def delete_floating_ip(instance_id):
fl_ips = nova.client().floating_ips.findall(instance_id=instance_id)
for fl_ip in fl_ips:
if CONF.use_neutron:
nova.client().floating_ips.delete(fl_ip.id)
else:
nova.client().floating_ips.delete(fl_ip.ip)
def _shutdown_instance(self, instance):
ctx = context.ctx()
if instance.node_group.floating_ip_pool:
try:
networks.delete_floating_ip(instance.instance_id)
except nova_exceptions.NotFound:
LOG.warn("Attempted to delete non-existent floating IP in "
"pool %s from instancie %s",
instance.node_group.floating_ip_pool,
instance.instance_id)
try:
volumes.detach_from_instance(instance)
except Exception:
LOG.warn("Detaching volumes from instance %s failed",
instance.instance_id)
try:
nova.client().servers.delete(instance.instance_id)
except nova_exceptions.NotFound:
LOG.warn("Attempted to delete non-existent instance %s",
instance.instance_id)
conductor.instance_remove(ctx, instance)
def _shutdown_instance(self, instance):
ctx = context.ctx()
if instance.node_group.floating_ip_pool:
try:
networks.delete_floating_ip(instance.instance_id)
except nova_exceptions.NotFound:
LOG.warn(
"Attempted to delete non-existent floating IP in "
"pool %s from instancie %s",
instance.node_group.floating_ip_pool, instance.instance_id)
try:
volumes.detach_from_instance(instance)
except Exception:
LOG.warn("Detaching volumes from instance %s failed",
instance.instance_id)
try:
nova.client().servers.delete(instance.instance_id)
except nova_exceptions.NotFound:
LOG.warn("Attempted to delete non-existent instance %s",
instance.instance_id)
conductor.instance_remove(ctx, instance)
def delete_floating_ip(instance_id):
fl_ips = nova.client().floating_ips.findall(instance_id=instance_id)
for fl_ip in fl_ips:
if CONF.use_neutron:
nova.client().floating_ips.delete(fl_ip.id)
else:
nova.client().floating_ips.delete(fl_ip.ip)
def _shutdown_instance(instance):
ctx = context.ctx()
try:
nova.client().servers.delete(instance.instance_id)
except nova_exceptions.NotFound:
#Just ignore non-existing instances
pass
conductor.instance_remove(ctx, instance)
def _shutdown_instance(instance):
ctx = context.ctx()
try:
nova.client().servers.delete(instance.instance_id)
except nova_exceptions.NotFound:
#Just ignore non-existing instances
pass
conductor.instance_remove(ctx, instance)
def _shutdown_instance(instance):
session = context.ctx().session
try:
nova.client().servers.delete(instance.instance_id)
except nova_exceptions.NotFound:
#Just ignore non-existing instances
pass
with session.begin():
session.delete(instance)
def _shutdown_instance(instance):
ctx = context.ctx()
try:
if instance.node_group.floating_ip_pool:
networks.delete_floating_ip(instance.instance_id)
nova.client().servers.delete(instance.instance_id)
except nova_exceptions.NotFound:
#Just ignore non-existing instances
pass
conductor.instance_remove(ctx, instance)
def _shutdown_instance(instance):
ctx = context.ctx()
try:
if instance.node_group.floating_ip_pool:
networks.delete_floating_ip(instance.instance_id)
nova.client().servers.delete(instance.instance_id)
except nova_exceptions.NotFound:
#Just ignore non-existing instances
pass
conductor.instance_remove(ctx, instance)
def _rollback_cluster_creation(cluster, ex):
"""Shutdown all instances and update cluster status."""
LOG.info("Cluster '%s' creation rollback (reason: %s)", cluster.name, ex)
session = context.ctx().session
_shutdown_instances(cluster, True)
volumes.detach(cluster)
alive_instances = set([srv.id for srv in nova.client().servers.list()])
for node_group in cluster.node_groups:
for instance in node_group.instances:
if instance.instance_id in alive_instances:
nova.client().servers.delete(instance.instance_id)
with session.begin():
session.delete(instance)
def _run_instance(cluster, node_group, idx, aa_groups, userdata):
"""Create instance using nova client and persist them into DB."""
ctx = context.ctx()
name = '%s-%s-%03d' % (cluster.name, node_group.name, idx)
# aa_groups: node process -> instance ids
aa_ids = []
for node_process in node_group.node_processes:
aa_ids += aa_groups.get(node_process) or []
# create instances only at hosts w/ no instances w/ aa-enabled processes
hints = {'different_host': list(set(aa_ids))} if aa_ids else None
nova_instance = nova.client().servers.create(
name,
node_group.get_image_id(),
node_group.flavor_id,
scheduler_hints=hints,
userdata=userdata,
key_name=cluster.user_keypair_id)
instance_id = conductor.instance_add(ctx, node_group, {
"instance_id": nova_instance.id,
"instance_name": name
})
# save instance id to aa_groups to support aa feature
for node_process in node_group.node_processes:
if node_process in cluster.anti_affinity:
aa_group_ids = aa_groups.get(node_process, [])
aa_group_ids.append(nova_instance.id)
aa_groups[node_process] = aa_group_ids
return instance_id
def _run_instance(cluster, node_group, idx, aa_groups, userdata):
"""Create instance using nova client and persist them into DB."""
session = context.ctx().session
name = '%s-%s-%03d' % (cluster.name, node_group.name, idx)
# aa_groups: node process -> instance ids
aa_ids = []
for node_process in node_group.node_processes:
aa_ids += aa_groups.get(node_process) or []
# create instances only at hosts w/ no instances w/ aa-enabled processes
hints = {'different_host': list(set(aa_ids))} if aa_ids else None
context.model_save(node_group)
nova_instance = nova.client().servers.create(
name, node_group.get_image_id(), node_group.flavor_id,
scheduler_hints=hints, userdata=userdata,
key_name=cluster.user_keypair_id)
with session.begin():
instance = m.Instance(node_group.id, nova_instance.id, name)
node_group.instances.append(instance)
session.add(instance)
# save instance id to aa_groups to support aa feature
for node_process in node_group.node_processes:
if node_process in cluster.anti_affinity:
aa_group_ids = aa_groups.get(node_process, [])
aa_group_ids.append(nova_instance.id)
aa_groups[node_process] = aa_group_ids
return instance
def init_instances_ips(instance, server):
"""Extracts internal and management ips.
As internal ip will be used the first ip from the nova networks CIDRs.
If use_floating_ip flag is set than management ip will be the first
non-internal ip.
"""
ctx = context.ctx()
if instance.internal_ip and instance.management_ip:
return True
management_ip = instance.management_ip
internal_ip = instance.internal_ip
for network_label in server.networks:
nova_network = nova.client().networks.find(label=network_label)
network = netaddr.IPNetwork(nova_network.cidr)
for ip in server.networks[network_label]:
if netaddr.IPAddress(ip) in network:
internal_ip = instance.internal_ip or ip
else:
management_ip = instance.management_ip or ip
if not CONF.use_floating_ips:
management_ip = internal_ip
conductor.instance_update(ctx, instance, {
"management_ip": management_ip,
"internal_ip": internal_ip
})
return internal_ip and management_ip
def init_instances_ips(instance, server):
"""Extracts internal and management ips.
As internal ip will be used the first ip from the nova networks CIDRs.
If use_floating_ip flag is set than management ip will be the first
non-internal ip.
"""
ctx = context.ctx()
if instance.internal_ip and instance.management_ip:
return True
management_ip = instance.management_ip
internal_ip = instance.internal_ip
for network_label in server.networks:
nova_network = nova.client().networks.find(label=network_label)
network = netaddr.IPNetwork(nova_network.cidr)
for ip in server.networks[network_label]:
if netaddr.IPAddress(ip) in network:
internal_ip = instance.internal_ip or ip
else:
management_ip = instance.management_ip or ip
if not CONF.use_floating_ips:
management_ip = internal_ip
conductor.instance_update(ctx, instance, {"management_ip": management_ip,
"internal_ip": internal_ip})
return internal_ip and management_ip
def _create_attach_volume(instance, size, device_path, display_name=None,
volume_type=None):
volume = cinder.client().volumes.create(size=size,
display_name=display_name,
volume_type=volume_type)
instance.volumes.append(volume.id)
while volume.status != 'available':
volume = cinder.get_volume(volume.id)
if volume.status == 'error':
raise RuntimeError("Volume %s has error status" % volume.id)
context.sleep(1)
nova.client().volumes.create_server_volume(instance.instance_id,
volume.id, device_path)
def _create_attach_volume(ctx, instance, size, display_name=None,
volume_type=None):
volume = cinder.client().volumes.create(size=size,
display_name=display_name,
volume_type=volume_type)
conductor.append_volume(ctx, instance, volume.id)
while volume.status != 'available':
volume = cinder.get_volume(volume.id)
if volume.status == 'error':
raise RuntimeError("Volume %s has error status" % volume.id)
context.sleep(1)
nova.client().volumes.create_server_volume(instance.instance_id,
volume.id, None)
def user_keypair(self):
"""Extract user keypair object from nova.
It contains 'public_key' and 'fingerprint' fields.
"""
if not hasattr(self, '_user_kp'):
try:
self._user_kp = nova.client().keypairs.get(
self.user_keypair_id)
except nova_ex.NotFound:
self._user_kp = None
return self._user_kp
def _run_instance(self, cluster, node_group, idx, aa_groups, userdata):
"""Create instance using nova client and persist them into DB."""
ctx = context.ctx()
name = '%s-%s-%03d' % (cluster.name, node_group.name, idx)
# aa_groups: node process -> instance ids
aa_ids = []
for node_process in node_group.node_processes:
aa_ids += aa_groups.get(node_process) or []
# create instances only at hosts w/ no instances
# w/ aa-enabled processes
hints = {'different_host': list(set(aa_ids))} if aa_ids else None
if CONF.use_neutron:
net_id = cluster.neutron_management_network
nics = [{"net-id": net_id, "v4-fixed-ip": ""}]
nova_instance = nova.client().servers.create(
name, node_group.get_image_id(), node_group.flavor_id,
scheduler_hints=hints, userdata=userdata,
key_name=cluster.user_keypair_id,
nics=nics)
else:
nova_instance = nova.client().servers.create(
name, node_group.get_image_id(), node_group.flavor_id,
scheduler_hints=hints, userdata=userdata,
key_name=cluster.user_keypair_id)
instance_id = conductor.instance_add(ctx, node_group,
{"instance_id": nova_instance.id,
"instance_name": name})
# save instance id to aa_groups to support aa feature
for node_process in node_group.node_processes:
if node_process in cluster.anti_affinity:
aa_group_ids = aa_groups.get(node_process, [])
aa_group_ids.append(nova_instance.id)
aa_groups[node_process] = aa_group_ids
return instance_id
def init_neutron_ips(instance, server):
ctx = context.ctx()
net_id = instance.node_group.cluster.neutron_management_network
net_name = nova.client().networks.get(net_id).label
internal_ip = server.networks.get(net_name, [None])[0]
management_ip = internal_ip
conductor.instance_update(ctx, instance, {"management_ip": management_ip,
"internal_ip": internal_ip})
return internal_ip
def generate_topology_map(cluster, is_node_awareness):
mapping = _read_compute_topology()
nova_client = nova.client()
topology_mapping = {}
for ng in cluster.node_groups:
for i in ng.instances:
#TODO(alazarev) get all servers info with one request
ni = nova_client.servers.get(i.instance_id)
hostId = ni.hostId
if hostId not in mapping:
raise ex.NotFoundException(
i.instance_id, "Was not able to find compute node "
"topology for VM %s")
rack = mapping[hostId]
if is_node_awareness:
rack += "/" + hostId
topology_mapping[i.instance_name] = rack
topology_mapping[i.management_ip] = rack
topology_mapping[i.internal_ip] = rack
topology_mapping.update(_read_swift_topology())
return topology_mapping
def generate_topology_map(cluster, is_node_awareness):
mapping = _read_compute_topology()
nova_client = nova.client()
topology_mapping = {}
for ng in cluster.node_groups:
for i in ng.instances:
#TODO(alazarev) get all servers info with one request
ni = nova_client.servers.get(i.instance_id)
hostId = ni.hostId
if hostId not in mapping:
raise ex.NotFoundException(
i.instance_id, "Was not able to find compute node "
"topology for VM %s")
rack = mapping[hostId]
if is_node_awareness:
rack += "/" + hostId
topology_mapping[i.instance_name] = rack
topology_mapping[i.management_ip] = rack
topology_mapping[i.internal_ip] = rack
topology_mapping.update(_read_swift_topology())
return topology_mapping
def register_image(image_id, username, description=None):
client = nova.client()
client.images.set_description(image_id, username, description)
return client.images.get(image_id)
def get_node_group_image_username(self, node_group):
image_id = node_group.get_image_id()
return nova.client().images.get(image_id).username
def assign_floating_ip(instance_id, pool):
ip = nova.client().floating_ips.create(pool)
nova.client().servers.get(instance_id).add_floating_ip(ip)
def nova_info(self):
"""Returns info from nova about instance."""
return nova.client().servers.get(self.instance_id)
def username(self):
if not hasattr(self, '_username'):
image_id = self.get_image_id()
self._username = nova.client().images.get(image_id).username
return self._username
def add_image_tags(image_id, tags):
client = nova.client()
client.images.tag(image_id, tags)
return client.images.get(image_id)
def check_flavor_exists(flavor_id):
try:
nova.client().flavors.get(flavor_id)
except nova_ex.NotFound:
raise ex.InvalidException("Requested flavor '%s' not found" %
flavor_id)
def check_flavor_exists(flavor_id):
flavor_list = nova.client().flavors.list()
if flavor_id not in [flavor.id for flavor in flavor_list]:
raise ex.InvalidException("Requested flavor '%s' not found" %
flavor_id)
def get_images(tags):
return nova.client().images.list_registered(tags)
def check_keypair_exists(keypair):
try:
nova.client().keypairs.get(keypair)
except nova_ex.NotFound:
raise ex.InvalidException("Requested keypair '%s' not found" % keypair)
def check_keypair_exists(keypair):
try:
nova.client().keypairs.get(keypair)
except nova_ex.NotFound:
raise ex.InvalidException("Requested keypair '%s' not found" % keypair)
def check_image_registered(image_id):
if image_id not in [i.id for i in nova.client().images.list_registered()]:
raise ex.InvalidException("Requested image '%s' is not registered" %
image_id)
def get_image(**kwargs):
if len(kwargs) == 1 and 'id' in kwargs:
return nova.client().images.get(kwargs['id'])
else:
return nova.client().images.find(**kwargs)
def delete_floating_ip(instance_id):
fl_ips = nova.client().floating_ips.findall(instance_id=instance_id)
for fl_ip in fl_ips:
nova.client().floating_ips.delete(fl_ip.id)
def unregister_image(image_id):
client = nova.client()
client.images.unset_description(image_id)
return client.images.get(image_id)
def delete_floating_ip(instance_id):
fl_ips = nova.client().floating_ips.findall(instance_id=instance_id)
for fl_ip in fl_ips:
nova.client().floating_ips.delete(fl_ip.id)
def remove_image_tags(image_id, tags):
client = nova.client()
client.images.untag(image_id, tags)
return client.images.get(image_id)
def _get_node_group_image_username(node_group):
image_id = node_group.get_image_id()
return nova.client().images.get(image_id).username
def check_flavor_exists(flavor_id):
try:
nova.client().flavors.get(flavor_id)
except nova_ex.NotFound:
raise ex.InvalidException("Requested flavor '%s' not found"
% flavor_id)
def assign_floating_ip(instance_id, pool):
ip = nova.client().floating_ips.create(pool)
nova.client().servers.get(instance_id).add_floating_ip(ip)
def check_image_registered(image_id):
if image_id not in [i.id for i in nova.client().images.list_registered()]:
raise ex.InvalidException("Requested image '%s' is not registered"
% image_id)
def check_flavor_exists(flavor_id):
flavor_list = nova.client().flavors.list()
if flavor_id not in [flavor.id for flavor in flavor_list]:
raise ex.InvalidException("Requested flavor '%s' not found"
% flavor_id)
