mirror of https://github.com/ansible/ansible.git
Modules for gathering facts about ZFS datasets and pools (#19181)
* Add modules for gathering facts about ZFS datasets and pools * Move zfs module to storage/zfs subcategory * Replace dict.iteritems() with iteritems(dict) * Add ANSIBLE_METADATA Document return values Make imports explicit Use native YAML syntax in EXAMPLES * Add zfs_facts and zpool_facts modules to CHANGELOG.md * Add facts to return valuespull/20029/head
Adam Števko
8 years ago
committed by
John R Barker
parent
3744764fae
commit
d9ced3f4d1
@ -0,0 +1,280 @@
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#!/usr/bin/python
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# -*- coding: utf-8 -*-
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# (c) 2016, Adam Števko <adam.stevko@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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ANSIBLE_METADATA = {'status': ['preview'],
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'supported_by': 'community',
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'version': '1.0'}
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DOCUMENTATION = '''
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---
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module: zfs_facts
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short_description: Gather facts about ZFS datasets.
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description:
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- Gather facts from ZFS dataset properties.
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version_added: "2.3"
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author: Adam Števko (@xen0l)
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options:
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name:
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description:
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- ZFS dataset name.
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alias: [ "ds", "dataset" ]
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type: str
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required: yes
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recurse:
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description:
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- Specifies if properties for any children should be recursively
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displayed.
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type: bool
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default: False
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required: false
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parsable:
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description:
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- Specifies if property values should be displayed in machine
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friendly format.
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type: bool
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default: False
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required: false
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properties:
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description:
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- Specifies which dataset properties should be queried in comma-separated format.
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For more information about dataset properties, check zfs(1M) man page.
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alias: [ "props" ]
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type: str
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default: all
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required: false
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type:
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description:
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- Specifies which datasets types to display. Multiple values have to be
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provided in comma-separated form.
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alias: [ "props" ]
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type: str
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default: all
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choices: [ 'all', 'filesystem', 'volume', 'snapshot', 'bookmark' ]
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required: false
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depth:
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description:
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- Specifiies recurion depth.
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type: int
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default: None
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required: false
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'''
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EXAMPLES = '''
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name: Gather facts about ZFS dataset rpool/export/home
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zfs_facts: dataset=rpool/export/home
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name: Report space usage on ZFS filesystems under data/home
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zfs_facts: name=data/home recurse=yes type=filesystem
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debug: msg='ZFS dataset {{ item.name }} consumes {{ item.used }} of disk space.'
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with_items: '{{ ansible_zfs_datasets }}
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'''
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RETURN = '''
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name:
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description: ZFS dataset name
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returned: always
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type: string
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sample: rpool/var/spool
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parsable:
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description: if parsable output should be provided in machine friendly format.
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returned: if 'parsable' is set to True
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type: boolean
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sample: True
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recurse:
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description: if we should recurse over ZFS dataset
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returned: if 'recurse' is set to True
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type: boolean
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sample: True
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zfs_datasets:
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description: ZFS dataset facts
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returned: always
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type: string
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sample:
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{
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"aclinherit": "restricted",
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"aclmode": "discard",
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"atime": "on",
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"available": "43.8G",
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"canmount": "on",
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"casesensitivity": "sensitive",
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"checksum": "on",
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"compression": "off",
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"compressratio": "1.00x",
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"copies": "1",
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"creation": "Thu Jun 16 11:37 2016",
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"dedup": "off",
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"devices": "on",
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"exec": "on",
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"filesystem_count": "none",
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"filesystem_limit": "none",
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"logbias": "latency",
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"logicalreferenced": "18.5K",
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"logicalused": "3.45G",
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"mlslabel": "none",
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"mounted": "yes",
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"mountpoint": "/rpool",
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"name": "rpool",
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"nbmand": "off",
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"normalization": "none",
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"org.openindiana.caiman:install": "ready",
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"primarycache": "all",
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"quota": "none",
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"readonly": "off",
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"recordsize": "128K",
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"redundant_metadata": "all",
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"refcompressratio": "1.00x",
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"referenced": "29.5K",
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"refquota": "none",
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"refreservation": "none",
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"reservation": "none",
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"secondarycache": "all",
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"setuid": "on",
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"sharenfs": "off",
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"sharesmb": "off",
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"snapdir": "hidden",
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"snapshot_count": "none",
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"snapshot_limit": "none",
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"sync": "standard",
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"type": "filesystem",
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"used": "4.41G",
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"usedbychildren": "4.41G",
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"usedbydataset": "29.5K",
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"usedbyrefreservation": "0",
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"usedbysnapshots": "0",
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"utf8only": "off",
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"version": "5",
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"vscan": "off",
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"written": "29.5K",
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"xattr": "on",
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"zoned": "off"
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}
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'''
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import os
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from collections import defaultdict
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from ansible.module_utils.six import iteritems
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from ansible.module_utils.basic import AnsibleModule
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SUPPORTED_TYPES = ['all', 'filesystem', 'volume', 'snapshot', 'bookmark']
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class ZFSFacts(object):
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def __init__(self, module):
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self.module = module
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self.name = module.params['name']
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self.recurse = module.params['recurse']
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self.parsable = module.params['parsable']
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self.properties = module.params['properties']
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self.type = module.params['type']
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self.depth = module.params['depth']
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self._datasets = defaultdict(dict)
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self.facts = []
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def dataset_exists(self):
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cmd = [self.module.get_bin_path('zfs')]
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cmd.append('list')
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cmd.append(self.name)
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(rc, out, err) = self.module.run_command(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 get_facts(self):
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cmd = [self.module.get_bin_path('zfs')]
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cmd.append('get')
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cmd.append('-H')
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if self.parsable:
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cmd.append('-p')
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if self.recurse:
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cmd.append('-r')
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if int(self.depth) != 0:
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cmd.append('-d')
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cmd.append('%s' % self.depth)
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if self.type:
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cmd.append('-t')
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cmd.append(self.type)
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cmd.append('-o')
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cmd.append('name,property,value')
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cmd.append(self.properties)
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cmd.append(self.name)
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(rc, out, err) = self.module.run_command(cmd)
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if rc == 0:
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for line in out.splitlines():
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dataset, property, value = line.split('\t')
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self._datasets[dataset].update({property: value})
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for k, v in iteritems(self._datasets):
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v.update({'name': k})
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self.facts.append(v)
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return {'ansible_zfs_datasets': self.facts}
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else:
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self.module.fail_json(msg='Error while trying to get facts about ZFS dataset: %s' % self.name,
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stderr=err,
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rc=rc)
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def main():
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module = AnsibleModule(
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argument_spec=dict(
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name=dict(required=True, aliases=['ds', 'dataset'], type='str'),
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recurse=dict(required=False, default=False, type='bool'),
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parsable=dict(required=False, default=False, type='bool'),
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properties=dict(required=False, default='all', type='str'),
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type=dict(required=False, default='all', type='str', choices=SUPPORTED_TYPES),
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depth=dict(required=False, default=0, type='int')
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),
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supports_check_mode=True
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)
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zfs_facts = ZFSFacts(module)
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result = {}
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result['changed'] = False
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result['name'] = zfs_facts.name
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if zfs_facts.parsable:
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result['parsable'] = zfs_facts.parsable
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if zfs_facts.recurse:
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result['recurse'] = zfs_facts.recurse
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if zfs_facts.dataset_exists():
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result['ansible_facts'] = zfs_facts.get_facts()
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else:
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module.fail_json(msg='ZFS dataset %s does not exist!' % zfs_facts.name)
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module.exit_json(**result)
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if __name__ == '__main__':
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main()
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@ -0,0 +1,220 @@
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#!/usr/bin/python
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# -*- coding: utf-8 -*-
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# (c) 2016, Adam Števko <adam.stevko@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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ANSIBLE_METADATA = {'status': ['preview'],
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'supported_by': 'community',
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'version': '1.0'}
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DOCUMENTATION = '''
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---
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module: zpool_facts
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short_description: Gather facts about ZFS pools.
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description:
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- Gather facts from ZFS pool properties.
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version_added: "2.3"
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author: Adam Števko (@xen0l)
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options:
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name:
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description:
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- ZFS pool name.
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alias: [ "pool", "zpool" ]
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type: str
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required: false
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parsable:
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description:
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- Specifies if property values should be displayed in machine
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friendly format.
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type: bool
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default: False
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required: false
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properties:
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description:
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- Specifies which dataset properties should be queried in comma-separated format.
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For more information about dataset properties, check zpool(1M) man page.
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alias: [ "props" ]
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type: str
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default: all
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required: false
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'''
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EXAMPLES = '''
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# Gather facts about ZFS pool rpool
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zpool_facts: pool=rpool
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# Gather space usage about all imported ZFS pools
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zpool_facts: properties='free,size'
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debug: msg='ZFS pool {{ item.name }} has {{ item.free }} free space out of {{ item.size }}.'
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with_items: '{{ ansible_zfs_pools }}'
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'''
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RETURN = '''
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name:
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description: ZFS pool name
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returned: always
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type: string
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sample: rpool
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parsable:
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description: if parsable output should be provided in machine friendly format.
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returned: if 'parsable' is set to True
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type: boolean
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sample: True
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zfs_pools:
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description: ZFS pool facts
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returned: always
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type: string
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sample:
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{
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"allocated": "3.46G",
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"altroot": "-",
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"autoexpand": "off",
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"autoreplace": "off",
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"bootfs": "rpool/ROOT/openindiana",
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"cachefile": "-",
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"capacity": "6%",
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"comment": "-",
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"dedupditto": "0",
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"dedupratio": "1.00x",
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"delegation": "on",
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"expandsize": "-",
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"failmode": "wait",
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"feature@async_destroy": "enabled",
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"feature@bookmarks": "enabled",
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"feature@edonr": "enabled",
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"feature@embedded_data": "active",
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"feature@empty_bpobj": "active",
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"feature@enabled_txg": "active",
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"feature@extensible_dataset": "enabled",
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"feature@filesystem_limits": "enabled",
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"feature@hole_birth": "active",
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"feature@large_blocks": "enabled",
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"feature@lz4_compress": "active",
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"feature@multi_vdev_crash_dump": "enabled",
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"feature@sha512": "enabled",
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"feature@skein": "enabled",
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"feature@spacemap_histogram": "active",
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"fragmentation": "3%",
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"free": "46.3G",
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"freeing": "0",
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"guid": "15729052870819522408",
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"health": "ONLINE",
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"leaked": "0",
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"listsnapshots": "off",
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"name": "rpool",
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"readonly": "off",
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"size": "49.8G",
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"version": "-"
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}
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'''
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import os
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from collections import defaultdict
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from ansible.module_utils.six import iteritems
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from ansible.module_utils.basic import AnsibleModule
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class ZPoolFacts(object):
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def __init__(self, module):
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self.module = module
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self.name = module.params['name']
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self.parsable = module.params['parsable']
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self.properties = module.params['properties']
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self._pools = defaultdict(dict)
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self.facts = []
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def pool_exists(self):
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cmd = [self.module.get_bin_path('zpool')]
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cmd.append('list')
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cmd.append(self.name)
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(rc, out, err) = self.module.run_command(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 get_facts(self):
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cmd = [self.module.get_bin_path('zpool')]
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cmd.append('get')
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cmd.append('-H')
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if self.parsable:
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cmd.append('-p')
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cmd.append('-o')
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cmd.append('name,property,value')
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cmd.append(self.properties)
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if self.name:
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cmd.append(self.name)
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(rc, out, err) = self.module.run_command(cmd)
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if rc == 0:
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for line in out.splitlines():
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pool, property, value = line.split('\t')
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self._pools[pool].update({property: value})
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for k, v in iteritems(self._pools):
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v.update({'name': k})
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self.facts.append(v)
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return {'ansible_zfs_pools': self.facts}
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else:
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self.module.fail_json(msg='Error while trying to get facts about ZFS pool: %s' % self.name,
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stderr=err,
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rc=rc)
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def main():
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module = AnsibleModule(
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argument_spec=dict(
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name=dict(required=False, aliases=['pool', 'zpool'], type='str'),
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parsable=dict(required=False, default=False, type='bool'),
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properties=dict(required=False, default='all', type='str'),
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),
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supports_check_mode=True
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)
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zpool_facts = ZPoolFacts(module)
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result = {}
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result['changed'] = False
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result['name'] = zpool_facts.name
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if zpool_facts.parsable:
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result['parsable'] = zpool_facts.parsable
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if zpool_facts.name is not None:
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if zpool_facts.pool_exists():
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result['ansible_facts'] = zpool_facts.get_facts()
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else:
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module.fail_json(msg='ZFS pool %s does not exist!' % zpool_facts.name)
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else:
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result['ansible_facts'] = zpool_facts.get_facts()
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module.exit_json(**result)
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if __name__ == '__main__':
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main()
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