def create_vifs(self, instance, networks=None):
"""
Creates vifs for an instance
"""
vm_opaque_ref = self._get_vm_opaque_ref(instance.id)
logging.debug(_("creating vif(s) for vm: |%s|"), vm_opaque_ref)
if networks is None:
networks = db.network_get_all_by_instance(admin_context,
instance['id'])
# TODO(tr3buchet) - remove comment in multi-nic
# this bit here about creating the vifs will be updated
# in multi-nic to handle multiple IPs on the same network
# and multiple networks
# for now it works as there is only one of each
for network in networks:
bridge = network['bridge']
network_ref = \
NetworkHelper.find_network_with_bridge(self._session, bridge)
if network_ref:
try:
device = "1" if instance._rescue else "0"
except AttributeError:
device = "0"
VMHelper.create_vif(
self._session,
vm_opaque_ref,
network_ref,
instance.mac_address,
device)
def setup_compute_network(self, context, instance_id):
"""Sets up matching networks for compute hosts.
this code is run on and by the compute host, not on network hosts
"""
networks = db.network_get_all_by_instance(context, instance_id)
for network in networks:
self.driver.ensure_bridge(network['bridge'],
network['bridge_interface'])
def inject_network_info(self, instance):
"""
Generate the network info and make calls to place it into the
xenstore and the xenstore param list
"""
# TODO(tr3buchet) - remove comment in multi-nic
# I've decided to go ahead and consider multiple IPs and networks
# at this stage even though they aren't implemented because these will
# be needed for multi-nic and there was no sense writing it for single
# network/single IP and then having to turn around and re-write it
vm_opaque_ref = self._get_vm_opaque_ref(instance.id)
logging.debug(_("injecting network info to xenstore for vm: |%s|"),
vm_opaque_ref)
admin_context = context.get_admin_context()
IPs = db.fixed_ip_get_all_by_instance(admin_context, instance['id'])
networks = db.network_get_all_by_instance(admin_context,
instance['id'])
for network in networks:
network_IPs = [ip for ip in IPs if ip.network_id == network.id]
def ip_dict(ip):
return {
"ip": ip.address,
"netmask": network["netmask"],
"enabled": "1"}
def ip6_dict(ip6):
return {
"ip": ip6.addressV6,
"netmask": ip6.netmaskV6,
"gateway": ip6.gatewayV6,
"enabled": "1"}
mac_id = instance.mac_address.replace(':', '')
location = 'vm-data/networking/%s' % mac_id
mapping = {
'label': network['label'],
'gateway': network['gateway'],
'mac': instance.mac_address,
'dns': [network['dns']],
'ips': [ip_dict(ip) for ip in network_IPs],
'ip6s': [ip6_dict(ip) for ip in network_IPs]}
self.write_to_param_xenstore(vm_opaque_ref, {location: mapping})
try:
self.write_to_xenstore(vm_opaque_ref, location,
mapping['location'])
except KeyError:
# catch KeyError for domid if instance isn't running
pass
return networks
def get_network_info(instance):
# TODO(tr3buchet): this function needs to go away! network info
# MUST be passed down from compute
# TODO(adiantum) If we will keep this function
# we should cache network_info
admin_context = context.get_admin_context()
fixed_ips = db.fixed_ip_get_by_instance(admin_context, instance['id'])
vifs = db.virtual_interface_get_by_instance(admin_context, instance['id'])
networks = db.network_get_all_by_instance(admin_context,
instance['id'])
flavor = db.instance_type_get_by_id(admin_context,
instance['instance_type_id'])
network_info = []
for vif in vifs:
network = vif['network']
# determine which of the instance's IPs belong to this network
network_ips = [fixed_ip['address'] for fixed_ip in fixed_ips if
fixed_ip['network_id'] == network['id']]
def ip_dict(ip):
return {
'ip': ip,
'netmask': network['netmask'],
'enabled': '1'}
def ip6_dict():
prefix = network['cidr_v6']
mac = vif['address']
project_id = instance['project_id']
return {
'ip': ipv6.to_global(prefix, mac, project_id),
'netmask': network['netmask_v6'],
'enabled': '1'}
mapping = {
'label': network['label'],
'gateway': network['gateway'],
'broadcast': network['broadcast'],
'mac': vif['address'],
'rxtx_cap': flavor['rxtx_cap'],
'dns': [network['dns']],
'ips': [ip_dict(ip) for ip in network_ips]}
if FLAGS.use_ipv6:
mapping['ip6s'] = [ip6_dict()]
mapping['gateway6'] = network['gateway_v6']
network_info.append((network, mapping))
return network_info
def get_network_info(instance):
# TODO(adiantum) If we will keep this function
# we should cache network_info
admin_context = context.get_admin_context()
ip_addresses = db.fixed_ip_get_all_by_instance(admin_context,
instance['id'])
networks = db.network_get_all_by_instance(admin_context,
instance['id'])
flavor = db.instance_type_get_by_id(admin_context,
instance['instance_type_id'])
network_info = []
for network in networks:
network_ips = [ip for ip in ip_addresses
if ip['network_id'] == network['id']]
def ip_dict(ip):
return {
'ip': ip['address'],
'netmask': network['netmask'],
'enabled': '1'}
def ip6_dict():
prefix = network['cidr_v6']
mac = instance['mac_address']
project_id = instance['project_id']
return {
'ip': ipv6.to_global(prefix, mac, project_id),
'netmask': network['netmask_v6'],
'enabled': '1'}
mapping = {
'label': network['label'],
'gateway': network['gateway'],
'broadcast': network['broadcast'],
'mac': instance['mac_address'],
'rxtx_cap': flavor['rxtx_cap'],
'dns': [network['dns']],
'ips': [ip_dict(ip) for ip in network_ips]}
if FLAGS.use_ipv6:
mapping['ip6s'] = [ip6_dict()]
mapping['gateway6'] = network['gateway_v6']
network_info.append((network, mapping))
return network_info
def _get_network_info(self, instance):
"""creates network info list for instance"""
admin_context = context.get_admin_context()
IPs = db.fixed_ip_get_all_by_instance(admin_context, instance['id'])
networks = db.network_get_all_by_instance(admin_context,
instance['id'])
flavor = db.instance_type_get_by_name(admin_context,
instance['instance_type'])
network_info = []
for network in networks:
network_IPs = [ip for ip in IPs if ip.network_id == network.id]
def ip_dict(ip):
return {
"ip": ip.address,
"netmask": network["netmask"],
"enabled": "1"
}
def ip6_dict(ip6):
return {
"ip":
utils.to_global_ipv6(network['cidr_v6'],
instance['mac_address']),
"netmask":
network['netmask_v6'],
"gateway":
network['gateway_v6'],
"enabled":
"1"
}
info = {
'label': network['label'],
'gateway': network['gateway'],
'mac': instance.mac_address,
'rxtx_cap': flavor['rxtx_cap'],
'dns': [network['dns']],
'ips': [ip_dict(ip) for ip in network_IPs]
}
if network['cidr_v6']:
info['ip6s'] = [ip6_dict(ip) for ip in network_IPs]
network_info.append((network, info))
return network_info
def _get_network_info(self, instance):
"""Creates network info list for instance."""
admin_context = context.get_admin_context()
ips = db.fixed_ip_get_all_by_instance(admin_context,
instance['id'])
networks = db.network_get_all_by_instance(admin_context,
instance['id'])
inst_type = db.instance_type_get_by_id(admin_context,
instance['instance_type_id'])
network_info = []
for network in networks:
network_ips = [ip for ip in ips if ip.network_id == network.id]
def ip_dict(ip):
return {
"ip": ip.address,
"netmask": network["netmask"],
"enabled": "1"}
def ip6_dict():
return {
"ip": ipv6.to_global(network['cidr_v6'],
instance['mac_address'],
instance['project_id']),
"netmask": network['netmask_v6'],
"enabled": "1"}
info = {
'label': network['label'],
'gateway': network['gateway'],
'broadcast': network['broadcast'],
'mac': instance.mac_address,
'rxtx_cap': inst_type['rxtx_cap'],
'dns': [network['dns']],
'ips': [ip_dict(ip) for ip in network_ips]}
if network['cidr_v6']:
info['ip6s'] = [ip6_dict()]
if network['gateway_v6']:
info['gateway6'] = network['gateway_v6']
network_info.append((network, info))
return network_info
def _get_network_info(self, instance):
"""creates network info list for instance"""
admin_context = context.get_admin_context()
IPs = db.fixed_ip_get_all_by_instance(admin_context,
instance['id'])
networks = db.network_get_all_by_instance(admin_context,
instance['id'])
flavor = db.instance_type_get_by_name(admin_context,
instance['instance_type'])
network_info = []
for network in networks:
network_IPs = [ip for ip in IPs if ip.network_id == network.id]
def ip_dict(ip):
return {
"ip": ip.address,
"netmask": network["netmask"],
"enabled": "1"}
def ip6_dict(ip6):
return {
"ip": utils.to_global_ipv6(network['cidr_v6'],
instance['mac_address']),
"netmask": network['netmask_v6'],
"gateway": network['gateway_v6'],
"enabled": "1"}
info = {
'label': network['label'],
'gateway': network['gateway'],
'mac': instance.mac_address,
'rxtx_cap': flavor['rxtx_cap'],
'dns': [network['dns']],
'ips': [ip_dict(ip) for ip in network_IPs]}
if network['cidr_v6']:
info['ip6s'] = [ip6_dict(ip) for ip in network_IPs]
network_info.append((network, info))
return network_info
def spawn(self, instance):
"""Create VM instance"""
vm = VMHelper.lookup(self._session, instance.name)
if vm is not None:
raise exception.Duplicate(_('Attempted to create'
' non-unique name %s') % instance.name)
#ensure enough free memory is available
if not VMHelper.ensure_free_mem(self._session, instance):
name = instance['name']
LOG.exception(_('instance %(name)s: not enough free memory')
% locals())
db.instance_set_state(context.get_admin_context(),
instance['id'],
power_state.SHUTDOWN)
return
user = AuthManager().get_user(instance.user_id)
project = AuthManager().get_project(instance.project_id)
#if kernel is not present we must download a raw disk
if instance.kernel_id:
disk_image_type = ImageType.DISK
else:
disk_image_type = ImageType.DISK_RAW
vdi_uuid = VMHelper.fetch_image(self._session, instance.id,
instance.image_id, user, project, disk_image_type)
vdi_ref = self._session.call_xenapi('VDI.get_by_uuid', vdi_uuid)
#Have a look at the VDI and see if it has a PV kernel
pv_kernel = False
if not instance.kernel_id:
pv_kernel = VMHelper.lookup_image(self._session, instance.id,
vdi_ref)
kernel = None
if instance.kernel_id:
kernel = VMHelper.fetch_image(self._session, instance.id,
instance.kernel_id, user, project, ImageType.KERNEL_RAMDISK)
ramdisk = None
if instance.ramdisk_id:
ramdisk = VMHelper.fetch_image(self._session, instance.id,
instance.ramdisk_id, user, project, ImageType.KERNEL_RAMDISK)
vm_ref = VMHelper.create_vm(self._session,
instance, kernel, ramdisk, pv_kernel)
VMHelper.create_vbd(self._session, vm_ref, vdi_ref, 0, True)
# write network info
admin_context = context.get_admin_context()
# TODO(tr3buchet) - remove comment in multi-nic
# I've decided to go ahead and consider multiple IPs and networks
# at this stage even though they aren't implemented because these will
# be needed for multi-nic and there was no sense writing it for single
# network/single IP and then having to turn around and re-write it
IPs = db.fixed_ip_get_all_by_instance(admin_context, instance['id'])
for network in db.network_get_all_by_instance(admin_context,
instance['id']):
network_IPs = [ip for ip in IPs if ip.network_id == network.id]
def ip_dict(ip):
return {'netmask': network['netmask'],
'enabled': '1',
'ip': ip.address}
mac_id = instance.mac_address.replace(':', '')
location = 'vm-data/networking/%s' % mac_id
mapping = {'label': network['label'],
'gateway': network['gateway'],
'mac': instance.mac_address,
'dns': [network['dns']],
'ips': [ip_dict(ip) for ip in network_IPs]}
self.write_to_param_xenstore(vm_ref, {location: mapping})
# TODO(tr3buchet) - remove comment in multi-nic
# this bit here about creating the vifs will be updated
# in multi-nic to handle multiple IPs on the same network
# and multiple networks
# for now it works as there is only one of each
bridge = network['bridge']
network_ref = \
NetworkHelper.find_network_with_bridge(self._session, bridge)
if network_ref:
VMHelper.create_vif(self._session, vm_ref,
network_ref, instance.mac_address)
LOG.debug(_('Starting VM %s...'), vm_ref)
self._session.call_xenapi('VM.start', vm_ref, False, False)
instance_name = instance.name
LOG.info(_('Spawning VM %(instance_name)s created %(vm_ref)s.')
% locals())
def _inject_onset_files():
onset_files = instance.onset_files
if onset_files:
# Check if this is a JSON-encoded string and convert if needed.
if isinstance(onset_files, basestring):
try:
onset_files = json.loads(onset_files)
except ValueError:
LOG.exception(_("Invalid value for onset_files: '%s'")
% onset_files)
onset_files = []
# Inject any files, if specified
for path, contents in instance.onset_files:
LOG.debug(_("Injecting file path: '%s'") % path)
self.inject_file(instance, path, contents)
# NOTE(armando): Do we really need to do this in virt?
# NOTE(tr3buchet): not sure but wherever we do it, we need to call
# reset_network afterwards
timer = utils.LoopingCall(f=None)
def _wait_for_boot():
try:
state = self.get_info(instance['name'])['state']
db.instance_set_state(context.get_admin_context(),
instance['id'], state)
if state == power_state.RUNNING:
LOG.debug(_('Instance %s: booted'), instance['name'])
timer.stop()
_inject_onset_files()
return True
except Exception, exc:
LOG.warn(exc)
LOG.exception(_('instance %s: failed to boot'),
instance['name'])
db.instance_set_state(context.get_admin_context(),
instance['id'],
power_state.SHUTDOWN)
timer.stop()
return False
