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
17 from sfa.openstack.security_group import SecurityGroup
20 def instance_to_sliver(instance, slice_xrn=None):
22 # * instance.image_ref
23 # * instance.kernel_id
24 # * instance.ramdisk_id
25 import nova.db.sqlalchemy.models
29 if isinstance(instance, dict):
30 # this is an isntance type dict
31 name = instance['name']
32 type = instance['name']
33 elif isinstance(instance, nova.db.sqlalchemy.models.Instance):
34 # this is an object that describes a running instance
35 name = instance.display_name
36 type = instance.instance_type.name
38 raise SfaAPIError("instnace must be an instance_type dict or" + \
39 " a nova.db.sqlalchemy.models.Instance object")
41 xrn = Xrn(slice_xrn, 'slice')
42 sliver_id = xrn.get_sliver_id(instance.project_id, instance.hostname, instance.id)
44 sliver = Sliver({'slice_id': sliver_id,
46 'type': 'plos-' + type,
53 def __init__(self, driver):
56 def get_rspec(self, slice_xrn=None, version=None, options={}):
57 version_manager = VersionManager()
58 version = version_manager.get_version(version)
60 rspec_version = version_manager._get_version(version.type, version.version, 'ad')
61 nodes = self.get_aggregate_nodes()
63 rspec_version = version_manager._get_version(version.type, version.version, 'manifest')
64 nodes = self.get_slice_nodes(slice_xrn)
65 rspec = RSpec(version=rspec_version, user_options=options)
66 rspec.version.add_nodes(nodes)
69 def get_slice_nodes(self, slice_xrn):
70 image_manager = Image(self.driver)
71 name = OSXrn(xrn = slice_xrn).name
72 instances = self.driver.shell.db.instance_get_all_by_project(name)
74 for instance in instances:
76 xrn = OSXrn(instance.hostname, 'node')
77 rspec_node['component_id'] = xrn.urn
78 rspec_node['component_name'] = xrn.name
79 rspec_node['component_manager_id'] = Xrn(self.driver.hrn, 'authority+cm').get_urn()
80 sliver = instance_to_sliver(instance)
81 disk_image = image_manager.get_disk_image(instance.image_ref)
82 sliver['disk_images'] = [Image.disk_image_to_rspec_object(disk_image)]
83 rspec_node['slivers'] = [sliver]
84 rspec_nodes.append(rspec_node)
87 def get_aggregate_nodes(self):
89 zones = self.driver.shell.db.zone_get_all()
93 zones = [zone.name for zone in zones]
95 # available sliver/instance/vm types
96 instances = self.driver.shell.db.instance_type_get_all().values()
98 image_manager = Image(self.driver)
99 disk_images = image_manager.get_available_disk_images()
100 disk_image_objects = [Image.disk_image_to_rspec_object(image) \
101 for image in disk_images]
105 xrn = OSXrn(zone, 'node')
106 rspec_node['component_id'] = xrn.urn
107 rspec_node['component_name'] = xrn.name
108 rspec_node['component_manager_id'] = Xrn(self.driver.hrn, 'authority+cm').get_urn()
109 rspec_node['exclusive'] = 'false'
110 rspec_node['hardware_types'] = [HardwareType({'name': 'plos-pc'}),
111 HardwareType({'name': 'pc'})]
113 for instance in instances:
114 sliver = instance_to_sliver(instance)
115 sliver['disk_images'] = disk_image_objects
116 slivers.append(sliver)
118 rspec_node['slivers'] = slivers
119 rspec_nodes.append(rspec_node)
124 def create_project(self, slicename, users, options={}):
126 Create the slice if it doesn't alredy exist. Create user
127 accounts that don't already exist
129 import nova.exception.ProjectNotFound
131 slice = self.driver.shell.auth_manager.get_project(slicename)
132 except nova.exception.ProjectNotFound:
133 # assume that the first user is the project manager
134 proj_manager = Xrn(users[0]['urn']).get_leaf()
135 self.driver.shell.auth_manager.create_project(slicename, proj_manager)
138 username = Xrn(user['urn']).get_leaf()
140 self.driver.shell.auth_manager.get_user(username)
141 except nova.exception.UserNotFound:
142 self.driver.shell.auth_manager.create_user(username)
143 self.verify_user_keys(username, user['keys'], options)
145 def verify_user_keys(self, username, keys, options={}):
149 append = options.get('append', True)
150 existing_keys = self.driver.shell.db.key_pair_get_all_by_user(username)
151 existing_pub_keys = [key.public_key for key in existing_keys]
152 removed_pub_keys = set(existing_pub_keys).difference(keys)
153 added_pub_keys = set(keys).difference(existing_pub_keys)
156 for public_key in added_pub_keys:
158 key['user_id'] = username
159 key['name'] = username
160 key['public'] = public_key
161 self.driver.shell.db.key_pair_create(key)
165 for key in existing_keys:
166 if key.public_key in removed_pub_keys:
167 self.driver.shell.db.key_pair_destroy(username, key.name)
170 def create_security_group(self, group_name, fw_rules=[]):
171 security_group = SecurityGroup(self.driver)
172 security_group.create_security_group(group_name)
173 for rule in fw_rules:
174 security_group.add_rule_to_group(group_name,
175 protocol = rule.get('protocol'),
176 cidr_ip = rule.get('cidr_ip'),
177 port_range = rule.get('port_range'),
178 icmp_type_code = rule.get('icmp_type_code'))
180 def add_rule_to_security_group(self, group_name, **kwds):
181 security_group = SecurityGroup(self.driver)
182 security_group.add_rule_to_group(group_name=group_name,
183 protocol=kwds.get('protocol'),
184 cidr_ip =kwds.get('cidr_ip'),
185 icmp_type_code = kwds.get('icmp_type_code'))
188 def reserve_instance(self, image_id, kernel_id, ramdisk_id, \
189 instance_type, key_name, user_data):
190 conn = self.driver.euca_shell
191 logger.info('Reserving an instance: image: %s, kernel: ' + \
192 '%s, ramdisk: %s, type: %s, key: %s' % \
193 (image_id, kernel_id, ramdisk_id,
194 instance_type, key_name))
196 reservation = conn.run_instances(image_id=image_id,
198 ramdisk_id=ramdisk_id,
199 instance_type=instance_type,
201 user_data = user_data,
202 security_groups=group_names)
204 #min_count=min_count,
205 #max_count=max_count,
207 except EC2ResponseError, ec2RespError:
208 logger.log_exc(ec2RespError)
210 def run_instances(self, slicename, rspec, keyname, pubkeys):
212 Create the security groups and instances.
214 # the default image to use for instnaces that dont
215 # explicitly request an image.
216 # Just choose the first available image for now.
217 image_manager = Image(self.driver)
218 available_images = image_manager.get_available_disk_images()
219 default_image = image_manager.get_disk_images()[0]
220 default_ami_id = CloudController.image_ec2_id(default_image['ami']['id'])
221 default_aki_id = CloudController.image_ec2_id(default_image['aki']['id'])
222 default_ari_id = CloudController.image_ec2_id(default_image['ari']['id'])
224 # get requested slivers
226 requested_instances = defaultdict(list)
227 # iterate over clouds/zones/nodes
228 for node in rspec.version.get_nodes_with_slivers():
229 instance_types = node.get('slivers', [])
230 if isinstance(instance_types, list):
231 # iterate over sliver/instance types
232 for instance_type in instance_types:
233 fw_rules = instance_type.get('fw_rules', [])
234 # Each sliver get's its own security group.
235 # Keep security group names unique by appending some random
237 group_name = "_".join([slicename,
238 instance_type['name'],
239 base64.b64encode(os.urandom(6))])
240 self.create_security_group(group_name, fw_rules)
241 ami_id = default_ami_id
242 aki_id = default_aki_id
243 ari_id = default_ari_id
244 req_image = instance_type.get('disk_images')
245 if req_image and isinstance(req_image, list):
246 req_image_name = req_image[0]['name']
247 disk_image = image_manager.get_disk_image(name=req_image_name)
249 ami_id = CloudController.image_ec2_id(disk_image['ami']['id'])
250 aki_id = CloudController.image_ec2_id(disk_image['aki']['id'])
251 ari_id = CloudController.image_ec2_id(disk_image['ari']['id'])
253 self.reserve_instance(image_id=ami_id,
256 instance_type=instance_type['name'],
259 group_name=group_name)
262 def delete_instances(self, project_name):
263 instances = self.driver.shell.db.instance_get_all_by_project(project_name)
264 security_group_manager = SecurityGroup(self)
265 for instance in instances:
266 # deleate this instance's security groups
267 for security_group in instance.security_groups:
268 # dont delete the default security group
269 if security_group.name != 'default':
270 security_group_manager.delete_security_group(security_group.name)
272 self.driver.shell.db.instance_destroy(instance.id)
275 def stop_instances(self, project_name):
276 instances = self.driver.shell.db.instance_get_all_by_project(project_name)
277 for instance in instances:
278 self.driver.shell.db.instance_stop(instance.id)
281 def update_instances(self, project_name):