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 # update nova connection
88 tenant_name = OSXrn(xrn=slice_xrn, type='slice').get_tenant_name()
89 self.driver.shell.nova_manager.connect(tenant=tenant_name)
91 zones = self.get_availability_zones()
92 name = hrn_to_os_slicename(slice_xrn)
93 instances = self.driver.shell.nova_manager.servers.findall(name=name)
95 for instance in instances:
98 #TODO: find a way to look up an instances availability zone in essex
99 #if instance.availability_zone:
100 # node_xrn = OSXrn(instance.availability_zone, 'node')
102 # node_xrn = OSXrn('cloud', 'node')
103 node_xrn = instance.metadata.get('component_id')
106 node_xrn = OSXrn('cloud', type='node')
108 node_xrn = OSXrn(xrn=node_xrn, type='node')
110 rspec_node['component_id'] = node_xrn.urn
111 rspec_node['component_name'] = node_xrn.name
112 rspec_node['component_manager_id'] = Xrn(self.driver.hrn, 'authority+cm').get_urn()
113 flavor = self.driver.shell.nova_manager.flavors.find(id=instance.flavor['id'])
114 sliver = instance_to_sliver(flavor)
115 rspec_node['slivers'] = [sliver]
116 image = self.driver.shell.image_manager.get_images(id=instance.image['id'])
117 if isinstance(image, list) and len(image) > 0:
119 disk_image = image_to_rspec_disk_image(image)
120 sliver['disk_image'] = [disk_image]
124 addresses = instance.addresses
125 for private_ip in addresses.get('private', []):
126 if_xrn = PlXrn(auth=self.driver.hrn,
127 interface='node%s:eth0' % (instance.hostId))
128 interface = Interface({'component_id': if_xrn.urn})
129 interface['ips'] = [{'address': private_ip['addr'],
130 #'netmask': private_ip['network'],
131 'type': private_ip['version']}]
132 interfaces.append(interface)
133 rspec_node['interfaces'] = interfaces
135 # slivers always provide the ssh service
136 rspec_node['services'] = []
137 for public_ip in addresses.get('public', []):
138 login = Login({'authentication': 'ssh-keys',
139 'hostname': public_ip['addr'],
140 'port':'22', 'username': 'root'})
141 service = Services({'login': login})
142 rspec_node['services'].append(service)
143 rspec_nodes.append(rspec_node)
146 def get_aggregate_nodes(self):
147 zones = self.get_availability_zones()
148 # available sliver/instance/vm types
149 instances = self.driver.shell.nova_manager.flavors.list()
150 if isinstance(instances, dict):
151 instances = instances.values()
153 images = self.driver.shell.image_manager.get_images_detailed()
154 disk_images = [image_to_rspec_disk_image(img) for img in images if img['container_format'] in ['ami', 'ovf']]
158 xrn = OSXrn(zone, type='node')
159 rspec_node['component_id'] = xrn.urn
160 rspec_node['component_name'] = xrn.name
161 rspec_node['component_manager_id'] = Xrn(self.driver.hrn, 'authority+cm').get_urn()
162 rspec_node['exclusive'] = 'false'
163 rspec_node['hardware_types'] = [HardwareType({'name': 'plos-pc'}),
164 HardwareType({'name': 'pc'})]
166 for instance in instances:
167 sliver = instance_to_sliver(instance)
168 sliver['disk_image'] = disk_images
169 slivers.append(sliver)
171 rspec_node['slivers'] = slivers
172 rspec_nodes.append(rspec_node)
177 def create_tenant(self, tenant_name):
178 tenants = self.driver.shell.auth_manager.tenants.findall(name=tenant_name)
180 self.driver.shell.auth_manager.tenants.create(tenant_name, tenant_name)
181 tenant = self.driver.shell.auth_manager.tenants.find(name=tenant_name)
187 def create_instance_key(self, slice_hrn, user):
188 slice_name = Xrn(slice_hrn).leaf
189 user_name = Xrn(user['urn']).leaf
190 key_name = "%s_%s" % (slice_name, user_name)
191 pubkey = user['keys'][0]
193 existing_keys = self.driver.shell.nova_manager.keypairs.findall(name=key_name)
194 for existing_key in existing_keys:
195 if existing_key.public_key != pubkey:
196 self.driver.shell.nova_manager.keypairs.delete(existing_key)
197 elif existing_key.public_key == pubkey:
201 self.driver.shell.nova_manager.keypairs.create(key_name, pubkey)
205 def create_security_group(self, slicename, fw_rules=[]):
206 # use default group by default
207 group_name = 'default'
208 if isinstance(fw_rules, list) and fw_rules:
209 # Each sliver get's its own security group.
210 # Keep security group names unique by appending some random
212 random_name = "".join([random.choice(string.letters+string.digits)
214 group_name = slicename + random_name
215 security_group = SecurityGroup(self.driver)
216 security_group.create_security_group(group_name)
217 for rule in fw_rules:
218 security_group.add_rule_to_group(group_name,
219 protocol = rule.get('protocol'),
220 cidr_ip = rule.get('cidr_ip'),
221 port_range = rule.get('port_range'),
222 icmp_type_code = rule.get('icmp_type_code'))
225 def add_rule_to_security_group(self, group_name, **kwds):
226 security_group = SecurityGroup(self.driver)
227 security_group.add_rule_to_group(group_name=group_name,
228 protocol=kwds.get('protocol'),
229 cidr_ip =kwds.get('cidr_ip'),
230 icmp_type_code = kwds.get('icmp_type_code'))
234 def run_instances(self, instance_name, tenant_name, rspec, key_name, pubkeys):
235 #logger.debug('Reserving an instance: image: %s, flavor: ' \
236 # '%s, key: %s, name: %s' % \
237 # (image_id, flavor_id, key_name, slicename))
239 # make sure a tenant exists for this slice
240 tenant = self.create_tenant(tenant_name)
242 # add the sfa admin user to this tenant and update our nova client connection
243 # to use these credentials for the rest of this session. This emsures that the instances
244 # we create will be assigned to the correct tenant.
245 sfa_admin_user = self.driver.shell.auth_manager.users.find(name=self.driver.shell.auth_manager.opts['OS_USERNAME'])
246 user_role = self.driver.shell.auth_manager.roles.find(name='user')
247 admin_role = self.driver.shell.auth_manager.roles.find(name='admin')
248 self.driver.shell.auth_manager.roles.add_user_role(sfa_admin_user, admin_role, tenant)
249 self.driver.shell.auth_manager.roles.add_user_role(sfa_admin_user, user_role, tenant)
250 self.driver.shell.nova_manager.connect(tenant=tenant.name)
252 authorized_keys = "\n".join(pubkeys)
253 files = {'/root/.ssh/authorized_keys': authorized_keys}
255 requested_instances = defaultdict(list)
256 # iterate over clouds/zones/nodes
257 for node in rspec.version.get_nodes_with_slivers():
258 instances = node.get('slivers', [])
261 for instance in instances:
264 flavor_id = self.driver.shell.nova_manager.flavors.find(name=instance['name'])
265 image = instance.get('disk_image')
266 if image and isinstance(image, list):
268 image_id = self.driver.shell.nova_manager.images.find(name=image['name'])
269 fw_rules = instance.get('fw_rules', [])
270 group_name = self.create_security_group(instance_name, fw_rules)
271 metadata['security_groups'] = group_name
272 if node.get('component_id'):
273 metadata['component_id'] = node['component_id']
274 self.driver.shell.nova_manager.servers.create(flavor=flavor_id,
277 security_groups = [group_name],
281 except Exception, err:
286 def delete_instances(self, instance_name, tenant_name):
287 self.driver.shell.nova_manager.connect(tenant=tenant_name)
288 instances = self.driver.shell.nova_manager.servers.findall(name=instance_name)
289 security_group_manager = SecurityGroup(self.driver)
290 for instance in instances:
291 # deleate this instance's security groups
292 security_group = instance.metadata.get('security_groups', '')
294 # dont delete the default security group
295 if security_group != 'default':
296 security_group_manager.delete_security_group(security_group)
298 self.driver.shell.nova_manager.servers.delete(instance)
301 def stop_instances(self, instance_name, tenant_name):
302 self.driver.shell.nova_manager.connect(tenant=tenant_name)
303 instances = self.driver.shell.nova_manager.servers.findall(name=instance_name)
304 for instance in instances:
305 self.driver.shell.nova_manager.servers.pause(instance)
308 def update_instances(self, project_name):