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# Copyright 2018 Lars Wirzenius
#
# This program 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.
#
# This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
#
# =*= License: GPL-3+ =*=
import os
import cliapp
import vmdb
class Lvm2Plugin(cliapp.Plugin):
def enable(self):
self.app.step_runners.add(VgcreateStepRunner())
self.app.step_runners.add(LvcreateStepRunner())
class VgcreateStepRunner(vmdb.StepRunnerInterface):
def get_required_keys(self):
return ['vgcreate', 'physical']
def run(self, step, settings, state):
vgname = self.get_vg(step)
physical = self.get_pv(step, state)
for phys in physical:
vmdb.runcmd(['pvcreate', '-ff', '--yes', phys])
vmdb.runcmd(['vgcreate', vgname] + physical)
def teardown(self, step, settings, state):
vgname = self.get_vg(step)
vmdb.runcmd(['vgchange', '-an', vgname])
def get_vg(self, step):
return step['vgcreate']
def get_pv(self, step, state):
return [
state.tags.get_dev(tag)
for tag in step['physical']
]
class LvcreateStepRunner(vmdb.StepRunnerInterface):
def get_required_keys(self):
return ['lvcreate']
def run(self, step, settings, state):
vgname = step['lvcreate']
lvname = step['name']
size = step['size']
vmdb.runcmd(['lvcreate', '--name', lvname, '--size', size, vgname])
lvdev = '/dev/{}/{}'.format(vgname, lvname)
assert os.path.exists(lvdev)
state.tags.append(lvname)
state.tags.set_dev(lvname, lvdev)
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