5 from collections import defaultdict
6 from nova.exception import ImageNotFound
7 from nova.api.ec2.cloud import CloudController
8 from sfa.util.faults import SfaAPIError
9 from sfa.rspecs.rspec import RSpec
10 from sfa.rspecs.elements.hardware_type import HardwareType
11 from sfa.rspecs.elements.node import Node
12 from sfa.rspecs.elements.sliver import Sliver
13 from sfa.rspecs.elements.login import Login
14 from sfa.rspecs.elements.disk_image import DiskImage
15 from sfa.rspecs.elements.services import Services
16 from sfa.util.xrn import Xrn
17 from sfa.util.osxrn import OSXrn
18 from sfa.rspecs.version_manager import VersionManager
19 from sfa.openstack.image import Image
20 from sfa.openstack.security_group import SecurityGroup
21 from sfa.util.sfalogging import logger
23 def instance_to_sliver(instance, slice_xrn=None):
25 # * instance.image_ref
26 # * instance.kernel_id
27 # * instance.ramdisk_id
28 import nova.db.sqlalchemy.models
32 if isinstance(instance, dict):
33 # this is an isntance type dict
34 name = instance['name']
35 type = instance['name']
36 elif isinstance(instance, nova.db.sqlalchemy.models.Instance):
37 # this is an object that describes a running instance
38 name = instance.display_name
39 type = instance.instance_type.name
41 raise SfaAPIError("instnace must be an instance_type dict or" + \
42 " a nova.db.sqlalchemy.models.Instance object")
44 xrn = Xrn(slice_xrn, 'slice')
45 sliver_id = xrn.get_sliver_id(instance.project_id, instance.hostname, instance.id)
47 sliver = Sliver({'slice_id': sliver_id,
56 def __init__(self, driver):
59 def get_rspec(self, slice_xrn=None, version=None, options={}):
60 version_manager = VersionManager()
61 version = version_manager.get_version(version)
63 rspec_version = version_manager._get_version(version.type, version.version, 'ad')
64 nodes = self.get_aggregate_nodes()
66 rspec_version = version_manager._get_version(version.type, version.version, 'manifest')
67 nodes = self.get_slice_nodes(slice_xrn)
68 rspec = RSpec(version=rspec_version, user_options=options)
69 rspec.version.add_nodes(nodes)
72 def get_slice_nodes(self, slice_xrn):
73 image_manager = Image(self.driver)
74 name = OSXrn(xrn = slice_xrn).name
75 instances = self.driver.shell.db.instance_get_all_by_project(name)
77 for instance in instances:
79 xrn = OSXrn(instance.hostname, 'node')
80 rspec_node['component_id'] = xrn.urn
81 rspec_node['component_name'] = xrn.name
82 rspec_node['component_manager_id'] = Xrn(self.driver.hrn, 'authority+cm').get_urn()
83 sliver = instance_to_sliver(instance)
84 disk_image = image_manager.get_disk_image(instance.image_ref)
85 sliver['disk_images'] = [Image.disk_image_to_rspec_object(disk_image)]
86 rspec_node['slivers'] = [sliver]
87 rspec_nodes.append(rspec_node)
90 def get_aggregate_nodes(self):
92 zones = self.driver.shell.db.zone_get_all()
96 zones = [zone.name for zone in zones]
98 # available sliver/instance/vm types
99 instances = self.driver.shell.db.instance_type_get_all().values()
101 image_manager = Image(self.driver)
102 disk_images = image_manager.get_available_disk_images()
103 disk_image_objects = [Image.disk_image_to_rspec_object(image) \
104 for image in disk_images]
108 xrn = OSXrn(zone, 'node')
109 rspec_node['component_id'] = xrn.urn
110 rspec_node['component_name'] = xrn.name
111 rspec_node['component_manager_id'] = Xrn(self.driver.hrn, 'authority+cm').get_urn()
112 rspec_node['exclusive'] = 'false'
113 rspec_node['hardware_types'] = [HardwareType({'name': 'plos-pc'}),
114 HardwareType({'name': 'pc'})]
116 for instance in instances:
117 sliver = instance_to_sliver(instance)
118 sliver['disk_images'] = disk_image_objects
119 slivers.append(sliver)
121 rspec_node['slivers'] = slivers
122 rspec_nodes.append(rspec_node)
127 def create_project(self, slicename, users, options={}):
129 Create the slice if it doesn't alredy exist. Create user
130 accounts that don't already exist
132 from nova.exception import ProjectNotFound
134 slice = self.driver.shell.auth_manager.get_project(slicename)
135 except ProjectNotFound:
136 # assume that the first user is the project manager
137 proj_manager = Xrn(users[0]['urn']).get_leaf()
138 self.driver.shell.auth_manager.create_project(slicename, proj_manager)
141 username = Xrn(user['urn']).get_leaf()
143 self.driver.shell.auth_manager.get_user(username)
144 except nova.exception.UserNotFound:
145 self.driver.shell.auth_manager.create_user(username)
146 self.verify_user_keys(username, user['keys'], options)
148 def verify_user_keys(self, username, keys, options={}):
152 append = options.get('append', True)
153 existing_keys = self.driver.shell.db.key_pair_get_all_by_user(username)
154 existing_pub_keys = [key.public_key for key in existing_keys]
155 removed_pub_keys = set(existing_pub_keys).difference(keys)
156 added_pub_keys = set(keys).difference(existing_pub_keys)
159 for public_key in added_pub_keys:
161 key['user_id'] = username
162 key['name'] = username
163 key['public'] = public_key
164 self.driver.shell.db.key_pair_create(key)
168 for key in existing_keys:
169 if key.public_key in removed_pub_keys:
170 self.driver.shell.db.key_pair_destroy(username, key.name)
173 def create_security_group(self, group_name, fw_rules=[]):
174 security_group = SecurityGroup(self.driver)
175 security_group.create_security_group(group_name)
176 for rule in fw_rules:
177 security_group.add_rule_to_group(group_name,
178 protocol = rule.get('protocol'),
179 cidr_ip = rule.get('cidr_ip'),
180 port_range = rule.get('port_range'),
181 icmp_type_code = rule.get('icmp_type_code'))
183 def add_rule_to_security_group(self, group_name, **kwds):
184 security_group = SecurityGroup(self.driver)
185 security_group.add_rule_to_group(group_name=group_name,
186 protocol=kwds.get('protocol'),
187 cidr_ip =kwds.get('cidr_ip'),
188 icmp_type_code = kwds.get('icmp_type_code'))
191 def reserve_instance(self, image_id, kernel_id, ramdisk_id, \
192 instance_type, key_name, user_data, group_name):
193 conn = self.driver.euca_shell.get_euca_connection()
194 logger.info('Reserving an instance: image: %s, kernel: ' \
195 '%s, ramdisk: %s, type: %s, key: %s' % \
196 (image_id, kernel_id, ramdisk_id,
197 instance_type, key_name))
199 reservation = conn.run_instances(image_id=image_id,
201 ramdisk_id=ramdisk_id,
202 instance_type=instance_type,
204 user_data = user_data,
205 security_groups=[group_name])
207 #min_count=min_count,
208 #max_count=max_count,
210 except Exception, err:
213 def run_instances(self, slicename, rspec, keyname, pubkeys):
215 Create the security groups and instances.
217 # the default image to use for instnaces that dont
218 # explicitly request an image.
219 # Just choose the first available image for now.
220 image_manager = Image(self.driver)
221 available_images = image_manager.get_available_disk_images()
222 default_image = available_images[0]
223 default_ami_id = CloudController.image_ec2_id(default_image['ami']['id'], 'ami')
224 default_aki_id = CloudController.image_ec2_id(default_image['aki']['id'], 'aki')
225 default_ari_id = CloudController.image_ec2_id(default_image['ari']['id'], 'ari')
227 # get requested slivers
229 user_data = "\n".join(pubkeys)
230 requested_instances = defaultdict(list)
231 # iterate over clouds/zones/nodes
232 for node in rspec.version.get_nodes_with_slivers():
233 instance_types = node.get('slivers', [])
234 if isinstance(instance_types, list):
235 # iterate over sliver/instance types
236 for instance_type in instance_types:
237 fw_rules = instance_type.get('fw_rules', [])
238 # Each sliver get's its own security group.
239 # Keep security group names unique by appending some random
241 random_name = "".join([random.choice(string.letters+string.digits)
243 group_name = slicename + random_name
244 self.create_security_group(group_name, fw_rules)
245 ami_id = default_ami_id
246 aki_id = default_aki_id
247 ari_id = default_ari_id
248 req_image = instance_type.get('disk_images')
249 if req_image and isinstance(req_image, list):
250 req_image_name = req_image[0]['name']
251 disk_image = image_manager.get_disk_image(name=req_image_name)
253 ami_id = CloudController.image_ec2_id(disk_image['ami']['id'], 'ami')
254 aki_id = CloudController.image_ec2_id(disk_image['aki']['id'], 'aki')
255 ari_id = CloudController.image_ec2_id(disk_image['ari']['id'], 'ari')
257 self.reserve_instance(image_id=ami_id,
260 instance_type=instance_type['name'],
263 group_name=group_name)
266 def delete_instances(self, project_name):
267 instances = self.driver.shell.db.instance_get_all_by_project(project_name)
268 security_group_manager = SecurityGroup(self)
269 for instance in instances:
270 # deleate this instance's security groups
271 for security_group in instance.security_groups:
272 # dont delete the default security group
273 if security_group.name != 'default':
274 security_group_manager.delete_security_group(security_group.name)
276 self.driver.shell.db.instance_destroy(instance.id)
279 def stop_instances(self, project_name):
280 instances = self.driver.shell.db.instance_get_all_by_project(project_name)
281 for instance in instances:
282 self.driver.shell.db.instance_stop(instance.id)
285 def update_instances(self, project_name):