7 from collections import defaultdict
8 from nova.exception import ImageNotFound
9 from nova.api.ec2.cloud import CloudController
10 from sfa.util.faults import SfaAPIError
11 from sfa.rspecs.rspec import RSpec
12 from sfa.rspecs.elements.hardware_type import HardwareType
13 from sfa.rspecs.elements.node import Node
14 from sfa.rspecs.elements.sliver import Sliver
15 from sfa.rspecs.elements.login import Login
16 from sfa.rspecs.elements.disk_image import DiskImage
17 from sfa.rspecs.elements.services import Services
18 from sfa.rspecs.elements.interface import Interface
19 from sfa.util.xrn import Xrn
20 from sfa.planetlab.plxrn import PlXrn
21 from sfa.openstack.osxrn import OSXrn, hrn_to_os_slicename
22 from sfa.rspecs.version_manager import VersionManager
23 from sfa.openstack.security_group import SecurityGroup
24 from sfa.util.sfalogging import logger
26 def pubkeys_to_user_data(pubkeys):
27 user_data = "#!/bin/bash\n\n"
28 for pubkey in pubkeys:
29 pubkey = pubkey.replace('\n', '')
30 user_data += "echo %s >> /root/.ssh/authorized_keys" % pubkey
32 user_data += "echo >> /root/.ssh/authorized_keys"
36 def instance_to_sliver(instance, slice_xrn=None):
39 xrn = Xrn(slice_xrn, 'slice')
40 sliver_id = xrn.get_sliver_id(instance.project_id, instance.hostname, instance.id)
42 sliver = Sliver({'slice_id': sliver_id,
43 'name': instance.name,
44 'type': instance.name,
45 'cpus': str(instance.vcpus),
46 'memory': str(instance.ram),
47 'storage': str(instance.disk)})
50 def image_to_rspec_disk_image(image):
52 img['name'] = image['name']
53 img['description'] = image['name']
54 img['os'] = image['name']
55 img['version'] = image['name']
60 def __init__(self, driver):
63 def get_availability_zones(self):
64 zones = self.driver.shell.nova_manager.dns_domains.domains()
68 zones = [zone.name for zone in zones]
72 def describe(self, urns, version=None, options={}):
76 def get_rspec(self, slice_xrn=None, version=None, options={}):
77 version_manager = VersionManager()
78 version = version_manager.get_version(version)
80 rspec_version = version_manager._get_version(version.type, version.version, 'ad')
81 rspec = self.get_aggregate_rspec(rspec_version, options)
83 rspec_version = version_manager._get_version(version.type, version.version, 'manifest')
84 rspec = self.get_slice_rsepc(slice_xrn, rspec_version, options)
88 def get_aggregate_rspec(self, version, options={}):
89 rspec = RSpec(version=version, user_options=options)
90 nodes = self.get_aggregate_nodes()
91 rspec.version.add_nodes(nodes)
94 def get_slice_rspec(self, xrn, version, options={}):
95 rspec = RSpec(version=version, user_options=options)
96 nodes = self.get_slice_nodes(slice_xrn)
97 rspec.version.add_nodes(nodes)
100 def get_slice_nodes(self, slice_xrn):
101 # update nova connection
102 tenant_name = OSXrn(xrn=slice_xrn, type='slice').get_tenant_name()
103 self.driver.shell.nova_manager.connect(tenant=tenant_name)
105 zones = self.get_availability_zones()
106 name = hrn_to_os_slicename(slice_xrn)
107 instances = self.driver.shell.nova_manager.servers.findall(name=name)
109 for instance in instances:
111 #TODO: find a way to look up an instances availability zone in essex
112 #if instance.availability_zone:
113 # node_xrn = OSXrn(instance.availability_zone, 'node')
115 # node_xrn = OSXrn('cloud', 'node')
116 node_xrn = instance.metadata.get('component_id')
119 node_xrn = OSXrn('cloud', type='node')
121 node_xrn = OSXrn(xrn=node_xrn, type='node')
123 rspec_node['component_id'] = node_xrn.urn
124 rspec_node['component_name'] = node_xrn.name
125 rspec_node['component_manager_id'] = Xrn(self.driver.hrn, 'authority+cm').get_urn()
126 flavor = self.driver.shell.nova_manager.flavors.find(id=instance.flavor['id'])
127 sliver = instance_to_sliver(flavor)
128 rspec_node['slivers'] = [sliver]
129 image = self.driver.shell.image_manager.get_images(id=instance.image['id'])
130 if isinstance(image, list) and len(image) > 0:
132 disk_image = image_to_rspec_disk_image(image)
133 sliver['disk_image'] = [disk_image]
136 rspec_node['services'] = []
137 rspec_node['interfaces'] = []
138 addresses = instance.addresses
139 # HACK: public ips are stored in the list of private, but
140 # this seems wrong. Assume pub ip is the last in the list of
141 # private ips until openstack bug is fixed.
142 if addresses.get('private'):
143 login = Login({'authentication': 'ssh-keys',
144 'hostname': addresses.get('private')[-1]['addr'],
145 'port':'22', 'username': 'root'})
146 service = Services({'login': login})
147 rspec_node['services'].append(service)
149 for private_ip in addresses.get('private', []):
150 if_xrn = PlXrn(auth=self.driver.hrn,
151 interface='node%s:eth0' % (instance.hostId))
152 interface = Interface({'component_id': if_xrn.urn})
153 interface['ips'] = [{'address': private_ip['addr'],
154 #'netmask': private_ip['network'],
155 'type': private_ip['version']}]
156 rspec_node['interfaces'].append(interface)
158 # slivers always provide the ssh service
159 for public_ip in addresses.get('public', []):
160 login = Login({'authentication': 'ssh-keys',
161 'hostname': public_ip['addr'],
162 'port':'22', 'username': 'root'})
163 service = Services({'login': login})
164 rspec_node['services'].append(service)
165 rspec_nodes.append(rspec_node)
168 def get_aggregate_nodes(self):
169 zones = self.get_availability_zones()
170 # available sliver/instance/vm types
171 instances = self.driver.shell.nova_manager.flavors.list()
172 if isinstance(instances, dict):
173 instances = instances.values()
175 images = self.driver.shell.image_manager.get_images_detailed()
176 disk_images = [image_to_rspec_disk_image(img) for img in images if img['container_format'] in ['ami', 'ovf']]
180 xrn = OSXrn(zone, type='node')
181 rspec_node['component_id'] = xrn.urn
182 rspec_node['component_name'] = xrn.name
183 rspec_node['component_manager_id'] = Xrn(self.driver.hrn, 'authority+cm').get_urn()
184 rspec_node['exclusive'] = 'false'
185 rspec_node['hardware_types'] = [HardwareType({'name': 'plos-pc'}),
186 HardwareType({'name': 'pc'})]
188 for instance in instances:
189 sliver = instance_to_sliver(instance)
190 sliver['disk_image'] = disk_images
191 slivers.append(sliver)
193 rspec_node['slivers'] = slivers
194 rspec_nodes.append(rspec_node)
199 def create_tenant(self, tenant_name):
200 tenants = self.driver.shell.auth_manager.tenants.findall(name=tenant_name)
202 self.driver.shell.auth_manager.tenants.create(tenant_name, tenant_name)
203 tenant = self.driver.shell.auth_manager.tenants.find(name=tenant_name)
209 def create_instance_key(self, slice_hrn, user):
210 slice_name = Xrn(slice_hrn).leaf
211 user_name = Xrn(user['urn']).leaf
212 key_name = "%s_%s" % (slice_name, user_name)
213 pubkey = user['keys'][0]
215 existing_keys = self.driver.shell.nova_manager.keypairs.findall(name=key_name)
216 for existing_key in existing_keys:
217 if existing_key.public_key != pubkey:
218 self.driver.shell.nova_manager.keypairs.delete(existing_key)
219 elif existing_key.public_key == pubkey:
223 self.driver.shell.nova_manager.keypairs.create(key_name, pubkey)
227 def create_security_group(self, slicename, fw_rules=[]):
228 # use default group by default
229 group_name = 'default'
230 if isinstance(fw_rules, list) and fw_rules:
231 # Each sliver get's its own security group.
232 # Keep security group names unique by appending some random
234 random_name = "".join([random.choice(string.letters+string.digits)
236 group_name = slicename + random_name
237 security_group = SecurityGroup(self.driver)
238 security_group.create_security_group(group_name)
239 for rule in fw_rules:
240 security_group.add_rule_to_group(group_name,
241 protocol = rule.get('protocol'),
242 cidr_ip = rule.get('cidr_ip'),
243 port_range = rule.get('port_range'),
244 icmp_type_code = rule.get('icmp_type_code'))
247 def add_rule_to_security_group(self, group_name, **kwds):
248 security_group = SecurityGroup(self.driver)
249 security_group.add_rule_to_group(group_name=group_name,
250 protocol=kwds.get('protocol'),
251 cidr_ip =kwds.get('cidr_ip'),
252 icmp_type_code = kwds.get('icmp_type_code'))
256 def run_instances(self, instance_name, tenant_name, rspec, key_name, pubkeys):
257 #logger.debug('Reserving an instance: image: %s, flavor: ' \
258 # '%s, key: %s, name: %s' % \
259 # (image_id, flavor_id, key_name, slicename))
261 # make sure a tenant exists for this slice
262 tenant = self.create_tenant(tenant_name)
264 # add the sfa admin user to this tenant and update our nova client connection
265 # to use these credentials for the rest of this session. This emsures that the instances
266 # we create will be assigned to the correct tenant.
267 sfa_admin_user = self.driver.shell.auth_manager.users.find(name=self.driver.shell.auth_manager.opts['OS_USERNAME'])
268 user_role = self.driver.shell.auth_manager.roles.find(name='user')
269 admin_role = self.driver.shell.auth_manager.roles.find(name='admin')
270 self.driver.shell.auth_manager.roles.add_user_role(sfa_admin_user, admin_role, tenant)
271 self.driver.shell.auth_manager.roles.add_user_role(sfa_admin_user, user_role, tenant)
272 self.driver.shell.nova_manager.connect(tenant=tenant.name)
274 authorized_keys = "\n".join(pubkeys)
275 files = {'/root/.ssh/authorized_keys': authorized_keys}
277 requested_instances = defaultdict(list)
278 # iterate over clouds/zones/nodes
279 for node in rspec.version.get_nodes_with_slivers():
280 instances = node.get('slivers', [])
283 for instance in instances:
286 flavor_id = self.driver.shell.nova_manager.flavors.find(name=instance['name'])
287 image = instance.get('disk_image')
288 if image and isinstance(image, list):
290 image_id = self.driver.shell.nova_manager.images.find(name=image['name'])
291 fw_rules = instance.get('fw_rules', [])
292 group_name = self.create_security_group(instance_name, fw_rules)
293 metadata['security_groups'] = group_name
294 if node.get('component_id'):
295 metadata['component_id'] = node['component_id']
296 self.driver.shell.nova_manager.servers.create(flavor=flavor_id,
299 security_groups = [group_name],
303 except Exception, err:
308 def delete_instances(self, instance_name, tenant_name):
309 self.driver.shell.nova_manager.connect(tenant=tenant_name)
310 instances = self.driver.shell.nova_manager.servers.findall(name=instance_name)
311 security_group_manager = SecurityGroup(self.driver)
312 for instance in instances:
313 # deleate this instance's security groups
314 security_group = instance.metadata.get('security_groups', '')
316 # dont delete the default security group
317 if security_group != 'default':
318 security_group_manager.delete_security_group(security_group)
320 self.driver.shell.nova_manager.servers.delete(instance)
323 def stop_instances(self, instance_name, tenant_name):
324 self.driver.shell.nova_manager.connect(tenant=tenant_name)
325 instances = self.driver.shell.nova_manager.servers.findall(name=instance_name)
326 for instance in instances:
327 self.driver.shell.nova_manager.servers.pause(instance)
330 def update_instances(self, project_name):