-import base64
+import os
+import socket
+import base64
+import string
+import random
+import time
+from collections import defaultdict
from nova.exception import ImageNotFound
from nova.api.ec2.cloud import CloudController
-from sfa.util.faults import SfaAPIError
+from sfa.util.faults import SfaAPIError, InvalidRSpec
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.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.rspecs.elements.fw_rule import FWRule
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.image import Image
+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):
- # 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 isinstance(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': []})
+ sliver = Sliver({'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):
rspec.version.add_nodes(nodes)
return rspec.toxml()
- def get_slice_nodes(self, slice_xrn):
- image_manager = Image(self.driver)
- 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 = instance_to_sliver(instance)
- disk_image = image_manager.get_disk_image(instance.image_ref)
- sliver['disk_images'] = [Image.disk_image_to_rspec_object(disk_image)]
- 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 instance_to_rspec_node(self, slice_xrn, instance):
+ # 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')
+
+ 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()
+ if instance.metadata.get('client_id'):
+ rspec_node['client_id'] = instance.metadata.get('client_id')
+
+ # get sliver details
+ sliver_xrn = OSXrn(xrn=slice_xrn, type='slice', id=instance.id)
+ rspec_node['sliver_id'] = sliver_xrn.get_urn()
+ flavor = self.driver.shell.nova_manager.flavors.find(id=instance.flavor['id'])
+ sliver = instance_to_sliver(flavor)
+ # get firewall rules
+ fw_rules = []
+ group_name = instance.metadata.get('security_groups')
+ if group_name:
+ group = self.driver.shell.nova_manager.security_groups.find(name=group_name)
+ for rule in group.rules:
+ port_range ="%s:%s" % (rule['from_port'], rule['to_port'])
+ fw_rule = FWRule({'protocol': rule['ip_protocol'],
+ 'port_range': port_range,
+ 'cidr_ip': rule['ip_range']['cidr']})
+ fw_rules.append(fw_rule)
+ sliver['fw_rules'] = fw_rules
+ rspec_node['slivers']= [sliver]
+ # get disk image
+ 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]
+
+ # get 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' % (instance.hostId))
+ if_client_id = Xrn(if_xrn.urn, type='interface', id="eth%s" %if_index).urn
+ if_sliver_id = Xrn(rspec_node['sliver_id'], type='slice', id="eth%s" %if_index).urn
+ interface = Interface({'component_id': if_xrn.urn,
+ 'client_id': if_client_id,
+ 'sliver_id': if_sliver_id})
+ interface['ips'] = [{'address': private_ip['addr'],
+ #'netmask': private_ip['network'],
+ 'type': 'ipv%s' % str(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)
+ return rspec_node
+
+ 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)
+ rspec_nodes = []
+ for instance in instances:
+ rspec_nodes.append(self.instance_to_rspec_node(slice_xrn, instance))
+ return rspec_nodes
+ def get_aggregate_nodes(self):
+ zones = self.get_availability_zones()
# available sliver/instance/vm types
- instances = self.driver.shell.db.instance_type_get_all().values()
+ instances = self.driver.shell.nova_manager.flavors.list()
+ if isinstance(instances, dict):
+ instances = instances.values()
# available images
- image_manager = Image(self.driver)
- disk_images = image_manager.get_available_disk_images()
- disk_image_objects = [Image.disk_image_to_rspec_object(image) \
- for image in disk_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()
slivers = []
for instance in instances:
sliver = instance_to_sliver(instance)
- sliver['disk_images'] = disk_image_objects
+ sliver['disk_image'] = disk_images
slivers.append(sliver)
rspec_node['slivers'] = slivers
return rspec_nodes
- def create_project(self, slicename, users, options={}):
- """
- Create the slice if it doesn't alredy exist. Create user
- accounts that don't already exist
- """
- import nova.exception.ProjectNotFound
- try:
- slice = self.driver.shell.auth_manager.get_project(slicename)
- except nova.exception.ProjectNotFound:
- # assume that the first user is the project manager
- proj_manager = Xrn(users[0]['urn']).get_leaf()
- self.driver.shell.auth_manager.create_project(slicename, proj_manager)
-
- 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)
- pubkeys = []
- # 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_security_group(self, group_name, fw_rules=[]):
- 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,
+ 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 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'))
+ # Open ICMP by default
+ security_group.add_rule_to_group(group_name,
+ protocol = "icmp",
+ cidr_ip = "0.0.0.0/0",
+ icmp_type_code = "-1:-1")
+ return group_name
def add_rule_to_security_group(self, group_name, **kwds):
security_group = SecurityGroup(self.driver)
icmp_type_code = kwds.get('icmp_type_code'))
- def reserve_instance(self, image_id, kernel_id, ramdisk_id, \
- instance_type, key_name, user_data):
- conn = self.driver.euca_shell
- logger.info('Reserving an instance: image: %s, kernel: ' + \
- '%s, ramdisk: %s, type: %s, key: %s' % \
- (image_id, kernel_id, ramdisk_id,
- instance_type, key_name))
- try:
- reservation = conn.run_instances(image_id=image_id,
- kernel_id=kernel_id,
- ramdisk_id=ramdisk_id,
- instance_type=instance_type,
- key_name=key_name,
- user_data = user_data,
- security_groups=group_names)
- #placement=zone,
- #min_count=min_count,
- #max_count=max_count,
-
- except EC2ResponseError, ec2RespError:
- logger.log_exc(ec2RespError)
-
- def run_instances(self, slicename, rspec, keyname, pubkeys):
- """
- Create the security groups and instances.
- """
- # the default image to use for instnaces that dont
- # explicitly request an image.
- # Just choose the first available image for now.
- image_manager = Image(self.driver)
- available_images = image_manager.get_available_disk_images()
- default_image = image_manager.get_disk_images()[0]
- default_ami_id = CloudController.image_ec2_id(default_image['ami']['id'])
- default_aki_id = CloudController.image_ec2_id(default_image['aki']['id'])
- default_ari_id = CloudController.image_ec2_id(default_image['ari']['id'])
-
- # get requested slivers
+
+ 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
+ created_instances = []
for node in rspec.version.get_nodes_with_slivers():
- instance_types = node.get('slivers', [])
- if isinstance(instance_types, list):
- # iterate over sliver/instance types
- for instance_type in instance_types:
- fw_rules = instance_type.get('fw_rules', [])
- # Each sliver get's its own security group.
- # Keep security group names unique by appending some random
- # characters on end.
- group_name = "_".join([slicename,
- instance_type['name'],
- base64.b64encode(os.urandom(6))])
- self.create_security_group(group_name, fw_rules)
- ami_id = default_ami_id
- aki_id = default_aki_id
- ari_id = default_ari_id
- req_image = instance_type.get('disk_images')
- if req_image and isinstance(req_image, list):
- req_image_name = req_image[0]['name']
- disk_image = image_manager.get_disk_image(name=req_image_name)
- if disk_image:
- ami_id = CloudController.image_ec2_id(disk_image['ami']['id'])
- aki_id = CloudController.image_ec2_id(disk_image['aki']['id'])
- ari_id = CloudController.image_ec2_id(disk_image['ari']['id'])
- # start the instance
- self.reserve_instance(image_id=ami_id,
- kernel_id=aki_id,
- ramdisk_id=ari_id,
- instance_type=instance_type['name'],
- key_name=keyname,
- user_data=pubkeys,
- group_name=group_name)
+ 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]
+ else:
+ raise InvalidRSpec("Must specify a disk_image for each VM")
+ 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']
+ server = 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)
+ if node.get('client_id'):
+ server.metadata['client_id'] = node['client_id']
+ created_instances.append(server)
+
+ except Exception, err:
+ logger.log_exc(err)
+
+ return created_instances
+
+
+ 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(1)
+ 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 True
+
+
+ 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