plstackapi/openstack/manager.py

   1 from netaddr import IPAddress, IPNetwork
   2 from plstackapi.planetstack import settings
   3 from django.core import management
   4 management.setup_environ(settings)
   5 from plstackapi.planetstack.config import Config
   6 try:
   7     from plstackapi.openstack.client import OpenStackClient
   8     from plstackapi.openstack.driver import OpenStackDriver
   9     from plstackapi.core.models import *
  10     has_openstack = True
  11 except:
  12     has_openstack = False
  13
  14 manager_enabled = Config().api_nova_enabled
  15
  16 def require_enabled(callable):
  17     def wrapper(*args, **kwds):
  18         if manager_enabled and has_openstack:
  19             return callable(*args, **kwds)
  20         else:
  21             return None
  22     return wrapper
  23
  24
  25 class OpenStackManager:
  26
  27     def __init__(self, auth={}, caller=None):
  28         self.client = None
  29         self.driver = None
  30         self.caller = None
  31         self.has_openstack = has_openstack
  32         self.enabled = manager_enabled
  33
  34         if has_openstack and manager_enabled:
  35             if auth:
  36                 self.client = OpenStackClient(**auth)
  37             else:
  38                 self.client = OpenStackClient()
  39             self.driver = OpenStackDriver(client=self.client)
  40
  41             if caller:
  42                 self.caller = caller
  43             else:
  44                 self.caller = self.driver.admin_user
  45                 self.caller.user_id = self.caller.id
  46
  47     @require_enabled
  48     def save_role(self, role):
  49         if not role.role_id:
  50             keystone_role = self.driver.create_role(role.role_type)
  51             role.role_id = keystone_role.id
  52
  53     @require_enabled
  54     def delete_role(self, role):
  55         if role.role_id:
  56             self.driver.delete_role({'id': role.role_id})
  57
  58     @require_enabled
  59     def save_key(self, key):
  60         if not key.key_id:
  61             key_fields = {'name': key.user.email[:key.user.email.find('@')],
  62                           'key': key.key}
  63             nova_key = self.driver.create_keypair(**key_fields)
  64             key.key_id = nova_key.id
  65
  66     @require_enabled
  67     def delete_key(self, key):
  68         if key.key_id:
  69             self.driver.delete_keypair(key.key_id)
  70
  71     @require_enabled
  72     def save_user(self, user):
  73         if not user.user_id:
  74             name = user.email[:user.email.find('@')]
  75             user_fields = {'name': name,
  76                            'email': user.email,
  77                            'password': user.password,
  78                            'enabled': True}
  79             keystone_user = self.driver.create_user(**user_fields)
  80             user.user_id = keystone_user.id
  81         if user.site:
  82             self.driver.add_user_role(user.user_id, user.site.tenant_id, 'user')
  83             if user.is_admin:
  84                 self.driver.add_user_role(user.user_id, user.site.tenant_id, 'admin')
  85             else:
  86                 # may have admin role so attempt to remove it
  87                 self.driver.delete_user_role(user.user_id, user.site.tenant_id, 'admin')
  88
  89     @require_enabled
  90     def delete_user(self, user):
  91         if user.user_id:
  92             self.driver.delete_user(user.user_id)
  93
  94     @require_enabled
  95     def save_site(self, site, add_role=True):
  96         if not site.tenant_id:
  97             tenant = self.driver.create_tenant(tenant_name=site.login_base,
  98                                                description=site.name,
  99                                                enabled=site.enabled)
 100             site.tenant_id = tenant.id
 101             # give caller an admin role at the tenant they've created
 102             self.driver.add_user_role(self.caller.user_id, tenant.id, 'admin')
 103
 104         # update the record
 105         if site.id and site.tenant_id:
 106             self.driver.update_tenant(site.tenant_id,
 107                                       description=site.name,
 108                                       enabled=site.enabled)
 109
 110     @require_enabled
 111     def delete_site(self, site):
 112         if site.tenant_id:
 113             self.driver.delete_tenant(site.tenant_id)
 114
 115     @require_enabled
 116     def save_slice(self, slice):
 117         if not slice.tenant_id:
 118             nova_fields = {'tenant_name': slice.name,
 119                    'description': slice.description,
 120                    'enabled': slice.enabled}
 121             tenant = self.driver.create_tenant(**nova_fields)
 122             slice.tenant_id = tenant.id
 123
 124             # give caller an admin role at the tenant they've created
 125             self.driver.add_user_role(self.caller.user_id, tenant.id, 'admin')
 126
 127             # refresh credentials using this tenant
 128             self.driver.shell.connect(username=self.driver.shell.keystone.username,
 129                                       password=self.driver.shell.keystone.password,
 130                                       tenant=tenant.name)
 131
 132             # create network
 133             network = self.driver.create_network(slice.name)
 134             slice.network_id = network['id']
 135
 136             # create router
 137             router = self.driver.create_router(slice.name)
 138             slice.router_id = router['id']
 139
 140             # create subnet
 141             next_subnet = self.get_next_subnet()
 142             cidr = str(next_subnet.cidr)
 143             ip_version = next_subnet.version
 144             start = str(next_subnet[2])
 145             end = str(next_subnet[-2])
 146             subnet = self.driver.create_subnet(name=slice.name,
 147                                                network_id = network['id'],
 148                                                cidr_ip = cidr,
 149                                                ip_version = ip_version,
 150                                                start = start,
 151                                                end = end)
 152             slice.subnet_id = subnet['id']
 153             # add subnet as interface to slice's router
 154             self.driver.add_router_interface(router['id'], subnet['id'])
 155
 156
 157         if slice.id and slice.tenant_id:
 158             self.driver.update_tenant(slice.tenant_id,
 159                                       description=slice.description,
 160                                       enabled=slice.enabled)
 161
 162     @require_enabled
 163     def delete_slice(self, slice):
 164         if slice.tenant_id:
 165             self.driver.delete_router_interface(slice.router_id, slice.subnet_id)
 166             self.driver.delete_subnet(slice.subnet_id)
 167             self.driver.delete_router(slice.router_id)
 168             self.driver.delete_network(slice.network_id)
 169             self.driver.delete_tenant(slice.tenant_id)
 170
 171
 172
 173     def get_next_subnet(self):
 174         # limit ourself to 10.0.x.x for now
 175         valid_subnet = lambda net: net.startswith('10.0')
 176         subnets = self.driver.shell.quantum.list_subnets()['subnets']
 177         ints = [int(IPNetwork(subnet['cidr']).ip) for subnet in subnets \
 178                 if valid_subnet(subnet['cidr'])]
 179         ints.sort()
 180         last_ip = IPAddress(ints[-1])
 181         last_network = IPNetwork(str(last_ip) + "/24")
 182         next_network = IPNetwork(str(IPAddress(last_network) + last_network.size) + "/24")
 183         return next_network
 184
 185     @require_enabled
 186     def save_subnet(self, subnet):
 187         if not subnet.subnet_id:
 188             quantum_subnet = self.driver.create_subnet(name= subnet.slice.name,
 189                                           network_id=subnet.slice.network_id,
 190                                           cidr_ip = subnet.cidr,
 191                                           ip_version=subnet.ip_version,
 192                                           start = subnet.start,
 193                                           end = subnet.end)
 194             subnet.subnet_id = quantum_subnet['id']
 195             # add subnet as interface to slice's router
 196             self.driver.add_router_interface(subnet.slice.router_id, subnet.subnet_id)
 197             #add_route = 'route add -net %s dev br-ex gw 10.100.0.5' % self.cidr
 198             #commands.getstatusoutput(add_route)
 199
 200
 201     @require_enabled
 202     def delete_subnet(self, subnet):
 203         if subnet.subnet_id:
 204             self.driver.delete_router_interface(subnet.slice.router_id, subnet.subnet_id)
 205             self.driver.delete_subnet(subnet.subnet_id)
 206             #del_route = 'route del -net %s' % self.cidr
 207             #commands.getstatusoutput(del_route)
 208
 209     @require_enabled
 210     def save_sliver(self, sliver):
 211         if not sliver.instance_id:
 212             instance = self.driver.spawn_instance(name=sliver.name,
 213                                    key_name = sliver.key.name,
 214                                    image_id = sliver.image.image_id,
 215                                    hostname = sliver.node.name )
 216             sliver.instance_id = instance.id
 217             sliver.instance_name = getattr(instance, 'OS-EXT-SRV-ATTR:instance_name')
 218
 219         if sliver.instance_id and ("numberCores" in sliver.changed_fields):
 220             self.driver.update_instance_metadata(sliver.instance_id, {"cpu_cores": str(sliver.numberCores)})
 221
 222     @require_enabled
 223     def delete_sliver(self, sliver):
 224         if sliver.instance_id:
 225             self.driver.destroy_instance(sliver.instance_id)
 226
 227
 228     def refresh_nodes(self):
 229         # collect local nodes
 230         nodes = Node.objects.all()
 231         nodes_dict = {}
 232         for node in nodes:
 233             if 'viccidev10' not in node.name:
 234                 nodes_dict[node.name] = node
 235
 236         deployment = DeploymentNetwork.objects.filter(name='VICCI')[0]
 237         login_bases = ['princeton', 'stanford', 'gt', 'uw', 'mpisws']
 238         sites = Site.objects.filter(login_base__in=login_bases)
 239         # collect nova nodes:
 240         compute_nodes = self.client.nova.hypervisors.list()
 241
 242         compute_nodes_dict = {}
 243         for compute_node in compute_nodes:
 244             compute_nodes_dict[compute_node.hypervisor_hostname] = compute_node
 245
 246         # add new nodes:
 247         new_node_names = set(compute_nodes_dict.keys()).difference(nodes_dict.keys())
 248         i = 0
 249         max = len(sites)
 250         for name in new_node_names:
 251             if i == max:
 252                 i = 0
 253             site = sites[i]
 254             node = Node(name=compute_nodes_dict[name].hypervisor_hostname,
 255                         site=site,
 256                         deploymentNetwork=deployment)
 257             node.save()
 258             i+=1
 259
 260         # remove old nodes
 261         old_node_names = set(nodes_dict.keys()).difference(compute_nodes_dict.keys())
 262         Node.objects.filter(name__in=old_node_names).delete()
 263
 264     def refresh_images(self):
 265         # collect local images
 266         images = Image.objects.all()
 267         images_dict = {}
 268         for image in images:
 269             images_dict[image.name] = image
 270
 271         # collect glance images
 272         glance_images = self.client.glance.get_images()
 273         glance_images_dict = {}
 274         for glance_image in glance_images:
 275             glance_images_dict[glance_image['name']] = glance_image
 276
 277         # add new images
 278         new_image_names = set(glance_images_dict.keys()).difference(images_dict.keys())
 279         for name in new_image_names:
 280             image = Image(image_id=glance_images_dict[name]['id'],
 281                           name=glance_images_dict[name]['name'],
 282                           disk_format=glance_images_dict[name]['disk_format'],
 283                           container_format=glance_images_dict[name]['container_format'])
 284             image.save()
 285
 286         # remove old images
 287         old_image_names = set(images_dict.keys()).difference(glance_images_dict.keys())
 288         Image.objects.filter(name__in=old_image_names).delete()
 289
 290