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):
88 zones = self.driver.shell.db.zone_get_all()
91 zones = self.driver.shell.db.dnsdomain_list()
96 zones = [zone.name for zone in zones]
99 def get_slice_nodes(self, slice_xrn):
100 image_manager = ImageManager(self.driver)
102 zones = self.get_availability_zones()
103 name = hrn_to_os_slicename(slice_xrn)
104 instances = self.driver.shell.db.instance_get_all_by_project(name)
106 for instance in instances:
109 for fixed_ip in instance.fixed_ips:
110 if_xrn = PlXrn(auth=self.driver.hrn,
111 interface='node%s:eth0' % (instance.hostname))
112 interface = Interface({'component_id': if_xrn.urn})
113 interface['ips'] = [{'address': fixed_ip['address'],
114 'netmask': fixed_ip['network'].netmask,
116 interface['floating_ips'] = []
117 for floating_ip in fixed_ip.floating_ips:
118 interface['floating_ips'].append(floating_ip.address)
119 interfaces.append(interface)
120 if instance.availability_zone:
121 node_xrn = OSXrn(instance.availability_zone, 'node')
123 node_xrn = OSXrn('cloud', 'node')
125 rspec_node['component_id'] = node_xrn.urn
126 rspec_node['component_name'] = node_xrn.name
127 rspec_node['component_manager_id'] = Xrn(self.driver.hrn, 'authority+cm').get_urn()
128 sliver = instance_to_sliver(instance)
129 disk_image = image_manager.get_disk_image(instance.image_ref)
130 sliver['disk_image'] = [disk_image.to_rspec_object()]
131 rspec_node['slivers'] = [sliver]
132 rspec_node['interfaces'] = interfaces
133 # slivers always provide the ssh service
134 rspec_node['services'] = []
135 for interface in interfaces:
136 if 'floating_ips' in interface:
137 for hostname in interface['floating_ips']:
138 login = Login({'authentication': 'ssh-keys',
139 'hostname': hostname,
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.db.instance_type_get_all()
150 if isinstance(instances, dict):
151 instances = instances.values()
153 image_manager = ImageManager(self.driver)
154 disk_images = image_manager.get_available_disk_images()
155 disk_image_objects = [image.to_rspec_object() \
156 for image in disk_images]
160 xrn = OSXrn(zone, 'node')
161 rspec_node['component_id'] = xrn.urn
162 rspec_node['component_name'] = xrn.name
163 rspec_node['component_manager_id'] = Xrn(self.driver.hrn, 'authority+cm').get_urn()
164 rspec_node['exclusive'] = 'false'
165 rspec_node['hardware_types'] = [HardwareType({'name': 'plos-pc'}),
166 HardwareType({'name': 'pc'})]
168 for instance in instances:
169 sliver = instance_to_sliver(instance)
170 sliver['disk_image'] = disk_image_objects
171 slivers.append(sliver)
173 rspec_node['slivers'] = slivers
174 rspec_nodes.append(rspec_node)
179 def create_project(self, slicename, users, options={}):
181 Create the slice if it doesn't alredy exist. Create user
182 accounts that don't already exist
184 from nova.exception import ProjectNotFound, UserNotFound
186 username = Xrn(user['urn']).get_leaf()
188 self.driver.shell.auth_manager.get_user(username)
190 self.driver.shell.auth_manager.create_user(username)
191 self.verify_user_keys(username, user['keys'], options)
194 slice = self.driver.shell.auth_manager.get_project(slicename)
195 except ProjectNotFound:
196 # assume that the first user is the project manager
197 proj_manager = Xrn(users[0]['urn']).get_leaf()
198 self.driver.shell.auth_manager.create_project(slicename, proj_manager)
200 def verify_user_keys(self, username, keys, options={}):
204 append = options.get('append', True)
205 existing_keys = self.driver.shell.db.key_pair_get_all_by_user(username)
206 existing_pub_keys = [key.public_key for key in existing_keys]
207 removed_pub_keys = set(existing_pub_keys).difference(keys)
208 added_pub_keys = set(keys).difference(existing_pub_keys)
211 for public_key in added_pub_keys:
213 key['user_id'] = username
214 key['name'] = username
215 key['public_key'] = public_key
216 self.driver.shell.db.key_pair_create(key)
220 for key in existing_keys:
221 if key.public_key in removed_pub_keys:
222 self.driver.shell.db.key_pair_destroy(username, key.name)
225 def create_security_group(self, slicename, fw_rules=[]):
226 # use default group by default
227 group_name = 'default'
228 if isinstance(fw_rules, list) and fw_rules:
229 # Each sliver get's its own security group.
230 # Keep security group names unique by appending some random
232 random_name = "".join([random.choice(string.letters+string.digits)
234 group_name = slicename + random_name
235 security_group = SecurityGroup(self.driver)
236 security_group.create_security_group(group_name)
237 for rule in fw_rules:
238 security_group.add_rule_to_group(group_name,
239 protocol = rule.get('protocol'),
240 cidr_ip = rule.get('cidr_ip'),
241 port_range = rule.get('port_range'),
242 icmp_type_code = rule.get('icmp_type_code'))
245 def add_rule_to_security_group(self, group_name, **kwds):
246 security_group = SecurityGroup(self.driver)
247 security_group.add_rule_to_group(group_name=group_name,
248 protocol=kwds.get('protocol'),
249 cidr_ip =kwds.get('cidr_ip'),
250 icmp_type_code = kwds.get('icmp_type_code'))
253 def reserve_instance(self, image_id, kernel_id, ramdisk_id, \
254 instance_type, key_name, user_data, group_name):
255 conn = self.driver.euca_shell.get_euca_connection()
256 logger.info('Reserving an instance: image: %s, kernel: ' \
257 '%s, ramdisk: %s, type: %s, key: %s' % \
258 (image_id, kernel_id, ramdisk_id,
259 instance_type, key_name))
261 reservation = conn.run_instances(image_id=image_id,
263 ramdisk_id=ramdisk_id,
264 instance_type=instance_type,
266 user_data = user_data,
267 security_groups=[group_name])
269 #min_count=min_count,
270 #max_count=max_count,
272 except Exception, err:
276 def run_instances(self, slicename, rspec, keyname, pubkeys):
278 Create the security groups and instances.
280 # the default image to use for instnaces that dont
281 # explicitly request an image.
282 # Just choose the first available image for now.
283 image_manager = ImageManager(self.driver)
284 available_images = image_manager.get_available_disk_images()
285 default_image_id = None
286 default_aki_id = None
287 default_ari_id = None
288 default_image = available_images[0]
289 default_image_id = ec2_id(default_image.id, default_image.container_format)
290 default_aki_id = ec2_id(default_image.kernel_id, 'aki')
291 default_ari_id = ec2_id(default_image.ramdisk_id, 'ari')
293 # get requested slivers
295 user_data = "\n".join(pubkeys)
296 requested_instances = defaultdict(list)
297 # iterate over clouds/zones/nodes
298 for node in rspec.version.get_nodes_with_slivers():
299 instance_types = node.get('slivers', [])
300 if isinstance(instance_types, list):
301 # iterate over sliver/instance types
302 for instance_type in instance_types:
303 fw_rules = instance_type.get('fw_rules', [])
304 group_name = self.create_security_group(slicename, fw_rules)
305 ami_id = default_image_id
306 aki_id = default_aki_id
307 ari_id = default_ari_id
308 req_image = instance_type.get('disk_image')
309 if req_image and isinstance(req_image, list):
310 req_image_name = req_image[0]['name']
311 disk_image = image_manager.get_disk_image(name=req_image_name)
313 ami_id = ec2_id(disk_image.id, disk_image.container_format)
314 aki_id = ec2_id(disk_image.kernel_id, 'aki')
315 ari_id = ec2_id(disk_image.ramdisk_id, 'ari')
317 self.reserve_instance(image_id=ami_id,
320 instance_type=instance_type['name'],
323 group_name=group_name)
326 def delete_instances(self, project_name):
327 instances = self.driver.shell.db.instance_get_all_by_project(project_name)
328 security_group_manager = SecurityGroup(self.driver)
329 for instance in instances:
330 # deleate this instance's security groups
331 for security_group in instance.security_groups:
332 # dont delete the default security group
333 if security_group.name != 'default':
334 security_group_manager.delete_security_group(security_group.name)
336 self.driver.shell.db.instance_destroy(instance.id)
339 def stop_instances(self, project_name):
340 instances = self.driver.shell.db.instance_get_all_by_project(project_name)
341 for instance in instances:
342 self.driver.shell.db.instance_stop(instance.id)
345 def update_instances(self, project_name):