Added zfs module
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Johan Wirén
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library/zfs
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library/zfs
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#!/usr/bin/python
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# -*- coding: utf-8 -*-
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# (c) 2013, Johan Wiren <johan.wiren.se@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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#
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DOCUMENTATION = '''
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---
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module: zfs
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short_description: Manage zfs
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description:
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- Manages ZFS file systems on Solaris and FreeBSD. Can manage file systems, volumes
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and snapshots. Supports the following options from zfs(1M) (See the man page for
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more information):
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aclinherit
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aclmode
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atime
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canmount
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casesensitivity
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checksum
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compression
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copies
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dedup
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devices
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exec
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jailed
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logbias
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mountpoint
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nbmand
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normalization
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primarycache
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quota
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readonly
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recordsize
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refquota
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refreservation
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reservation
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secondarycache
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setuid
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shareiscsi
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sharenfs
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sharesmb
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snapdir
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sync
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utf8only
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volsize
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volblocksize
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vscan
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xattr
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zoned
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options:
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name:
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description:
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- File system, snapshot or volume name e.g. C(rpool/myfs)
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required: true
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state:
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description:
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- Whether to create (C(present)), or remove (C(absent)) a file system, snapshot or volume.
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required: true
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choices: [present, absent]
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examples:
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- code: zfs name=rpool/myfs state=present
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description: Create a new file system called myfs in pool rpool
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- code: zfs name=rpool/myvol state=present volsize=10M
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description: Create a new volume called myvol in pool rpool.
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- code: zfs name=rpool/myfs@mysnapshot state=present
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description: Create a snapshot of rpool/myfs file system.
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- code: zfs name=rpool/myfs2 state=present snapdir=enabled
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description: Create a new file system called myfs2 whith snapdir enabled
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author: Johan Wiren
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'''
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import os
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class Zfs(object):
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def __init__(self, module, name, properties):
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self.module = module
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self.name = name
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self.properties = properties
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self.changed = False
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self.immutable_properties = [ 'casesensitivity', 'normalization', 'utf8only' ]
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def exists(self):
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cmd = [self.module.get_bin_path('zfs', True)]
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cmd.append('list')
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cmd.append('-t all')
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cmd.append(self.name)
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(rc, out, err) = self.module.run_command(' '.join(cmd))
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if rc == 0:
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return True
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else:
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return False
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def create(self):
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properties=self.properties
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volsize = properties.pop('volsize', None)
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volblocksize = properties.pop('volblocksize', None)
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if "@" in self.name:
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action = 'snapshot'
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else:
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action = 'create'
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cmd = [self.module.get_bin_path('zfs', True)]
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cmd.append(action)
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if volblocksize:
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cmd.append('-b %s' % volblocksize)
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if properties:
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for prop, value in properties.iteritems():
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cmd.append('-o %s=%s' % (prop, value))
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if volsize:
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cmd.append('-V')
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cmd.append(volsize)
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cmd.append(self.name)
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(rc, err, out) = self.module.run_command(' '.join(cmd))
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if rc == 0:
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self.changed=True
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else:
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self.module.fail_json(msg=out)
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def destroy(self):
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cmd = [self.module.get_bin_path('zfs', True)]
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cmd.append('destroy')
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cmd.append(self.name)
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(rc, err, out) = self.module.run_command(' '.join(cmd))
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if rc == 0:
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self.changed = True
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else:
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self.module.fail_json(msg=out)
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def set_property(self, prop, value):
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cmd = [self.module.get_bin_path('zfs', True)]
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cmd.append('set')
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cmd.append(prop + '=' + value)
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cmd.append(self.name)
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(rc, err, out) = self.module.run_command(' '.join(cmd))
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if rc == 0:
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self.changed = True
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else:
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self.module.fail_json(msg=out)
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def set_properties_if_changed(self):
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current_properties = self.get_current_properties()
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for prop, value in self.properties.iteritems():
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if current_properties[prop] != value:
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if prop in self.immutable_properties:
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self.module.fail_json(msg='Cannot change property %s after creation.' % prop)
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else:
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self.set_property(prop, value)
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def get_current_properties(self):
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cmd = [self.module.get_bin_path('zfs', True)]
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cmd.append('get -H all')
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cmd.append(self.name)
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rc, out, err = self.module.run_command(' '.join(cmd))
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properties=dict()
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for l in out.splitlines():
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p, v = l.split()[1:3]
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properties[p] = v
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return properties
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def run_command(self, cmd):
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progname = cmd[0]
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cmd[0] = module.get_bin_path(progname, True)
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return module.run_command(cmd)
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def main():
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module = AnsibleModule(
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argument_spec = {
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'name': {'required': True},
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'state': {'required': True, 'choices':['present', 'absent']},
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'aclinherit': {'required': False, 'choices':['discard', 'noallow', 'restricted', 'passthrough', 'passthrough-x']},
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'aclmode': {'required': False, 'choices':['discard', 'groupmask', 'passthrough']},
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'atime': {'required': False, 'choices':['on', 'off']},
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'canmount': {'required': False, 'choices':['on', 'off', 'noauto']},
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'casesensitivity': {'required': False, 'choices':['sensitive', 'insensitive', 'mixed']},
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'checksum': {'required': False, 'choices':['on', 'off', 'fletcher2', 'fletcher4', 'sha256']},
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'compression': {'required': False, 'choices':['on', 'off', 'lzjb', 'gzip', 'gzip-1', 'gzip-2', 'gzip-3', 'gzip-4', 'gzip-5', 'gzip-6', 'gzip-7', 'gzip-8', 'gzip-9']},
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'copies': {'required': False, 'choices':['1', '2', '3']},
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'dedup': {'required': False, 'choices':['on', 'off']},
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'devices': {'required': False, 'choices':['on', 'off']},
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'exec': {'required': False, 'choices':['on', 'off']},
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# Not supported
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#'groupquota': {'required': False},
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'jailed': {'required': False, 'choices':['on', 'off']},
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'logbias': {'required': False, 'choices':['latency', 'throughput']},
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'mountpoint': {'required': False},
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'nbmand': {'required': False, 'choices':['on', 'off']},
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'normalization': {'required': False, 'choices':['none', 'formC', 'formD', 'formKC', 'formKD']},
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'primarycache': {'required': False, 'choices':['all', 'none', 'metadata']},
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'quota': {'required': False},
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'readonly': {'required': False, 'choices':['on', 'off']},
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'recordsize': {'required': False},
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'refquota': {'required': False},
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'refreservation': {'required': False},
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'reservation': {'required': False},
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'secondarycache': {'required': False, 'choices':['all', 'none', 'metadata']},
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'setuid': {'required': False, 'choices':['on', 'off']},
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'shareiscsi': {'required': False, 'choices':['on', 'off']},
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'sharenfs': {'required': False},
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'sharesmb': {'required': False},
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'snapdir': {'required': False, 'choices':['hidden', 'visible']},
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'sync': {'required': False, 'choices':['on', 'off']},
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# Not supported
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#'userquota': {'required': False},
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'utf8only': {'required': False, 'choices':['on', 'off']},
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'volsize': {'required': False},
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'volblocksize': {'required': False},
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'vscan': {'required': False, 'choices':['on', 'off']},
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'xattr': {'required': False, 'choices':['on', 'off']},
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'zoned': {'required': False, 'choices':['on', 'off']},
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}
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)
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state = module.params.pop('state')
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name = module.params.pop('name')
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# Remaining items in module.params are zfs properties
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# Remove 'null' value properties
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properties = dict()
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for prop, value in module.params.iteritems():
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if value:
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properties[prop] = value
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result = {}
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result['name'] = name
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result['state'] = state
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zfs=Zfs(module, name, properties)
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if state == 'present':
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if zfs.exists():
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zfs.set_properties_if_changed()
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else:
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zfs.create()
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elif state == 'absent':
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if zfs.exists():
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zfs.destroy()
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result.update(zfs.properties)
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result['changed'] = zfs.changed
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module.exit_json(**result)
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# include magic from lib/ansible/module_common.py
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#<<INCLUDE_ANSIBLE_MODULE_COMMON>>
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main()
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