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.metatata.get('component_id')
101 node_xrn = OSXrn('cloud', 'node')
103 rspec_node['component_id'] = node_xrn.urn
104 rspec_node['component_name'] = node_xrn.name
105 rspec_node['component_manager_id'] = Xrn(self.driver.hrn, 'authority+cm').get_urn()
106 flavor = self.driver.shell.nova_manager.flavors.find(id=instance.flavor['id'])
107 sliver = instance_to_sliver(flavor)
108 rspec_node['slivers'] = [sliver]
109 image = self.driver.shell.image_manager.get_images(id=instance.image['id'])
110 if isinstance(image, list) and len(image) > 0:
112 disk_image = image_to_rspec_disk_image(image)
113 sliver['disk_image'] = [disk_image]
117 addresses = instance.addresses
118 for private_ip in addresses.get('private', []):
119 if_xrn = PlXrn(auth=self.driver.hrn,
120 interface='node%s:eth0' % (instance.hostId))
121 interface = Interface({'component_id': if_xrn.urn})
122 interface['ips'] = [{'address': private_ip['addr'],
123 #'netmask': private_ip['network'],
124 'type': private_ip['version']}]
125 interfaces.append(interface)
126 rspec_node['interfaces'] = interfaces
128 # slivers always provide the ssh service
129 rspec_node['services'] = []
130 for public_ip in addresses.get('public', []):
131 login = Login({'authentication': 'ssh-keys',
132 'hostname': public_ip['addr'],
133 'port':'22', 'username': 'root'})
134 service = Services({'login': login})
135 rspec_node['services'].append(service)
136 rspec_nodes.append(rspec_node)
139 def get_aggregate_nodes(self):
140 zones = self.get_availability_zones()
141 # available sliver/instance/vm types
142 instances = self.driver.shell.nova_manager.flavors.list()
143 if isinstance(instances, dict):
144 instances = instances.values()
146 images = self.driver.shell.image_manager.get_images_detailed()
147 disk_images = [image_to_rspec_disk_image(img) for img in images if img['container_format'] in ['ami', 'ovf']]
151 xrn = OSXrn(zone, type='node')
152 rspec_node['component_id'] = xrn.urn
153 rspec_node['component_name'] = xrn.name
154 rspec_node['component_manager_id'] = Xrn(self.driver.hrn, 'authority+cm').get_urn()
155 rspec_node['exclusive'] = 'false'
156 rspec_node['hardware_types'] = [HardwareType({'name': 'plos-pc'}),
157 HardwareType({'name': 'pc'})]
159 for instance in instances:
160 sliver = instance_to_sliver(instance)
161 sliver['disk_image'] = disk_images
162 slivers.append(sliver)
164 rspec_node['slivers'] = slivers
165 rspec_nodes.append(rspec_node)
170 def create_instance_key(self, slice_hrn, user):
171 key_name = "%s:%s" (slice_name, Xrn(user['urn']).get_hrn())
172 pubkey = user['keys'][0]
174 existing_keys = self.driver.shell.nova_manager.keypairs.findall(name=key_name)
175 for existing_key in existing_keys:
176 if existing_key.public_key != pubkey:
177 self.driver.shell.nova_manager.keypairs.delete(existing_key)
178 elif existing_key.public_key == pubkey:
182 self.driver.shll.nova_manager.keypairs.create(key_name, pubkey)
186 def create_security_group(self, slicename, fw_rules=[]):
187 # use default group by default
188 group_name = 'default'
189 if isinstance(fw_rules, list) and fw_rules:
190 # Each sliver get's its own security group.
191 # Keep security group names unique by appending some random
193 random_name = "".join([random.choice(string.letters+string.digits)
195 group_name = slicename + random_name
196 security_group = SecurityGroup(self.driver)
197 security_group.create_security_group(group_name)
198 for rule in fw_rules:
199 security_group.add_rule_to_group(group_name,
200 protocol = rule.get('protocol'),
201 cidr_ip = rule.get('cidr_ip'),
202 port_range = rule.get('port_range'),
203 icmp_type_code = rule.get('icmp_type_code'))
206 def add_rule_to_security_group(self, group_name, **kwds):
207 security_group = SecurityGroup(self.driver)
208 security_group.add_rule_to_group(group_name=group_name,
209 protocol=kwds.get('protocol'),
210 cidr_ip =kwds.get('cidr_ip'),
211 icmp_type_code = kwds.get('icmp_type_code'))
215 def run_instances(self, slicename, rspec, key_name, pubkeys):
216 #logger.debug('Reserving an instance: image: %s, flavor: ' \
217 # '%s, key: %s, name: %s' % \
218 # (image_id, flavor_id, key_name, slicename))
220 authorized_keys = "\n".join(pubkeys)
221 files = {'/root/.ssh/authorized_keys': authorized_keys}
223 requested_instances = defaultdict(list)
224 # iterate over clouds/zones/nodes
225 for node in rspec.version.get_nodes_with_slivers():
226 instances = node.get('slivers', [])
229 for instance in instances:
231 flavor_id = self.driver.shell.nova_manager.flavors.find(name=instance['name'])
232 image = instance.get('disk_image')
233 if image and isinstance(image, list):
235 image_id = self.driver.shell.nova_manager.images.find(name=image['name'])
236 fw_rules = instance.get('fw_rules', [])
237 group_name = self.create_security_group(slicename, fw_rules)
238 metadata['security_groups'] = [group_name]
239 metadata['component_id'] = node['component_id']
241 self.driver.shell.nova_manager.servers.create(flavor=flavor_id,
244 security_group = group_name,
248 except Exception, err:
253 def delete_instances(self, instance_name):
254 instances = self.driver.shell.nova_manager.servers.findall(name=instance_name)
255 security_group_manager = SecurityGroup(self.driver)
256 for instance in instances:
257 # deleate this instance's security groups
258 for security_group in instance.metadata.get('security_groups', []):
259 # dont delete the default security group
260 if security_group != 'default':
261 security_group_manager.delete_security_group(security_group)
263 self.driver.shell.nova_manager.servers.delete(instance)
266 def stop_instances(self, instance_name):
267 instances = self.driver.shell.nova_manager.servers.findall(name=instance_name)
268 for instance in instances:
269 self.driver.shell.nova_manager.servers.pause(instance)
272 def update_instances(self, project_name):