def create_host_group(self, name, members, policies):
"""
Create a host group
"""
member_uuids = []
for instance_uuid, instance in self._instance_table.iteritems():
if instance.name in members:
member_uuids.append(instance_uuid)
nfvi_host_group = nfvi.objects.v1.HostGroup(name=name,
member_names=members,
policies=policies)
host_group = objects.HostGroup(nfvi_host_group)
self._host_group_table[host_group.name] = host_group
def database_host_group_get_list():
"""
Fetch all the host group objects from the database
"""
db = database_get()
session = db.session()
query = session.query(model.HostGroup)
host_group_objs = list()
for host_group in query.all():
nfvi_data = json.loads(host_group.nfvi_host_group_data)
nfvi_host_group = nfvi.objects.v1.HostGroup(
nfvi_data['name'], nfvi_data['member_names'],
nfvi_data['policies'])
host_group_obj = objects.HostGroup(nfvi_host_group)
host_group_objs.append(host_group_obj)
return host_group_objs
def _audit_nfvi_hosts_callback(timer_id):
"""
Audit Hosts
"""
global _main_audit_inprogress
response = (yield)
DLOG.verbose("Audit-Hosts callback, responses=%s." % response)
if response['completed']:
host_table = tables.tables_get_host_table()
deletable_host_groups = list(host_table)
for host_name in response['incomplete-hosts']:
if host_name in deletable_host_groups:
deletable_host_groups.remove(host_name)
DLOG.info("Not deleting host %s, incomplete information "
"returned." % host_name)
for nfvi_host in response['result-data']:
host = host_table.get(nfvi_host.name, None)
if host is None:
host = objects.Host(nfvi_host)
host_table[host.name] = host
else:
if not host.is_deleted():
deletable_host_groups.remove(host.name)
if 30 <= host.elapsed_time_in_state:
# Only process the audited host information if the host has
# been in the current state for at least 30 seconds. This is
# necessary because the host state information comes from
# maintenance and the maintenance states may lag the states in
# the VIM because the VIM and maintenance process some actions
# at the same time (e.g. when a host is locked).
host.nfvi_host_update(nfvi_host)
else:
DLOG.info("Ignoring audit reply for host %s" % nfvi_host.name)
for host_name in deletable_host_groups:
host = host_table[host_name]
host.nfvi_host_delete()
if host.is_deleted():
del host_table[host.name]
# Manage host groups
host_group_table = tables.tables_get_host_group_table()
deletable_host_groups = list(host_group_table)
for host_name in response['incomplete-hosts']:
host_group = next(
(x for x in host_group_table if host_name in x.member_names),
None)
if host_group is not None:
if host_group.name in deletable_host_groups:
deletable_host_groups.remove(host_group.name)
DLOG.info(
"Not deleting host group %s, incomplete information "
"returned for host %s." % (host_group.name, host_name))
for nfvi_host_group in response['host-groups']:
host_group = host_group_table.get(nfvi_host_group.name, None)
if host_group is None:
host_group = objects.HostGroup(nfvi_host_group)
host_group_table[host_group.name] = host_group
else:
deletable_host_groups.remove(host_group.name)
host_group.nfvi_host_group_update(nfvi_host_group)
for host_group_name in deletable_host_groups:
del host_group_table[host_group_name]
else:
DLOG.error("Audit-Hosts callback, not completed, responses=%s." %
response)
_main_audit_inprogress = False
timers.timers_reschedule_timer(timer_id, 2) # 2 seconds later
def _audit_nfvi_hosts_callback(timer_id):
"""
Audit Hosts
"""
global _main_audit_inprogress
response = (yield)
DLOG.verbose("Audit-Hosts callback, responses=%s." % response)
if response['completed']:
host_table = tables.tables_get_host_table()
deletable_host_groups = host_table.keys()
for host_name in response['incomplete-hosts']:
if host_name in deletable_host_groups:
deletable_host_groups.remove(host_name)
DLOG.info("Not deleting host %s, incomplete information "
"returned." % host_name)
for nfvi_host in response['result-data']:
host = host_table.get(nfvi_host.name, None)
if host is None:
host = objects.Host(nfvi_host)
host_table[host.name] = host
else:
if not host.is_deleted():
deletable_host_groups.remove(host.name)
host.nfvi_host_update(nfvi_host)
for host_name in deletable_host_groups:
host = host_table[host_name]
host.nfvi_host_delete()
if host.is_deleted():
del host_table[host.name]
# Manage host groups
host_group_table = tables.tables_get_host_group_table()
deletable_host_groups = host_group_table.keys()
for host_name in response['incomplete-hosts']:
host_group = next((x for x in host_group_table
if host_name in x.member_names), None)
if host_group is not None:
if host_group.name in deletable_host_groups:
deletable_host_groups.remove(host_group.name)
DLOG.info("Not deleting host group %s, incomplete information "
"returned for host %s." % (host_group.name,
host_name))
for nfvi_host_group in response['host-groups']:
host_group = host_group_table.get(nfvi_host_group.name, None)
if host_group is None:
host_group = objects.HostGroup(nfvi_host_group)
host_group_table[host_group.name] = host_group
else:
deletable_host_groups.remove(host_group.name)
host_group.nfvi_host_group_update(nfvi_host_group)
for host_group_name in deletable_host_groups:
del host_group_table[host_group_name]
else:
DLOG.error("Audit-Hosts callback, not completed, responses=%s."
% response)
_main_audit_inprogress = False
timers.timers_reschedule_timer(timer_id, 2) # 2 seconds later