def add_subnet(auth, fields):
driver = OpenStackDriver(client=auth_check(auth))
slices = _get_slices(fields.get('slice'))
if slices: fields['slice'] = slices[0]
subnet = Subnet(**fields)
# create quantum subnet
quantum_subnet = driver.create_subnet(name=subnet.slice.name,
network_id=subnet.slice.network_id,
cidr_ip=subnet.cidr,
ip_version=subnet.ip_version,
start=subnet.start,
end=subnet.end)
subnet.subnet_id = quantum_subnet['id']
## set dns servers
#driver.update_subnet(subnet.id, {'dns_nameservers': ['8.8.8.8', '8.8.4.4']})
# add subnet as interface to slice's router
try:
driver.add_router_interface(subnet.slice.router_id, subnet.subnet_id)
except:
pass
#add_route = 'route add -net %s dev br-ex gw 10.100.0.5' % self.cidr
commands.getstatusoutput(add_route)
subnet.save()
return subnet
def add_subnet(auth, fields):
driver = OpenStackDriver(client = auth_check(auth))
slices = _get_slices(fields.get('slice'))
if slices: fields['slice'] = slices[0]
subnet = Subnet(**fields)
# create quantum subnet
quantum_subnet = driver.create_subnet(name= subnet.slice.name,
network_id=subnet.slice.network_id,
cidr_ip = subnet.cidr,
ip_version=subnet.ip_version,
start = subnet.start,
end = subnet.end)
subnet.subnet_id=quantum_subnet['id']
## set dns servers
#driver.update_subnet(subnet.id, {'dns_nameservers': ['8.8.8.8', '8.8.4.4']})
# add subnet as interface to slice's router
try: driver.add_router_interface(subnet.slice.router_id, subnet.subnet_id)
except: pass
#add_route = 'route add -net %s dev br-ex gw 10.100.0.5' % self.cidr
commands.getstatusoutput(add_route)
subnet.save()
return subnet
class OpenStackManager:
def __init__(self, auth={}, caller=None):
self.client = None
self.driver = None
self.caller = None
self.has_openstack = has_openstack
self.enabled = manager_enabled
if has_openstack and manager_enabled:
if auth:
try:
self.init_user(auth, caller)
except:
# if this fails then it meanse the caller doesn't have a
# role at the slice's tenant. if the caller is an admin
# just use the admin client/manager.
if caller and caller.is_admin:
self.init_admin()
else: raise
else:
self.init_admin()
@require_enabled
def init_caller(self, caller, tenant):
auth = {'username': caller.email,
'password': hashlib.md5(caller.password).hexdigest()[:6],
'tenant': tenant}
self.client = OpenStackClient(**auth)
self.driver = OpenStackDriver(client=self.client)
self.caller = caller
@require_enabled
def init_admin(self, tenant=None):
# use the admin credentials
self.client = OpenStackClient(tenant=tenant)
self.driver = OpenStackDriver(client=self.client)
self.caller = self.driver.admin_user
self.caller.kuser_id = self.caller.id
@require_enabled
def save_role(self, role):
if not role.role:
keystone_role = self.driver.create_role(role.role_type)
role.role = keystone_role.id
@require_enabled
def delete_role(self, role):
if role.role:
self.driver.delete_role({'id': role.role})
@require_enabled
def save_key(self, key, name):
key_fields = {'name': name,
'public_key': key}
nova_key = self.driver.create_keypair(**key_fields)
@require_enabled
def delete_key(self, key):
if key.nkey_id:
self.driver.delete_keypair(key.nkey_id)
@require_enabled
def save_user(self, user):
name = user.email[:user.email.find('@')]
user_fields = {'name': name,
'email': user.email,
'password': hashlib.md5(user.password).hexdigest()[:6],
'enabled': True}
if not user.kuser_id:
keystone_user = self.driver.create_user(**user_fields)
user.kuser_id = keystone_user.id
else:
self.driver.update_user(user.kuser_id, user_fields)
if user.site:
self.driver.add_user_role(user.kuser_id, user.site.tenant_id, 'user')
if user.is_admin:
self.driver.add_user_role(user.kuser_id, user.site.tenant_id, 'admin')
else:
# may have admin role so attempt to remove it
self.driver.delete_user_role(user.kuser_id, user.site.tenant_id, 'admin')
if user.public_key:
self.init_caller(user, user.site.login_base)
self.save_key(user.public_key, user.keyname)
self.init_admin()
user.save()
user.enacted = timezone.now()
user.save(update_fields=['enacted'])
@require_enabled
def delete_user(self, user):
if user.kuser_id:
self.driver.delete_user(user.kuser_id)
@require_enabled
def save_site(self, site, add_role=True):
if not site.tenant_id:
tenant = self.driver.create_tenant(tenant_name=site.login_base,
description=site.name,
enabled=site.enabled)
site.tenant_id = tenant.id
# give caller an admin role at the tenant they've created
self.driver.add_user_role(self.caller.kuser_id, tenant.id, 'admin')
# update the record
if site.id and site.tenant_id:
self.driver.update_tenant(site.tenant_id,
description=site.name,
enabled=site.enabled)
# commit the updated record
site.save()
site.enacted = timezone.now()
site.save(update_fields=['enacted']) # enusre enacted > updated
@require_enabled
def delete_site(self, site):
if site.tenant_id:
self.driver.delete_tenant(site.tenant_id)
@require_enabled
def save_site_privilege(self, site_priv):
if site_priv.user.kuser_id and site_priv.site.tenant_id:
self.driver.add_user_role(site_priv.user.kuser_id,
site_priv.site.tenant_id,
site_priv.role.role_type)
site_priv.enacted = timezone.now()
site_priv.save(update_fields=['enacted'])
@require_enabled
def delete_site_privilege(self, site_priv):
self.driver.delete_user_role(site_priv.user.kuser_id,
site_priv.site.tenant_id,
site_priv.role.role_type)
@require_enabled
def save_slice(self, slice):
if not slice.tenant_id:
nova_fields = {'tenant_name': slice.name,
'description': slice.description,
'enabled': slice.enabled}
tenant = self.driver.create_tenant(**nova_fields)
slice.tenant_id = tenant.id
# give caller an admin role at the tenant they've created
self.driver.add_user_role(self.caller.kuser_id, tenant.id, 'admin')
# refresh credentials using this tenant
self.driver.shell.connect(username=self.driver.shell.keystone.username,
password=self.driver.shell.keystone.password,
tenant=tenant.name)
# create network
network = self.driver.create_network(slice.name)
slice.network_id = network['id']
# create router
router = self.driver.create_router(slice.name)
slice.router_id = router['id']
# create subnet
next_subnet = self.get_next_subnet()
cidr = str(next_subnet.cidr)
ip_version = next_subnet.version
start = str(next_subnet[2])
end = str(next_subnet[-2])
subnet = self.driver.create_subnet(name=slice.name,
network_id = network['id'],
cidr_ip = cidr,
ip_version = ip_version,
start = start,
end = end)
slice.subnet_id = subnet['id']
# add subnet as interface to slice's router
self.driver.add_router_interface(router['id'], subnet['id'])
# add external route
self.driver.add_external_route(subnet)
if slice.id and slice.tenant_id:
self.driver.update_tenant(slice.tenant_id,
description=slice.description,
enabled=slice.enabled)
slice.save()
slice.enacted = timezone.now()
slice.save(update_fields=['enacted'])
@require_enabled
def delete_slice(self, slice):
if slice.tenant_id:
self._delete_slice(slice.tenant_id, slice.network_id,
slice.router_id, slice.subnet_id)
@require_enabled
def _delete_slice(self, tenant_id, network_id, router_id, subnet_id):
self.driver.delete_router_interface(slice.router_id, slice.subnet_id)
self.driver.delete_subnet(slice.subnet_id)
self.driver.delete_router(slice.router_id)
self.driver.delete_network(slice.network_id)
self.driver.delete_tenant(slice.tenant_id)
# delete external route
subnet = None
subnets = self.driver.shell.quantum.list_subnets()['subnets']
for snet in subnets:
if snet['id'] == slice.subnet_id:
subnet = snet
if subnet:
self.driver.delete_external_route(subnet)
@require_enabled
def save_slice_membership(self, slice_memb):
if slice_memb.user.kuser_id and slice_memb.slice.tenant_id:
self.driver.add_user_role(slice_memb.user.kuser_id,
slice_memb.slice.tenant_id,
slice_memb.role.role_type)
slice_memb.enacted = timezone.now()
slice_memb.save(update_fields=['enacted'])
@require_enabled
def delete_slice_membership(self, slice_memb):
self.driver.delete_user_role(slice_memb.user.kuser_id,
slice_memb.slice.tenant_id,
slice_memb.role.role_type)
@require_enabled
def get_next_subnet(self):
# limit ourself to 10.0.x.x for now
valid_subnet = lambda net: net.startswith('10.0')
subnets = self.driver.shell.quantum.list_subnets()['subnets']
ints = [int(IPNetwork(subnet['cidr']).ip) for subnet in subnets \
if valid_subnet(subnet['cidr'])]
ints.sort()
last_ip = IPAddress(ints[-1])
last_network = IPNetwork(str(last_ip) + "/24")
next_network = IPNetwork(str(IPAddress(last_network) + last_network.size) + "/24")
return next_network
@require_enabled
def save_subnet(self, subnet):
if not subnet.subnet_id:
quantum_subnet = self.driver.create_subnet(name= subnet.slice.name,
network_id=subnet.slice.network_id,
cidr_ip = subnet.cidr,
ip_version=subnet.ip_version,
start = subnet.start,
end = subnet.end)
subnet.subnet_id = quantum_subnet['id']
# add subnet as interface to slice's router
self.driver.add_router_interface(subnet.slice.router_id, subnet.subnet_id)
#add_route = 'route add -net %s dev br-ex gw 10.100.0.5' % self.cidr
#commands.getstatusoutput(add_route)
@require_enabled
def delete_subnet(self, subnet):
if subnet.subnet_id:
self.driver.delete_router_interface(subnet.slice.router_id, subnet.subnet_id)
self.driver.delete_subnet(subnet.subnet_id)
#del_route = 'route del -net %s' % self.cidr
#commands.getstatusoutput(del_route)
def get_requested_networks(self, slice):
network_ids = [x.network_id for x in slice.networks.all()]
if slice.network_id is not None:
network_ids.append(slice.network_id)
networks = []
for network_id in network_ids:
networks.append({"net-id": network_id})
return networks
@require_enabled
def save_instance(self, instance):
metadata_update = {}
if ("numberCores" in instance.changed_fields):
metadata_update["cpu_cores"] = str(instance.numberCores)
for tag in instance.slice.tags.all():
if tag.name.startswith("sysctl-"):
metadata_update[tag.name] = tag.value
if not instance.instance_id:
nics = self.get_requested_networks(instance.slice)
for nic in nics:
# If a network hasn't been instantiated yet, then we'll fail
# during slice creation. Defer saving the instance for now.
if not nic.get("net-id", None):
instance.save() # in case it hasn't been saved yet
return
slice_memberships = SliceMembership.objects.filter(slice=instance.slice)
pubkeys = [sm.user.public_key for sm in slice_memberships if sm.user.public_key]
pubkeys.append(instance.creator.public_key)
instance = self.driver.spawn_instance(name=instance.name,
key_name = instance.creator.keyname,
image_id = instance.image.image_id,
hostname = instance.node.name,
pubkeys = pubkeys,
nics = nics,
metadata = metadata_update )
instance.instance_id = instance.id
instance.instance_name = getattr(instance, 'OS-EXT-SRV-ATTR:instance_name')
else:
if metadata_update:
self.driver.update_instance_metadata(instance.instance_id, metadata_update)
instance.save()
instance.enacted = timezone.now()
instance.save(update_fields=['enacted'])
@require_enabled
def delete_instance(self, instance):
if instance.instance_id:
self.driver.destroy_instance(instance.instance_id)
def refresh_nodes(self):
# collect local nodes
nodes = Node.objects.all()
nodes_dict = {}
for node in nodes:
if 'viccidev10' not in node.name:
nodes_dict[node.name] = node
deployment = Deployment.objects.filter(name='VICCI')[0]
login_bases = ['princeton', 'stanford', 'gt', 'uw', 'mpisws']
sites = Site.objects.filter(login_base__in=login_bases)
# collect nova nodes:
compute_nodes = self.client.nova.hypervisors.list()
compute_nodes_dict = {}
for compute_node in compute_nodes:
compute_nodes_dict[compute_node.hypervisor_hostname] = compute_node
# add new nodes:
new_node_names = set(compute_nodes_dict.keys()).difference(nodes_dict.keys())
i = 0
max = len(sites)
for name in new_node_names:
if i == max:
i = 0
site = sites[i]
node = Node(name=compute_nodes_dict[name].hypervisor_hostname,
site=site,
deployment=deployment)
node.save()
i+=1
# remove old nodes
old_node_names = set(nodes_dict.keys()).difference(compute_nodes_dict.keys())
Node.objects.filter(name__in=old_node_names).delete()
def refresh_images(self):
from core.models.image import Image
# collect local images
images = Image.objects.all()
images_dict = {}
for image in images:
images_dict[image.name] = image
# collect glance images
glance_images = self.client.glance.get_images()
glance_images_dict = {}
for glance_image in glance_images:
glance_images_dict[glance_image['name']] = glance_image
# add new images
new_image_names = set(glance_images_dict.keys()).difference(images_dict.keys())
for name in new_image_names:
image = Image(image_id=glance_images_dict[name]['id'],
name=glance_images_dict[name]['name'],
disk_format=glance_images_dict[name]['disk_format'],
container_format=glance_images_dict[name]['container_format'])
image.save()
# remove old images
old_image_names = set(images_dict.keys()).difference(glance_images_dict.keys())
Image.objects.filter(name__in=old_image_names).delete()
@require_enabled
def save_network(self, network):
if not network.network_id:
if network.template.shared_network_name:
network.network_id = network.template.shared_network_id
(network.subnet_id, network.subnet) = self.driver.get_network_subnet(network.network_id)
else:
network_name = network.name
# create network
os_network = self.driver.create_network(network_name, shared=True)
network.network_id = os_network['id']
# create router
router = self.driver.create_router(network_name)
network.router_id = router['id']
# create subnet
next_subnet = self.get_next_subnet()
cidr = str(next_subnet.cidr)
ip_version = next_subnet.version
start = str(next_subnet[2])
end = str(next_subnet[-2])
subnet = self.driver.create_subnet(name=network_name,
network_id = network.network_id,
cidr_ip = cidr,
ip_version = ip_version,
start = start,
end = end)
network.subnet = cidr
network.subnet_id = subnet['id']
# add subnet as interface to slice's router
self.driver.add_router_interface(router['id'], subnet['id'])
# add external route
self.driver.add_external_route(subnet)
network.save()
network.enacted = timezone.now()
network.save(update_fields=['enacted'])
def delete_network(self, network):
if (network.router_id) and (network.subnet_id):
self.driver.delete_router_interface(network.router_id, network.subnet_id)
if network.subnet_id:
self.driver.delete_subnet(network.subnet_id)
if network.router_id:
self.driver.delete_router(network.router_id)
if network.network_id:
self.driver.delete_network(network.network_id)
def save_network_template(self, template):
if (template.shared_network_name) and (not template.shared_network_id):
os_networks = self.driver.shell.quantum.list_networks(name=template.shared_network_name)['networks']
if os_networks:
template.shared_network_id = os_networks[0]["id"]
template.save()
template.enacted = timezone.now()
template.save(update_fields=['enacted'])
def find_or_make_template_for_network(self, name):
""" Given a network name, try to guess the right template for it """
# templates for networks we may encounter
if name=='nat-net':
template_dict = None # {"name": "private-nat", "visibility": "private", "translation": "nat"}
elif name=='sharednet1':
template_dict = {"name": "dedicated-public", "visibility": "public", "translation": "none"}
else:
template_dict = {"name": "private", "visibility": "private", "translation": "none"}
# if we have an existing template return it
templates = NetworkTemplate.objects.filter(name=template_dict["name"])
if templates:
return templates[0]
if template_dict == None:
return None
template = NetworkTemplate(**template_dict)
template.save()
return template
def refresh_network_templates(self):
for template in NetworkTemplate.objects.all():
if (template.shared_network_name) and (not template.shared_network_id):
# this will cause us to try to fill in the shared_network_id
self.save_network_template(template)
def refresh_networks(self):
# get a list of all networks in the model
networks = Network.objects.all()
networks_by_name = {}
networks_by_id = {}
for network in networks:
networks_by_name[network.name] = network
networks_by_id[network.network_id] = network
# Get a list of all shared networks in OS
os_networks = self.driver.shell.quantum.list_networks()['networks']
os_networks_by_name = {}
os_networks_by_id = {}
for os_network in os_networks:
os_networks_by_name[os_network['name']] = os_network
os_networks_by_id[os_network['id']] = os_network
for (uuid, os_network) in os_networks_by_id.items():
#print "checking OS network", os_network['name']
if (os_network['shared']) and (uuid not in networks_by_id):
# Only automatically create shared networks. This is for Andy's
# nat-net and sharednet1.
owner_slice = Slice.objects.get(tenant_id = os_network['tenant_id'])
template = self.find_or_make_template_for_network(os_network['name'])
if (template is None):
# This is our way of saying we don't want to auto-instantiate
# this network type.
continue
(subnet_id, subnet) = self.driver.get_network_subnet(os_network['id'])
if owner_slice:
#print "creating model object for OS network", os_network['name']
new_network = Network(name = os_network['name'],
template = template,
owner = owner_slice,
network_id = uuid,
subnet_id = subnet_id)
new_network.save()
for (network_id, network) in networks_by_id.items():
# If the network disappeared from OS, then reset its network_id to None
if (network.network_id is not None) and (network.network_id not in os_networks_by_id):
network.network_id = None
# If no OS object exists, then saving the network will create one
if (network.network_id is None):
#print "creating OS network for", network.name
self.save_network(network)
else:
pass #print "network", network.name, "has its OS object"
class OpenStackManager:
def __init__(self, auth={}, caller=None):
self.client = None
self.driver = None
self.caller = None
self.has_openstack = has_openstack
self.enabled = manager_enabled
if has_openstack and manager_enabled:
if auth:
try:
self.init_user(auth, caller)
except:
# if this fails then it meanse the caller doesn't have a
# role at the slice's tenant. if the caller is an admin
# just use the admin client/manager.
if caller and caller.is_admin:
self.init_admin()
else:
raise
else:
self.init_admin()
@require_enabled
def init_caller(self, caller, tenant):
auth = {
'username': caller.email,
'password': hashlib.md5(caller.password).hexdigest()[:6],
'tenant': tenant
}
self.client = OpenStackClient(**auth)
self.driver = OpenStackDriver(client=self.client)
self.caller = caller
@require_enabled
def init_admin(self, tenant=None):
# use the admin credentials
self.client = OpenStackClient(tenant=tenant)
self.driver = OpenStackDriver(client=self.client)
self.caller = self.driver.admin_user
self.caller.kuser_id = self.caller.id
@require_enabled
def save_role(self, role):
if not role.role:
keystone_role = self.driver.create_role(role.role_type)
role.role = keystone_role.id
@require_enabled
def delete_role(self, role):
if role.role:
self.driver.delete_role({'id': role.role})
@require_enabled
def save_key(self, key, name):
key_fields = {'name': name, 'public_key': key}
nova_key = self.driver.create_keypair(**key_fields)
@require_enabled
def delete_key(self, key):
if key.nkey_id:
self.driver.delete_keypair(key.nkey_id)
@require_enabled
def save_user(self, user):
name = user.email[:user.email.find('@')]
user_fields = {
'name': name,
'email': user.email,
'password': hashlib.md5(user.password).hexdigest()[:6],
'enabled': True
}
if not user.kuser_id:
keystone_user = self.driver.create_user(**user_fields)
user.kuser_id = keystone_user.id
else:
self.driver.update_user(user.kuser_id, user_fields)
if user.site:
self.driver.add_user_role(user.kuser_id, user.site.tenant_id,
'user')
if user.is_admin:
self.driver.add_user_role(user.kuser_id, user.site.tenant_id,
'admin')
else:
# may have admin role so attempt to remove it
self.driver.delete_user_role(user.kuser_id,
user.site.tenant_id, 'admin')
if user.public_key:
self.init_caller(user, user.site.login_base)
self.save_key(user.public_key, user.keyname)
self.init_admin()
user.save()
user.enacted = datetime.now()
user.save(update_fields=['enacted'])
@require_enabled
def delete_user(self, user):
if user.kuser_id:
self.driver.delete_user(user.kuser_id)
@require_enabled
def save_site(self, site, add_role=True):
if not site.tenant_id:
tenant = self.driver.create_tenant(tenant_name=site.login_base,
description=site.name,
enabled=site.enabled)
site.tenant_id = tenant.id
# give caller an admin role at the tenant they've created
self.driver.add_user_role(self.caller.kuser_id, tenant.id, 'admin')
# update the record
if site.id and site.tenant_id:
self.driver.update_tenant(site.tenant_id,
description=site.name,
enabled=site.enabled)
# commit the updated record
site.save()
site.enacted = datetime.now()
site.save(update_fields=['enacted']) # enusre enacted > updated
@require_enabled
def delete_site(self, site):
if site.tenant_id:
self.driver.delete_tenant(site.tenant_id)
@require_enabled
def save_site_privilege(self, site_priv):
if site_priv.user.kuser_id and site_priv.site.tenant_id:
self.driver.add_user_role(site_priv.user.kuser_id,
site_priv.site.tenant_id,
site_priv.role.role_type)
site_priv.enacted = datetime.now()
site_priv.save(update_fields=['enacted'])
@require_enabled
def delete_site_privilege(self, site_priv):
self.driver.delete_user_role(site_priv.user.kuser_id,
site_priv.site.tenant_id,
site_priv.role.role_type)
@require_enabled
def save_slice(self, slice):
if not slice.tenant_id:
nova_fields = {
'tenant_name': slice.name,
'description': slice.description,
'enabled': slice.enabled
}
tenant = self.driver.create_tenant(**nova_fields)
slice.tenant_id = tenant.id
# give caller an admin role at the tenant they've created
self.driver.add_user_role(self.caller.kuser_id, tenant.id, 'admin')
# refresh credentials using this tenant
self.driver.shell.connect(
username=self.driver.shell.keystone.username,
password=self.driver.shell.keystone.password,
tenant=tenant.name)
# create network
network = self.driver.create_network(slice.name)
slice.network_id = network['id']
# create router
router = self.driver.create_router(slice.name)
slice.router_id = router['id']
# create subnet
next_subnet = self.get_next_subnet()
cidr = str(next_subnet.cidr)
ip_version = next_subnet.version
start = str(next_subnet[2])
end = str(next_subnet[-2])
subnet = self.driver.create_subnet(name=slice.name,
network_id=network['id'],
cidr_ip=cidr,
ip_version=ip_version,
start=start,
end=end)
slice.subnet_id = subnet['id']
# add subnet as interface to slice's router
self.driver.add_router_interface(router['id'], subnet['id'])
# add external route
self.driver.add_external_route(subnet)
if slice.id and slice.tenant_id:
self.driver.update_tenant(slice.tenant_id,
description=slice.description,
enabled=slice.enabled)
slice.save()
slice.enacted = datetime.now()
slice.save(update_fields=['enacted'])
@require_enabled
def delete_slice(self, slice):
if slice.tenant_id:
self._delete_slice(slice.tenant_id, slice.network_id,
slice.router_id, slice.subnet_id)
@require_enabled
def _delete_slice(self, tenant_id, network_id, router_id, subnet_id):
self.driver.delete_router_interface(slice.router_id, slice.subnet_id)
self.driver.delete_subnet(slice.subnet_id)
self.driver.delete_router(slice.router_id)
self.driver.delete_network(slice.network_id)
self.driver.delete_tenant(slice.tenant_id)
# delete external route
subnet = None
subnets = self.driver.shell.quantum.list_subnets()['subnets']
for snet in subnets:
if snet['id'] == slice.subnet_id:
subnet = snet
if subnet:
self.driver.delete_external_route(subnet)
@require_enabled
def save_slice_membership(self, slice_memb):
if slice_memb.user.kuser_id and slice_memb.slice.tenant_id:
self.driver.add_user_role(slice_memb.user.kuser_id,
slice_memb.slice.tenant_id,
slice_memb.role.role_type)
slice_memb.enacted = datetime.now()
slice_memb.save(update_fields=['enacted'])
@require_enabled
def delete_slice_membership(self, slice_memb):
self.driver.delete_user_role(slice_memb.user.kuser_id,
slice_memb.slice.tenant_id,
slice_memb.role.role_type)
@require_enabled
def get_next_subnet(self):
# limit ourself to 10.0.x.x for now
valid_subnet = lambda net: net.startswith('10.0')
subnets = self.driver.shell.quantum.list_subnets()['subnets']
ints = [int(IPNetwork(subnet['cidr']).ip) for subnet in subnets \
if valid_subnet(subnet['cidr'])]
ints.sort()
last_ip = IPAddress(ints[-1])
last_network = IPNetwork(str(last_ip) + "/24")
next_network = IPNetwork(
str(IPAddress(last_network) + last_network.size) + "/24")
return next_network
@require_enabled
def save_subnet(self, subnet):
if not subnet.subnet_id:
quantum_subnet = self.driver.create_subnet(
name=subnet.slice.name,
network_id=subnet.slice.network_id,
cidr_ip=subnet.cidr,
ip_version=subnet.ip_version,
start=subnet.start,
end=subnet.end)
subnet.subnet_id = quantum_subnet['id']
# add subnet as interface to slice's router
self.driver.add_router_interface(subnet.slice.router_id,
subnet.subnet_id)
#add_route = 'route add -net %s dev br-ex gw 10.100.0.5' % self.cidr
#commands.getstatusoutput(add_route)
@require_enabled
def delete_subnet(self, subnet):
if subnet.subnet_id:
self.driver.delete_router_interface(subnet.slice.router_id,
subnet.subnet_id)
self.driver.delete_subnet(subnet.subnet_id)
#del_route = 'route del -net %s' % self.cidr
#commands.getstatusoutput(del_route)
def get_requested_networks(self, slice):
network_ids = [x.network_id for x in slice.networks.all()]
if slice.network_id is not None:
network_ids.append(slice.network_id)
networks = []
for network_id in network_ids:
networks.append({"net-id": network_id})
return networks
@require_enabled
def save_instance(self, instance):
metadata_update = {}
if ("numberCores" in instance.changed_fields):
metadata_update["cpu_cores"] = str(instance.numberCores)
for tag in instance.slice.tags.all():
if tag.name.startswith("sysctl-"):
metadata_update[tag.name] = tag.value
if not instance.instance_id:
nics = self.get_requested_networks(instance.slice)
for nic in nics:
# If a network hasn't been instantiated yet, then we'll fail
# during slice creation. Defer saving the instance for now.
if not nic.get("net-id", None):
instance.save() # in case it hasn't been saved yet
return
slice_memberships = SliceMembership.objects.filter(
slice=instance.slice)
pubkeys = [
sm.user.public_key for sm in slice_memberships
if sm.user.public_key
]
pubkeys.append(instance.creator.public_key)
instance = self.driver.spawn_instance(
name=instance.name,
key_name=instance.creator.keyname,
image_id=instance.image.image_id,
hostname=instance.node.name,
pubkeys=pubkeys,
nics=nics,
metadata=metadata_update)
instance.instance_id = instance.id
instance.instance_name = getattr(instance,
'OS-EXT-SRV-ATTR:instance_name')
else:
if metadata_update:
self.driver.update_instance_metadata(instance.instance_id,
metadata_update)
instance.save()
instance.enacted = datetime.now()
instance.save(update_fields=['enacted'])
@require_enabled
def delete_instance(self, instance):
if instance.instance_id:
self.driver.destroy_instance(instance.instance_id)
def refresh_nodes(self):
# collect local nodes
nodes = Node.objects.all()
nodes_dict = {}
for node in nodes:
if 'viccidev10' not in node.name:
nodes_dict[node.name] = node
deployment = Deployment.objects.filter(name='VICCI')[0]
login_bases = ['princeton', 'stanford', 'gt', 'uw', 'mpisws']
sites = Site.objects.filter(login_base__in=login_bases)
# collect nova nodes:
compute_nodes = self.client.nova.hypervisors.list()
compute_nodes_dict = {}
for compute_node in compute_nodes:
compute_nodes_dict[compute_node.hypervisor_hostname] = compute_node
# add new nodes:
new_node_names = set(compute_nodes_dict.keys()).difference(
nodes_dict.keys())
i = 0
max = len(sites)
for name in new_node_names:
if i == max:
i = 0
site = sites[i]
node = Node(name=compute_nodes_dict[name].hypervisor_hostname,
site=site,
deployment=deployment)
node.save()
i += 1
# remove old nodes
old_node_names = set(nodes_dict.keys()).difference(
compute_nodes_dict.keys())
Node.objects.filter(name__in=old_node_names).delete()
def refresh_images(self):
from core.models.image import Image
# collect local images
images = Image.objects.all()
images_dict = {}
for image in images:
images_dict[image.name] = image
# collect glance images
glance_images = self.client.glance.get_images()
glance_images_dict = {}
for glance_image in glance_images:
glance_images_dict[glance_image['name']] = glance_image
# add new images
new_image_names = set(glance_images_dict.keys()).difference(
images_dict.keys())
for name in new_image_names:
image = Image(
image_id=glance_images_dict[name]['id'],
name=glance_images_dict[name]['name'],
disk_format=glance_images_dict[name]['disk_format'],
container_format=glance_images_dict[name]['container_format'])
image.save()
# remove old images
old_image_names = set(images_dict.keys()).difference(
glance_images_dict.keys())
Image.objects.filter(name__in=old_image_names).delete()
@require_enabled
def save_network(self, network):
if not network.network_id:
if network.template.shared_network_name:
network.network_id = network.template.shared_network_id
(network.subnet_id,
network.subnet) = self.driver.get_network_subnet(
network.network_id)
else:
network_name = network.name
# create network
os_network = self.driver.create_network(network_name,
shared=True)
network.network_id = os_network['id']
# create router
router = self.driver.create_router(network_name)
network.router_id = router['id']
# create subnet
next_subnet = self.get_next_subnet()
cidr = str(next_subnet.cidr)
ip_version = next_subnet.version
start = str(next_subnet[2])
end = str(next_subnet[-2])
subnet = self.driver.create_subnet(
name=network_name,
network_id=network.network_id,
cidr_ip=cidr,
ip_version=ip_version,
start=start,
end=end)
network.subnet = cidr
network.subnet_id = subnet['id']
# add subnet as interface to slice's router
self.driver.add_router_interface(router['id'], subnet['id'])
# add external route
self.driver.add_external_route(subnet)
network.save()
network.enacted = datetime.now()
network.save(update_fields=['enacted'])
def delete_network(self, network):
if (network.router_id) and (network.subnet_id):
self.driver.delete_router_interface(network.router_id,
network.subnet_id)
if network.subnet_id:
self.driver.delete_subnet(network.subnet_id)
if network.router_id:
self.driver.delete_router(network.router_id)
if network.network_id:
self.driver.delete_network(network.network_id)
def save_network_template(self, template):
if (template.shared_network_name) and (not template.shared_network_id):
os_networks = self.driver.shell.quantum.list_networks(
name=template.shared_network_name)['networks']
if os_networks:
template.shared_network_id = os_networks[0]["id"]
template.save()
template.enacted = datetime.now()
template.save(update_fields=['enacted'])
def find_or_make_template_for_network(self, name):
""" Given a network name, try to guess the right template for it """
# templates for networks we may encounter
if name == 'nat-net':
template_dict = None # {"name": "private-nat", "visibility": "private", "translation": "nat"}
elif name == 'sharednet1':
template_dict = {
"name": "dedicated-public",
"visibility": "public",
"translation": "none"
}
else:
template_dict = {
"name": "private",
"visibility": "private",
"translation": "none"
}
# if we have an existing template return it
templates = NetworkTemplate.objects.filter(name=template_dict["name"])
if templates:
return templates[0]
if template_dict == None:
return None
template = NetworkTemplate(**template_dict)
template.save()
return template
def refresh_network_templates(self):
for template in NetworkTemplate.objects.all():
if (template.shared_network_name) and (
not template.shared_network_id):
# this will cause us to try to fill in the shared_network_id
self.save_network_template(template)
def refresh_networks(self):
# get a list of all networks in the model
networks = Network.objects.all()
networks_by_name = {}
networks_by_id = {}
for network in networks:
networks_by_name[network.name] = network
networks_by_id[network.network_id] = network
# Get a list of all shared networks in OS
os_networks = self.driver.shell.quantum.list_networks()['networks']
os_networks_by_name = {}
os_networks_by_id = {}
for os_network in os_networks:
os_networks_by_name[os_network['name']] = os_network
os_networks_by_id[os_network['id']] = os_network
for (uuid, os_network) in os_networks_by_id.items():
#print "checking OS network", os_network['name']
if (os_network['shared']) and (uuid not in networks_by_id):
# Only automatically create shared networks. This is for Andy's
# nat-net and sharednet1.
owner_slice = Slice.objects.get(
tenant_id=os_network['tenant_id'])
template = self.find_or_make_template_for_network(
os_network['name'])
if (template is None):
# This is our way of saying we don't want to auto-instantiate
# this network type.
continue
(subnet_id,
subnet) = self.driver.get_network_subnet(os_network['id'])
if owner_slice:
#print "creating model object for OS network", os_network['name']
new_network = Network(name=os_network['name'],
template=template,
owner=owner_slice,
network_id=uuid,
subnet_id=subnet_id)
new_network.save()
for (network_id, network) in networks_by_id.items():
# If the network disappeared from OS, then reset its network_id to None
if (network.network_id is not None) and (network.network_id
not in os_networks_by_id):
network.network_id = None
# If no OS object exists, then saving the network will create one
if (network.network_id is None):
#print "creating OS network for", network.name
self.save_network(network)
else:
pass #print "network", network.name, "has its OS object"