import os #os.environ.setdefault("DJANGO_SETTINGS_MODULE", "planetstack.settings") import string import random from netaddr import IPAddress, IPNetwork from planetstack import settings from django.core import management from planetstack.config import Config try: from openstack.client import OpenStackClient from openstack.driver import OpenStackDriver from core.models import * has_openstack = True except: has_openstack = False manager_enabled = Config().api_nova_enabled def random_string(size=6): return ''.join(random.choice(string.ascii_uppercase + string.digits) for x in range(size)) 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): 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_user(self, auth, caller): self.client = OpenStackClient(**auth) self.driver = OpenStackDriver(client=self.client) self.caller = caller @require_enabled def init_admin(self): # use the admin credentials self.client = OpenStackClient() 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): if not key.nkey_id: key_fields = {'name': random_string(8), 'key': key.key} nova_key = self.driver.create_keypair(**key_fields) key.nkey_id = nova_key.id @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): 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 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') @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'] # 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']) 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_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) 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) @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') if sliver.instance_id and ("numberCores" in sliver.changed_fields): self.driver.update_instance_metadata(sliver.instance_id, {"cpu_cores": str(sliver.numberCores)}) @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 = 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, 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): 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()