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_rspec(self, slice_xrn=None, version=None, options={}):
64 version_manager = VersionManager()
65 version = version_manager.get_version(version)
67 rspec_version = version_manager._get_version(version.type, version.version, 'ad')
68 nodes = self.get_aggregate_nodes()
70 rspec_version = version_manager._get_version(version.type, version.version, 'manifest')
71 nodes = self.get_slice_nodes(slice_xrn)
72 rspec = RSpec(version=rspec_version, user_options=options)
73 rspec.version.add_nodes(nodes)
76 def get_availability_zones(self):
78 zones = self.driver.shell.nova_manager.dns_domains.domains()
83 zones = [zone.name for zone in zones]
86 def get_slice_nodes(self, slice_xrn):
87 zones = self.get_availability_zones()
88 name = hrn_to_os_slicename(slice_xrn)
89 instances = self.driver.shell.nova_manager.servers.findall(name=name)
91 for instance in instances:
94 #TODO: find a way to look up an instances availability zone in essex
95 #if instance.availability_zone:
96 # node_xrn = OSXrn(instance.availability_zone, 'node')
98 # node_xrn = OSXrn('cloud', 'node')
99 node_xrn = instance.metadata.get('component_id')
101 node_xrn = OSXrn('cloud', 'node')
103 node_xrn = OSXrn(node_xrn, 'node')
105 rspec_node['component_id'] = node_xrn.urn
106 rspec_node['component_name'] = node_xrn.name
107 rspec_node['component_manager_id'] = Xrn(self.driver.hrn, 'authority+cm').get_urn()
108 flavor = self.driver.shell.nova_manager.flavors.find(id=instance.flavor['id'])
109 sliver = instance_to_sliver(flavor)
110 rspec_node['slivers'] = [sliver]
111 image = self.driver.shell.image_manager.get_images(id=instance.image['id'])
112 if isinstance(image, list) and len(image) > 0:
114 disk_image = image_to_rspec_disk_image(image)
115 sliver['disk_image'] = [disk_image]
119 addresses = instance.addresses
120 for private_ip in addresses.get('private', []):
121 if_xrn = PlXrn(auth=self.driver.hrn,
122 interface='node%s:eth0' % (instance.hostId))
123 interface = Interface({'component_id': if_xrn.urn})
124 interface['ips'] = [{'address': private_ip['addr'],
125 #'netmask': private_ip['network'],
126 'type': private_ip['version']}]
127 interfaces.append(interface)
128 rspec_node['interfaces'] = interfaces
130 # slivers always provide the ssh service
131 rspec_node['services'] = []
132 for public_ip in addresses.get('public', []):
133 login = Login({'authentication': 'ssh-keys',
134 'hostname': public_ip['addr'],
135 'port':'22', 'username': 'root'})
136 service = Services({'login': login})
137 rspec_node['services'].append(service)
138 rspec_nodes.append(rspec_node)
141 def get_aggregate_nodes(self):
142 zones = self.get_availability_zones()
143 # available sliver/instance/vm types
144 instances = self.driver.shell.nova_manager.flavors.list()
145 if isinstance(instances, dict):
146 instances = instances.values()
148 images = self.driver.shell.image_manager.get_images_detailed()
149 disk_images = [image_to_rspec_disk_image(img) for img in images if img['container_format'] in ['ami', 'ovf']]
153 xrn = OSXrn(zone, type='node')
154 rspec_node['component_id'] = xrn.urn
155 rspec_node['component_name'] = xrn.name
156 rspec_node['component_manager_id'] = Xrn(self.driver.hrn, 'authority+cm').get_urn()
157 rspec_node['exclusive'] = 'false'
158 rspec_node['hardware_types'] = [HardwareType({'name': 'plos-pc'}),
159 HardwareType({'name': 'pc'})]
161 for instance in instances:
162 sliver = instance_to_sliver(instance)
163 sliver['disk_image'] = disk_images
164 slivers.append(sliver)
166 rspec_node['slivers'] = slivers
167 rspec_nodes.append(rspec_node)
172 def create_instance_key(self, slice_hrn, user):
173 key_name = "%s:%s" (slice_name, Xrn(user['urn']).get_hrn())
174 pubkey = user['keys'][0]
176 existing_keys = self.driver.shell.nova_manager.keypairs.findall(name=key_name)
177 for existing_key in existing_keys:
178 if existing_key.public_key != pubkey:
179 self.driver.shell.nova_manager.keypairs.delete(existing_key)
180 elif existing_key.public_key == pubkey:
184 self.driver.shll.nova_manager.keypairs.create(key_name, pubkey)
188 def create_security_group(self, slicename, fw_rules=[]):
189 # use default group by default
190 group_name = 'default'
191 if isinstance(fw_rules, list) and fw_rules:
192 # Each sliver get's its own security group.
193 # Keep security group names unique by appending some random
195 random_name = "".join([random.choice(string.letters+string.digits)
197 group_name = slicename + random_name
198 security_group = SecurityGroup(self.driver)
199 security_group.create_security_group(group_name)
200 for rule in fw_rules:
201 security_group.add_rule_to_group(group_name,
202 protocol = rule.get('protocol'),
203 cidr_ip = rule.get('cidr_ip'),
204 port_range = rule.get('port_range'),
205 icmp_type_code = rule.get('icmp_type_code'))
208 def add_rule_to_security_group(self, group_name, **kwds):
209 security_group = SecurityGroup(self.driver)
210 security_group.add_rule_to_group(group_name=group_name,
211 protocol=kwds.get('protocol'),
212 cidr_ip =kwds.get('cidr_ip'),
213 icmp_type_code = kwds.get('icmp_type_code'))
217 def run_instances(self, slicename, rspec, key_name, pubkeys):
218 #logger.debug('Reserving an instance: image: %s, flavor: ' \
219 # '%s, key: %s, name: %s' % \
220 # (image_id, flavor_id, key_name, slicename))
222 authorized_keys = "\n".join(pubkeys)
223 files = {'/root/.ssh/authorized_keys': authorized_keys}
225 requested_instances = defaultdict(list)
226 # iterate over clouds/zones/nodes
227 for node in rspec.version.get_nodes_with_slivers():
228 instances = node.get('slivers', [])
231 for instance in instances:
233 flavor_id = self.driver.shell.nova_manager.flavors.find(name=instance['name'])
234 image = instance.get('disk_image')
235 if image and isinstance(image, list):
237 image_id = self.driver.shell.nova_manager.images.find(name=image['name'])
238 fw_rules = instance.get('fw_rules', [])
239 group_name = self.create_security_group(slicename, fw_rules)
240 metadata['security_groups'] = group_name
241 metadata['component_id'] = node['component_id']
243 self.driver.shell.nova_manager.servers.create(flavor=flavor_id,
246 security_group = group_name,
250 except Exception, err:
255 def delete_instances(self, instance_name):
256 instances = self.driver.shell.nova_manager.servers.findall(name=instance_name)
257 security_group_manager = SecurityGroup(self.driver)
258 for instance in instances:
259 # deleate this instance's security groups
260 security_group = instance.metadata.get('security_groups', '')
262 # dont delete the default security group
263 if security_group != 'default':
264 security_group_manager.delete_security_group(security_group)
266 self.driver.shell.nova_manager.servers.delete(instance)
269 def stop_instances(self, instance_name):
270 instances = self.driver.shell.nova_manager.servers.findall(name=instance_name)
271 for instance in instances:
272 self.driver.shell.nova_manager.servers.pause(instance)
275 def update_instances(self, project_name):