container.py
3.42 KB
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##############################################################################
#
# Copyright (c) 2010 Vifib SARL and Contributors. All Rights Reserved.
#
# WARNING: This program as such is intended to be used by professional
# programmers who take the whole responsibility of assessing all potential
# consequences resulting from its eventual inadequacies and bugs
# End users who are looking for a ready-to-use solution with commercial
# guarantees and support are strongly adviced to contract a Free Software
# Service Company
#
# 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, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
#
##############################################################################
import ConfigParser
import uuid
import os
import subprocess
# XXX : This is in order to get the computer_partition object
# which exposes the state of the current partition.
#
# XXX : We could have modify slapgrid in order to put the
# state of the current partition offline. But this is
# written to have the most minimal impact.
from slapos.recipe.librecipe import GenericSlapRecipe
from slapos.recipe.librecipe import GenericBaseRecipe
class Recipe(GenericSlapRecipe):
def _options(self, options):
config_filename = self.options['config']
container_uuid = None
if os.path.exists(config_filename):
config = ConfigParser.ConfigParser()
config.read(config_filename)
if config.has_option('requested', 'name'):
container_uuid = uuid.UUID(hex=config.get('requested', 'name'))
if container_uuid is None:
# uuid wasn't generated at first in order to avoid
# wasting entropy
container_uuid = uuid.uuid4()
options['slapcontainer-name'] = container_uuid.hex
return options
def _install(self):
path_list = []
self.logger.info("Putting slapcontainer configuration file...")
config = ConfigParser.ConfigParser()
config.add_section('requested')
config.set('requested', 'status',
self.computer_partition.getState())
config.set('requested', 'name', self.options['slapcontainer-name'])
config.add_section('rootfs')
config.set('rootfs', 'image', self.options['image'])
config.set('rootfs', 'complete', self.options['image-complete'])
config.add_section('network')
config.set('network', 'interface', self.options['interface'])
config.add_section('config')
config.set('config', 'file', self.options['lxc-config'])
# Just a touch
open(self.options['lxc-config'], 'a').close()
config_filename = self.options['config']
with open(config_filename, 'w') as config_file:
config.write(config_file)
path_list.append(config_filename)
return path_list