def _free_vlans():
free_vlans = set(
range(int(settings.VLANS_RANGE_START),
int(settings.VLANS_RANGE_END))) - set(used_vlans)
if not free_vlans or len(free_vlans) < len(networks_metadata):
raise errors.OutOfVLANs()
return sorted(list(free_vlans))
def _free_vlans():
free_vlans = set(
range(
*global_params.parameters["vlan_range"]
)
) - set(used_vlans)
if not free_vlans or len(free_vlans) < len(networks_list):
raise errors.OutOfVLANs()
return sorted(list(free_vlans))
def create_network_groups(self, cluster_id):
'''
Method for creation of network groups for cluster.
:param cluster_id: Cluster database ID.
:type cluster_id: int
:returns: None
:raises: errors.OutOfVLANs, errors.OutOfIPs,
errors.NoSuitableCIDR
'''
used_nets = [n.cidr for n in self.db.query(Network).all()]
used_vlans = [v.id for v in self.db.query(Vlan).all()]
cluster_db = self.db.query(Cluster).get(cluster_id)
networks_metadata = cluster_db.release.networks_metadata
free_vlans = set(
range(int(settings.VLANS_RANGE_START), int(
settings.VLANS_RANGE_END))) - set(used_vlans)
if not free_vlans or len(free_vlans) < len(networks_metadata):
raise errors.OutOfVLANs()
for network in networks_metadata:
vlan_start = sorted(list(free_vlans))[0]
logger.debug(u"Found free vlan: %s", vlan_start)
pool = settings.NETWORK_POOLS.get(network['access'])
if not pool:
raise errors.InvalidNetworkAccess(
u"Invalid access '{0}' for network '{1}'".format(
network['access'], network['name']))
nets_free_set = IPSet(pool) -\
IPSet(settings.NET_EXCLUDE) -\
IPSet(
IPRange(
settings.ADMIN_NETWORK["first"],
settings.ADMIN_NETWORK["last"]
)
) -\
IPSet(used_nets)
if not nets_free_set:
raise errors.OutOfIPs()
free_cidrs = sorted(list(nets_free_set._cidrs))
new_net = None
for fcidr in free_cidrs:
for n in fcidr.subnet(24, count=1):
new_net = n
break
if new_net:
break
if not new_net:
raise errors.NoSuitableCIDR()
new_ip_range = IPAddrRange(first=str(new_net[2]),
last=str(new_net[-2]))
nw_group = NetworkGroup(release=cluster_db.release.id,
name=network['name'],
access=network['access'],
cidr=str(new_net),
netmask=str(new_net.netmask),
gateway=str(new_net[1]),
cluster_id=cluster_id,
vlan_start=vlan_start,
amount=1)
self.db.add(nw_group)
self.db.commit()
nw_group.ip_ranges.append(new_ip_range)
self.db.commit()
self.create_networks(nw_group)
free_vlans = free_vlans - set([vlan_start])
used_nets.append(str(new_net))