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')
102 node_xrn = OSXrn('cloud', 'node')
104 node_xrn = OSXrn(xrn=node_xrn, 'node')
106 rspec_node['component_id'] = node_xrn.urn
107 rspec_node['component_name'] = node_xrn.name
108 rspec_node['component_manager_id'] = Xrn(self.driver.hrn, 'authority+cm').get_urn()
109 flavor = self.driver.shell.nova_manager.flavors.find(id=instance.flavor['id'])
110 sliver = instance_to_sliver(flavor)
111 rspec_node['slivers'] = [sliver]
112 image = self.driver.shell.image_manager.get_images(id=instance.image['id'])
113 if isinstance(image, list) and len(image) > 0:
115 disk_image = image_to_rspec_disk_image(image)
116 sliver['disk_image'] = [disk_image]
120 addresses = instance.addresses
121 for private_ip in addresses.get('private', []):
122 if_xrn = PlXrn(auth=self.driver.hrn,
123 interface='node%s:eth0' % (instance.hostId))
124 interface = Interface({'component_id': if_xrn.urn})
125 interface['ips'] = [{'address': private_ip['addr'],
126 #'netmask': private_ip['network'],
127 'type': private_ip['version']}]
128 interfaces.append(interface)
129 rspec_node['interfaces'] = interfaces
131 # slivers always provide the ssh service
132 rspec_node['services'] = []
133 for public_ip in addresses.get('public', []):
134 login = Login({'authentication': 'ssh-keys',
135 'hostname': public_ip['addr'],
136 'port':'22', 'username': 'root'})
137 service = Services({'login': login})
138 rspec_node['services'].append(service)
139 rspec_nodes.append(rspec_node)
142 def get_aggregate_nodes(self):
143 zones = self.get_availability_zones()
144 # available sliver/instance/vm types
145 instances = self.driver.shell.nova_manager.flavors.list()
146 if isinstance(instances, dict):
147 instances = instances.values()
149 images = self.driver.shell.image_manager.get_images_detailed()
150 disk_images = [image_to_rspec_disk_image(img) for img in images if img['container_format'] in ['ami', 'ovf']]
154 xrn = OSXrn(zone, type='node')
155 rspec_node['component_id'] = xrn.urn
156 rspec_node['component_name'] = xrn.name
157 rspec_node['component_manager_id'] = Xrn(self.driver.hrn, 'authority+cm').get_urn()
158 rspec_node['exclusive'] = 'false'
159 rspec_node['hardware_types'] = [HardwareType({'name': 'plos-pc'}),
160 HardwareType({'name': 'pc'})]
162 for instance in instances:
163 sliver = instance_to_sliver(instance)
164 sliver['disk_image'] = disk_images
165 slivers.append(sliver)
167 rspec_node['slivers'] = slivers
168 rspec_nodes.append(rspec_node)
173 def create_instance_key(self, slice_hrn, user):
174 slice_name = Xrn(slice_hrn).leaf
175 user_name = Xrn(user['urn']).leaf
176 key_name = "%s:%s" % (slice_name, user_name)
177 pubkey = user['keys'][0]
179 existing_keys = self.driver.shell.nova_manager.keypairs.findall(name=key_name)
180 for existing_key in existing_keys:
181 if existing_key.public_key != pubkey:
182 self.driver.shell.nova_manager.keypairs.delete(existing_key)
183 elif existing_key.public_key == pubkey:
187 self.driver.shell.nova_manager.keypairs.create(key_name, pubkey)
191 def create_security_group(self, slicename, fw_rules=[]):
192 # use default group by default
193 group_name = 'default'
194 if isinstance(fw_rules, list) and fw_rules:
195 # Each sliver get's its own security group.
196 # Keep security group names unique by appending some random
198 random_name = "".join([random.choice(string.letters+string.digits)
200 group_name = slicename + random_name
201 security_group = SecurityGroup(self.driver)
202 security_group.create_security_group(group_name)
203 for rule in fw_rules:
204 security_group.add_rule_to_group(group_name,
205 protocol = rule.get('protocol'),
206 cidr_ip = rule.get('cidr_ip'),
207 port_range = rule.get('port_range'),
208 icmp_type_code = rule.get('icmp_type_code'))
211 def add_rule_to_security_group(self, group_name, **kwds):
212 security_group = SecurityGroup(self.driver)
213 security_group.add_rule_to_group(group_name=group_name,
214 protocol=kwds.get('protocol'),
215 cidr_ip =kwds.get('cidr_ip'),
216 icmp_type_code = kwds.get('icmp_type_code'))
220 def run_instances(self, slicename, rspec, key_name, pubkeys):
221 #logger.debug('Reserving an instance: image: %s, flavor: ' \
222 # '%s, key: %s, name: %s' % \
223 # (image_id, flavor_id, key_name, slicename))
225 authorized_keys = "\n".join(pubkeys)
226 files = {'/root/.ssh/authorized_keys': authorized_keys}
228 requested_instances = defaultdict(list)
229 # iterate over clouds/zones/nodes
230 for node in rspec.version.get_nodes_with_slivers():
231 instances = node.get('slivers', [])
234 for instance in instances:
236 flavor_id = self.driver.shell.nova_manager.flavors.find(name=instance['name'])
237 image = instance.get('disk_image')
238 if image and isinstance(image, list):
240 image_id = self.driver.shell.nova_manager.images.find(name=image['name'])
241 fw_rules = instance.get('fw_rules', [])
242 group_name = self.create_security_group(slicename, fw_rules)
243 metadata['security_groups'] = group_name
244 if node.get('component_id'):
245 metadata['component_id'] = node['component_id']
247 self.driver.shell.nova_manager.servers.create(flavor=flavor_id,
250 security_group = group_name,
254 except Exception, err:
259 def delete_instances(self, instance_name):
260 instances = self.driver.shell.nova_manager.servers.findall(name=instance_name)
261 security_group_manager = SecurityGroup(self.driver)
262 for instance in instances:
263 # deleate this instance's security groups
264 security_group = instance.metadata.get('security_groups', '')
266 # dont delete the default security group
267 if security_group != 'default':
268 security_group_manager.delete_security_group(security_group)
270 self.driver.shell.nova_manager.servers.delete(instance)
273 def stop_instances(self, instance_name):
274 instances = self.driver.shell.nova_manager.servers.findall(name=instance_name)
275 for instance in instances:
276 self.driver.shell.nova_manager.servers.pause(instance)
279 def update_instances(self, project_name):