ansible/system/filesystem.py

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#!/usr/bin/python
# -*- coding: utf-8 -*-
# (c) 2013, Alexander Bulimov <lazywolf0@gmail.com>
#
# This file is part of Ansible
#
# Ansible is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# Ansible is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with Ansible. If not, see <http://www.gnu.org/licenses/>.
DOCUMENTATION = '''
---
author: "Alexander Bulimov (@abulimov)"
module: filesystem
short_description: Makes file system on block device
description:
- This module creates file system.
version_added: "1.2"
options:
fstype:
description:
- File System type to be created.
required: true
dev:
description:
- Target block device.
required: true
force:
choices: [ "yes", "no" ]
default: "no"
description:
- If yes, allows to create new filesystem on devices that already has filesystem.
required: false
opts:
description:
- List of options to be passed to mkfs command.
notes:
- uses mkfs command
'''
EXAMPLES = '''
# Create a ext2 filesystem on /dev/sdb1.
- filesystem: fstype=ext2 dev=/dev/sdb1
# Create a ext4 filesystem on /dev/sdb1 and check disk blocks.
- filesystem: fstype=ext4 dev=/dev/sdb1 opts="-cc"
'''
def main():
module = AnsibleModule(
argument_spec = dict(
fstype=dict(required=True, aliases=['type']),
dev=dict(required=True, aliases=['device']),
opts=dict(),
force=dict(type='bool', default='no'),
),
supports_check_mode=True,
)
dev = module.params['dev']
fstype = module.params['fstype']
opts = module.params['opts']
force = module.boolean(module.params['force'])
changed = False
if not os.path.exists(dev):
module.fail_json(msg="Device %s not found."%dev)
cmd = module.get_bin_path('blkid', required=True)
rc,raw_fs,err = module.run_command("%s -c /dev/null -o value -s TYPE %s" % (cmd, dev))
fs = raw_fs.strip()
if fs == fstype:
module.exit_json(changed=False)
elif fs and not force:
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module.fail_json(msg="'%s' is already used as %s, use force=yes to overwrite"%(dev,fs), rc=rc, err=err)
### create fs
if module.check_mode:
changed = True
else:
mkfs = module.get_bin_path('mkfs', required=True)
cmd = None
if fstype in ['ext2', 'ext3', 'ext4', 'ext4dev']:
force_flag="-F"
elif fstype in ['xfs', 'btrfs']:
force_flag="-f"
else:
force_flag=""
if opts is None:
cmd = "%s -t %s %s '%s'" % (mkfs, fstype, force_flag, dev)
else:
cmd = "%s -t %s %s %s '%s'" % (mkfs, fstype, force_flag, opts, dev)
rc,_,err = module.run_command(cmd)
if rc == 0:
changed = True
else:
module.fail_json(msg="Creating filesystem %s on device '%s' failed"%(fstype,dev), rc=rc, err=err)
module.exit_json(changed=changed)
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# import module snippets
from ansible.module_utils.basic import *
main()