def run(self, cfg, migration):
cloud = cfg.clouds[getattr(migration, self.location)]
network_client = clients.network_client(cloud)
compute_client = clients.compute_client(cloud)
storage_client = clients.volume_client(cloud)
try:
if self.net_quota is None:
clients.retry(network_client.delete_quota,
self.admin_tenant_id)
else:
clients.retry(
network_client.update_quota, self.admin_tenant_id, {
'quota': {
'network': self.net_quota['network'],
'subnet': self.net_quota['subnet'],
'port': self.net_quota['port'],
}
})
except neutron_exceptions.NotFound:
pass
if self.compute_quota:
clients.retry(compute_client.quotas.update, self.admin_tenant_id,
**self.compute_quota)
if self.storage_quota:
clients.retry(storage_client.quotas.update, self.obj_tenant_id,
**self.storage_quota)
def _delete_vm(cloud, vm_id):
nova_client = clients.compute_client(cloud)
for do_reset in (False, True):
try:
if do_reset:
clients.retry(nova_client.servers.reset_state,
vm_id,
expected_exceptions=[nova_exceptions.NotFound])
try:
clients.retry(nova_client.servers.delete,
vm_id,
expected_exceptions=[nova_exceptions.NotFound])
except nova_exceptions.NotFound:
raise
except nova_exceptions.ClientException:
LOG.error('Failed to delete VM %s from cloud %s',
vm_id,
cloud.name,
exc_info=True)
continue
if clients.wait_for(_object_is_deleted, nova_client, 'servers',
vm_id, nova_exceptions.NotFound):
return True
except nova_exceptions.NotFound:
return True
except clients.Timeout:
continue
LOG.error('Timeout waiting for VM %s from cloud %s to be deleted',
vm_id,
cloud.name,
exc_info=True)
return False
def discover_one(self, uuid):
compute_client = clients.compute_client(self.cloud)
raw_flavor = self.retry(compute_client.flavors.get, uuid)
# TODO: implement
return compute.Flavor.load({
'object_id': self.make_id(raw_flavor.id),
})
def discover_one(self, uuid):
compute_client = clients.compute_client(self.cloud)
try:
raw_server = self.retry(compute_client.servers.get,
uuid,
expected_exceptions=[exceptions.NotFound])
except exceptions.NotFound:
raise discover.NotFound()
# Check if server host is available
avail_hosts = self._list_available_compute_hosts(compute_client)
host = getattr(raw_server, EXT_ATTR_HOST)
if host not in avail_hosts:
LOG.warning('Skipping server %s, host not available.', host)
return None
# Convert server data to model conforming format
server = self.load_from_cloud(raw_server)
with remote.RemoteExecutor(self.cloud,
server.hypervisor_host) as remote_executor:
_populate_ephemeral_disks(remote_executor, server)
# Store server
with model.Session() as session:
session.store(server)
if _need_image_membership(server):
image_member_uuid = image.ImageMember.make_uuid(
server.image, server.tenant)
server.image_membership = self.find_obj(
image.ImageMember, image_member_uuid)
return server
def migrate(self, source_obj, *args, **kwargs):
int_ip_address = _allocate_ip_address(self.cloud)
nova_client = clients.compute_client(self.cloud)
self.created_object = nova_client.servers.create(
image=kwargs[self.image_var_name],
flavor=kwargs[self.flavor_var_name].flavor_id,
name='trans_vol_{}'.format(source_obj.object_id.id),
config_drive=True,
nics=[{
'net-id': kwargs[self.net_var_name].object_id.id
}],
meta=dict(cidr=str(int_ip_address),
internal_address=str(int_ip_address.ip),
access_key=RSA1024_KEY.get_base64()))
try:
self.created_object = clients.wait_for(_object_status_is,
nova_client, 'servers',
self.created_object.id,
'active')
except clients.Timeout:
self._delete_vm()
raise base.AbortMigration(
'Timeout waiting for VM %s to start on %s',
self.created_object.id, self.location)
result = self.load_from_cloud(compute.Server, self.cloud,
self.created_object)
return {self.var_name: result}
def discover_one(self, uuid):
compute_client = clients.compute_client(self.cloud)
raw_flavor = self.retry(compute_client.flavors.get, uuid)
# TODO: implement
return compute.Flavor.load({
'object_id': self.make_id(raw_flavor.id),
})
def discover_one(self, uuid):
compute_client = clients.compute_client(self.cloud)
try:
raw_server = self.retry(compute_client.servers.get, uuid,
expected_exceptions=[exceptions.NotFound])
except exceptions.NotFound:
raise discover.NotFound()
# Check if server host is available
avail_hosts = self._list_available_compute_hosts(compute_client)
host = getattr(raw_server, EXT_ATTR_HOST)
if host not in avail_hosts:
LOG.warning('Skipping server %s, host not available.',
host)
return None
# Convert server data to model conforming format
server = self.load_from_cloud(raw_server)
with remote.RemoteExecutor(
self.cloud, server.hypervisor_host) as remote_executor:
_populate_ephemeral_disks(remote_executor, server)
# Store server
with model.Session() as session:
session.store(server)
if _need_image_membership(server):
image_member_uuid = image.ImageMember.make_uuid(
server.image, server.tenant)
server.image_membership = self.find_obj(
image.ImageMember, image_member_uuid)
return server
def _set_compute_quotas(self, tenant_id):
compute_client = clients.compute_client(self.cloud)
return self._set_quotas(compute_client,
tenant_id,
cores=-1,
ram=-1,
injected_file_content_bytes=-1,
instances=-1,
fixed_ips=-1)
def run(self, cfg, migration):
cloud = cfg.clouds[getattr(migration, self.location)]
nova_client = clients.compute_client(cloud)
try:
with model.Session() as session:
session.delete(compute.Flavor, object_id=self.object_id)
clients.retry(nova_client.flavors.delete,
self.flavor_id,
expected_exceptions=[nova_exceptions.NotFound])
except nova_exceptions.NotFound:
pass
def discover_one(self, uuid):
server_id, volume_id = uuid.split(':')
compute_client = clients.compute_client(self.cloud)
try:
raw_attachment = self.retry(
compute_client.volumes.get_server_volume, server_id, volume_id,
expected_exceptions=[nova_exceptions.NotFound])
attachment = self.load_from_cloud(raw_attachment)
with model.Session() as session:
session.store(attachment)
return attachment
except nova_exceptions.NotFound:
raise discover.NotFound()
def _create_flavor(self):
nova_client = clients.compute_client(self.cloud)
flavor_id = str(uuid.uuid4())
clients.retry(nova_client.flavors.create,
'tmp.vol_tx',
64,
1,
0,
flavorid=flavor_id,
is_public=False)
flavor_discoverer = discover.get_discoverer(self.config, self.cloud,
compute.Flavor)
flavor = flavor_discoverer.discover_by_flavor_id(flavor_id)
return flavor
def discover_all(self):
compute_client = clients.compute_client(self.cloud)
avail_hosts = self._list_available_compute_hosts(compute_client)
servers = {}
# Go through each tenant since nova don't return more items than
# specified in osapi_max_limit configuration option (1000 by default)
# in single API call
for tenant in self._get_tenants():
LOG.debug('Discovering servers from cloud "%s" tenant "%s"',
self.cloud.name, tenant.name)
tenant_id = tenant.id
raw_server_list = self.retry(compute_client.servers.list,
search_opts={
'all_tenants': True,
'tenant_id': tenant_id,
},
returns_iterable=True)
for raw_server in raw_server_list:
host = getattr(raw_server, EXT_ATTR_HOST)
if host not in avail_hosts:
LOG.warning(
'Skipping server %s in tenant %s, host not '
'available.', host, tenant.name)
continue
# Convert server data to model conforming format
server = self.load_from_cloud(raw_server)
hyper_host = getattr(raw_server, EXT_ATTR_HYPER_HOST)
servers.setdefault(hyper_host, []).append(server)
# Collect information about ephemeral disks
# TODO: work with different servers in parallel
for host, host_servers in servers.items():
LOG.debug(
'Getting ephemeral disks information from cloud %s '
'host %s', self.cloud.name, host)
with remote.RemoteExecutor(self.cloud, host) as remote_executor:
for server in host_servers:
_populate_ephemeral_disks(remote_executor, server)
# Store data to local database
with model.Session() as session:
for host_servers in servers.values():
for server in host_servers:
session.store(server)
if _need_image_membership(server):
image_member_uuid = image.ImageMember.make_uuid(
server.image, server.tenant)
server.image_membership = self.find_obj(
image.ImageMember, image_member_uuid)
def restore_internal_state(self, internal_state):
vm_id = internal_state['vm_id']
self.created_object = None
if vm_id is not None:
compute_client = clients.compute_client(self.cloud)
try:
self.created_object = clients.retry(
compute_client.servers.get,
vm_id,
expected_exceptions=[nova_exceptions.NotFound])
except nova_exceptions.NotFound:
LOG.warning(
'Failed to find VM with id %s when restoring '
'task state', vm_id)
def load_from_cloud(self, data):
compute_client = clients.compute_client(self.cloud)
# Workaround for grizzly lacking EXT_ATTR_VOL_ATTACHMENTS
if hasattr(data, EXT_ATTR_VOL_ATTACHMENTS):
raw_attachments = [
'{0}:{1}'.format(data.id, attachment['id'])
for attachment in getattr(data, EXT_ATTR_VOL_ATTACHMENTS)
]
else:
raw_attachments = [
'{0}:{1}'.format(attachment.serverId, attachment.volumeId)
for attachment in self.retry(
compute_client.volumes.get_server_volumes,
data.id,
returns_iterable=True)
]
server_image = None
if data.image:
server_image = data.image['id']
attached_volumes = [
self.find_ref(storage.Attachment, attachment)
for attachment in raw_attachments
]
with cloud_db.connection(self.cloud.nova_db) as db:
flavor_id = self._get_flavor(db, data.id)
hypervisor_host = getattr(data, EXT_ATTR_HYPER_HOST)
server_dict = {
'object_id': self.make_id(data.id),
'security_groups': [], # TODO: implement security groups
'tenant': self.find_ref(identity.Tenant, data.tenant_id),
'image': self.find_ref(image.Image, server_image),
'image_membership': None,
'flavor': self.find_ref(compute.Flavor, flavor_id),
'availability_zone': getattr(data, EXT_ATTR_AZ),
'host': getattr(data, EXT_ATTR_HOST),
'hypervisor_hostname': hypervisor_host,
'instance_name': getattr(data, EXT_ATTR_INSTANCE_NAME),
'attached_volumes': [av for av in attached_volumes if av],
'ephemeral_disks': [], # Ephemeral disks will be filled later
'compute_node': self.find_ref(compute.ComputeNode,
hypervisor_host),
}
for attr_name in ('name', 'status', 'user_id', 'key_name',
'config_drive', 'metadata'):
if hasattr(data, attr_name):
server_dict[attr_name] = getattr(data, attr_name)
return compute.Server.load(server_dict)
def discover_one(self, uuid):
server_id, volume_id = uuid.split(':')
compute_client = clients.compute_client(self.cloud)
try:
raw_attachment = self.retry(
compute_client.volumes.get_server_volume,
server_id,
volume_id,
expected_exceptions=[nova_exceptions.NotFound])
attachment = self.load_from_cloud(raw_attachment)
with model.Session() as session:
session.store(attachment)
return attachment
except nova_exceptions.NotFound:
raise discover.NotFound()
def discover_all(self):
compute_client = clients.compute_client(self.cloud)
avail_hosts = self._list_available_compute_hosts(compute_client)
servers = {}
# Go through each tenant since nova don't return more items than
# specified in osapi_max_limit configuration option (1000 by default)
# in single API call
for tenant in self._get_tenants():
LOG.debug('Discovering servers from cloud "%s" tenant "%s"',
self.cloud.name, tenant.name)
tenant_id = tenant.id
raw_server_list = self.retry(compute_client.servers.list,
search_opts={
'all_tenants': True,
'tenant_id': tenant_id,
},
returns_iterable=True)
for raw_server in raw_server_list:
host = getattr(raw_server, EXT_ATTR_HOST)
if host not in avail_hosts:
LOG.warning('Skipping server %s in tenant %s, host not '
'available.', host, tenant.name)
continue
# Convert server data to model conforming format
server = self.load_from_cloud(raw_server)
hyper_host = getattr(raw_server, EXT_ATTR_HYPER_HOST)
servers.setdefault(hyper_host, []).append(server)
# Collect information about ephemeral disks
# TODO: work with different servers in parallel
for host, host_servers in servers.items():
LOG.debug('Getting ephemeral disks information from cloud %s '
'host %s', self.cloud.name, host)
with remote.RemoteExecutor(self.cloud, host) as remote_executor:
for server in host_servers:
_populate_ephemeral_disks(remote_executor, server)
# Store data to local database
with model.Session() as session:
for host_servers in servers.values():
for server in host_servers:
session.store(server)
if _need_image_membership(server):
image_member_uuid = image.ImageMember.make_uuid(
server.image, server.tenant)
server.image_membership = self.find_obj(
image.ImageMember, image_member_uuid)
def migrate(self, source_obj, *args, **kwargs):
cinder_client = clients.volume_client(
self.src_cloud, _scope(source_obj.tenant.object_id.id))
raw_volume = clients.retry(cinder_client.volumes.get,
source_obj.object_id.id)
if raw_volume.attachments:
nova_client = clients.compute_client(self.src_cloud)
assert len(raw_volume.attachments) == 1
detached_vm_id = raw_volume.attachments[0]['server_id']
shutoff_vm(nova_client, detached_vm_id)
self._detach_volume(self.src_cloud,
source_obj,
detached_vm_id,
abort_migration=True)
self.detached_vm_id = detached_vm_id
return dict(attached_vm_id=self.detached_vm_id)
def _detach_volume(self, cloud, volume, vm_id, abort_migration=False):
volume_id = volume.object_id.id
nova_client = clients.compute_client(cloud)
cinder_client = clients.volume_client(
cloud, _scope(volume.tenant.object_id.id))
if _object_is_deleted(cinder_client, 'volumes', volume_id,
cinder_exceptions.NotFound):
return
if _object_status_is(cinder_client, 'volumes', volume_id, 'in-use'):
nova_client.volumes.delete_server_volume(vm_id, volume_id)
try:
clients.wait_for(_object_status_is, cinder_client, 'volumes',
volume_id, 'available')
except clients.Timeout:
if abort_migration:
raise base.AbortMigration(
'Volume %s in cloud %s couldn\'t attach', volume_id,
cloud.name)
def _attach_volume(self, cloud, volume, vm_id):
volume_id = volume.object_id.id
nova_client = clients.compute_client(cloud)
cinder_client = clients.volume_client(
cloud, _scope(volume.tenant.object_id.id))
if _object_status_is(cinder_client, 'volumes', volume_id, 'available'):
nova_client.volumes.create_server_volume(vm_id, volume_id,
'/dev/vdb')
try:
clients.wait_for(_object_status_is, cinder_client, 'volumes',
volume_id, 'in-use')
except clients.Timeout:
raise base.AbortMigration(
'Volume %s in cloud %s couldn\'t attach', volume_id,
cloud.name)
else:
raise base.AbortMigration(
'Volume %s in cloud %s is not available for attachment',
volume_id, cloud.name)
def load_from_cloud(self, data):
compute_client = clients.compute_client(self.cloud)
# Workaround for grizzly lacking EXT_ATTR_VOL_ATTACHMENTS
if hasattr(data, EXT_ATTR_VOL_ATTACHMENTS):
raw_attachments = [
'{0}:{1}'.format(data.id, attachment['id'])
for attachment in
getattr(data, EXT_ATTR_VOL_ATTACHMENTS)]
else:
raw_attachments = [
'{0}:{1}'.format(attachment.serverId, attachment.volumeId)
for attachment in
self.retry(compute_client.volumes.get_server_volumes, data.id,
returns_iterable=True)]
server_image = None
if data.image:
server_image = data.image['id']
attached_volumes = [self.find_ref(storage.Attachment, attachment)
for attachment in raw_attachments]
server_dict = {
'object_id': self.make_id(data.id),
'security_groups': [], # TODO: implement security groups
'tenant': self.find_ref(identity.Tenant, data.tenant_id),
'image': self.find_ref(image.Image, server_image),
'image_membership': None,
'flavor': self.find_ref(compute.Flavor, data.flavor['id']),
'availability_zone': getattr(data, EXT_ATTR_AZ),
'host': getattr(data, EXT_ATTR_HOST),
'hypervisor_hostname': getattr(data, EXT_ATTR_HYPER_HOST),
'instance_name': getattr(data, EXT_ATTR_INSTANCE_NAME),
'attached_volumes': [av for av in attached_volumes if av],
'ephemeral_disks': [], # Ephemeral disks will be filled later
}
for attr_name in ('name', 'status', 'user_id', 'key_name',
'config_drive', 'metadata'):
if hasattr(data, attr_name):
server_dict[attr_name] = getattr(data, attr_name)
return compute.Server.load(server_dict)
def compute_client(self, scope=None):
# pylint: disable=no-member
return clients.compute_client(self.credential, scope or self.scope)
