7 from collections import defaultdict
8 from nova.exception import ImageNotFound
9 from nova.api.ec2.cloud import CloudController
10 from sfa.util.faults import SfaAPIError
11 from sfa.rspecs.rspec import RSpec
12 from sfa.rspecs.elements.hardware_type import HardwareType
13 from sfa.rspecs.elements.node import Node
14 from sfa.rspecs.elements.sliver import Sliver
15 from sfa.rspecs.elements.login import Login
16 from sfa.rspecs.elements.disk_image import DiskImage
17 from sfa.rspecs.elements.services import Services
18 from sfa.util.xrn import Xrn
19 from sfa.util.osxrn import OSXrn
20 from sfa.rspecs.version_manager import VersionManager
21 from sfa.openstack.image import ImageManager
22 from sfa.openstack.security_group import SecurityGroup
23 from sfa.util.sfalogging import logger
25 def instance_to_sliver(instance, slice_xrn=None):
27 # * instance.image_ref
28 # * instance.kernel_id
29 # * instance.ramdisk_id
30 import nova.db.sqlalchemy.models
34 if isinstance(instance, dict):
35 # this is an isntance type dict
36 name = instance['name']
37 type = instance['name']
38 elif isinstance(instance, nova.db.sqlalchemy.models.Instance):
39 # this is an object that describes a running instance
40 name = instance.display_name
41 type = instance.instance_type.name
43 raise SfaAPIError("instnace must be an instance_type dict or" + \
44 " a nova.db.sqlalchemy.models.Instance object")
46 xrn = Xrn(slice_xrn, 'slice')
47 sliver_id = xrn.get_sliver_id(instance.project_id, instance.hostname, instance.id)
49 sliver = Sliver({'slice_id': sliver_id,
56 def ec2_id(id=None, type=None):
61 ec2_id = CloudController.image_ec2_id(id, type)
67 def __init__(self, driver):
70 def get_rspec(self, slice_xrn=None, version=None, options={}):
71 version_manager = VersionManager()
72 version = version_manager.get_version(version)
74 rspec_version = version_manager._get_version(version.type, version.version, 'ad')
75 nodes = self.get_aggregate_nodes()
77 rspec_version = version_manager._get_version(version.type, version.version, 'manifest')
78 nodes = self.get_slice_nodes(slice_xrn)
79 rspec = RSpec(version=rspec_version, user_options=options)
80 rspec.version.add_nodes(nodes)
83 def get_slice_nodes(self, slice_xrn):
84 image_manager = ImageManager(self.driver)
85 name = OSXrn(xrn = slice_xrn).name
86 instances = self.driver.shell.db.instance_get_all_by_project(name)
88 for instance in instances:
90 xrn = OSXrn(instance.hostname, 'node')
91 rspec_node['component_id'] = xrn.urn
92 rspec_node['component_name'] = xrn.name
93 rspec_node['component_manager_id'] = Xrn(self.driver.hrn, 'authority+cm').get_urn()
94 sliver = instance_to_sliver(instance)
95 disk_image = image_manager.get_disk_image(instance.image_ref)
96 sliver['disk_images'] = [disk_image.to_rspec_object()]
97 rspec_node['slivers'] = [sliver]
98 rspec_nodes.append(rspec_node)
101 def get_aggregate_nodes(self):
103 zones = self.driver.shell.db.zone_get_all()
107 zones = [zone.name for zone in zones]
109 # available sliver/instance/vm types
110 instances = self.driver.shell.db.instance_type_get_all().values()
112 image_manager = ImageManager(self.driver)
113 disk_images = image_manager.get_available_disk_images()
114 disk_image_objects = [image.to_rspec_object() \
115 for image in disk_images]
119 xrn = OSXrn(zone, 'node')
120 rspec_node['component_id'] = xrn.urn
121 rspec_node['component_name'] = xrn.name
122 rspec_node['component_manager_id'] = Xrn(self.driver.hrn, 'authority+cm').get_urn()
123 rspec_node['exclusive'] = 'false'
124 rspec_node['hardware_types'] = [HardwareType({'name': 'plos-pc'}),
125 HardwareType({'name': 'pc'})]
127 for instance in instances:
128 sliver = instance_to_sliver(instance)
129 sliver['disk_images'] = disk_image_objects
130 slivers.append(sliver)
132 rspec_node['slivers'] = slivers
133 rspec_nodes.append(rspec_node)
138 def create_project(self, slicename, users, options={}):
140 Create the slice if it doesn't alredy exist. Create user
141 accounts that don't already exist
143 from nova.exception import ProjectNotFound, UserNotFound
145 username = Xrn(user['urn']).get_leaf()
147 self.driver.shell.auth_manager.get_user(username)
148 except nova.exception.UserNotFound:
149 self.driver.shell.auth_manager.create_user(username)
150 self.verify_user_keys(username, user['keys'], options)
153 slice = self.driver.shell.auth_manager.get_project(slicename)
154 except ProjectNotFound:
155 # assume that the first user is the project manager
156 proj_manager = Xrn(users[0]['urn']).get_leaf()
157 self.driver.shell.auth_manager.create_project(slicename, proj_manager)
159 def verify_user_keys(self, username, keys, options={}):
163 append = options.get('append', True)
164 existing_keys = self.driver.shell.db.key_pair_get_all_by_user(username)
165 existing_pub_keys = [key.public_key for key in existing_keys]
166 removed_pub_keys = set(existing_pub_keys).difference(keys)
167 added_pub_keys = set(keys).difference(existing_pub_keys)
170 for public_key in added_pub_keys:
172 key['user_id'] = username
173 key['name'] = username
174 key['public'] = public_key
175 self.driver.shell.db.key_pair_create(key)
179 for key in existing_keys:
180 if key.public_key in removed_pub_keys:
181 self.driver.shell.db.key_pair_destroy(username, key.name)
184 def create_security_group(self, group_name, fw_rules=[]):
185 security_group = SecurityGroup(self.driver)
186 security_group.create_security_group(group_name)
188 # open port 22 by default
189 security_group.add_rule_to_group(group_name,
191 cidr_ip = '0.0.0.0/0',
194 elif isinstance(fw_rules, list):
195 for rule in fw_rules:
196 security_group.add_rule_to_group(group_name,
197 protocol = rule.get('protocol'),
198 cidr_ip = rule.get('cidr_ip'),
199 port_range = rule.get('port_range'),
200 icmp_type_code = rule.get('icmp_type_code'))
202 def add_rule_to_security_group(self, group_name, **kwds):
203 security_group = SecurityGroup(self.driver)
204 security_group.add_rule_to_group(group_name=group_name,
205 protocol=kwds.get('protocol'),
206 cidr_ip =kwds.get('cidr_ip'),
207 icmp_type_code = kwds.get('icmp_type_code'))
210 def reserve_instance(self, image_id, kernel_id, ramdisk_id, \
211 instance_type, key_name, user_data, group_name):
212 conn = self.driver.euca_shell.get_euca_connection()
213 logger.info('Reserving an instance: image: %s, kernel: ' \
214 '%s, ramdisk: %s, type: %s, key: %s' % \
215 (image_id, kernel_id, ramdisk_id,
216 instance_type, key_name))
218 reservation = conn.run_instances(image_id=image_id,
220 ramdisk_id=ramdisk_id,
221 instance_type=instance_type,
223 user_data = user_data,
224 security_groups=[group_name])
226 #min_count=min_count,
227 #max_count=max_count,
229 except Exception, err:
233 def run_instances(self, slicename, rspec, keyname, pubkeys):
235 Create the security groups and instances.
237 # the default image to use for instnaces that dont
238 # explicitly request an image.
239 # Just choose the first available image for now.
240 image_manager = ImageManager(self.driver)
241 available_images = image_manager.get_available_disk_images()
242 default_image_id = None
243 default_aki_id = None
244 default_ari_id = None
245 default_image = available_images[0]
246 default_image_id = ec2_id(default_image.id, default_image.container_format)
247 default_aki_id = ec2_id(default_image.kernel_id, 'aki')
248 default_ari_id = ec2_id(default_image.ramdisk_id, 'ari')
250 # get requested slivers
252 user_data = "\n".join(pubkeys)
253 requested_instances = defaultdict(list)
254 # iterate over clouds/zones/nodes
255 for node in rspec.version.get_nodes_with_slivers():
256 instance_types = node.get('slivers', [])
257 if isinstance(instance_types, list):
258 # iterate over sliver/instance types
259 for instance_type in instance_types:
260 fw_rules = instance_type.get('fw_rules', [])
261 # Each sliver get's its own security group.
262 # Keep security group names unique by appending some random
264 random_name = "".join([random.choice(string.letters+string.digits)
266 group_name = slicename + random_name
267 self.create_security_group(group_name, fw_rules)
268 ami_id = default_image_id
269 aki_id = default_aki_id
270 ari_id = default_ari_id
271 req_image = instance_type.get('disk_images')
272 if req_image and isinstance(req_image, list):
273 req_image_name = req_image[0]['name']
274 disk_image = image_manager.get_disk_image(name=req_image_name)
276 ami_id = ec2_id(disk_image.id, disk_image.container_format)
277 aki_id = ec2_id(disk_image.kernel_id, 'aki')
278 ari_id = ec2_id(disk_image.ramdisk_id, 'ari')
280 self.reserve_instance(image_id=ami_id,
283 instance_type=instance_type['name'],
286 group_name=group_name)
289 def delete_instances(self, project_name):
290 instances = self.driver.shell.db.instance_get_all_by_project(project_name)
291 security_group_manager = SecurityGroup(self.driver)
292 for instance in instances:
293 # deleate this instance's security groups
294 for security_group in instance.security_groups:
295 # dont delete the default security group
296 if security_group.name != 'default':
297 security_group_manager.delete_security_group(security_group.name)
299 self.driver.shell.db.instance_destroy(instance.id)
302 def stop_instances(self, project_name):
303 instances = self.driver.shell.db.instance_get_all_by_project(project_name)
304 for instance in instances:
305 self.driver.shell.db.instance_stop(instance.id)
308 def update_instances(self, project_name):