import sfa.planetlab.peers as peers
from sfa.planetlab.plaggregate import PlAggregate
from sfa.planetlab.plslices import PlSlices
-from sfa.planetlab.plxrn import PlXrn, slicename_to_hrn, hostname_to_hrn, hrn_to_pl_slicename, xrn_to_hostname, xrn_to_ext_slicename, top_auth
+from sfa.planetlab.plxrn import PlXrn, slicename_to_hrn, hostname_to_hrn, hrn_to_pl_slicename, xrn_to_hostname, top_auth, hash_loginbase
def list_to_dict(recs, key):
if 'max_slices' not in pl_record:
pl_record['max_slices']=2
pointer = self.shell.AddSite(pl_record)
+ self.shell.SetSiteHrn(int(pointer), hrn)
else:
pointer = sites[0]['site_id']
slices = self.shell.GetSlices([pl_record['name']])
if not slices:
pointer = self.shell.AddSlice(pl_record)
+ self.shell.SetSliceHrn(int(pointer), hrn)
else:
pointer = slices[0]['slice_id']
can_add = ['first_name', 'last_name', 'title','email', 'password', 'phone', 'url', 'bio']
add_person_dict=dict ( [ (k,sfa_record[k]) for k in sfa_record if k in can_add ] )
pointer = self.shell.AddPerson(add_person_dict)
+ self.shell.SetPersonHrn(int(pointer), hrn)
else:
pointer = persons[0]['person_id']
nodes = self.shell.GetNodes([pl_record['hostname']])
if not nodes:
pointer = self.shell.AddNode(login_base, pl_record)
+ self.shell.SetNodeHrn(int(pointer), hrn)
else:
pointer = nodes[0]['node_id']
if (type == "authority"):
self.shell.UpdateSite(pointer, new_sfa_record)
+ self.shell.SetSiteHrn(pointer, hrn)
elif type == "slice":
pl_record=self.sfa_fields_to_pl_fields(type, hrn, new_sfa_record)
if 'name' in pl_record:
pl_record.pop('name')
self.shell.UpdateSlice(pointer, pl_record)
+ self.shell.SetSliceHrn(pointer, hrn)
elif type == "user":
# SMBAKER: UpdatePerson only allows a limited set of fields to be
if 'email' in update_fields and not update_fields['email']:
del update_fields['email']
self.shell.UpdatePerson(pointer, update_fields)
+ self.shell.SetPersonHrn(pointer, hrn)
if new_key:
# must check this key against the previous one if it exists
def delete_sliver (self, slice_urn, slice_hrn, creds, options):
top_auth_hrn = top_auth(slice_hrn)
- if top_auth_hrn == self.hrn:
- slicename = hrn_to_pl_slicename(slice_hrn)
+ site_hrn = '.'.join(slice_hrn.split('.')[:-1])
+ slice_part = slice_hrn.split('.')[-1]
+ if top_auth_hrn == self.driver.hrn:
+ login_base = slice_hrn.split('.')[-2][:12]
else:
- slicename = xrn_to_ext_slicename(slice_hrn)
+ login_base = hash_loginbase(site_hrn)
+
+ slicename = '_'.join([login_base, slice_part])
slices = self.shell.GetSlices({'name': slicename})
if not slices:
def renew_sliver (self, slice_urn, slice_hrn, creds, expiration_time, options):
top_auth_hrn = top_auth(slice_hrn)
- if top_auth_hrn == self.hrn:
- slicename = hrn_to_pl_slicename(slice_hrn)
+ site_hrn = '.'.join(slice_hrn.split('.')[:-1])
+ slice_part = slice_hrn.split('.')[-1]
+ if top_auth_hrn == self.driver.hrn:
+ login_base = slice_hrn.split('.')[-2][:12]
else:
- slicename = xrn_to_ext_slicename(slice_hrn)
+ login_base = hash_loginbase(site_hrn)
+ slicename = '_'.join([login_base, slice_part])
slices = self.shell.GetSlices({'name': slicename}, ['slice_id'])
if not slices:
raise RecordNotFound(slice_hrn)
# remove the 'enabled' tag
def start_slice (self, slice_urn, slice_hrn, creds):
top_auth_hrn = top_auth(slice_hrn)
- if top_auth_hrn == self.hrn:
- slicename = hrn_to_pl_slicename(slice_hrn)
+ site_hrn = '.'.join(slice_hrn.split('.')[:-1])
+ slice_part = slice_hrn.split('.')[-1]
+ if top_auth_hrn == self.driver.hrn:
+ login_base = slice_hrn.split('.')[-2][:12]
else:
- slicename = xrn_to_ext_slicename(slice_hrn)
+ login_base = hash_loginbase(site_hrn)
+
+ slicename = '_'.join([login_base, slice_part])
slices = self.shell.GetSlices({'name': slicename}, ['slice_id'])
if not slices:
# set the 'enabled' tag to 0
def stop_slice (self, slice_urn, slice_hrn, creds):
top_auth_hrn = top_auth(slice_hrn)
- if top_auth_hrn == self.hrn:
- slicename = hrn_to_pl_slicename(slice_hrn)
+ site_hrn = '.'.join(slice_hrn.split('.')[:-1])
+ slice_part = slice_hrn.split('.')[-1]
+ if top_auth_hrn == self.driver.hrn:
+ login_base = slice_hrn.split('.')[-2][:12]
else:
- slicename = xrn_to_ext_slicename(slice_hrn)
+ login_base = hash_loginbase(site_hrn)
+
+ slicename = '_'.join([login_base, slice_part])
slices = self.shell.GetSlices({'name': slicename}, ['slice_id'])
if not slices:
from sfa.rspecs.rspec import RSpec
from sfa.planetlab.vlink import VLink
-from sfa.planetlab.plxrn import PlXrn, hrn_to_pl_slicename, xrn_to_hostname, xrn_to_ext_slicename, hrn_to_ext_loginbase, top_auth
+from sfa.planetlab.plxrn import PlXrn, hrn_to_pl_slicename, xrn_to_hostname, top_auth, hash_loginbase
import time
for lease in rspec_requested_leases:
requested_lease = {}
slice_hrn, _ = urn_to_hrn(lease['slice_id'])
+
top_auth_hrn = top_auth(slice_hrn)
+ site_hrn = '.'.join(slice_hrn.split('.')[:-1])
+ slice_part = slice_hrn.split('.')[-1]
if top_auth_hrn == self.driver.hrn:
- slice_name = hrn_to_pl_slicename(lease['slice_id'])
+ login_base = slice_hrn.split('.')[-2][:12]
else:
- slice_name = xrn_to_ext_slicename(lease['slice_id'])
+ login_base = hash_loginbase(site_hrn)
+
+ slice_name = '_'.join([login_base, slice_part])
+
if slice_name != slice['name']:
continue
elif Xrn(lease['component_id']).get_authority_urn().split(':')[0] != self.driver.hrn:
def verify_site(self, slice_xrn, slice_record={}, peer=None, sfa_peer=None, options={}):
(slice_hrn, type) = urn_to_hrn(slice_xrn)
top_auth_hrn = top_auth(slice_hrn)
+ site_hrn = '.'.join(slice_hrn.split('.')[:-1])
if top_auth_hrn == self.driver.hrn:
- # login base can't be longer than 20 characters
- slicename = hrn_to_pl_slicename(slice_hrn)
- authority_name = slicename.split('_')[0]
- login_base = authority_name[:20]
+ login_base = slice_hrn.split('.')[-2][:12]
else:
- login_base = hrn_to_ext_loginbase(slice_hrn)
- authority_name = login_base
+ login_base = hash_loginbase(site_hrn)
+
+ sites = self.driver.shell.GetSites({'peer_id': None},['site_id','name','abbreviated_name','login_base','hrn'])
- sites = self.driver.shell.GetSites(login_base)
- if not sites:
+ # filter sites by hrn
+ site_exists = [site for site in sites if site['hrn'] == site_hrn]
+
+ if not site_exists:
# create new site record
- site = {'name': 'sfa.%s' % authority_name,
- 'abbreviated_name': authority_name,
+ site = {'name': 'sfa:%s' % site_hrn,
+ 'abbreviated_name': site_hrn,
'login_base': login_base,
'max_slices': 100,
'max_slivers': 1000,
'enabled': True,
'peer_site_id': None}
- if peer:
- site['peer_site_id'] = slice_record.get('site_id', None)
+
site['site_id'] = self.driver.shell.AddSite(site)
+ # Set site HRN
+ self.driver.shell.SetSiteHrn(int(site['site_id']), site_hrn)
+ # Tag this as created through SFA
+ self.driver.shell.SetSiteSfaCreated(int(site['site_id']), 'True')
# exempt federated sites from monitor policies
- self.driver.shell.AddSiteTag(site['site_id'], 'exempt_site_until', "20200101")
-
-# # is this still necessary?
-# # add record to the local registry
-# if sfa_peer and slice_record:
-# peer_dict = {'type': 'authority', 'hrn': site_hrn, \
-# 'peer_authority': sfa_peer, 'pointer': site['site_id']}
-# self.registry.register_peer_object(self.credential, peer_dict)
+ self.driver.shell.AddSiteTag(int(site['site_id']), 'exempt_site_until', "20200101")
+
else:
- site = sites[0]
- if peer:
- # unbind from peer so we can modify if necessary. Will bind back later
- self.driver.shell.UnBindObjectFromPeer('site', site['site_id'], peer['shortname'])
+ site = site_exists[0]
return site
def verify_slice(self, slice_hrn, slice_record, peer, sfa_peer, options={}):
top_auth_hrn = top_auth(slice_hrn)
+ site_hrn = '.'.join(slice_hrn.split('.')[:-1])
+ slice_part = slice_hrn.split('.')[-1]
if top_auth_hrn == self.driver.hrn:
- slice_name = hrn_to_pl_slicename(slice_hrn)
- parts = slice_name.split("_")
- login_base = parts[0]
+ login_base = slice_hrn.split('.')[-2][:12]
else:
- login_base = hrn_to_ext_loginbase(slice_hrn)
- slice_name = xrn_to_ext_slicename(slice_hrn)
+ login_base = hash_loginbase(site_hrn)
+
+
+ slice_name = '_'.join([login_base, slice_part])
- slices = self.driver.shell.GetSlices([slice_name])
- if not slices:
+ slices = self.driver.shell.GetSlices({'peer_id': None},['slice_id','name','hrn'])
+ # Filter slices by HRN
+ slice_exists = [slice for slice in slices if slice['hrn'] == slice_hrn]
+ if not slice_exists:
slice = {'name': slice_name,
'url': slice_record.get('url', slice_hrn),
'description': slice_record.get('description', slice_hrn)}
slice['slice_id'] = self.driver.shell.AddSlice(slice)
# set the slice HRN
self.driver.shell.SetSliceHrn(int(slice['slice_id']), slice_hrn)
+ # Tag this as created through SFA
+ self.driver.shell.SetSliceSfaCreated(int(slice['slice_id']), 'True')
- slice['node_ids'] = []
- slice['person_ids'] = []
- if peer:
- slice['peer_slice_id'] = slice_record.get('slice_id', None)
- # mark this slice as an sfa peer record
-# if sfa_peer:
-# peer_dict = {'type': 'slice', 'hrn': slice_hrn,
-# 'peer_authority': sfa_peer, 'pointer': slice['slice_id']}
-# self.registry.register_peer_object(self.credential, peer_dict)
else:
- slice = slices[0]
- # Check slice HRN
- if self.driver.shell.GetSliceHrn(slice['slice_id']) != slice_hrn:
- self.driver.shell.SetSliceHrn(slice['slice_id'], slice_hrn)
-
- if peer:
- slice['peer_slice_id'] = slice_record.get('slice_id', None)
- # unbind from peer so we can modify if necessary. Will bind back later
- self.driver.shell.UnBindObjectFromPeer('slice', slice['slice_id'], peer['shortname'])
- #Update existing record (e.g. expires field) it with the latest info.
+ slice = slice_exists[0]
if slice_record and slice_record.get('expires'):
requested_expires = int(datetime_to_epoch(utcparse(slice_record['expires'])))
if requested_expires and slice['expires'] != requested_expires:
- self.driver.shell.UpdateSlice( slice['slice_id'], {'expires' : requested_expires})
+ self.driver.shell.UpdateSlice( int(slice['slice_id']), {'expires' : requested_expires})
- return slice
+ return self.driver.shell.GetSlices(int(slice['slice_id']))[0]
- #def get_existing_persons(self, users):
def verify_persons(self, slice_hrn, slice_record, users, peer, sfa_peer, options={}):
- users_by_email = {}
- users_by_site = defaultdict(list)
- users_dict = {}
+ top_auth_hrn = top_auth(slice_hrn)
+ site_hrn = '.'.join(slice_hrn.split('.')[:-1])
+ slice_part = slice_hrn.split('.')[-1]
+ users_by_hrn = {}
for user in users:
- user['urn'] = user['urn'].lower()
- hrn, type = urn_to_hrn(user['urn'])
- username = get_leaf(hrn)
- user['username'] = username
-
- top_auth_hrn = top_auth(hrn)
+ user['hrn'], _ = urn_to_hrn(user['urn'])
+ users_by_hrn[user['hrn']] = user
- if top_auth_hrn == self.driver.hrn:
- login_base = PlXrn(xrn=user['urn']).pl_login_base()
- else:
- login_base = hrn_to_ext_loginbase(hrn)
+ if top_auth_hrn == self.driver.hrn:
+ login_base = slice_hrn.split('.')[-2][:12]
+ else:
+ login_base = hash_loginbase(site_hrn)
- user['site'] = login_base
- if 'email' in user:
- user['email'] = user['email'].lower()
- users_by_email[user['email']] = user
- users_dict[user['email']] = user
- else:
- users_by_site[user['site']].append(user)
-
- # start building a list of existing users
- existing_user_ids = []
- existing_user_ids_filter = []
- if users_by_email:
- existing_user_ids_filter.extend(users_by_email.keys())
- if users_by_site:
- for login_base in users_by_site:
- users = users_by_site[login_base]
- for user in users:
- existing_user_ids_filter.append(user['username']+'@geni.net')
- if existing_user_ids_filter:
- # get existing users by email
- existing_users = self.driver.shell.GetPersons({'email': existing_user_ids_filter},
- ['person_id', 'key_ids', 'email'])
- existing_user_ids.extend([user['email'] for user in existing_users])
-
- if users_by_site:
- # get a list of user sites (based on requeste user urns
- site_list = self.driver.shell.GetSites(users_by_site.keys(), \
- ['site_id', 'login_base', 'person_ids'])
- # get all existing users at these sites
- sites = {}
- site_user_ids = []
- for site in site_list:
- sites[site['site_id']] = site
- site_user_ids.extend(site['person_ids'])
-
- existing_site_persons_list = self.driver.shell.GetPersons(site_user_ids,
- ['person_id', 'key_ids', 'email', 'site_ids'])
-
- # all requested users are either existing users or new (added) users
- for login_base in users_by_site:
- requested_site_users = users_by_site[login_base]
- for requested_user in requested_site_users:
- user_found = False
- for existing_user in existing_site_persons_list:
- for site_id in existing_user['site_ids']:
- if site_id in sites:
- site = sites[site_id]
- if login_base == site['login_base'] and \
- existing_user['email'].startswith(requested_user['username']+'@'):
- existing_user_ids.append(existing_user['email'])
- requested_user['email'] = existing_user['email']
- users_dict[existing_user['email']] = requested_user
- user_found = True
- break
- if user_found:
- break
-
- if user_found == False:
- fake_email = requested_user['username'] + '@geni.net'
- requested_user['email'] = fake_email
- users_dict[fake_email] = requested_user
-
- # requested slice users
- requested_user_ids = users_dict.keys()
- # existing slice users
- existing_slice_users_filter = {'person_id': slice_record.get('person_ids', [])}
- existing_slice_users = self.driver.shell.GetPersons(existing_slice_users_filter,
- ['person_id', 'key_ids', 'email'])
- existing_slice_user_ids = [user['email'] for user in existing_slice_users]
-
- # users to be added, removed or updated
- added_user_ids = set(requested_user_ids).difference(existing_user_ids)
- added_slice_user_ids = set(requested_user_ids).difference(existing_slice_user_ids)
- removed_user_ids = set(existing_slice_user_ids).difference(requested_user_ids)
- updated_user_ids = set(existing_slice_user_ids).intersection(requested_user_ids)
-
- # Remove stale users (only if we are not appending).
- # Append by default.
- append = options.get('append', True)
- if append == False:
- for removed_user_id in removed_user_ids:
- self.driver.shell.DeletePersonFromSlice(removed_user_id, slice_record['name'])
- # update_existing users
- updated_users_list = [user for user in users_dict.values() if user['email'] in \
- updated_user_ids]
- self.verify_keys(existing_slice_users, updated_users_list, peer, options)
-
- added_persons = []
- # add new users
- for added_user_id in added_user_ids:
- added_user = users_dict[added_user_id]
- hrn, type = urn_to_hrn(added_user['urn'])
- person = {
- 'first_name': added_user.get('first_name', hrn),
- 'last_name': added_user.get('last_name', hrn),
- 'email': added_user_id,
- #'peer_person_id': None,
- #'keys': [],
- #'key_ids': added_user.get('key_ids', []),
- }
- person['person_id'] = self.driver.shell.AddPerson(person)
- self.driver.shell.AddRoleToPerson('user', int(person['person_id']))
- # check user HRN
- if self.driver.shell.GetPersonHrn(int(person['person_id'])) != hrn:
- self.driver.shell.SetPersonHrn(int(person['person_id']), hrn)
+ slice_name = '_'.join([login_base, slice_part])
- if peer:
- person['peer_person_id'] = added_user['person_id']
- added_persons.append(person)
-
- # enable the account
- self.driver.shell.UpdatePerson(person['person_id'], {'enabled': True})
+ persons = self.driver.shell.GetPersons({'peer_id': None},['person_id','email','hrn'])
+ site = self.driver.shell.GetSites({'peer_id': None, 'login_base': login_base})[0]
+ slice = self.driver.shell.GetSlices({'peer_id': None, 'name': slice_name})[0]
+ slice_persons = self.driver.shell.GetPersons({'peer_id': None, 'person_id': slice['person_ids']},['person_id','email','hrn'])
+
+ persons_by_hrn = {}
+ persons_by_email = {}
+ for person in persons:
+ persons_by_hrn[person['hrn']] = person
+ persons_by_email[person['email']] = person
+ slice_persons_by_hrn = {}
+ for slice_person in slice_persons:
+ slice_persons_by_hrn[slice_person['hrn']] = slice_person
+
+ # sort persons by HRN
+ persons_to_add = set(users_by_hrn.keys()).difference(slice_persons_by_hrn.keys())
+ persons_to_delete = set(slice_persons_by_hrn.keys()).difference(users_by_hrn.keys())
+ persons_to_keep = set(users_by_hrn.keys()).intersection(slice_persons_by_hrn.keys())
+
+
+ persons_to_verify_keys = {}
+
+ # Add persons or add persons to slice
+ for person_hrn in persons_to_add:
+ person_email = users_by_hrn[person_hrn].get('email', None)
+ if person_email and person_email in persons_by_email.keys():
+ # check if the user already exist in PL
+ person_id = persons_by_email[person_email]['person_id']
+ self.driver.shell.AddPersonToSlice(person_id, slice['slice_id'])
+ persons_to_verify_keys[person_id] = users_by_hrn[person_hrn]
+
+ else:
+ person = {
+ 'first_name': person_hrn,
+ 'last_name': person_hrn,
+ 'email': users_by_hrn[person_hrn].get('email', "%s@geni.net"%person_hrn.split('.')[-1]),
+ 'enabled': True
+ }
+
+ person_id = self.driver.shell.AddPerson(person)
+ self.driver.shell.AddRoleToPerson('user', int(person_id))
+ self.driver.shell.SetPersonHrn(int(person_id), person_hrn)
+ self.driver.shell.SetPersonSfaCreated(int(person_id), 'True')
+ self.driver.shell.AddPersonToSite(int(person_id), site['site_id'])
+ self.driver.shell.AddPersonToSlice(int(person_id), slice['slice_id'])
+
+ # Add keys
+ for key in users_by_hrn[person_hrn].get('keys', []):
+ key = {'key':key, 'key_type':'ssh'}
+ self.driver.shell.AddPersonKey(person_id, key)
+
+
+ # Delete persons from slice
+ for person_hrn in persons_to_delete:
+ person_id = slice_persons_by_hrn[person_hrn].get('person_id')
+ slice_id = slice['slice_id']
+ self.driver.shell.DeletePersonFromSlice(person_id, slice_id)
+
+
+ # Update kept persons
+ for person_hrn in persons_to_keep:
+ person_id = slice_persons_by_hrn[person_hrn].get('person_id')
+ persons_to_verify_keys[person_id] = users_by_hrn[person_hrn]
+
+ self.verify_keys(persons_to_verify_keys, peer, options)
+
+ return persons_to_add
- # add person to site
- self.driver.shell.AddPersonToSite(added_user_id, added_user['site'])
-
- for key_string in added_user.get('keys', []):
- key = {'key':key_string, 'key_type':'ssh'}
- key['key_id'] = self.driver.shell.AddPersonKey(person['person_id'], key)
- if 'keys' not in person:
- person['keys'] = []
- person['keys'].append(key)
-
- # add the registry record
-# if sfa_peer:
-# peer_dict = {'type': 'user', 'hrn': hrn, 'peer_authority': sfa_peer, \
-# 'pointer': person['person_id']}
-# self.registry.register_peer_object(self.credential, peer_dict)
-
- for added_slice_user_id in added_slice_user_ids.union(added_user_ids):
- # add person to the slice
- self.driver.shell.AddPersonToSlice(added_slice_user_id, slice_record['name'])
- # if this is a peer record then it should already be bound to a peer.
- # no need to return worry about it getting bound later
- return added_persons
+ def verify_keys(self, persons_to_verify_keys, peer, options={}):
+ # we only add keys that comes from sfa to persons in PL
+ for person_id in persons_to_verify_keys:
+ person_sfa_keys = persons_to_verify_keys[person_id].get('keys', [])
+ person_pl_keys = self.driver.shell.GetKeys({'person_id': int(person_id)})
+ person_pl_keys_list = [key['key'] for key in person_pl_keys]
+
+ keys_to_add = set(person_sfa_keys).difference(person_pl_keys_list)
+ for key_string in keys_to_add:
+ key = {'key': key_string, 'key_type': 'ssh'}
+ self.driver.shell.AddPersonKey(int(person_id), key)
- def verify_keys(self, persons, users, peer, options={}):
- # existing keys
- key_ids = []
- for person in persons:
- key_ids.extend(person['key_ids'])
- keylist = self.driver.shell.GetKeys(key_ids, ['key_id', 'key'])
- keydict = {}
- for key in keylist:
- keydict[key['key']] = key['key_id']
- existing_keys = keydict.keys()
- persondict = {}
- for person in persons:
- persondict[person['email']] = person
-
- # add new keys
- requested_keys = []
- updated_persons = []
- for user in users:
- user_keys = user.get('keys', [])
- updated_persons.append(user)
- for key_string in user_keys:
- requested_keys.append(key_string)
- if key_string not in existing_keys:
- key = {'key': key_string, 'key_type': 'ssh'}
- try:
- if peer:
- person = persondict[user['email']]
- self.driver.shell.UnBindObjectFromPeer('person', person['person_id'], peer['shortname'])
- key['key_id'] = self.driver.shell.AddPersonKey(user['email'], key)
- if peer:
- key_index = user_keys.index(key['key'])
- remote_key_id = user['key_ids'][key_index]
- self.driver.shell.BindObjectToPeer('key', key['key_id'], peer['shortname'], remote_key_id)
-
- finally:
- if peer:
- self.driver.shell.BindObjectToPeer('person', person['person_id'], peer['shortname'], user['person_id'])
-
- # remove old keys (only if we are not appending)
- append = options.get('append', True)
- if append == False:
- removed_keys = set(existing_keys).difference(requested_keys)
- for existing_key_id in keydict:
- if keydict[existing_key_id] in removed_keys:
- try:
- if peer:
- self.driver.shell.UnBindObjectFromPeer('key', existing_key_id, peer['shortname'])
- self.driver.shell.DeleteKey(existing_key_id)
- except:
- pass
def verify_slice_attributes(self, slice, requested_slice_attributes, options={}, admin=False):
append = options.get('append', True)
# get sliver attributes
added_slice_attributes = []
removed_slice_attributes = []
- ignored_slice_attribute_names = []
+ # we need to keep the slice hrn anyway
+ ignored_slice_attribute_names = ['hrn']
existing_slice_attributes = self.driver.shell.GetSliceTags({'slice_id': slice['slice_id']})
# get attributes that should be removed
# If a slice already has a admin only role it was probably given to them by an
# admin, so we should ignore it.
ignored_slice_attribute_names.append(slice_tag['tagname'])
+ attribute_found=True
else:
# If an existing slice attribute was not found in the request it should
# be removed