145 lines
4.5 KiB
Python
Executable file
145 lines
4.5 KiB
Python
Executable file
#!/usr/bin/python
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# -*- coding: utf-8 -*-
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# (c) 2013, Alexander Bulimov <lazywolf0@gmail.com>
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# based on lvol module by Jeroen Hoekx <jeroen.hoekx@dsquare.be>
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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: Alexander Bulimov
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module: lvg
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short_description: Configure LVM volume groups
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description:
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- This module creates or removes volume groups.
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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 name of the volume group.
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required: true
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dev:
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description:
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- List of comma-separated devices to use in this volume group.
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required: true
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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 volume group exists.
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required: false
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force:
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choices: [ "yes", "no" ]
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default: no
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description:
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- If yes, allows to remove volume group with logical volumes.
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required: false
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examples:
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- description: Create a volume group on top of /dev/sda1.
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code: lvg vg=vg.services dev=/dev/sda1
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- description: Create a volume group on top of /dev/sdb1 and /dev/sdc5.
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code: lvg vg=vg.services dev=/dev/sdb1,/dev/sdc5
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- description: Remove a volume group with name vg.services.
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code: lvg vg=vg.services state=absent
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notes:
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- module does not check device list for already present volume group
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'''
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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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'pv_count': int(parts[1]),
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'lv_count': int(parts[2]),
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})
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return vgs
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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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dev=dict(),
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state=dict(choices=["absent", "present"], default='present'),
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force=dict(choices=["yes", "no"], default='no'),
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),
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supports_check_mode=True,
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)
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vg = module.params['vg']
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if module.params['dev']:
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dev = module.params['dev'].replace(',',' ')
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dev_list = module.params['dev'].split(',')
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state = module.params['state']
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force = module.params['force']
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if state=='present' and not dev:
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module.fail_json(msg="No dev given.")
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if state=='present':
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for test_dev in dev_list:
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if not os.path.exists(test_dev):
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module.fail_json(msg="No dev %s found."%test_dev)
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rc,current_vgs,err = module.run_command("vgs --noheadings -o vg_name,pv_count,lv_count --separator ';'")
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if rc != 0:
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module.fail_json(msg="Failed creating volume group %s."%vg, rc=rc, err=err)
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changed = False
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vgs = parse_vgs(current_vgs)
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for test_vg in vgs:
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if test_vg['name'] == vg:
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this_vg = test_vg
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break
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else:
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this_vg = None
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if this_vg is None:
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if state == 'present':
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### create VG
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if module.check_mode:
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changed = True
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else:
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rc,_,err = module.run_command("vgcreate %s %s"%(vg, dev))
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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 volume group '%s' failed"%(vg), rc=rc, err=err)
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else:
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if state == 'absent':
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if module.check_mode:
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module.exit_json(changed=True)
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else:
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if this_vg['lv_count'] == 0 or force == "yes":
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### remove VG
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rc,_,err = module.run_command("vgremove --force %s"%(vg))
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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 volume group %s"%(vg),rc=rc, err=err)
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else:
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module.fail_json(msg="Refuse to remove non-empty volume group %s without force=yes"%(vg))
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module.exit_json(changed=changed)
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# this is magic, see lib/ansible/module_common.py
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#<<INCLUDE_ANSIBLE_MODULE_COMMON>>
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main()
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