1 from nova.exception import ImageNotFound
2 from nova.api.ec2.cloud import CloudController
3 from sfa.util.faults import SfaAPIError
4 from sfa.rspecs.rspec import RSpec
5 from sfa.rspecs.elements.hardware_type import HardwareType
6 from sfa.rspecs.elements.node import Node
7 from sfa.rspecs.elements.sliver import Sliver
8 from sfa.rspecs.elements.login import Login
9 from sfa.rspecs.elements.disk_image import DiskImage
10 from sfa.rspecs.elements.services import Services
11 from sfa.util.xrn import Xrn
12 from sfa.util.osxrn import OSXrn
13 from sfa.rspecs.version_manager import VersionManager
14 from sfa.openstack.image import Image
17 def instance_to_sliver(instance, slice_xrn=None):
19 # * instance.image_ref
20 # * instance.kernel_id
21 # * instance.ramdisk_id
22 import nova.db.sqlalchemy.models
26 if isinstance(instance, dict):
27 # this is an isntance type dict
28 name = instance['name']
29 type = instance['name']
30 elif isinstance(instance, nova.db.sqlalchemy.models.Instance):
31 # this is an object that describes a running instance
32 name = instance.display_name
33 type = instance.instance_type.name
35 raise SfaAPIError("instnace must be an instance_type dict or" + \
36 " a nova.db.sqlalchemy.models.Instance object")
38 xrn = Xrn(slice_xrn, 'slice')
39 sliver_id = xrn.get_sliver_id(instance.project_id, instance.hostname, instance.id)
41 sliver = Sliver({'slice_id': sliver_id,
43 'type': 'plos-' + type,
50 def __init__(self, driver):
53 def get_rspec(self, slice_xrn=None, version=None, options={}):
54 version_manager = VersionManager()
55 version = version_manager.get_version(version)
57 rspec_version = version_manager._get_version(version.type, version.version, 'ad')
58 nodes = self.get_aggregate_nodes()
60 rspec_version = version_manager._get_version(version.type, version.version, 'manifest')
61 nodes = self.get_slice_nodes(slice_xrn)
62 rspec = RSpec(version=rspec_version, user_options=options)
63 rspec.version.add_nodes(nodes)
66 def get_slice_nodes(self, slice_xrn):
67 image_manager = Image(self.driver)
68 name = OSXrn(xrn = slice_xrn).name
69 instances = self.driver.shell.db.instance_get_all_by_project(name)
71 for instance in instances:
73 xrn = OSXrn(instance.hostname, 'node')
74 rspec_node['component_id'] = xrn.urn
75 rspec_node['component_name'] = xrn.name
76 rspec_node['component_manager_id'] = Xrn(self.driver.hrn, 'authority+cm').get_urn()
77 sliver = instance_to_sliver(instance)
78 disk_image = image_manager.get_disk_image(instance.image_ref)
79 sliver['disk_images'] = [Image.disk_image_to_rspec_object(disk_image)]
80 rspec_node['slivers'] = [sliver]
81 rspec_nodes.append(rspec_node)
84 def get_aggregate_nodes(self):
86 zones = self.driver.shell.db.zone_get_all()
90 zones = [zone.name for zone in zones]
92 # available sliver/instance/vm types
93 instances = self.driver.shell.db.instance_type_get_all().values()
95 image_manager = Image(self.driver)
96 disk_images = image_manager.get_available_disk_images()
97 disk_image_objects = [Image.disk_image_to_rspec_object(image) \
98 for image in disk_images]
102 xrn = OSXrn(zone, 'node')
103 rspec_node['component_id'] = xrn.urn
104 rspec_node['component_name'] = xrn.name
105 rspec_node['component_manager_id'] = Xrn(self.driver.hrn, 'authority+cm').get_urn()
106 rspec_node['exclusive'] = 'false'
107 rspec_node['hardware_types'] = [HardwareType({'name': 'plos-pc'}),
108 HardwareType({'name': 'pc'})]
110 for instance in instances:
111 sliver = instance_to_sliver(instance)
112 sliver['disk_images'] = disk_image_objects
113 slivers.append(sliver)
115 rspec_node['slivers'] = slivers
116 rspec_nodes.append(rspec_node)
121 def create_project(self, slicename, users, options={}):
123 Create the slice if it doesn't alredy exist. Create user
124 accounts that don't already exist
126 import nova.exception.ProjectNotFound
128 slice = self.driver.shell.auth_manager.get_project(slicename)
129 except nova.exception.ProjectNotFound:
130 # assume that the first user is the project manager
131 proj_manager = Xrn(users[0]['urn']).get_leaf()
132 self.driver.shell.auth_manager.create_project(slicename, proj_manager)
135 username = Xrn(user['urn']).get_leaf()
137 self.driver.shell.auth_manager.get_user(username)
138 except nova.exception.UserNotFound:
139 self.driver.shell.auth_manager.create_user(username)
140 self.verify_user_keys(username, user['keys'], options)
142 def verify_user_keys(self, username, keys, options={}):
146 append = options.get('append', True)
147 existing_keys = self.driver.shell.db.key_pair_get_all_by_user(username)
148 existing_pub_keys = [key.public_key for key in existing_keys]
149 removed_pub_keys = set(existing_pub_keys).difference(keys)
150 added_pub_keys = set(keys).difference(existing_pub_keys)
153 for public_key in added_pub_keys:
155 key['user_id'] = username
156 key['name'] = username
157 key['public'] = public_key
158 self.driver.shell.db.key_pair_create(key)
162 for key in existing_keys:
163 if key.public_key in removed_pub_keys:
164 self.driver.shell.db.key_pair_destroy(username, key.name)
167 def create_security_group(self, slicename, fw_rules):
168 group_name = slicename
169 security_group = SecurityGroup(self.driver)
170 security_group.create_security_group(group_name)
171 for rule in fw_rules:
172 security_group.add_rule_to_group(group_name, rule.get('protocol'),
174 rule.get('port_range'),
175 rule.get('icmp_type_code'))
177 def add_rule_to_security_group(self, group_name, **kwds):
178 security_group = SecurityGroup(self.driver)
179 security_group.add_rule_to_group(group_name=group_name,
180 protocol=kwds.get('protocol'),
181 cidr_ip =kwds.get('cidr_ip'),
182 icmp_type_code = kwds.get('icmp_type_code'))
185 def reserve_instance(self, image_id, kernel_id, ramdisk_id, \
186 instance_type, key_name, user_data):
187 conn = self.driver.euca_shell
188 logger.info('Reserving an instance: image: %s, kernel: ' + \
189 '%s, ramdisk: %s, type: %s, key: %s' % \
190 (image_id, kernel_id, ramdisk_id,
191 instance_type, key_name))
193 reservation = conn.run_instances(image_id=image_id,
195 ramdisk_id=ramdisk_id,
196 instance_type=instance_type,
198 user_data = user_data,
199 security_groups=group_names)
201 #min_count=min_count,
202 #max_count=max_count,
204 except EC2ResponseError, ec2RespError:
205 logger.log_exc(ec2RespError)
207 def run_instances(self, slicename, rspec, keyname, pubkeys):
209 Create the security groups and instances.
211 # the default image to use for instnaces that dont
212 # explicitly request an image.
213 # Just choose the first available image for now.
214 image_manager = Image(self.driver)
215 available_images = image_manager.get_available_disk_images()
216 default_image = image_manager.get_disk_images()[0]
217 default_ami_id = CloudController.image_ec2_id(default_image['ami']['id'])
218 default_aki_id = CloudController.image_ec2_id(default_image['aki']['id'])
219 default_ari_id = CloudController.image_ec2_id(default_image['ari']['id'])
221 # get requested slivers
223 requested_instances = defaultdict(list)
224 # iterate over clouds/zones/nodes
225 for node in rspec.version.get_nodes_with_slivers():
226 instance_types = node.get('slivers', [])
227 if isinstance(instance_types, list):
228 # iterate over sliver/instance types
229 for instance_type in instance_types:
230 group_name = self.create_security_group(slicename, instance_type.get('fw_rules', []))
231 ami_id = default_ami_id
232 aki_id = default_aki_id
233 ari_id = default_ari_id
234 req_image = instance_type.get('disk_images')
235 if req_image and isinstance(req_image, list):
236 req_image_name = req_image[0]['name']
237 disk_image = image_manager.get_disk_image(name=req_image_name)
239 ami_id = CloudController.image_ec2_id(disk_image['ami']['id'])
240 aki_id = CloudController.image_ec2_id(disk_image['aki']['id'])
241 ari_id = CloudController.image_ec2_id(disk_image['ari']['id'])
243 self.reserve_instance(image_id=ami_id,
246 instance_type=instance_type['name'],
249 group_name=group_name)