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.image import ImageManager
24 from sfa.openstack.security_group import SecurityGroup
25 from sfa.util.sfalogging import logger
27 def instance_to_sliver(instance, slice_xrn=None):
29 # * instance.image_ref
30 # * instance.kernel_id
31 # * instance.ramdisk_id
32 import nova.db.sqlalchemy.models
36 if isinstance(instance, dict):
37 # this is an isntance type dict
38 name = instance['name']
39 type = instance['name']
40 elif isinstance(instance, nova.db.sqlalchemy.models.Instance):
41 # this is an object that describes a running instance
42 name = instance.display_name
43 type = instance.instance_type.name
45 raise SfaAPIError("instnace must be an instance_type dict or" + \
46 " a nova.db.sqlalchemy.models.Instance object")
48 xrn = Xrn(slice_xrn, 'slice')
49 sliver_id = xrn.get_sliver_id(instance.project_id, instance.hostname, instance.id)
51 sliver = Sliver({'slice_id': sliver_id,
58 def ec2_id(id=None, type=None):
63 ec2_id = CloudController.image_ec2_id(id, type)
69 def __init__(self, driver):
72 def get_rspec(self, slice_xrn=None, version=None, options={}):
73 version_manager = VersionManager()
74 version = version_manager.get_version(version)
76 rspec_version = version_manager._get_version(version.type, version.version, 'ad')
77 nodes = self.get_aggregate_nodes()
79 rspec_version = version_manager._get_version(version.type, version.version, 'manifest')
80 nodes = self.get_slice_nodes(slice_xrn)
81 rspec = RSpec(version=rspec_version, user_options=options)
82 rspec.version.add_nodes(nodes)
85 def get_availability_zones(self):
86 zones = self.driver.shell.db.zone_get_all()
90 zones = [zone.name for zone in zones]
93 def get_slice_nodes(self, slice_xrn):
94 image_manager = ImageManager(self.driver)
96 zones = self.get_availability_zones()
97 name = hrn_to_os_slicename(slice_xrn)
98 instances = self.driver.shell.db.instance_get_all_by_project(name)
100 for instance in instances:
103 for fixed_ip in instance.fixed_ips:
104 if_xrn = PlXrn(auth=self.driver.hrn,
105 interface='node%s:eth0' % (instance.hostname))
106 interface = Interface({'component_id': if_xrn.urn})
107 interface['ips'] = [{'address': fixed_ip['address'],
108 'netmask': fixed_ip['network'].netmask,
110 interfaces.append(interface)
111 if instance.availability_zone:
112 node_xrn = OSXrn(instance.availability_zone, 'node')
114 node_xrn = OSXrn('cloud', 'node')
116 rspec_node['component_id'] = node_xrn.urn
117 rspec_node['component_name'] = node_xrn.name
118 rspec_node['component_manager_id'] = Xrn(self.driver.hrn, 'authority+cm').get_urn()
119 sliver = instance_to_sliver(instance)
120 disk_image = image_manager.get_disk_image(instance.image_ref)
121 sliver['disk_image'] = [disk_image.to_rspec_object()]
122 rspec_node['slivers'] = [sliver]
123 rspec_node['interfaces'] = interfaces
124 # slivers always provide the ssh service
126 for interface in interfaces:
127 if 'ips' in interface and interface['ips'] and \
128 isinstance(interface['ips'], list):
129 if interface['ips'][0].get('address'):
130 hostname = interface['ips'][0].get('address')
132 login = Login({'authentication': 'ssh-keys',
133 'hostname': hostname,
134 'port':'22', 'username': 'root'})
135 service = Services({'login': login})
136 rspec_node['services'] = [service]
137 rspec_nodes.append(rspec_node)
140 def get_aggregate_nodes(self):
141 zones = self.get_availability_zones()
142 # available sliver/instance/vm types
143 instances = self.driver.shell.db.instance_type_get_all().values()
145 image_manager = ImageManager(self.driver)
146 disk_images = image_manager.get_available_disk_images()
147 disk_image_objects = [image.to_rspec_object() \
148 for image in disk_images]
152 xrn = OSXrn(zone, 'node')
153 rspec_node['component_id'] = xrn.urn
154 rspec_node['component_name'] = xrn.name
155 rspec_node['component_manager_id'] = Xrn(self.driver.hrn, 'authority+cm').get_urn()
156 rspec_node['exclusive'] = 'false'
157 rspec_node['hardware_types'] = [HardwareType({'name': 'plos-pc'}),
158 HardwareType({'name': 'pc'})]
160 for instance in instances:
161 sliver = instance_to_sliver(instance)
162 sliver['disk_image'] = disk_image_objects
163 slivers.append(sliver)
165 rspec_node['slivers'] = slivers
166 rspec_nodes.append(rspec_node)
171 def create_project(self, slicename, users, options={}):
173 Create the slice if it doesn't alredy exist. Create user
174 accounts that don't already exist
176 from nova.exception import ProjectNotFound, UserNotFound
178 username = Xrn(user['urn']).get_leaf()
180 self.driver.shell.auth_manager.get_user(username)
182 self.driver.shell.auth_manager.create_user(username)
183 self.verify_user_keys(username, user['keys'], options)
186 slice = self.driver.shell.auth_manager.get_project(slicename)
187 except ProjectNotFound:
188 # assume that the first user is the project manager
189 proj_manager = Xrn(users[0]['urn']).get_leaf()
190 self.driver.shell.auth_manager.create_project(slicename, proj_manager)
192 def verify_user_keys(self, username, keys, options={}):
196 append = options.get('append', True)
197 existing_keys = self.driver.shell.db.key_pair_get_all_by_user(username)
198 existing_pub_keys = [key.public_key for key in existing_keys]
199 removed_pub_keys = set(existing_pub_keys).difference(keys)
200 added_pub_keys = set(keys).difference(existing_pub_keys)
203 for public_key in added_pub_keys:
205 key['user_id'] = username
206 key['name'] = username
207 key['public_key'] = public_key
208 self.driver.shell.db.key_pair_create(key)
212 for key in existing_keys:
213 if key.public_key in removed_pub_keys:
214 self.driver.shell.db.key_pair_destroy(username, key.name)
217 def create_security_group(self, slicename, fw_rules=[]):
218 # use default group by default
219 group_name = 'default'
220 if isinstance(fw_rules, list) and fw_rules:
221 # Each sliver get's its own security group.
222 # Keep security group names unique by appending some random
224 random_name = "".join([random.choice(string.letters+string.digits)
226 group_name = slicename + random_name
227 security_group = SecurityGroup(self.driver)
228 security_group.create_security_group(group_name)
229 for rule in fw_rules:
230 security_group.add_rule_to_group(group_name,
231 protocol = rule.get('protocol'),
232 cidr_ip = rule.get('cidr_ip'),
233 port_range = rule.get('port_range'),
234 icmp_type_code = rule.get('icmp_type_code'))
237 def add_rule_to_security_group(self, group_name, **kwds):
238 security_group = SecurityGroup(self.driver)
239 security_group.add_rule_to_group(group_name=group_name,
240 protocol=kwds.get('protocol'),
241 cidr_ip =kwds.get('cidr_ip'),
242 icmp_type_code = kwds.get('icmp_type_code'))
245 def reserve_instance(self, image_id, kernel_id, ramdisk_id, \
246 instance_type, key_name, user_data, group_name):
247 conn = self.driver.euca_shell.get_euca_connection()
248 logger.info('Reserving an instance: image: %s, kernel: ' \
249 '%s, ramdisk: %s, type: %s, key: %s' % \
250 (image_id, kernel_id, ramdisk_id,
251 instance_type, key_name))
253 reservation = conn.run_instances(image_id=image_id,
255 ramdisk_id=ramdisk_id,
256 instance_type=instance_type,
258 user_data = user_data,
259 security_groups=[group_name])
261 #min_count=min_count,
262 #max_count=max_count,
264 except Exception, err:
268 def run_instances(self, slicename, rspec, keyname, pubkeys):
270 Create the security groups and instances.
272 # the default image to use for instnaces that dont
273 # explicitly request an image.
274 # Just choose the first available image for now.
275 image_manager = ImageManager(self.driver)
276 available_images = image_manager.get_available_disk_images()
277 default_image_id = None
278 default_aki_id = None
279 default_ari_id = None
280 default_image = available_images[0]
281 default_image_id = ec2_id(default_image.id, default_image.container_format)
282 default_aki_id = ec2_id(default_image.kernel_id, 'aki')
283 default_ari_id = ec2_id(default_image.ramdisk_id, 'ari')
285 # get requested slivers
287 user_data = "\n".join(pubkeys)
288 requested_instances = defaultdict(list)
289 # iterate over clouds/zones/nodes
290 for node in rspec.version.get_nodes_with_slivers():
291 instance_types = node.get('slivers', [])
292 if isinstance(instance_types, list):
293 # iterate over sliver/instance types
294 for instance_type in instance_types:
295 fw_rules = instance_type.get('fw_rules', [])
296 group_name = self.create_security_group(slicename, fw_rules)
297 ami_id = default_image_id
298 aki_id = default_aki_id
299 ari_id = default_ari_id
300 req_image = instance_type.get('disk_image')
301 if req_image and isinstance(req_image, list):
302 req_image_name = req_image[0]['name']
303 disk_image = image_manager.get_disk_image(name=req_image_name)
305 ami_id = ec2_id(disk_image.id, disk_image.container_format)
306 aki_id = ec2_id(disk_image.kernel_id, 'aki')
307 ari_id = ec2_id(disk_image.ramdisk_id, 'ari')
309 self.reserve_instance(image_id=ami_id,
312 instance_type=instance_type['name'],
315 group_name=group_name)
318 def delete_instances(self, project_name):
319 instances = self.driver.shell.db.instance_get_all_by_project(project_name)
320 security_group_manager = SecurityGroup(self.driver)
321 for instance in instances:
322 # deleate this instance's security groups
323 for security_group in instance.security_groups:
324 # dont delete the default security group
325 if security_group.name != 'default':
326 security_group_manager.delete_security_group(security_group.name)
328 self.driver.shell.db.instance_destroy(instance.id)
331 def stop_instances(self, project_name):
332 instances = self.driver.shell.db.instance_get_all_by_project(project_name)
333 for instance in instances:
334 self.driver.shell.db.instance_stop(instance.id)
337 def update_instances(self, project_name):