+import os
+import socket
+import base64
+import string
+import random
+from collections import defaultdict
+from nova.exception import ImageNotFound
+from nova.api.ec2.cloud import CloudController
from sfa.util.faults import SfaAPIError
from sfa.rspecs.rspec import RSpec
from sfa.rspecs.elements.hardware_type import HardwareType
from sfa.rspecs.elements.node import Node
from sfa.rspecs.elements.sliver import Sliver
from sfa.rspecs.elements.login import Login
+from sfa.rspecs.elements.disk_image import DiskImage
from sfa.rspecs.elements.services import Services
+from sfa.rspecs.elements.interface import Interface
from sfa.util.xrn import Xrn
-from sfa.util.osxrn import OSXrn
+from sfa.planetlab.plxrn import PlXrn
+from sfa.openstack.osxrn import OSXrn, hrn_to_os_slicename
from sfa.rspecs.version_manager import VersionManager
+from sfa.openstack.security_group import SecurityGroup
+from sfa.server.threadmanager import ThreadManager
+from sfa.util.sfalogging import logger
+def pubkeys_to_user_data(pubkeys):
+ user_data = "#!/bin/bash\n\n"
+ for pubkey in pubkeys:
+ pubkey = pubkey.replace('\n', '')
+ user_data += "echo %s >> /root/.ssh/authorized_keys" % pubkey
+ user_data += "\n"
+ user_data += "echo >> /root/.ssh/authorized_keys"
+ user_data += "\n"
+ return user_data
+
+def instance_to_sliver(instance, slice_xrn=None):
+ sliver_id = None
+ if slice_xrn:
+ xrn = Xrn(slice_xrn, 'slice')
+ sliver_id = xrn.get_sliver_id(instance.project_id, instance.hostname, instance.id)
+
+ sliver = Sliver({'slice_id': sliver_id,
+ 'name': instance.name,
+ 'type': instance.name,
+ 'cpus': str(instance.vcpus),
+ 'memory': str(instance.ram),
+ 'storage': str(instance.disk)})
+ return sliver
+
+def image_to_rspec_disk_image(image):
+ img = DiskImage()
+ img['name'] = image['name']
+ img['description'] = image['name']
+ img['os'] = image['name']
+ img['version'] = image['name']
+ return img
+
class OSAggregate:
def __init__(self, driver):
self.driver = driver
- def instance_to_sliver(self, instance, slice_xrn=None):
- # should include?
- # * instance.image_ref
- # * instance.kernel_id
- # * instance.ramdisk_id
- import nova.db.sqlalchemy.models
- name=None
- type=None
- sliver_id = None
- if isinstance(instance, dict):
- # this is an isntance type dict
- name = instance['name']
- type = instance['name']
- elif isinstnace(instance, nova.db.sqlalchemy.models.Instance):
- # this is an object that describes a running instance
- name = instance.display_name
- type = instance.instance_type.name
- else:
- raise SfaAPIError("instnace must be an instance_type dict or" + \
- " a nova.db.sqlalchemy.models.Instance object")
- if slice_xrn:
- xrn = Xrn(slice_xrn, 'slice')
- sliver_id = xrn.get_sliver_id(instance.project_id, instance.hostname, instance.id)
-
- sliver = Sliver({'slice_id': sliver_id,
- 'name': name,
- 'type': 'plos-' + type,
- 'tags': []})
- return sliver
-
def get_rspec(self, slice_xrn=None, version=None, options={}):
version_manager = VersionManager()
version = version_manager.get_version(version)
rspec.version.add_nodes(nodes)
return rspec.toxml()
- def get_slice_nodes(self, slice_xrn):
- name = OSXrn(xrn = slice_xrn).name
- instances = self.driver.shell.db.instance_get_all_by_project(name)
- rspec_nodes = []
- for instance in instances:
- rspec_node = Node()
- xrn = OSXrn(instance.hostname, 'node')
- rspec_node['component_id'] = xrn.urn
- rspec_node['component_name'] = xrn.name
- rspec_node['component_manager_id'] = Xrn(self.driver.hrn, 'authority+cm').get_urn()
- sliver = self.instance_to_sliver(instance)
- rspec_node['slivers'] = [sliver]
- rspec_nodes.append(rspec_node)
- return rspec_nodes
+ def get_availability_zones(self):
+ # essex release
+ zones = self.driver.shell.nova_manager.dns_domains.domains()
- def get_aggregate_nodes(self):
-
- zones = self.driver.shell.db.zone_get_all()
if not zones:
zones = ['cloud']
else:
zones = [zone.name for zone in zones]
+ return zones
+
+ def get_slice_nodes(self, slice_xrn):
+ # update nova connection
+ tenant_name = OSXrn(xrn=slice_xrn, type='slice').get_tenant_name()
+ self.driver.shell.nova_manager.connect(tenant=tenant_name)
+
+ zones = self.get_availability_zones()
+ name = hrn_to_os_slicename(slice_xrn)
+ instances = self.driver.shell.nova_manager.servers.findall(name=name)
+ node_dict = {}
+ for instance in instances:
+ # determine node urn
+ node_xrn = instance.metadata.get('component_id')
+ if not node_xrn:
+ node_xrn = OSXrn('cloud', type='node')
+ else:
+ node_xrn = OSXrn(xrn=node_xrn, type='node')
+ if not node_xrn.urn in node_dict:
+ rspec_node = Node()
+ rspec_node['component_id'] = node_xrn.urn
+ rspec_node['component_name'] = node_xrn.name
+ rspec_node['component_manager_id'] = Xrn(self.driver.hrn, 'authority+cm').get_urn()
+ rspec_node['slivers'] = []
+ node_dict[node_xrn.urn] = rspec_node
+ else:
+ rspec_node = node_dict[node_xrn.urn]
+
+ if instance.metadata.get('client_id'):
+ rspec_node['client_id'] = instance.metadata.get('client_id')
+
+ flavor = self.driver.shell.nova_manager.flavors.find(id=instance.flavor['id'])
+ sliver = instance_to_sliver(flavor)
+ rspec_node['slivers'].append(sliver)
+ image = self.driver.shell.image_manager.get_images(id=instance.image['id'])
+ if isinstance(image, list) and len(image) > 0:
+ image = image[0]
+ disk_image = image_to_rspec_disk_image(image)
+ sliver['disk_image'] = [disk_image]
+
+ # build interfaces
+ rspec_node['services'] = []
+ rspec_node['interfaces'] = []
+ addresses = instance.addresses
+ # HACK: public ips are stored in the list of private, but
+ # this seems wrong. Assume pub ip is the last in the list of
+ # private ips until openstack bug is fixed.
+ if addresses.get('private'):
+ login = Login({'authentication': 'ssh-keys',
+ 'hostname': addresses.get('private')[-1]['addr'],
+ 'port':'22', 'username': 'root'})
+ service = Services({'login': login})
+ rspec_node['services'].append(service)
+
+ for private_ip in addresses.get('private', []):
+ if_xrn = PlXrn(auth=self.driver.hrn,
+ interface='node%s:eth0' % (instance.hostId))
+ interface = Interface({'component_id': if_xrn.urn})
+ interface['ips'] = [{'address': private_ip['addr'],
+ #'netmask': private_ip['network'],
+ 'type': private_ip['version']}]
+ rspec_node['interfaces'].append(interface)
+
+ # slivers always provide the ssh service
+ for public_ip in addresses.get('public', []):
+ login = Login({'authentication': 'ssh-keys',
+ 'hostname': public_ip['addr'],
+ 'port':'22', 'username': 'root'})
+ service = Services({'login': login})
+ rspec_node['services'].append(service)
+ rspec_nodes.append(rspec_node)
+ return node_dict.values()
+
+ def get_aggregate_nodes(self):
+ zones = self.get_availability_zones()
+ # available sliver/instance/vm types
+ instances = self.driver.shell.nova_manager.flavors.list()
+ if isinstance(instances, dict):
+ instances = instances.values()
+ # available images
+ images = self.driver.shell.image_manager.get_images_detailed()
+ disk_images = [image_to_rspec_disk_image(img) for img in images if img['container_format'] in ['ami', 'ovf']]
rspec_nodes = []
for zone in zones:
rspec_node = Node()
- xrn = OSXrn(zone, 'node')
+ xrn = OSXrn(zone, type='node')
rspec_node['component_id'] = xrn.urn
rspec_node['component_name'] = xrn.name
rspec_node['component_manager_id'] = Xrn(self.driver.hrn, 'authority+cm').get_urn()
rspec_node['exclusive'] = 'false'
rspec_node['hardware_types'] = [HardwareType({'name': 'plos-pc'}),
HardwareType({'name': 'pc'})]
- instances = self.driver.shell.db.instance_type_get_all().values()
- slivers = [self.instance_to_sliver(inst) for inst in instances]
+ slivers = []
+ for instance in instances:
+ sliver = instance_to_sliver(instance)
+ sliver['disk_image'] = disk_images
+ slivers.append(sliver)
+
rspec_node['slivers'] = slivers
rspec_nodes.append(rspec_node)
return rspec_nodes
- def verify_slice(self, slicename, users, options={}):
- """
- Create the slice if it doesn't alredy exist
- """
- import nova.exception.ProjectNotFound
- try:
- slice = self.driver.shell.auth_manager.get_project(slicename)
- except nova.exception.ProjectNotFound:
- # convert urns to user names
- usernames = [Xrn(user['urn']).get_leaf() for user in users]
- # assume that the first user is the project manager
- proj_manager = usernames[0]
- self.driver.shell.auth_manager.create_project(slicename, proj_manager)
-
- def verify_slice_users(self, slicename, users, options={}):
- """
- Add requested users to the specified slice.
- """
-
- # There doesn't seem to be an effcient way to
- # look up all the users of a project, so lets not
- # attempt to remove stale users . For now lets just
- # ensure that the specified users exist
- for user in users:
- username = Xrn(user['urn']).get_leaf()
- try:
- self.driver.shell.auth_manager.get_user(username)
- except nova.exception.UserNotFound:
- self.driver.shell.auth_manager.create_user(username)
- self.verify_user_keys(username, user['keys'], options)
-
- def verify_user_keys(self, username, keys, options={}):
- """
- Add requested keys.
- """
- append = options.get('append', True)
- existing_keys = self.driver.shell.db.key_pair_get_all_by_user(username)
- existing_pub_keys = [key.public_key for key in existing_keys]
- removed_pub_keys = set(existing_pub_keys).difference(keys)
- added_pub_keys = set(keys).difference(existing_pub_keys)
-
- # add new keys
- for public_key in added_pub_keys:
- key = {}
- key['user_id'] = username
- key['name'] = username
- key['public'] = public_key
- self.driver.shell.db.key_pair_create(key)
-
- # remove old keys
- if not append:
- for key in existing_keys:
- if key.public_key in removed_pub_keys:
- self.driver.shell.db.key_pair_destroy(username, key.name)
+ def create_tenant(self, tenant_name):
+ tenants = self.driver.shell.auth_manager.tenants.findall(name=tenant_name)
+ if not tenants:
+ self.driver.shell.auth_manager.tenants.create(tenant_name, tenant_name)
+ tenant = self.driver.shell.auth_manager.tenants.find(name=tenant_name)
+ else:
+ tenant = tenants[0]
+ return tenant
- def verify_instances(self, slicename, rspec):
- pass
+
+ def create_instance_key(self, slice_hrn, user):
+ slice_name = Xrn(slice_hrn).leaf
+ user_name = Xrn(user['urn']).leaf
+ key_name = "%s_%s" % (slice_name, user_name)
+ pubkey = user['keys'][0]
+ key_found = False
+ existing_keys = self.driver.shell.nova_manager.keypairs.findall(name=key_name)
+ for existing_key in existing_keys:
+ if existing_key.public_key != pubkey:
+ self.driver.shell.nova_manager.keypairs.delete(existing_key)
+ elif existing_key.public_key == pubkey:
+ key_found = True
+
+ if not key_found:
+ self.driver.shell.nova_manager.keypairs.create(key_name, pubkey)
+ return key_name
+
+
+ def create_security_group(self, slicename, fw_rules=[]):
+ # use default group by default
+ group_name = 'default'
+ if isinstance(fw_rules, list) and fw_rules:
+ # Each sliver get's its own security group.
+ # Keep security group names unique by appending some random
+ # characters on end.
+ random_name = "".join([random.choice(string.letters+string.digits)
+ for i in xrange(6)])
+ group_name = slicename + random_name
+ security_group = SecurityGroup(self.driver)
+ security_group.create_security_group(group_name)
+ for rule in fw_rules:
+ security_group.add_rule_to_group(group_name,
+ protocol = rule.get('protocol'),
+ cidr_ip = rule.get('cidr_ip'),
+ port_range = rule.get('port_range'),
+ icmp_type_code = rule.get('icmp_type_code'))
+ return group_name
+
+ def add_rule_to_security_group(self, group_name, **kwds):
+ security_group = SecurityGroup(self.driver)
+ security_group.add_rule_to_group(group_name=group_name,
+ protocol=kwds.get('protocol'),
+ cidr_ip =kwds.get('cidr_ip'),
+ icmp_type_code = kwds.get('icmp_type_code'))
+
+
+
+ def run_instances(self, instance_name, tenant_name, rspec, key_name, pubkeys):
+ #logger.debug('Reserving an instance: image: %s, flavor: ' \
+ # '%s, key: %s, name: %s' % \
+ # (image_id, flavor_id, key_name, slicename))
+
+ # make sure a tenant exists for this slice
+ tenant = self.create_tenant(tenant_name)
+
+ # add the sfa admin user to this tenant and update our nova client connection
+ # to use these credentials for the rest of this session. This emsures that the instances
+ # we create will be assigned to the correct tenant.
+ sfa_admin_user = self.driver.shell.auth_manager.users.find(name=self.driver.shell.auth_manager.opts['OS_USERNAME'])
+ user_role = self.driver.shell.auth_manager.roles.find(name='user')
+ admin_role = self.driver.shell.auth_manager.roles.find(name='admin')
+ self.driver.shell.auth_manager.roles.add_user_role(sfa_admin_user, admin_role, tenant)
+ self.driver.shell.auth_manager.roles.add_user_role(sfa_admin_user, user_role, tenant)
+ self.driver.shell.nova_manager.connect(tenant=tenant.name)
+
+ authorized_keys = "\n".join(pubkeys)
+ files = {'/root/.ssh/authorized_keys': authorized_keys}
+ rspec = RSpec(rspec)
+ requested_instances = defaultdict(list)
+ # iterate over clouds/zones/nodes
+ for node in rspec.version.get_nodes_with_slivers():
+ instances = node.get('slivers', [])
+ if not instances:
+ continue
+ for instance in instances:
+ try:
+ metadata = {}
+ flavor_id = self.driver.shell.nova_manager.flavors.find(name=instance['name'])
+ image = instance.get('disk_image')
+ if image and isinstance(image, list):
+ image = image[0]
+ image_id = self.driver.shell.nova_manager.images.find(name=image['name'])
+ fw_rules = instance.get('fw_rules', [])
+ group_name = self.create_security_group(instance_name, fw_rules)
+ metadata['security_groups'] = group_name
+ if node.get('component_id'):
+ metadata['component_id'] = node['component_id']
+ if node.get('client_id'):
+ metadata['client_id'] = node['client_id']
+ self.driver.shell.nova_manager.servers.create(flavor=flavor_id,
+ image=image_id,
+ key_name = key_name,
+ security_groups = [group_name],
+ files=files,
+ meta=metadata,
+ name=instance_name)
+ except Exception, err:
+ logger.log_exc(err)
+
+
+
+ def delete_instances(self, instance_name, tenant_name):
+
+ def _delete_security_group(instance):
+ security_group = instance.metadata.get('security_groups', '')
+ if security_group:
+ manager = SecurityGroup(self.driver)
+ timeout = 10.0 # wait a maximum of 10 seconds before forcing the security group delete
+ start_time = time.time()
+ instance_deleted = False
+ while instance_deleted == False and (time.time() - start_time) < timeout:
+ inst = self.driver.shell.nova_manager.servers.findall(id=instance.id)
+ if not inst:
+ instance_deleted = True
+ time.sleep(.5)
+ manager.delete_security_group(security_group)
+
+ thread_manager = ThreadManager()
+ self.driver.shell.nova_manager.connect(tenant=tenant_name)
+ instances = self.driver.shell.nova_manager.servers.findall(name=instance_name)
+ for instance in instances:
+ # destroy instance
+ self.driver.shell.nova_manager.servers.delete(instance)
+ # deleate this instance's security groups
+ thread_manager.run(_delete_security_group, instance)
+ return 1
+
+
+ def stop_instances(self, instance_name, tenant_name):
+ self.driver.shell.nova_manager.connect(tenant=tenant_name)
+ instances = self.driver.shell.nova_manager.servers.findall(name=instance_name)
+ for instance in instances:
+ self.driver.shell.nova_manager.servers.pause(instance)
+ return 1
+
+ def update_instances(self, project_name):
+ pass