+++ /dev/null
-#!/usr/bin/python
-# mclu (mini cluster)
-# Copyright (C) 2014 Red Hat Inc.
-#
-# 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 2 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
-
-import argparse
-import os
-import re
-import subprocess
-import sys
-import libvirt
-
-import config
-import lib
-import libvirt_xml
-
-def cmdline (subparsers):
- p = subparsers.add_parser (
- 'build',
- help='build and run a new virtual machine',
- )
- p.add_argument (
- '--memory', default=1024, type=int,
- help='RAM to give to guest (default unit is megabytes)'
- )
- p.add_argument (
- '--vcpus', default=4, type=int,
- help='virtual CPUs to give to guest'
- )
- p.add_argument (
- '--virtio', action='store_const', const=True,
- help='use virtio disks and network'
- )
- p.add_argument (
- '--no-start', action='store_const', const=True,
- help='do not start the guest after building'
- )
- p.add_argument (
- '--size', required=True,
- help='size of disk'
- )
- p.add_argument (
- 'name',
- help='name of the new VM (or use "vm:name")'
- )
- p.add_argument (
- 'os_version',
- help='OS & version of guest (see virt-builder docs)'
- )
- p.add_argument (
- 'vbargs', nargs='*',
- help='virt-builder arguments (after "--")'
- )
- p.set_defaults (run=run)
-
-def run (c, args):
- # Did the user request a particular node? If not, we'll run it
- # on any node which is up.
- m = re.match (r'^(.*):(.*)$', args.name)
- if m:
- node_name = m.group (1)
- vm_name = m.group (2)
- else:
- node_name = lib.pick_any_node_which_is_up (c)
- vm_name = args.name
-
- # Get all the guests, so we can tell if the name is a duplicate.
- running, inactive = lib.get_all_guests (c)
-
- if vm_name in running or vm_name in inactive:
- sys.exit ("error: VM name (%s) already exists" % vm_name)
-
- output = '%s/%s.img' % (c['images_dir'], vm_name)
-
- # Call out to virt-builder to build the disk image.
- vbargs = [
- config.VIRT_BUILDER,
- args.os_version,
- '--output', output,
- '--format', 'qcow2',
- ]
- if args.size:
- vbargs.extend (['--size', args.size])
- if args.vbargs:
- vbargs.extend (args.vbargs)
- subprocess.check_call (vbargs)
-
- # XXX Unfortunately this is necessary so qemu can access the disk.
- os.chmod (output, 0666)
-
- # Generate the XML. Would be nice to use virt-install here, but
- # it doesn't work: RHBZ#1095789
- xml = libvirt_xml.generate_libvirt_xml (vm_name,
- args.memory,
- args.vcpus,
- args.virtio,
- output)
-
- # Write the XML to the xmls_dir.
- fp = open ("%s/%s.xml" % (c['xmls_dir'], vm_name), "w")
- fp.write (xml)
- fp.close ()
-
- if not args.no_start:
- # Start the guest.
- lib.start_guest (c, node_name, vm_name)
- print "guest started on node %s" % node_name