4 from collections import defaultdict
5 from nova.exception import ImageNotFound
6 from nova.api.ec2.cloud import CloudController
7 from sfa.util.faults import SfaAPIError
8 from sfa.rspecs.rspec import RSpec
9 from sfa.rspecs.elements.hardware_type import HardwareType
10 from sfa.rspecs.elements.node import Node
11 from sfa.rspecs.elements.sliver import Sliver
12 from sfa.rspecs.elements.login import Login
13 from sfa.rspecs.elements.disk_image import DiskImage
14 from sfa.rspecs.elements.services import Services
15 from sfa.util.xrn import Xrn
16 from sfa.util.osxrn import OSXrn
17 from sfa.rspecs.version_manager import VersionManager
18 from sfa.openstack.image import Image
19 from sfa.openstack.security_group import SecurityGroup
20 from sfa.util.sfalogging import logger
22 def instance_to_sliver(instance, slice_xrn=None):
24 # * instance.image_ref
25 # * instance.kernel_id
26 # * instance.ramdisk_id
27 import nova.db.sqlalchemy.models
31 if isinstance(instance, dict):
32 # this is an isntance type dict
33 name = instance['name']
34 type = instance['name']
35 elif isinstance(instance, nova.db.sqlalchemy.models.Instance):
36 # this is an object that describes a running instance
37 name = instance.display_name
38 type = instance.instance_type.name
40 raise SfaAPIError("instnace must be an instance_type dict or" + \
41 " a nova.db.sqlalchemy.models.Instance object")
43 xrn = Xrn(slice_xrn, 'slice')
44 sliver_id = xrn.get_sliver_id(instance.project_id, instance.hostname, instance.id)
46 sliver = Sliver({'slice_id': sliver_id,
48 'type': 'plos-' + type,
55 def __init__(self, driver):
58 def get_rspec(self, slice_xrn=None, version=None, options={}):
59 version_manager = VersionManager()
60 version = version_manager.get_version(version)
62 rspec_version = version_manager._get_version(version.type, version.version, 'ad')
63 nodes = self.get_aggregate_nodes()
65 rspec_version = version_manager._get_version(version.type, version.version, 'manifest')
66 nodes = self.get_slice_nodes(slice_xrn)
67 rspec = RSpec(version=rspec_version, user_options=options)
68 rspec.version.add_nodes(nodes)
71 def get_slice_nodes(self, slice_xrn):
72 image_manager = Image(self.driver)
73 name = OSXrn(xrn = slice_xrn).name
74 instances = self.driver.shell.db.instance_get_all_by_project(name)
76 for instance in instances:
78 xrn = OSXrn(instance.hostname, 'node')
79 rspec_node['component_id'] = xrn.urn
80 rspec_node['component_name'] = xrn.name
81 rspec_node['component_manager_id'] = Xrn(self.driver.hrn, 'authority+cm').get_urn()
82 sliver = instance_to_sliver(instance)
83 disk_image = image_manager.get_disk_image(instance.image_ref)
84 sliver['disk_images'] = [Image.disk_image_to_rspec_object(disk_image)]
85 rspec_node['slivers'] = [sliver]
86 rspec_nodes.append(rspec_node)
89 def get_aggregate_nodes(self):
91 zones = self.driver.shell.db.zone_get_all()
95 zones = [zone.name for zone in zones]
97 # available sliver/instance/vm types
98 instances = self.driver.shell.db.instance_type_get_all().values()
100 image_manager = Image(self.driver)
101 disk_images = image_manager.get_available_disk_images()
102 disk_image_objects = [Image.disk_image_to_rspec_object(image) \
103 for image in disk_images]
107 xrn = OSXrn(zone, 'node')
108 rspec_node['component_id'] = xrn.urn
109 rspec_node['component_name'] = xrn.name
110 rspec_node['component_manager_id'] = Xrn(self.driver.hrn, 'authority+cm').get_urn()
111 rspec_node['exclusive'] = 'false'
112 rspec_node['hardware_types'] = [HardwareType({'name': 'plos-pc'}),
113 HardwareType({'name': 'pc'})]
115 for instance in instances:
116 sliver = instance_to_sliver(instance)
117 sliver['disk_images'] = disk_image_objects
118 slivers.append(sliver)
120 rspec_node['slivers'] = slivers
121 rspec_nodes.append(rspec_node)
126 def create_project(self, slicename, users, options={}):
128 Create the slice if it doesn't alredy exist. Create user
129 accounts that don't already exist
131 from nova.exception import ProjectNotFound
133 slice = self.driver.shell.auth_manager.get_project(slicename)
134 except ProjectNotFound:
135 # assume that the first user is the project manager
136 proj_manager = Xrn(users[0]['urn']).get_leaf()
137 self.driver.shell.auth_manager.create_project(slicename, proj_manager)
140 username = Xrn(user['urn']).get_leaf()
142 self.driver.shell.auth_manager.get_user(username)
143 except nova.exception.UserNotFound:
144 self.driver.shell.auth_manager.create_user(username)
145 self.verify_user_keys(username, user['keys'], options)
147 def verify_user_keys(self, username, keys, options={}):
151 append = options.get('append', True)
152 existing_keys = self.driver.shell.db.key_pair_get_all_by_user(username)
153 existing_pub_keys = [key.public_key for key in existing_keys]
154 removed_pub_keys = set(existing_pub_keys).difference(keys)
155 added_pub_keys = set(keys).difference(existing_pub_keys)
158 for public_key in added_pub_keys:
160 key['user_id'] = username
161 key['name'] = username
162 key['public'] = public_key
163 self.driver.shell.db.key_pair_create(key)
167 for key in existing_keys:
168 if key.public_key in removed_pub_keys:
169 self.driver.shell.db.key_pair_destroy(username, key.name)
172 def create_security_group(self, group_name, fw_rules=[]):
173 security_group = SecurityGroup(self.driver)
174 security_group.create_security_group(group_name)
175 for rule in fw_rules:
176 security_group.add_rule_to_group(group_name,
177 protocol = rule.get('protocol'),
178 cidr_ip = rule.get('cidr_ip'),
179 port_range = rule.get('port_range'),
180 icmp_type_code = rule.get('icmp_type_code'))
182 def add_rule_to_security_group(self, group_name, **kwds):
183 security_group = SecurityGroup(self.driver)
184 security_group.add_rule_to_group(group_name=group_name,
185 protocol=kwds.get('protocol'),
186 cidr_ip =kwds.get('cidr_ip'),
187 icmp_type_code = kwds.get('icmp_type_code'))
190 def reserve_instance(self, image_id, kernel_id, ramdisk_id, \
191 instance_type, key_name, user_data, group_name):
192 conn = self.driver.euca_shell
193 logger.info('Reserving an instance: image: %s, kernel: ' + \
194 '%s, ramdisk: %s, type: %s, key: %s' % \
195 (image_id, kernel_id, ramdisk_id,
196 instance_type, key_name))
198 reservation = conn.run_instances(image_id=image_id,
200 ramdisk_id=ramdisk_id,
201 instance_type=instance_type,
203 user_data = user_data,
204 security_groups=group_name)
206 #min_count=min_count,
207 #max_count=max_count,
209 except EC2ResponseError, ec2RespError:
210 logger.log_exc(ec2RespError)
212 def run_instances(self, slicename, rspec, keyname, pubkeys):
214 Create the security groups and instances.
216 # the default image to use for instnaces that dont
217 # explicitly request an image.
218 # Just choose the first available image for now.
219 image_manager = Image(self.driver)
220 available_images = image_manager.get_available_disk_images()
221 default_image = available_images[0]
222 default_ami_id = CloudController.image_ec2_id(default_image['ami']['id'])
223 default_aki_id = CloudController.image_ec2_id(default_image['aki']['id'])
224 default_ari_id = CloudController.image_ec2_id(default_image['ari']['id'])
226 # get requested slivers
228 requested_instances = defaultdict(list)
229 # iterate over clouds/zones/nodes
230 for node in rspec.version.get_nodes_with_slivers():
231 instance_types = node.get('slivers', [])
232 if isinstance(instance_types, list):
233 # iterate over sliver/instance types
234 for instance_type in instance_types:
235 fw_rules = instance_type.get('fw_rules', [])
236 # Each sliver get's its own security group.
237 # Keep security group names unique by appending some random
239 group_name = "_".join([slicename,
240 instance_type['name'],
241 base64.b64encode(os.urandom(6))])
242 self.create_security_group(group_name, fw_rules)
243 ami_id = default_ami_id
244 aki_id = default_aki_id
245 ari_id = default_ari_id
246 req_image = instance_type.get('disk_images')
247 if req_image and isinstance(req_image, list):
248 req_image_name = req_image[0]['name']
249 disk_image = image_manager.get_disk_image(name=req_image_name)
251 ami_id = CloudController.image_ec2_id(disk_image['ami']['id'])
252 aki_id = CloudController.image_ec2_id(disk_image['aki']['id'])
253 ari_id = CloudController.image_ec2_id(disk_image['ari']['id'])
255 self.reserve_instance(image_id=ami_id,
258 instance_type=instance_type['name'],
261 group_name=group_name)
264 def delete_instances(self, project_name):
265 instances = self.driver.shell.db.instance_get_all_by_project(project_name)
266 security_group_manager = SecurityGroup(self)
267 for instance in instances:
268 # deleate this instance's security groups
269 for security_group in instance.security_groups:
270 # dont delete the default security group
271 if security_group.name != 'default':
272 security_group_manager.delete_security_group(security_group.name)
274 self.driver.shell.db.instance_destroy(instance.id)
277 def stop_instances(self, project_name):
278 instances = self.driver.shell.db.instance_get_all_by_project(project_name)
279 for instance in instances:
280 self.driver.shell.db.instance_stop(instance.id)
283 def update_instances(self, project_name):