diff --git a/planetstack/openstack/__init__.py b/planetstack/openstack/__init__.py
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/planetstack/openstack/__init__.py
diff --git a/planetstack/openstack/client.py b/planetstack/openstack/client.py
new file mode 100644
index 0000000..f3abbb2
--- /dev/null
+++ b/planetstack/openstack/client.py
@@ -0,0 +1,148 @@
+try:
+    from keystoneclient.v2_0 import client as keystone_client
+    from glance import client as glance_client
+    from novaclient.v1_1 import client as nova_client
+    from quantumclient.v2_0 import client as quantum_client
+    has_openstack = True
+except:
+    has_openstack = False
+
+from planetstack.config import Config
+
+def require_enabled(callable):
+    def wrapper(*args, **kwds):
+        if has_openstack:
+            return callable(*args, **kwds)
+        else:
+            return None
+    return wrapper
+
+def parse_novarc(filename):
+    opts = {}
+    f = open(filename, 'r')
+    for line in f:
+        try:
+            line = line.replace('export', '').strip()
+            parts = line.split('=')
+            if len(parts) > 1:
+                value = parts[1].replace("\'", "")
+                value = value.replace('\"', '')
+                opts[parts[0]] = value
+        except:
+            pass
+    f.close()
+    return opts
+
+class Client:
+    def __init__(self, username=None, password=None, tenant=None, url=None, config=None, *args, **kwds):
+        if config:
+            config = Config(config)
+        else:
+            config = Config()
+        self.has_openstack = has_openstack
+        self.username = config.nova_admin_user
+        self.password = config.nova_admin_password
+        self.tenant = config.nova_admin_tenant
+        self.url = config.nova_url
+
+        if username:
+            self.username = username
+        if password:
+            self.password = password
+        if tenant:
+            self.tenant = tenant
+        if url:
+            self.url = url
+
+        if '@' in self.username:
+            self.username = self.username[:self.username.index('@')]
+
+class KeystoneClient(Client):
+    def __init__(self, *args, **kwds):
+        Client.__init__(self, *args, **kwds)
+        if has_openstack:
+            self.client = keystone_client.Client(username=self.username,
+                                                 password=self.password,
+                                                 tenant_name=self.tenant,
+                                                 auth_url=self.url)
+
+    @require_enabled
+    def connect(self, *args, **kwds):
+        self.__init__(*args, **kwds)
+
+    @require_enabled
+    def __getattr__(self, name):
+        return getattr(self.client, name)
+
+
+class GlanceClient(Client):
+    def __init__(self, *args, **kwds):
+        Client.__init__(self, *args, **kwds)
+        if has_openstack:
+            self.client = glance_client.get_client(host='0.0.0.0',
+                                                   username=self.username,
+                                                   password=self.password,
+                                                   tenant=self.tenant,
+                                                   auth_url=self.url)
+    @require_enabled
+    def __getattr__(self, name):
+        return getattr(self.client, name)
+
+class NovaClient(Client):
+    def __init__(self, *args, **kwds):
+        Client.__init__(self, *args, **kwds)
+        if has_openstack:
+            self.client = nova_client.Client(username=self.username,
+                                             api_key=self.password,
+                                             project_id=self.tenant,
+                                             auth_url=self.url,
+                                             region_name='',
+                                             extensions=[],
+                                             service_type='compute',
+                                             service_name='',
+                                             )
+
+    @require_enabled
+    def connect(self, *args, **kwds):
+        self.__init__(*args, **kwds)
+
+    @require_enabled
+    def __getattr__(self, name):
+        return getattr(self.client, name)
+
+class QuantumClient(Client):
+    def __init__(self, *args, **kwds):
+        Client.__init__(self, *args, **kwds)
+        if has_openstack:
+            self.client = quantum_client.Client(username=self.username,
+                                                password=self.password,
+                                                tenant_name=self.tenant,
+                                                auth_url=self.url)
+    @require_enabled
+    def connect(self, *args, **kwds):
+        self.__init__(*args, **kwds)
+
+    @require_enabled
+    def __getattr__(self, name):
+        return getattr(self.client, name)
+
+class OpenStackClient:
+    """
+    A simple native shell to the openstack backend services.
+    This class can receive all nova calls to the underlying testbed
+    """
+
+    def __init__ ( self, *args, **kwds) :
+        # instantiate managers
+        self.keystone = KeystoneClient(*args, **kwds)
+        self.glance = GlanceClient(*args, **kwds)
+        self.nova = NovaClient(*args, **kwds)
+        self.quantum = QuantumClient(*args, **kwds)
+
+    @require_enabled
+    def connect(self, *args, **kwds):
+        self.__init__(*args, **kwds)
+
+    @require_enabled
+    def authenticate(self):
+        return self.keystone.authenticate()
diff --git a/planetstack/openstack/driver.py b/planetstack/openstack/driver.py
new file mode 100644
index 0000000..6b04b5d
--- /dev/null
+++ b/planetstack/openstack/driver.py
@@ -0,0 +1,285 @@
+from planetstack.config import Config
+from openstack.client import OpenStackClient
+
+has_openstack = False
+class OpenStackDriver:
+
+    def __init__(self, config = None, client=None): 
+        if config:
+            self.config = Config(config)
+        else:
+            self.config = Config() 
+
+        self.admin_client = OpenStackClient()
+        if has_openstack:
+            self.admin_user = self.admin_client.keystone.users.find(name=self.admin_client.keystone.username)
+        else:
+            self.admin_user = None
+
+        if client:
+            self.shell = client
+        else:
+            self.shell = OpenStackClient()
+
+    def create_role(self, name): 
+        roles = self.shell.keystone.roles.findall(name=name)
+        if not roles:
+            role = self.shell.keystone.roles.create(name)
+        else:
+            role = roles[0] 
+        return role
+
+    def delete_role(self, filter):
+        roles = self.shell.keystone.roles.findall(**filter)
+        for role in roles:
+            self.shell.keystone.roles.delete(role)
+        return 1
+
+    def create_tenant(self, tenant_name, enabled, description):
+        """Create keystone tenant. Suggested fields: name, description, enabled"""  
+        tenants = self.shell.keystone.tenants.findall(name=tenant_name)
+        if not tenants:
+            fields = {'tenant_name': tenant_name, 'enabled': enabled, 
+                      'description': description}  
+            tenant = self.shell.keystone.tenants.create(**fields)
+        else:
+            tenant = tenants[0]
+
+        # always give the admin user the admin role to any tenant created 
+        # by the driver. 
+        self.add_user_role(self.admin_user.id, tenant.id, 'admin')
+        return tenant
+
+    def update_tenant(self, id, **kwds):
+        return self.shell.keystone.tenants.update(id, **kwds)
+
+    def delete_tenant(self, id):
+        tenants = self.shell.keystone.tenants.findall(id=id)
+        for tenant in tenants:
+            self.shell.keystone.tenants.delete(tenant)
+        return 1
+
+    def create_user(self, name, email, password, enabled):
+        users = self.shell.keystone.users.findall(email=email)
+        if not users:
+            fields = {'name': name, 'email': email, 'password': password,
+                      'enabled': enabled}
+            user = self.shell.keystone.users.create(**fields)
+        else: 
+            user = users[0]
+        return user
+
+    def delete_user(self, id):
+        users = self.shell.keystone.users.findall(id=id)
+        for user in users:
+            self.shell.keystone.users.delete(user)
+        return 1 
+
+    def add_user_role(self, kuser_id, tenant_id, role_name):
+        user = self.shell.keystone.users.find(id=kuser_id)
+        tenant = self.shell.keystone.tenants.find(id=tenant_id)
+        role = self.shell.keystone.roles.find(name=role_name)
+
+        role_found = False
+        user_roles = user.list_roles(tenant.id)
+        for user_role in user_roles:
+            if user_role.name == role.name:
+                role_found = True
+        if not role_found:
+            tenant.add_user(user, role)
+
+        return 1
+
+    def delete_user_role(self, kuser_id, tenant_id, role_name):
+        user = self.shell.keystone.users.find(id=kuser_id)
+        tenant = self.shell.keystone.tenants.find(id=tenant_id)
+        role = self.shell.keystone.roles.find(name=role_name)
+
+        role_found = False
+        user_roles = user.list_roles(tenant.id)
+        for user_role in user_roles:
+            if user_role.name == role.name:
+                role_found = True
+        if role_found:
+            tenant.remove_user(user, role)
+
+        return 1 
+
+    def update_user(self, id, **kwds):
+        return self.shell.keystone.users.update(id, **kwds)
+
+    def create_router(self, name, set_gateway=True):
+        routers = self.shell.quantum.list_routers(name=name)['routers']
+        if routers:
+            router = routers[0]
+        else:
+            router = self.shell.quantum.create_router({'router': {'name': name}})['router']
+        # add router to external network
+        if set_gateway:
+            nets = self.shell.quantum.list_networks()['networks']
+            for net in nets:
+                if net['router:external'] == True: 
+                    self.shell.quantum.add_gateway_router(router['id'],
+                                                          {'network_id': net['id']})
+        
+        return router
+
+    def delete_router(self, id):
+        routers = self.shell.quantum.list_routers(id=id)['routers']
+        for router in routers:
+            self.shell.quantum.delete_router(router['id'])
+            # remove router form external network
+            #nets = self.shell.quantum.list_networks()['networks']
+            #for net in nets:
+            #    if net['router:external'] == True:
+            #        self.shell.quantum.remove_gateway_router(router['id'])
+
+    def add_router_interface(self, router_id, subnet_id):
+        router = self.shell.quantum.show_router(router_id)['router']
+        subnet = self.shell.quantum.show_subnet(subnet_id)['subnet']
+        if router and subnet:
+            self.shell.quantum.add_interface_router(router_id, {'subnet_id': subnet_id})
+
+    def delete_router_interface(self, router_id, subnet_id):
+        router = self.shell.quantum.show_router(router_id)
+        subnet = self.shell.quantum.show_subnet(subnet_id)
+        if router and subnet:
+            self.shell.quantum.remove_interface_router(router_id, {'subnet_id': subnet_id})
+ 
+    def create_network(self, name):
+        nets = self.shell.quantum.list_networks(name=name)['networks']
+        if nets: 
+            net = nets[0]
+        else:
+            net = self.shell.quantum.create_network({'network': {'name': name}})['network']
+        return net
+ 
+    def delete_network(self, id):
+        nets = self.shell.quantum.list_networks()['networks']
+        for net in nets:
+            if net['id'] == id:
+                # delete_all ports
+                self.delete_network_ports(net['id'])
+                # delete all subnets:
+                for subnet_id in net['subnets']:
+                    self.delete_subnet(subnet_id)
+                self.shell.quantum.delete_network(net['id'])
+        return 1
+
+    def delete_network_ports(self, network_id):
+        ports = self.shell.quantum.list_ports()['ports']
+        for port in ports:
+            if port['network_id'] == network_id:
+                self.shell.quantum.delete_port(port['id'])
+        return 1         
+
+    def delete_subnet_ports(self, subnet_id):
+        ports = self.shell.quantum.list_ports()['ports']
+        for port in ports:
+            delete = False
+            for fixed_ip in port['fixed_ips']:
+                if fixed_ip['subnet_id'] == subnet_id:
+                    delete=True
+                    break
+            if delete:
+                self.shell.quantum.delete_port(port['id'])
+        return 1
+ 
+    def create_subnet(self, name, network_id, cidr_ip, ip_version, start, end):
+        #nets = self.shell.quantum.list_networks(name=network_name)['networks']
+        #if not nets:
+        #    raise Exception, "No such network: %s" % network_name   
+        #net = nets[0]
+
+        subnet = None 
+        subnets = self.shell.quantum.list_subnets()['subnets']
+        for snet in subnets:
+            if snet['cidr'] == cidr_ip and snet['network_id'] == network_id:
+                subnet = snet
+ 
+        if not subnet:
+            allocation_pools = [{'start': start, 'end': end}]
+            subnet = {'subnet': {'name': name,
+                                 'network_id': network_id,
+                                 'ip_version': ip_version,
+                                 'cidr': cidr_ip,
+                                 'dns_nameservers': ['8.8.8.8', '8.8.4.4'],
+                                 'allocation_pools': allocation_pools}}          
+            subnet = self.shell.quantum.create_subnet(subnet)['subnet']
+
+        # TODO: Add route to external network
+        # e.g. #  route add -net 10.0.3.0/24 dev br-ex gw 10.100.0.5 
+        return subnet
+
+    def update_subnet(self, id, fields):
+        return self.shell.quantum.update_subnet(id, fields)
+
+    def delete_subnet(self, id):
+        #return self.shell.quantum.delete_subnet(id=id)
+        # inefficient but fault tolerant
+        subnets = self.shell.quantum.list_subnets()['subnets']
+        for subnet in subnets:
+            if subnet['id'] == id:
+                self.delete_subnet_ports(subnet['id'])
+                self.shell.quantum.delete_subnet(id)
+        return
+    
+    def create_keypair(self, name, key):
+        keys = self.shell.nova.keypairs.findall(name=name)
+        if keys:
+            key = keys[0]
+        else:
+            key = self.shell.nova.keypairs.create(name=name, public_key=key)
+        return key
+
+    def delete_keypair(self, id):
+        keys = self.shell.nova.keypairs.findall(id=id)
+        for key in keys:
+            self.shell.nova.keypairs.delete(key) 
+        return 1 
+
+    def spawn_instance(self, name, key_name=None, hostname=None, image_id=None, security_group=None, pubkeys=[]):
+        flavor_name = self.config.nova_default_flavor
+        flavor = self.shell.nova.flavors.find(name=flavor_name)
+        #if not image:
+        #    image = self.config.nova_default_imave
+        if not security_group:
+            security_group = self.config.nova_default_security_group 
+
+        #authorized_keys = "\n".join(pubkeys)
+        #files = {'/root/.ssh/authorized_keys': authorized_keys}
+        files = {}
+       
+        hints = {}
+        availability_zone = None
+        if hostname:
+            availability_zone = 'nova:%s' % hostname
+        server = self.shell.nova.servers.create(
+                                            name=name,
+                                            key_name = key_name,
+                                            flavor=flavor.id,
+                                            image=image_id,
+                                            security_group = security_group,
+                                            files=files,
+                                            scheduler_hints=hints,
+                                            availability_zone=availability_zone)
+        return server
+          
+    def destroy_instance(self, id):
+        servers = self.shell.nova.servers.findall(id=id)
+        for server in servers:
+            self.shell.nova.servers.delete(server)
+
+    def update_instance_metadata(self, id, metadata):
+        servers = self.shell.nova.servers.findall(id=id)
+        for server in servers:
+            self.shell.nova.servers.set_meta(server, metadata)
+            # note: set_meta() returns a broken Server() object. Don't try to
+            # print it in the shell or it will fail in __repr__.
+
+    def delete_instance_metadata(self, id, metadata):
+        # note: metadata is a dict. Only the keys matter, not the values.
+        servers = self.shell.nova.servers.findall(id=id)
+        for server in servers:
+            self.shell.nova.servers.delete_meta(server, metadata)
+
diff --git a/planetstack/openstack/manager.py b/planetstack/openstack/manager.py
new file mode 100644
index 0000000..788a621
--- /dev/null
+++ b/planetstack/openstack/manager.py
@@ -0,0 +1,245 @@
+from planetstack import settings
+#from django.core import management
+#management.setup_environ(settings)
+import os
+os.environ.setdefault("DJANGO_SETTINGS_MODULE", "planetstack.settings")
+
+try:
+    from openstack.client import OpenStackClient
+    from openstack.driver import OpenStackDriver
+    from planetstack.config import Config
+    from core.models import * 
+    has_openstack = True
+except:
+    has_openstack = False
+
+#manager_enabled = Config().api_nova_enabled
+manager_enabled = False
+
+def require_enabled(callable):
+    def wrapper(*args, **kwds):
+        if manager_enabled and has_openstack:
+            return callable(*args, **kwds)
+        else:
+            return None
+    return wrapper
+
+
+class OpenStackManager:
+
+    def __init__(self, auth={}, caller=None):
+        if auth:
+            self.client = OpenStackClient(**auth)
+        else:
+            self.client = OpenStackClient()   
+        self.has_openstack = has_openstack       
+        self.enabled = manager_enabled 
+        self.driver = OpenStackDriver(client=self.client) 
+        self.caller=caller
+        if not self.caller:
+            self.caller = self.driver.admin_user
+            self.caller.kuser_id = self.caller.id 
+
+    @require_enabled
+    def save_role(self, role):
+        if not role.role_id:
+            keystone_role = self.driver.create_role(role.role_type)
+            role.role_id = keystone_role.id
+
+    @require_enabled
+    def delete_role(self, role):
+        if role.role_id:
+            self.driver.delete_role({'id': role.role_id})
+
+    @require_enabled
+    def save_key(self, key):
+        if not key.key_id:
+            key_fields = {'name': key.name,
+                          'key': key.key}
+            nova_key = self.driver.create_keypair(**key_fields)
+            key.key_id = nova_key.id        
+
+    @require_enabled
+    def delete_key(self, key):
+        if key.key_id:
+            self.driver.delete_keypair(key.key_id)
+
+    @require_enabled
+    def save_user(self, user):
+        if not user.kuser_id:
+            name = user.email[:user.email.find('@')]
+            user_fields = {'name': name,
+                           'email': user.email,
+                           'password': user.password,
+                           'enabled': True}
+            keystone_user = self.driver.create_user(**user_fields)
+            user.kuser_id = keystone_user.id
+    
+    @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)
+
+    @require_enabled
+    def delete_site(self, site):
+        if site.tenant_id:
+            self.driver.delete_tenant(site.tenant_id)
+               
+    @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']
+
+        if slice.id and slice.tenant_id:
+            self.driver.update_tenant(slice.tenant_id,
+                                      description=slice.description,
+                                      enabled=slice.enabled)    
+
+    @require_enabled
+    def delete_slice(self, slice):
+        if slice.tenant_id:
+            self.driver.delete_router(slice.router_id)
+            self.driver.delete_network(slice.network_id)
+            self.driver.delete_tenant(slice.tenant_id)
+
+    @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)
+    
+    @require_enabled
+    def save_sliver(self, sliver):
+        if not sliver.instance_id:
+            instance = self.driver.spawn_instance(name=sliver.name,
+                                   key_name = sliver.key.name,
+                                   image_id = sliver.image.image_id,
+                                   hostname = sliver.node.name )
+            sliver.instance_id = instance.id
+            sliver.instance_name = getattr(instance, 'OS-EXT-SRV-ATTR:instance_name')
+
+    @require_enabled
+    def delete_sliver(self, sliver):
+        if sliver.instance_id:
+            self.driver.destroy_instance(sliver.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 = DeploymentNetwork.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,
+                        deploymentNetwork=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):
+        # 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()
+
+
diff --git a/planetstack/openstack/siteagent.py b/planetstack/openstack/siteagent.py
new file mode 100644
index 0000000..a57fa0b
--- /dev/null
+++ b/planetstack/openstack/siteagent.py
@@ -0,0 +1,22 @@
+import os
+import sys
+#os.environ.setdefault("DJANGO_SETTINGS_MODULE", "planetstack.settings")
+import time
+from core.models.site import Site
+from openstack.manager import OpenStackManager    
+
+class SiteAgent:
+    def run(self):
+        manager = OpenStackManager()
+        # exit if openstack is disable or unavailable
+        if manager.enabled and manager.has_openstack:
+            # fill in null tenant ids 
+            sites = Site.objects.filter(tenant_id__in=[None, ''])
+            for site in sites:
+                # calling save() on the model should force the tenant_id to be set
+                site.os_manager = manager
+                site.save() 
+                                        
+if __name__ == '__main__':
+    SiteAgent().run()
+                 
diff --git a/planetstack/openstack/sliveragent.py b/planetstack/openstack/sliveragent.py
new file mode 100644
index 0000000..b2f29cf
--- /dev/null
+++ b/planetstack/openstack/sliveragent.py
@@ -0,0 +1,39 @@
+import os
+import sys
+#os.environ.setdefault("DJANGO_SETTINGS_MODULE", "planetstack.settings")
+import time
+from core.models.sliver import Sliver
+from openstack.manager import OpenStackManager
+
+class SliverAgent:
+
+    def run(self):
+        manager = OpenStackManager()
+        # exit if openstack is disable or unavailable
+        if not manager.enabled or not manager.has_openstack:
+            sys.exit()
+
+        while True :
+            # fill in null ip addresses 
+            slivers = Sliver.objects.filter(ip=None)
+            for sliver in slivers:
+                # update connection
+                manager.client.connect(username=manager.client.keystone.username,
+                               password=manager.client.keystone.password,
+                               tenant=sliver.slice.name)  
+                sliver.os_manager = manager
+                servers = manager.client.nova.servers.findall(id=sliver.instance_id)
+                if not servers:
+                    continue
+                server = servers[0]
+                ips = server.addresses.get(sliver.slice.name, [])
+                if not ips:
+                    continue
+                sliver.ip = ips[0]['addr']
+                sliver.save()
+            time.sleep(7)
+                
+                                        
+if __name__ == '__main__':
+    SliverAgent().run()
+