3 from nova.exception import ImageNotFound
4 from nova.api.ec2.cloud import CloudController
5 from sfa.util.faults import SfaAPIError
6 from sfa.rspecs.rspec import RSpec
7 from sfa.rspecs.elements.hardware_type import HardwareType
8 from sfa.rspecs.elements.node import Node
9 from sfa.rspecs.elements.sliver import Sliver
10 from sfa.rspecs.elements.login import Login
11 from sfa.rspecs.elements.disk_image import DiskImage
12 from sfa.rspecs.elements.services import Services
13 from sfa.util.xrn import Xrn
14 from sfa.util.osxrn import OSXrn
15 from sfa.rspecs.version_manager import VersionManager
16 from sfa.openstack.image import Image
19 def instance_to_sliver(instance, slice_xrn=None):
21 # * instance.image_ref
22 # * instance.kernel_id
23 # * instance.ramdisk_id
24 import nova.db.sqlalchemy.models
28 if isinstance(instance, dict):
29 # this is an isntance type dict
30 name = instance['name']
31 type = instance['name']
32 elif isinstance(instance, nova.db.sqlalchemy.models.Instance):
33 # this is an object that describes a running instance
34 name = instance.display_name
35 type = instance.instance_type.name
37 raise SfaAPIError("instnace must be an instance_type dict or" + \
38 " a nova.db.sqlalchemy.models.Instance object")
40 xrn = Xrn(slice_xrn, 'slice')
41 sliver_id = xrn.get_sliver_id(instance.project_id, instance.hostname, instance.id)
43 sliver = Sliver({'slice_id': sliver_id,
45 'type': 'plos-' + type,
52 def __init__(self, driver):
55 def get_rspec(self, slice_xrn=None, version=None, options={}):
56 version_manager = VersionManager()
57 version = version_manager.get_version(version)
59 rspec_version = version_manager._get_version(version.type, version.version, 'ad')
60 nodes = self.get_aggregate_nodes()
62 rspec_version = version_manager._get_version(version.type, version.version, 'manifest')
63 nodes = self.get_slice_nodes(slice_xrn)
64 rspec = RSpec(version=rspec_version, user_options=options)
65 rspec.version.add_nodes(nodes)
68 def get_slice_nodes(self, slice_xrn):
69 image_manager = Image(self.driver)
70 name = OSXrn(xrn = slice_xrn).name
71 instances = self.driver.shell.db.instance_get_all_by_project(name)
73 for instance in instances:
75 xrn = OSXrn(instance.hostname, 'node')
76 rspec_node['component_id'] = xrn.urn
77 rspec_node['component_name'] = xrn.name
78 rspec_node['component_manager_id'] = Xrn(self.driver.hrn, 'authority+cm').get_urn()
79 sliver = instance_to_sliver(instance)
80 disk_image = image_manager.get_disk_image(instance.image_ref)
81 sliver['disk_images'] = [Image.disk_image_to_rspec_object(disk_image)]
82 rspec_node['slivers'] = [sliver]
83 rspec_nodes.append(rspec_node)
86 def get_aggregate_nodes(self):
88 zones = self.driver.shell.db.zone_get_all()
92 zones = [zone.name for zone in zones]
94 # available sliver/instance/vm types
95 instances = self.driver.shell.db.instance_type_get_all().values()
97 image_manager = Image(self.driver)
98 disk_images = image_manager.get_available_disk_images()
99 disk_image_objects = [Image.disk_image_to_rspec_object(image) \
100 for image in disk_images]
104 xrn = OSXrn(zone, 'node')
105 rspec_node['component_id'] = xrn.urn
106 rspec_node['component_name'] = xrn.name
107 rspec_node['component_manager_id'] = Xrn(self.driver.hrn, 'authority+cm').get_urn()
108 rspec_node['exclusive'] = 'false'
109 rspec_node['hardware_types'] = [HardwareType({'name': 'plos-pc'}),
110 HardwareType({'name': 'pc'})]
112 for instance in instances:
113 sliver = instance_to_sliver(instance)
114 sliver['disk_images'] = disk_image_objects
115 slivers.append(sliver)
117 rspec_node['slivers'] = slivers
118 rspec_nodes.append(rspec_node)
123 def create_project(self, slicename, users, options={}):
125 Create the slice if it doesn't alredy exist. Create user
126 accounts that don't already exist
128 import nova.exception.ProjectNotFound
130 slice = self.driver.shell.auth_manager.get_project(slicename)
131 except nova.exception.ProjectNotFound:
132 # assume that the first user is the project manager
133 proj_manager = Xrn(users[0]['urn']).get_leaf()
134 self.driver.shell.auth_manager.create_project(slicename, proj_manager)
137 username = Xrn(user['urn']).get_leaf()
139 self.driver.shell.auth_manager.get_user(username)
140 except nova.exception.UserNotFound:
141 self.driver.shell.auth_manager.create_user(username)
142 self.verify_user_keys(username, user['keys'], options)
144 def verify_user_keys(self, username, keys, options={}):
148 append = options.get('append', True)
149 existing_keys = self.driver.shell.db.key_pair_get_all_by_user(username)
150 existing_pub_keys = [key.public_key for key in existing_keys]
151 removed_pub_keys = set(existing_pub_keys).difference(keys)
152 added_pub_keys = set(keys).difference(existing_pub_keys)
155 for public_key in added_pub_keys:
157 key['user_id'] = username
158 key['name'] = username
159 key['public'] = public_key
160 self.driver.shell.db.key_pair_create(key)
164 for key in existing_keys:
165 if key.public_key in removed_pub_keys:
166 self.driver.shell.db.key_pair_destroy(username, key.name)
169 def create_security_group(self, group_name, fw_rules=[]):
170 security_group = SecurityGroup(self.driver)
171 security_group.create_security_group(group_name)
172 for rule in fw_rules:
173 security_group.add_rule_to_group(group_name,
174 protocol = rule.get('protocol'),
175 cidr_ip = rule.get('cidr_ip'),
176 port_range = rule.get('port_range'),
177 icmp_type_code = rule.get('icmp_type_code'))
179 def add_rule_to_security_group(self, group_name, **kwds):
180 security_group = SecurityGroup(self.driver)
181 security_group.add_rule_to_group(group_name=group_name,
182 protocol=kwds.get('protocol'),
183 cidr_ip =kwds.get('cidr_ip'),
184 icmp_type_code = kwds.get('icmp_type_code'))
187 def reserve_instance(self, image_id, kernel_id, ramdisk_id, \
188 instance_type, key_name, user_data):
189 conn = self.driver.euca_shell
190 logger.info('Reserving an instance: image: %s, kernel: ' + \
191 '%s, ramdisk: %s, type: %s, key: %s' % \
192 (image_id, kernel_id, ramdisk_id,
193 instance_type, key_name))
195 reservation = conn.run_instances(image_id=image_id,
197 ramdisk_id=ramdisk_id,
198 instance_type=instance_type,
200 user_data = user_data,
201 security_groups=group_names)
203 #min_count=min_count,
204 #max_count=max_count,
206 except EC2ResponseError, ec2RespError:
207 logger.log_exc(ec2RespError)
209 def run_instances(self, slicename, rspec, keyname, pubkeys):
211 Create the security groups and instances.
213 # the default image to use for instnaces that dont
214 # explicitly request an image.
215 # Just choose the first available image for now.
216 image_manager = Image(self.driver)
217 available_images = image_manager.get_available_disk_images()
218 default_image = image_manager.get_disk_images()[0]
219 default_ami_id = CloudController.image_ec2_id(default_image['ami']['id'])
220 default_aki_id = CloudController.image_ec2_id(default_image['aki']['id'])
221 default_ari_id = CloudController.image_ec2_id(default_image['ari']['id'])
223 # get requested slivers
225 requested_instances = defaultdict(list)
226 # iterate over clouds/zones/nodes
227 for node in rspec.version.get_nodes_with_slivers():
228 instance_types = node.get('slivers', [])
229 if isinstance(instance_types, list):
230 # iterate over sliver/instance types
231 for instance_type in instance_types:
232 fw_rules = instance_type.get('fw_rules', [])
233 # Each sliver get's its own security group.
234 # Keep security group names unique by appending some random
236 group_name = "_".join([slicename,
237 instance_type['name'],
238 base64.b64encode(os.urandom(6))])
239 self.create_security_group(group_name, fw_rules)
240 ami_id = default_ami_id
241 aki_id = default_aki_id
242 ari_id = default_ari_id
243 req_image = instance_type.get('disk_images')
244 if req_image and isinstance(req_image, list):
245 req_image_name = req_image[0]['name']
246 disk_image = image_manager.get_disk_image(name=req_image_name)
248 ami_id = CloudController.image_ec2_id(disk_image['ami']['id'])
249 aki_id = CloudController.image_ec2_id(disk_image['aki']['id'])
250 ari_id = CloudController.image_ec2_id(disk_image['ari']['id'])
252 self.reserve_instance(image_id=ami_id,
255 instance_type=instance_type['name'],
258 group_name=group_name)
261 def delete_instances(self, project_name):
262 project = self.shell.project_get(project_name)
265 instances = self.driver.shell.db.instance_get_all_by_project(project_name)
266 for instance in instances:
267 self.driver.shell.db.instance_destroy(instance.instance_id)
270 def stop_instances(self, project_name):
271 instances = self.driver.shell.db.instance_get_all_by_project(project_name)
272 for instance in instances:
273 self.driver.shell.db.instance_stop(instance.instance_id)
276 def update_instances(self, project_name):