# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
# NOTE: XenServer still only supports Python 2.4 in it's dom0 userspace
# which means the Nova xenapi plugins must use only Python 2.4 features
"""
XenAPI Plugin for transferring data between host nodes
"""
import utils
import pluginlib_nova
pluginlib_nova.configure_logging('migration')
logging = pluginlib_nova.logging
def move_vhds_into_sr(session, instance_uuid, sr_path, uuid_stack):
"""Moves the VHDs from their copied location to the SR."""
staging_path = "/images/instance%s" % instance_uuid
imported_vhds = utils.import_vhds(sr_path, staging_path, uuid_stack)
utils.cleanup_staging_area(staging_path)
return imported_vhds
def _rsync_vhds(instance_uuid, host, staging_path, user="******"):
if not staging_path.endswith('/'):
staging_path += '/'
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
# NOTE: XenServer still only supports Python 2.4 in it's dom0 userspace
# which means the Nova xenapi plugins must use only Python 2.4 features
"""
XenAPI Plugin for transferring data between host nodes
"""
import utils
import pluginlib_nova
pluginlib_nova.configure_logging('migration')
logging = pluginlib_nova.logging
def move_vhds_into_sr(session, instance_uuid, sr_path, uuid_stack):
"""Moves the VHDs from their copied location to the SR."""
staging_path = "/images/instance%s" % instance_uuid
imported_vhds = utils.import_vhds(sr_path, staging_path, uuid_stack)
utils.cleanup_staging_area(staging_path)
return imported_vhds
def _rsync_vhds(instance_uuid, host, staging_path, user="******"):
if not staging_path.endswith('/'):
staging_path += '/'
# NOTE: XenServer still only supports Python 2.4 in it's dom0 userspace
# which means the Nova xenapi plugins must use only Python 2.4 features
# TODO(sfinucan): Resolve all 'noqa' items once the above is no longer true
"""Inject network configuration into iPXE ISO for boot."""
import logging
import os
import shutil
import utils
# FIXME(sirp): should this use pluginlib from 5.6?
import pluginlib_nova
pluginlib_nova.configure_logging('ipxe')
ISOLINUX_CFG = """SAY iPXE ISO boot image
TIMEOUT 30
DEFAULT ipxe.krn
LABEL ipxe.krn
KERNEL ipxe.krn
INITRD netcfg.ipxe
"""
NETCFG_IPXE = """#!ipxe
:start
imgfree
ifclose net0
set net0/ip %(ip_address)s
# which means the Nova xenapi plugins must use only Python 2.4 features
# TODO(sfinucan): Resolve all 'noqa' items once the above is no longer true
"""Handle the manipulation of kernel images."""
import errno
import os
import shutil
import XenAPIPlugin
import pluginlib_nova
pluginlib_nova.configure_logging('kernel')
logging = pluginlib_nova.logging
exists = pluginlib_nova.exists
optional = pluginlib_nova.optional
with_vdi_in_dom0 = pluginlib_nova.with_vdi_in_dom0
KERNEL_DIR = '/boot/guest'
def _copy_vdi(dest, copy_args):
vdi_uuid = copy_args['vdi_uuid']
vdi_size = copy_args['vdi_size']
cached_image = copy_args['cached-image']
logging.debug("copying kernel/ramdisk file from %s to /boot/guest/%s",
# License for the specific language governing permissions and limitations
# under the License.
# NOTE: XenServer still only supports Python 2.4 in it's dom0 userspace
# which means the Nova xenapi plugins must use only Python 2.4 features
"""Fetch Bandwidth data from VIF network devices."""
import utils
import pluginlib_nova
import re
pluginlib_nova.configure_logging('bandwidth')
def _read_proc_net():
f = open('/proc/net/dev', 'r')
try:
return f.readlines()
finally:
f.close()
def _get_bandwitdth_from_proc():
devs = [l.strip() for l in _read_proc_net()]
# ignore headers
devs = devs[2:]
vif_pattern = re.compile("^vif(\d+)\.(\d+)")
#
# XenAPI plugin for reading/writing information to xenstore
#
import base64
import commands # noqa
try:
import json
except ImportError:
import simplejson as json
import time
import XenAPIPlugin
import pluginlib_nova
pluginlib_nova.configure_logging("agent")
import xenstore
DEFAULT_TIMEOUT = 30
PluginError = pluginlib_nova.PluginError
_ = pluginlib_nova._
class TimeoutError(StandardError):
pass
class RebootDetectedError(StandardError):
pass
# XenAPI plugin for reading/writing information to xenstore
#
try:
import json
except ImportError:
import simplejson as json
import logging
import os
import subprocess
import XenAPIPlugin
import pluginlib_nova as pluginlib
pluginlib.configure_logging("xenstore")
class XenstoreError(pluginlib.PluginError):
"""Errors that occur when calling xenstore-* through subprocesses"""
def __init__(self, cmd, return_code, stderr, stdout):
msg = "cmd: %s; returncode: %d; stderr: %s; stdout: %s"
msg = msg % (cmd, return_code, stderr, stdout)
self.cmd = cmd
self.return_code = return_code
self.stderr = stderr
self.stdout = stdout
pluginlib.PluginError.__init__(self, msg)
def jsonify(fnc):
# NOTE: XenServer still only supports Python 2.4 in it's dom0 userspace
# which means the Nova xenapi plugins must use only Python 2.4 features
# TODO(sfinucan): Resolve all 'noqa' items once the above is no longer true
"""Handle the manipulation of kernel images."""
import errno
import os
import shutil
import XenAPIPlugin
import pluginlib_nova
pluginlib_nova.configure_logging('kernel')
logging = pluginlib_nova.logging
exists = pluginlib_nova.exists
optional = pluginlib_nova.optional
with_vdi_in_dom0 = pluginlib_nova.with_vdi_in_dom0
KERNEL_DIR = '/boot/guest'
def _copy_vdi(dest, copy_args):
vdi_uuid = copy_args['vdi_uuid']
vdi_size = copy_args['vdi_size']
cached_image = copy_args['cached-image']
logging.debug("copying kernel/ramdisk file from %s to /boot/guest/%s",
dest, vdi_uuid)
You should ensure appropriate log rotation to ensure
guests are not able to consume too much Dom0 disk space,
and equally should not be able to stop other guests from logging.
Adding and removing the following xenstore key will reopen the log,
as will be required after a log rotate:
/local/logconsole/<dom_id>
"""
import base64
import logging
import zlib
import XenAPIPlugin
import pluginlib_nova
pluginlib_nova.configure_logging("console")
CONSOLE_LOG_DIR = '/var/log/xen/guest'
CONSOLE_LOG_FILE_PATTERN = CONSOLE_LOG_DIR + '/console.%d'
MAX_CONSOLE_BYTES = 102400
SEEK_SET = 0
SEEK_END = 2
def _last_bytes(file_like_object):
try:
file_like_object.seek(-MAX_CONSOLE_BYTES, SEEK_END)
except IOError, e: # noqa
if e.errno == 22:
file_like_object.seek(0, SEEK_SET)
# under the License.
# NOTE: XenServer still only supports Python 2.4 in it's dom0 userspace
# which means the Nova xenapi plugins must use only Python 2.4 features
"""Handle the uploading and downloading of images via Glance."""
import os
import shutil
import utils
import pluginlib_nova
pluginlib_nova.configure_logging('workarounds')
def _copy_vdis(sr_path, staging_path, vdi_uuids):
seq_num = 0
for vdi_uuid in vdi_uuids:
src = os.path.join(sr_path, "%s.vhd" % vdi_uuid)
dst = os.path.join(staging_path, "%d.vhd" % seq_num)
shutil.copyfile(src, dst)
seq_num += 1
def safe_copy_vdis(session, sr_path, vdi_uuids, uuid_stack):
staging_path = utils.make_staging_area(sr_path)
try:
_copy_vdis(sr_path, staging_path, vdi_uuids)
from six.moves import http_client as httplib
try:
import json
except ImportError:
import simplejson as json
import md5 # noqa
import socket
import urllib2
from urlparse import urlparse
import pluginlib_nova
import utils
pluginlib_nova.configure_logging('glance')
logging = pluginlib_nova.logging
PluginError = pluginlib_nova.PluginError
SOCKET_TIMEOUT_SECONDS = 90
class RetryableError(Exception):
pass
def _create_connection(scheme, netloc):
if scheme == 'https':
conn = httplib.HTTPSConnection(netloc)
else:
conn = httplib.HTTPConnection(netloc)
# XenAPI plugin for reading/writing information to xenstore
#
import base64
import commands # noqa
try:
import json
except ImportError:
import simplejson as json
import time
import XenAPIPlugin
import pluginlib_nova
pluginlib_nova.configure_logging("agent")
import xenstore
DEFAULT_TIMEOUT = 30
PluginError = pluginlib_nova.PluginError
_ = pluginlib_nova._
class TimeoutError(StandardError):
pass
class RebootDetectedError(StandardError):
pass
import errno
import inspect
import os
import random
import shutil
import tempfile
import time
import libtorrent
import urllib2
import utils
import pluginlib_nova
pluginlib_nova.configure_logging('bittorrent')
logging = pluginlib_nova.logging
# Taken from units since we don't pull down full library
Mi = 1024**2
DEFAULT_TORRENT_CACHE = '/images/torrents'
DEFAULT_SEED_CACHE = '/images/seeds'
SEEDER_PROCESS = '_bittorrent_seeder.py'
DEFAULT_MMA = int(libtorrent.bandwidth_mixed_algo_t.prefer_tcp)
DEFAULT_MORQ = 400
DEFAULT_MQDB = 8 * Mi
DEFAULT_MQDBLW = 0
def _make_torrent_cache():
torrent_cache_path = os.environ.get('TORRENT_CACHE', DEFAULT_TORRENT_CACHE)
You should ensure appropriate log rotation to ensure
guests are not able to consume too much Dom0 disk space,
and equally should not be able to stop other guests from logging.
Adding and removing the following xenstore key will reopen the log,
as will be required after a log rotate:
/local/logconsole/<dom_id>
"""
import base64
import logging
import zlib
import XenAPIPlugin
import pluginlib_nova
pluginlib_nova.configure_logging("console")
CONSOLE_LOG_DIR = '/var/log/xen/guest'
CONSOLE_LOG_FILE_PATTERN = CONSOLE_LOG_DIR + '/console.%d'
MAX_CONSOLE_BYTES = 102400
SEEK_SET = 0
SEEK_END = 2
def _last_bytes(file_like_object):
try:
file_like_object.seek(-MAX_CONSOLE_BYTES, SEEK_END)
except IOError, e: # noqa
if e.errno == 22:
file_like_object.seek(0, SEEK_SET)
# NOTE: XenServer still only supports Python 2.4 in it's dom0 userspace
# which means the Nova xenapi plugins must use only Python 2.4 features
# TODO(sfinucan): Resolve all 'noqa' items once the above is no longer true
"""Seed a bittorent image. This file should not be executed directly, rather it
should be kicked off by the `bittorent` dom0 plugin."""
import os
import sys
import time
import libtorrent
import pluginlib_nova
pluginlib_nova.configure_logging('_bittorrent_seeder')
logging = pluginlib_nova.logging
def _daemonize(stdin='/dev/null', stdout='/dev/null', stderr='/dev/null'):
"""Daemonize the current process.
Do the UNIX double-fork magic, see Stevens' "Advanced Programming
in the UNIX Environment" for details (ISBN 0201563177).
Source: http://www.jejik.com/articles/2007/02/
a_simple_unix_linux_daemon_in_python/
"""
# 1st fork
try:
pid = os.fork()
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
# NOTE: XenServer still only supports Python 2.4 in it's dom0 userspace
# which means the Nova xenapi plugins must use only Python 2.4 features
import logging
import os
import time
import pluginlib_nova as pluginlib
import utils
pluginlib.configure_logging("disk_utils")
_ = pluginlib._
def wait_for_dev(session, dev_path, max_seconds):
for i in range(0, max_seconds):
if os.path.exists(dev_path):
return dev_path
time.sleep(1)
return ""
def make_partition(session, dev, partition_start, partition_end):
dev_path = utils.make_dev_path(dev)
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
# NOTE: XenServer still only supports Python 2.4 in it's dom0 userspace
# which means the Nova xenapi plugins must use only Python 2.4 features
"""Handle the uploading and downloading of images via Glance."""
import os
import shutil
import utils
import pluginlib_nova
pluginlib_nova.configure_logging('workarounds')
def _copy_vdis(sr_path, staging_path, vdi_uuids):
seq_num = 0
for vdi_uuid in vdi_uuids:
src = os.path.join(sr_path, "%s.vhd" % vdi_uuid)
dst = os.path.join(staging_path, "%d.vhd" % seq_num)
shutil.copyfile(src, dst)
seq_num += 1
def safe_copy_vdis(session, sr_path, vdi_uuids, uuid_stack):
staging_path = utils.make_staging_area(sr_path)
try:
_copy_vdis(sr_path, staging_path, vdi_uuids)
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
# NOTE: XenServer still only supports Python 2.4 in it's dom0 userspace
# which means the Nova xenapi plugins must use only Python 2.4 features
"""Fetch Bandwidth data from VIF network devices."""
import utils
import pluginlib_nova
import re
pluginlib_nova.configure_logging('bandwidth')
def _read_proc_net():
f = open('/proc/net/dev', 'r')
try:
return f.readlines()
finally:
f.close()
def _get_bandwitdth_from_proc():
devs = [l.strip() for l in _read_proc_net()]
# ignore headers
devs = devs[2:]
vif_pattern = re.compile("^vif(\d+)\.(\d+)")
#
# XenAPI plugin for reading/writing information to xenstore
#
try:
import json
except ImportError:
import simplejson as json
import utils # noqa
import XenAPIPlugin # noqa
import pluginlib_nova as pluginlib # noqa
pluginlib.configure_logging("xenstore")
class XenstoreError(pluginlib.PluginError):
"""Errors that occur when calling xenstore-* through subprocesses."""
def __init__(self, cmd, return_code, stderr, stdout):
msg = "cmd: %s; returncode: %d; stderr: %s; stdout: %s"
msg = msg % (cmd, return_code, stderr, stdout)
self.cmd = cmd
self.return_code = return_code
self.stderr = stderr
self.stdout = stdout
pluginlib.PluginError.__init__(self, msg)
import inspect
import os
import random
import shutil
import tempfile
import time
import libtorrent
import urllib2
import utils
import pluginlib_nova
pluginlib_nova.configure_logging('bittorrent')
logging = pluginlib_nova.logging
# Taken from units since we don't pull down full library
Mi = 1024 ** 2
DEFAULT_TORRENT_CACHE = '/images/torrents'
DEFAULT_SEED_CACHE = '/images/seeds'
SEEDER_PROCESS = '_bittorrent_seeder.py'
DEFAULT_MMA = int(libtorrent.bandwidth_mixed_algo_t.prefer_tcp)
DEFAULT_MORQ = 400
DEFAULT_MQDB = 8 * Mi
DEFAULT_MQDBLW = 0
def _make_torrent_cache():
torrent_cache_path = os.environ.get(
# NOTE: XenServer still only supports Python 2.4 in it's dom0 userspace
# which means the Nova xenapi plugins must use only Python 2.4 features
# TODO(sfinucan): Resolve all 'noqa' items once the above is no longer true
"""Inject network configuration into iPXE ISO for boot."""
import logging
import os
import shutil
import utils
# FIXME(sirp): should this use pluginlib from 5.6?
import pluginlib_nova
pluginlib_nova.configure_logging('ipxe')
ISOLINUX_CFG = """SAY iPXE ISO boot image
TIMEOUT 30
DEFAULT ipxe.krn
LABEL ipxe.krn
KERNEL ipxe.krn
INITRD netcfg.ipxe
"""
NETCFG_IPXE = """#!ipxe
:start
imgfree
ifclose net0
set net0/ip %(ip_address)s
set net0/netmask %(netmask)s
try:
import json
except ImportError:
import simplejson as json
import md5 # noqa
import socket
import urllib2
from urlparse import urlparse
import pluginlib_nova
import utils
pluginlib_nova.configure_logging("glance")
logging = pluginlib_nova.logging
PluginError = pluginlib_nova.PluginError
SOCKET_TIMEOUT_SECONDS = 90
class RetryableError(Exception):
pass
def _create_connection(scheme, netloc):
if scheme == "https":
conn = httplib.HTTPSConnection(netloc)
else:
conn = httplib.HTTPConnection(netloc)
import sys
import time
import utils
import pluginlib_nova as pluginlib
import XenAPI
import XenAPIPlugin
try:
import xmlrpclib
except ImportError:
import six.moves.xmlrpc_client as xmlrpclib
pluginlib.configure_logging("xenhost")
_ = pluginlib._
host_data_pattern = re.compile(r"\s*(\S+) \([^\)]+\) *: ?(.*)")
config_file_path = "/usr/etc/xenhost.conf"
DEFAULT_TRIES = 23
DEFAULT_SLEEP = 10
def jsonify(fnc):
def wrapper(*args, **kwargs):
return json.dumps(fnc(*args, **kwargs))
return wrapper
# TODO(sfinucan): Resolve all 'noqa' items once the above is no longer true
"""Seed a bittorent image. This file should not be executed directly, rather it
should be kicked off by the `bittorent` dom0 plugin."""
import os
import sys
import time
import libtorrent
import pluginlib_nova
pluginlib_nova.configure_logging('_bittorrent_seeder')
logging = pluginlib_nova.logging
def _daemonize(stdin='/dev/null', stdout='/dev/null', stderr='/dev/null'):
"""Daemonize the current process.
Do the UNIX double-fork magic, see Stevens' "Advanced Programming
in the UNIX Environment" for details (ISBN 0201563177).
Source: http://www.jejik.com/articles/2007/02/
a_simple_unix_linux_daemon_in_python/
"""
# 1st fork
try:
pid = os.fork()
