s" % (lv, size, size_unit), rc=rc, err=err, out=out)
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elif rc == 0:
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changed = True
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msg="Volume %s resized to %s%s" % (this_lv['name'], size_requested, unit)
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elif "matches existing size" in err:
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module.exit_json(changed=False, vg=vg, lv=this_lv['name'], size=this_lv['size'])
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elif "not larger than existing size" in err:
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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)
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else:
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module.fail_json(msg="Unable to resize %s to %s%s" % (lv, size, size_unit), rc=rc, err=err)
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else:
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### resize LV based on absolute values
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tool = None
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if int(size) > this_lv['size']:
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tool = module.get_bin_path("lvextend", required=True)
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elif shrink and int(size) < this_lv['size']:
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if int(size) == 0:
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module.fail_json(msg="Sorry, no shrinking of %s to 0 permitted." % (this_lv['name']))
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if not force:
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module.fail_json(msg="Sorry, no shrinking of %s without force=yes." % (this_lv['name']))
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else:
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tool = module.get_bin_path("lvreduce", required=True)
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tool = '%s %s' % (tool, '--force')
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if tool:
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cmd = "%s %s -%s %s%s %s/%s %s" % (tool, test_opt, size_opt, size, size_unit, vg, this_lv['name'], pvs)
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rc, out, err = module.run_command(cmd)
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if "Reached maximum COW size" in out:
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module.fail_json(msg="Unable to resize %s to %s%s" % (lv, size, size_unit), rc=rc, err=err, out=out)
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elif rc == 0:
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changed = True
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elif "matches existing size" in err:
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module.exit_json(changed=False, vg=vg, lv=this_lv['name'], size=this_lv['size'])
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elif "not larger than existing size" in err:
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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)
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else:
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module.fail_json(msg="Unable to resize %s to %s%s" % (lv, size, size_unit), rc=rc, err=err)
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module.exit_json(changed=changed, msg=msg)
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# import module snippets
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from ansible.module_utils.basic import *
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if __name__ == '__main__':
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main()
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