8 from collections import defaultdict
9 from nova.exception import ImageNotFound
10 from nova.api.ec2.cloud import CloudController
11 from sfa.util.faults import SfaAPIError, InvalidRSpec
12 from sfa.rspecs.rspec import RSpec
13 from sfa.rspecs.elements.hardware_type import HardwareType
14 from sfa.rspecs.elements.node import Node
15 from sfa.rspecs.elements.sliver import Sliver
16 from sfa.rspecs.elements.login import Login
17 from sfa.rspecs.elements.disk_image import DiskImage
18 from sfa.rspecs.elements.services import Services
19 from sfa.rspecs.elements.interface import Interface
20 from sfa.util.xrn import Xrn
21 from sfa.planetlab.plxrn import PlXrn
22 from sfa.openstack.osxrn import OSXrn, hrn_to_os_slicename
23 from sfa.rspecs.version_manager import VersionManager
24 from sfa.openstack.security_group import SecurityGroup
25 from sfa.server.threadmanager import ThreadManager
26 from sfa.util.sfalogging import logger
28 def pubkeys_to_user_data(pubkeys):
29 user_data = "#!/bin/bash\n\n"
30 for pubkey in pubkeys:
31 pubkey = pubkey.replace('\n', '')
32 user_data += "echo %s >> /root/.ssh/authorized_keys" % pubkey
34 user_data += "echo >> /root/.ssh/authorized_keys"
38 def instance_to_sliver(instance, slice_xrn=None):
40 sliver = Sliver({'name': instance.name,
41 'type': instance.name,
42 'cpus': str(instance.vcpus),
43 'memory': str(instance.ram),
44 'storage': str(instance.disk)})
47 def image_to_rspec_disk_image(image):
49 img['name'] = image['name']
50 img['description'] = image['name']
51 img['os'] = image['name']
52 img['version'] = image['name']
57 def __init__(self, driver):
60 def get_rspec(self, slice_xrn=None, version=None, options={}):
61 version_manager = VersionManager()
62 version = version_manager.get_version(version)
64 rspec_version = version_manager._get_version(version.type, version.version, 'ad')
65 nodes = self.get_aggregate_nodes()
67 rspec_version = version_manager._get_version(version.type, version.version, 'manifest')
68 nodes = self.get_slice_nodes(slice_xrn)
69 rspec = RSpec(version=rspec_version, user_options=options)
70 rspec.version.add_nodes(nodes)
73 def get_availability_zones(self):
75 zones = self.driver.shell.nova_manager.dns_domains.domains()
80 zones = [zone.name for zone in zones]
83 def get_slice_nodes(self, slice_xrn):
84 # update nova connection
85 tenant_name = OSXrn(xrn=slice_xrn, type='slice').get_tenant_name()
86 self.driver.shell.nova_manager.connect(tenant=tenant_name)
88 zones = self.get_availability_zones()
89 name = hrn_to_os_slicename(slice_xrn)
90 instances = self.driver.shell.nova_manager.servers.findall(name=name)
92 for instance in instances:
94 node_xrn = instance.metadata.get('component_id')
96 node_xrn = OSXrn('cloud', type='node')
98 node_xrn = OSXrn(xrn=node_xrn, type='node')
101 rspec_node['component_id'] = node_xrn.urn
102 rspec_node['component_name'] = node_xrn.name
103 rspec_node['component_manager_id'] = Xrn(self.driver.hrn, 'authority+cm').get_urn()
104 rspec_node['slivers'] = []
106 if instance.metadata.get('client_id'):
107 rspec_node['client_id'] = instance.metadata.get('client_id')
109 flavor = self.driver.shell.nova_manager.flavors.find(id=instance.flavor['id'])
110 sliver = instance_to_sliver(flavor)
111 rspec_node['slivers'].append(sliver)
112 sliver_xrn = OSXrn(xrn=slice_xrn, type='slice', id=instance.id)
113 rspec_node['sliver_id'] = sliver_xrn.get_urn()
114 image = self.driver.shell.image_manager.get_images(id=instance.image['id'])
115 if isinstance(image, list) and len(image) > 0:
117 disk_image = image_to_rspec_disk_image(image)
118 sliver['disk_image'] = [disk_image]
121 rspec_node['services'] = []
122 rspec_node['interfaces'] = []
123 addresses = instance.addresses
124 # HACK: public ips are stored in the list of private, but
125 # this seems wrong. Assume pub ip is the last in the list of
126 # private ips until openstack bug is fixed.
127 if addresses.get('private'):
128 login = Login({'authentication': 'ssh-keys',
129 'hostname': addresses.get('private')[-1]['addr'],
130 'port':'22', 'username': 'root'})
131 service = Services({'login': login})
132 rspec_node['services'].append(service)
134 for private_ip in addresses.get('private', []):
135 if_xrn = PlXrn(auth=self.driver.hrn,
136 interface='node%s' % (instance.hostId))
137 if_client_id = Xrn(if_xrn.urn, type='interface', id="eth%s" %if_index).urn
138 interface = Interface({'component_id': if_xrn.urn,
139 'client_id': if_client_id})
140 interface['ips'] = [{'address': private_ip['addr'],
141 #'netmask': private_ip['network'],
142 'type': 'ipv%s' % str(private_ip['version'])}]
143 rspec_node['interfaces'].append(interface)
145 # slivers always provide the ssh service
146 for public_ip in addresses.get('public', []):
147 login = Login({'authentication': 'ssh-keys',
148 'hostname': public_ip['addr'],
149 'port':'22', 'username': 'root'})
150 service = Services({'login': login})
151 rspec_node['services'].append(service)
152 rspec_nodes.append(rspec_node)
155 def get_aggregate_nodes(self):
156 zones = self.get_availability_zones()
157 # available sliver/instance/vm types
158 instances = self.driver.shell.nova_manager.flavors.list()
159 if isinstance(instances, dict):
160 instances = instances.values()
162 images = self.driver.shell.image_manager.get_images_detailed()
163 disk_images = [image_to_rspec_disk_image(img) for img in images if img['container_format'] in ['ami', 'ovf']]
167 xrn = OSXrn(zone, type='node')
168 rspec_node['component_id'] = xrn.urn
169 rspec_node['component_name'] = xrn.name
170 rspec_node['component_manager_id'] = Xrn(self.driver.hrn, 'authority+cm').get_urn()
171 rspec_node['exclusive'] = 'false'
172 rspec_node['hardware_types'] = [HardwareType({'name': 'plos-pc'}),
173 HardwareType({'name': 'pc'})]
175 for instance in instances:
176 sliver = instance_to_sliver(instance)
177 sliver['disk_image'] = disk_images
178 slivers.append(sliver)
180 rspec_node['slivers'] = slivers
181 rspec_nodes.append(rspec_node)
186 def create_tenant(self, tenant_name):
187 tenants = self.driver.shell.auth_manager.tenants.findall(name=tenant_name)
189 self.driver.shell.auth_manager.tenants.create(tenant_name, tenant_name)
190 tenant = self.driver.shell.auth_manager.tenants.find(name=tenant_name)
196 def create_instance_key(self, slice_hrn, user):
197 slice_name = Xrn(slice_hrn).leaf
198 user_name = Xrn(user['urn']).leaf
199 key_name = "%s_%s" % (slice_name, user_name)
200 pubkey = user['keys'][0]
202 existing_keys = self.driver.shell.nova_manager.keypairs.findall(name=key_name)
203 for existing_key in existing_keys:
204 if existing_key.public_key != pubkey:
205 self.driver.shell.nova_manager.keypairs.delete(existing_key)
206 elif existing_key.public_key == pubkey:
210 self.driver.shell.nova_manager.keypairs.create(key_name, pubkey)
214 def create_security_group(self, slicename, fw_rules=[]):
215 # use default group by default
216 group_name = 'default'
217 if isinstance(fw_rules, list) and fw_rules:
218 # Each sliver get's its own security group.
219 # Keep security group names unique by appending some random
221 random_name = "".join([random.choice(string.letters+string.digits)
223 group_name = slicename + random_name
224 security_group = SecurityGroup(self.driver)
225 security_group.create_security_group(group_name)
226 for rule in fw_rules:
227 security_group.add_rule_to_group(group_name,
228 protocol = rule.get('protocol'),
229 cidr_ip = rule.get('cidr_ip'),
230 port_range = rule.get('port_range'),
231 icmp_type_code = rule.get('icmp_type_code'))
232 # Open ICMP by default
233 security_group.add_rule_to_group(group_name,
235 cidr_ip = "0.0.0.0/0",
236 icmp_type_code = "-1:-1")
239 def add_rule_to_security_group(self, group_name, **kwds):
240 security_group = SecurityGroup(self.driver)
241 security_group.add_rule_to_group(group_name=group_name,
242 protocol=kwds.get('protocol'),
243 cidr_ip =kwds.get('cidr_ip'),
244 icmp_type_code = kwds.get('icmp_type_code'))
248 def run_instances(self, instance_name, tenant_name, rspec, key_name, pubkeys):
249 #logger.debug('Reserving an instance: image: %s, flavor: ' \
250 # '%s, key: %s, name: %s' % \
251 # (image_id, flavor_id, key_name, slicename))
253 # make sure a tenant exists for this slice
254 tenant = self.create_tenant(tenant_name)
256 # add the sfa admin user to this tenant and update our nova client connection
257 # to use these credentials for the rest of this session. This emsures that the instances
258 # we create will be assigned to the correct tenant.
259 sfa_admin_user = self.driver.shell.auth_manager.users.find(name=self.driver.shell.auth_manager.opts['OS_USERNAME'])
260 user_role = self.driver.shell.auth_manager.roles.find(name='user')
261 admin_role = self.driver.shell.auth_manager.roles.find(name='admin')
262 self.driver.shell.auth_manager.roles.add_user_role(sfa_admin_user, admin_role, tenant)
263 self.driver.shell.auth_manager.roles.add_user_role(sfa_admin_user, user_role, tenant)
264 self.driver.shell.nova_manager.connect(tenant=tenant.name)
266 authorized_keys = "\n".join(pubkeys)
267 files = {'/root/.ssh/authorized_keys': authorized_keys}
269 requested_instances = defaultdict(list)
270 # iterate over clouds/zones/nodes
271 for node in rspec.version.get_nodes_with_slivers():
272 instances = node.get('slivers', [])
275 for instance in instances:
278 flavor_id = self.driver.shell.nova_manager.flavors.find(name=instance['name'])
279 image = instance.get('disk_image')
280 if image and isinstance(image, list):
283 raise InvalidRSpec("Must specify a disk_image for each VM")
284 image_id = self.driver.shell.nova_manager.images.find(name=image['name'])
285 fw_rules = instance.get('fw_rules', [])
286 group_name = self.create_security_group(instance_name, fw_rules)
287 metadata['security_groups'] = group_name
288 if node.get('component_id'):
289 metadata['component_id'] = node['component_id']
290 if node.get('client_id'):
291 metadata['client_id'] = node['client_id']
292 self.driver.shell.nova_manager.servers.create(flavor=flavor_id,
295 security_groups = [group_name],
299 except Exception, err:
304 def delete_instances(self, instance_name, tenant_name):
306 def _delete_security_group(instance):
307 security_group = instance.metadata.get('security_groups', '')
309 manager = SecurityGroup(self.driver)
310 timeout = 10.0 # wait a maximum of 10 seconds before forcing the security group delete
311 start_time = time.time()
312 instance_deleted = False
313 while instance_deleted == False and (time.time() - start_time) < timeout:
314 inst = self.driver.shell.nova_manager.servers.findall(id=instance.id)
316 instance_deleted = True
318 manager.delete_security_group(security_group)
320 thread_manager = ThreadManager()
321 self.driver.shell.nova_manager.connect(tenant=tenant_name)
322 instances = self.driver.shell.nova_manager.servers.findall(name=instance_name)
323 for instance in instances:
325 self.driver.shell.nova_manager.servers.delete(instance)
326 # deleate this instance's security groups
327 thread_manager.run(_delete_security_group, instance)
331 def stop_instances(self, instance_name, tenant_name):
332 self.driver.shell.nova_manager.connect(tenant=tenant_name)
333 instances = self.driver.shell.nova_manager.servers.findall(name=instance_name)
334 for instance in instances:
335 self.driver.shell.nova_manager.servers.pause(instance)
338 def update_instances(self, project_name):