planetstack/openstack/driver.py

   1 import commands
   2 from planetstack.config import Config
   3 from openstack.client import OpenStackClient
   4
   5 class OpenStackDriver:
   6
   7     def __init__(self, config = None, client=None):
   8         if config:
   9             self.config = Config(config)
  10         else:
  11             self.config = Config()
  12
  13         self.admin_client = OpenStackClient()
  14         self.admin_user = self.admin_client.keystone.users.find(name=self.admin_client.keystone.username)
  15
  16         if client:
  17             self.shell = client
  18         else:
  19             self.shell = OpenStackClient()
  20
  21     def create_role(self, name):
  22         roles = self.shell.keystone.roles.findall(name=name)
  23         if not roles:
  24             role = self.shell.keystone.roles.create(name)
  25         else:
  26             role = roles[0]
  27         return role
  28
  29     def delete_role(self, filter):
  30         roles = self.shell.keystone.roles.findall(**filter)
  31         for role in roles:
  32             self.shell.keystone.roles.delete(role)
  33         return 1
  34
  35     def create_tenant(self, tenant_name, enabled, description):
  36         """Create keystone tenant. Suggested fields: name, description, enabled"""
  37         tenants = self.shell.keystone.tenants.findall(name=tenant_name)
  38         if not tenants:
  39             fields = {'tenant_name': tenant_name, 'enabled': enabled,
  40                       'description': description}
  41             tenant = self.shell.keystone.tenants.create(**fields)
  42         else:
  43             tenant = tenants[0]
  44
  45         # always give the admin user the admin role to any tenant created
  46         # by the driver.
  47         self.add_user_role(self.admin_user.id, tenant.id, 'admin')
  48         return tenant
  49
  50     def update_tenant(self, id, **kwds):
  51         return self.shell.keystone.tenants.update(id, **kwds)
  52
  53     def delete_tenant(self, id):
  54         tenants = self.shell.keystone.tenants.findall(id=id)
  55         for tenant in tenants:
  56             self.shell.keystone.tenants.delete(tenant)
  57         return 1
  58
  59     def create_user(self, name, email, password, enabled):
  60         users = self.shell.keystone.users.findall(email=email)
  61         if not users:
  62             fields = {'name': name, 'email': email, 'password': password,
  63                       'enabled': enabled}
  64             user = self.shell.keystone.users.create(**fields)
  65         else:
  66             user = users[0]
  67         return user
  68
  69     def delete_user(self, id):
  70         users = self.shell.keystone.users.findall(id=id)
  71         for user in users:
  72             # delete users keys
  73             keys = self.shell.nova.keypairs.findall()
  74             for key in keys:
  75                 self.shell.nova.keypairs.delete(key)
  76             self.shell.keystone.users.delete(user)
  77         return 1
  78
  79     def add_user_role(self, kuser_id, tenant_id, role_name):
  80         user = self.shell.keystone.users.find(id=kuser_id)
  81         tenant = self.shell.keystone.tenants.find(id=tenant_id)
  82         role = self.shell.keystone.roles.find(name=role_name)
  83
  84         role_found = False
  85         user_roles = user.list_roles(tenant.id)
  86         for user_role in user_roles:
  87             if user_role.name == role.name:
  88                 role_found = True
  89         if not role_found:
  90             tenant.add_user(user, role)
  91
  92         return 1
  93
  94     def delete_user_role(self, kuser_id, tenant_id, role_name):
  95         user = self.shell.keystone.users.find(id=kuser_id)
  96         tenant = self.shell.keystone.tenants.find(id=tenant_id)
  97         role = self.shell.keystone.roles.find(name=role_name)
  98
  99         role_found = False
 100         user_roles = user.list_roles(tenant.id)
 101         for user_role in user_roles:
 102             if user_role.name == role.name:
 103                 role_found = True
 104         if role_found:
 105             tenant.remove_user(user, role)
 106
 107         return 1
 108
 109     def update_user(self, id, **kwds):
 110         return self.shell.keystone.users.update(id, **kwds)
 111
 112     def create_router(self, name, set_gateway=True):
 113         routers = self.shell.quantum.list_routers(name=name)['routers']
 114         if routers:
 115             router = routers[0]
 116         else:
 117             router = self.shell.quantum.create_router({'router': {'name': name}})['router']
 118         # add router to external network
 119         if set_gateway:
 120             nets = self.shell.quantum.list_networks()['networks']
 121             for net in nets:
 122                 if net['router:external'] == True:
 123                     self.shell.quantum.add_gateway_router(router['id'],
 124                                                           {'network_id': net['id']})
 125
 126         return router
 127
 128     def delete_router(self, id):
 129         routers = self.shell.quantum.list_routers(id=id)['routers']
 130         for router in routers:
 131             self.shell.quantum.delete_router(router['id'])
 132             # remove router form external network
 133             #nets = self.shell.quantum.list_networks()['networks']
 134             #for net in nets:
 135             #    if net['router:external'] == True:
 136             #        self.shell.quantum.remove_gateway_router(router['id'])
 137
 138     def add_router_interface(self, router_id, subnet_id):
 139         router = self.shell.quantum.show_router(router_id)['router']
 140         subnet = self.shell.quantum.show_subnet(subnet_id)['subnet']
 141         if router and subnet:
 142             self.shell.quantum.add_interface_router(router_id, {'subnet_id': subnet_id})
 143
 144     def delete_router_interface(self, router_id, subnet_id):
 145         router = self.shell.quantum.show_router(router_id)
 146         subnet = self.shell.quantum.show_subnet(subnet_id)
 147         if router and subnet:
 148             self.shell.quantum.remove_interface_router(router_id, {'subnet_id': subnet_id})
 149
 150     def create_network(self, name):
 151         nets = self.shell.quantum.list_networks(name=name)['networks']
 152         if nets:
 153             net = nets[0]
 154         else:
 155             net = self.shell.quantum.create_network({'network': {'name': name}})['network']
 156         return net
 157
 158     def delete_network(self, id):
 159         nets = self.shell.quantum.list_networks()['networks']
 160         for net in nets:
 161             if net['id'] == id:
 162                 # delete_all ports
 163                 self.delete_network_ports(net['id'])
 164                 # delete all subnets:
 165                 for subnet_id in net['subnets']:
 166                     self.delete_subnet(subnet_id)
 167                 self.shell.quantum.delete_network(net['id'])
 168         return 1
 169
 170     def delete_network_ports(self, network_id):
 171         ports = self.shell.quantum.list_ports()['ports']
 172         for port in ports:
 173             if port['network_id'] == network_id:
 174                 self.shell.quantum.delete_port(port['id'])
 175         return 1
 176
 177     def delete_subnet_ports(self, subnet_id):
 178         ports = self.shell.quantum.list_ports()['ports']
 179         for port in ports:
 180             delete = False
 181             for fixed_ip in port['fixed_ips']:
 182                 if fixed_ip['subnet_id'] == subnet_id:
 183                     delete=True
 184                     break
 185             if delete:
 186                 self.shell.quantum.delete_port(port['id'])
 187         return 1
 188
 189     def create_subnet(self, name, network_id, cidr_ip, ip_version, start, end):
 190         #nets = self.shell.quantum.list_networks(name=network_name)['networks']
 191         #if not nets:
 192         #    raise Exception, "No such network: %s" % network_name
 193         #net = nets[0]
 194
 195         subnet = None
 196         subnets = self.shell.quantum.list_subnets()['subnets']
 197         for snet in subnets:
 198             if snet['cidr'] == cidr_ip and snet['network_id'] == network_id:
 199                 subnet = snet
 200
 201         if not subnet:
 202             allocation_pools = [{'start': start, 'end': end}]
 203             subnet = {'subnet': {'name': name,
 204                                  'network_id': network_id,
 205                                  'ip_version': ip_version,
 206                                  'cidr': cidr_ip,
 207                                  'dns_nameservers': ['8.8.8.8', '8.8.4.4'],
 208                                  'allocation_pools': allocation_pools}}
 209             subnet = self.shell.quantum.create_subnet(subnet)['subnet']
 210             self.add_external_route(subnet)
 211         # TODO: Add route to external network
 212         # e.g. #  route add -net 10.0.3.0/24 dev br-ex gw 10.100.0.5
 213         return subnet
 214
 215     def update_subnet(self, id, fields):
 216         return self.shell.quantum.update_subnet(id, fields)
 217
 218     def delete_subnet(self, id):
 219         #return self.shell.quantum.delete_subnet(id=id)
 220         # inefficient but fault tolerant
 221         subnets = self.shell.quantum.list_subnets()['subnets']
 222         for subnet in subnets:
 223             if subnet['id'] == id:
 224                 self.delete_subnet_ports(subnet['id'])
 225                 self.shell.quantum.delete_subnet(id)
 226                 self.delete_external_route(subnet)
 227         return 1
 228
 229     def add_external_route(self, subnet):
 230         ports = self.shell.quantum.list_ports()['ports']
 231
 232         gw_ip = subnet['gateway_ip']
 233         subnet_id = subnet['id']
 234
 235         # 1. Find the port associated with the subnet's gateway
 236         # 2. Find the router associated with that port
 237         # 3. Find the port associated with this router and on the external net
 238         # 4. Set up route to the subnet through the port from step 3
 239         ip_address = None
 240         for port in ports:
 241             for fixed_ip in port['fixed_ips']:
 242                 if fixed_ip['subnet_id'] == subnet_id and fixed_ip['ip_address'] == gw_ip:
 243                     gw_port = port
 244                     router_id = gw_port['device_id']
 245                     router = self.shell.quantum.show_router(router_id)['router']
 246                     ext_net = router['external_gateway_info']['network_id']
 247                     for port in ports:
 248                         if port['device_id'] == router_id and port['network_id'] == ext_net:
 249                             ip_address = port['fixed_ips'][0]['ip_address']
 250
 251         if ip_address:
 252             cmd = "route add -net %s dev br-ex gw %s" % (subnet['cidr'], ip_address)
 253             commands.getstatusoutput(cmd)
 254
 255         return 1
 256
 257     def delete_external_route(self, subnet):
 258         ports = self.shell.quantum.list_ports()['ports']
 259
 260         gw_ip = subnet['gateway_ip']
 261         subnet_id = subnet['id']
 262
 263         # 1. Find the port associated with the subnet's gateway
 264         # 2. Find the router associated with that port
 265         # 3. Find the port associated with this router and on the external net
 266         # 4. Set up route to the subnet through the port from step 3
 267         ip_address = None
 268         for port in ports:
 269             for fixed_ip in port['fixed_ips']:
 270                 if fixed_ip['subnet_id'] == subnet_id and fixed_ip['ip_address'] == gw_ip:
 271                     gw_port = port
 272                     router_id = gw_port['device_id']
 273                     router = self.shell.quantum.show_router(router_id)['router']
 274                     ext_net = router['external_gateway_info']['network_id']
 275                     for port in ports:
 276                         if port['device_id'] == router_id and port['network_id'] == ext_net:
 277                             ip_address = port['fixed_ips'][0]['ip_address']
 278
 279         if ip_address:
 280             cmd = "route delete -net %s" % (subnet['cidr'])
 281             commands.getstatusoutput(cmd)
 282
 283         return 1
 284
 285     def create_keypair(self, name, public_key):
 286         keys = self.shell.nova.keypairs.findall(name=name)
 287         if keys:
 288             key = keys[0]
 289             # update key
 290             if key.public_key != public_key:
 291                 self.delete_keypair(key.id)
 292                 key = self.shell.nova.keypairs.create(name=name, public_key=public_key)
 293         else:
 294             key = self.shell.nova.keypairs.create(name=name, public_key=public_key)
 295         return key
 296
 297     def delete_keypair(self, id):
 298         keys = self.shell.nova.keypairs.findall(id=id)
 299         for key in keys:
 300             self.shell.nova.keypairs.delete(key)
 301         return 1
 302
 303     def spawn_instance(self, name, key_name=None, hostname=None, image_id=None, security_group=None, pubkeys=[]):
 304         flavor_name = self.config.nova_default_flavor
 305         flavor = self.shell.nova.flavors.find(name=flavor_name)
 306         #if not image:
 307         #    image = self.config.nova_default_imave
 308         if not security_group:
 309             security_group = self.config.nova_default_security_group
 310
 311         #authorized_keys = "\n".join(pubkeys)
 312         #files = {'/root/.ssh/authorized_keys': authorized_keys}
 313         files = {}
 314
 315         hints = {}
 316         availability_zone = None
 317         if hostname:
 318             availability_zone = 'nova:%s' % hostname
 319         server = self.shell.nova.servers.create(
 320                                             name=name,
 321                                             key_name = key_name,
 322                                             flavor=flavor.id,
 323                                             image=image_id,
 324                                             security_group = security_group,
 325                                             files=files,
 326                                             scheduler_hints=hints,
 327                                             availability_zone=availability_zone)
 328         return server
 329
 330     def destroy_instance(self, id):
 331         servers = self.shell.nova.servers.findall(id=id)
 332         for server in servers:
 333             self.shell.nova.servers.delete(server)
 334
 335     def update_instance_metadata(self, id, metadata):
 336         servers = self.shell.nova.servers.findall(id=id)
 337         for server in servers:
 338             self.shell.nova.servers.set_meta(server, metadata)
 339             # note: set_meta() returns a broken Server() object. Don't try to
 340             # print it in the shell or it will fail in __repr__.
 341
 342     def delete_instance_metadata(self, id, metadata):
 343         # note: metadata is a dict. Only the keys matter, not the values.
 344         servers = self.shell.nova.servers.findall(id=id)
 345         for server in servers:
 346             self.shell.nova.servers.delete_meta(server, metadata)
 347