def map_segment_to_hosts(context, segment_id, hosts):
"""Map segment to a collection of hosts."""
with db_api.CONTEXT_WRITER.using(context):
for host in hosts:
network.SegmentHostMapping(context,
segment_id=segment_id,
host=host).create()
def map_segment_to_hosts(context, segment_id, hosts):
"""Map segment to a collection of hosts."""
with db_api.context_manager.writer.using(context):
for host in hosts:
network.SegmentHostMapping(context,
segment_id=segment_id,
host=host).create()
def map_segment_to_hosts(context, segment_id, hosts):
"""Map segment to a collection of hosts."""
with db_api.autonested_transaction(context.session):
for host in hosts:
network.SegmentHostMapping(context,
segment_id=segment_id,
host=host).create()
def update_segment_host_mapping(context, host, current_segment_ids):
with db_api.CONTEXT_WRITER.using(context):
segment_host_mapping = network.SegmentHostMapping.get_objects(
context, host=host)
previous_segment_ids = {
seg_host['segment_id'] for seg_host in segment_host_mapping}
for segment_id in current_segment_ids - previous_segment_ids:
network.SegmentHostMapping(
context, segment_id=segment_id, host=host).create()
stale_segment_ids = previous_segment_ids - current_segment_ids
if stale_segment_ids:
for entry in segment_host_mapping:
if entry.segment_id in stale_segment_ids:
entry.delete()
def update_segment_host_mapping(context, host, current_segment_ids):
with context.session.begin(subtransactions=True):
segment_host_mapping = network.SegmentHostMapping.get_objects(
context, host=host)
previous_segment_ids = {
seg_host['segment_id'] for seg_host in segment_host_mapping}
for segment_id in current_segment_ids - previous_segment_ids:
network.SegmentHostMapping(
context, segment_id=segment_id, host=host).create()
stale_segment_ids = previous_segment_ids - current_segment_ids
if stale_segment_ids:
for entry in segment_host_mapping:
if entry.segment_id in stale_segment_ids:
entry.delete()
def update_segment_host_mapping(context, host, current_segment_ids):
with db_api.CONTEXT_WRITER.using(context):
segment_host_mapping = network.SegmentHostMapping.get_objects(
context, host=host)
previous_segment_ids = {
seg_host['segment_id']
for seg_host in segment_host_mapping
}
segment_ids = current_segment_ids - previous_segment_ids
for segment_id in segment_ids:
network.SegmentHostMapping(context,
segment_id=segment_id,
host=host).create()
LOG.debug('Segments %s mapped to the host %s', segment_ids, host)
stale_segment_ids = previous_segment_ids - current_segment_ids
if stale_segment_ids:
for entry in segment_host_mapping:
if entry.segment_id in stale_segment_ids:
entry.delete()
LOG.debug('Segment %s unmapped from host %s',
entry.segment_id, entry.host)