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