Add better handling of listing leases and handling static reservations
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e5ed3d2c44
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@ -740,11 +740,39 @@ def net_dhcp():
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"""
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pass
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###############################################################################
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# pvc network dhcp list
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###############################################################################
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@click.command(name='list', short_help='List active DHCP leases.')
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@click.argument(
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'net'
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)
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@click.argument(
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'limit', default=None, required=False
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)
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def net_dhcp_list(net, limit):
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"""
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List all DHCP leases in virtual network NET; optionally only match elements matching regex LIMIT; NET can be either a VNI or description.
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"""
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zk_conn = pvc_common.startZKConnection(zk_host)
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retcode, retmsg = pvc_network.get_list_dhcp(zk_conn, net, limit, only_static=False)
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cleanup(retcode, retmsg, zk_conn)
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###############################################################################
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# pvc network dhcp add
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# pvc network dhcp static
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###############################################################################
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@click.command(name='add', short_help='Add a static DHCP lease to a virtual network.')
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@click.group(name='static', short_help='Manage DHCP static reservations in a PVC virtual network.', context_settings=CONTEXT_SETTINGS)
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def net_dhcp_static():
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"""
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Manage host DHCP static reservations of a VXLAN network in the PVC cluster.
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"""
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pass
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###############################################################################
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# pvc network dhcp static add
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###############################################################################
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@click.command(name='add', short_help='Add a DHCP static reservation.')
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@click.argument(
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'net'
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)
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@ -757,9 +785,9 @@ def net_dhcp():
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@click.argument(
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'macaddr'
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)
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def net_dhcp_add(net, ipaddr, macaddr, hostname):
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def net_dhcp_static_add(net, ipaddr, macaddr, hostname):
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"""
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Add a new static DHCP lease of IP address IPADDR with hostname HOSTNAME for MAC address MACADDR to virtual network NET; NET can be either a VNI or description.
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Add a new DHCP static reservation of IP address IPADDR with hostname HOSTNAME for MAC address MACADDR to virtual network NET; NET can be either a VNI or description.
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"""
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zk_conn = pvc_common.startZKConnection(zk_host)
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@ -767,45 +795,41 @@ def net_dhcp_add(net, ipaddr, macaddr, hostname):
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cleanup(retcode, retmsg, zk_conn)
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###############################################################################
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# pvc network dhcp remove
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# pvc network dhcp static remove
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###############################################################################
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@click.command(name='remove', short_help='Remove a DHCP lease from a virtual network.')
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@click.command(name='remove', short_help='Remove a DHCP static reservation.')
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@click.argument(
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'net'
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)
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@click.argument(
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'lease'
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'reservation'
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)
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def net_dhcp_remove(net, lease):
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def net_dhcp_static_remove(net, reservation):
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"""
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Remove a DHCP lease LEASE from virtual network NET; LEASE can be either a MAC address, an IP address, or a hostname; NET can be either a VNI or description.
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Remove a DHCP static reservation RESERVATION from virtual network NET; RESERVATION can be either a MAC address, an IP address, or a hostname; NET can be either a VNI or description.
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"""
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zk_conn = pvc_common.startZKConnection(zk_host)
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retcode, retmsg = pvc_network.remove_dhcp_lease(zk_conn, net, lease)
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retcode, retmsg = pvc_network.remove_dhcp_reservation(zk_conn, net, reservation)
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cleanup(retcode, retmsg, zk_conn)
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###############################################################################
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# pvc network dhcp list
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# pvc network dhcp static list
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###############################################################################
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@click.command(name='list', short_help='List DHCP lease objects.')
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@click.option(
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'-s', '--static', 'only_static', is_flag=True, default=False,
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help='Show only static leases.'
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)
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@click.command(name='list', short_help='List DHCP static reservations.')
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@click.argument(
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'net'
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)
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@click.argument(
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'limit', default=None, required=False
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)
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def net_dhcp_list(net, limit, only_static):
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def net_dhcp_static_list(net, limit):
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"""
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List all DHCP leases in virtual network NET; optionally only match elements matching regex LIMIT; NET can be either a VNI or description.
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List all DHCP static reservations in virtual network NET; optionally only match elements matching regex LIMIT; NET can be either a VNI or description.
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"""
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zk_conn = pvc_common.startZKConnection(zk_host)
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retcode, retmsg = pvc_network.get_list_dhcp_leases(zk_conn, net, limit, only_static=only_static)
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retcode, retmsg = pvc_network.get_list_dhcp(zk_conn, net, limit, only_static=True)
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cleanup(retcode, retmsg, zk_conn)
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###############################################################################
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@ -918,9 +942,12 @@ cli_network.add_command(net_list)
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cli_network.add_command(net_dhcp)
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cli_network.add_command(net_acl)
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net_dhcp.add_command(net_dhcp_add)
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net_dhcp.add_command(net_dhcp_remove)
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net_dhcp.add_command(net_dhcp_list)
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net_dhcp.add_command(net_dhcp_static)
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net_dhcp_static.add_command(net_dhcp_static_add)
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net_dhcp_static.add_command(net_dhcp_static_remove)
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net_dhcp_static.add_command(net_dhcp_static_list)
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cli.add_command(cli_node)
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cli.add_command(cli_router)
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@ -106,13 +106,8 @@ def getNetworkDHCPLeases(zk_conn, vni):
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return sorted(dhcp_leases)
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def getNetworkDHCPReservations(zk_conn, vni):
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# Get a list of VNIs by listing the children of /networks/<vni>/dhcp_leases
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dhcp_reservations = []
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dhcp_leases = getNetworkDHCPLeases(zk_conn, vni)
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for lease in dhcp_leases:
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timestamp = zkhandler.readdata(zk_conn, '/networks/{}/dhcp_leases/{}'.format (vni, lease))
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if timestamp == 'static':
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dhcp_reservations.append(lease)
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# Get a list of DHCP reservations by listing the children of /networks/<vni>/dhcp_reservations
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dhcp_reservations = zk_conn.get_children('/networks/{}/dhcp_reservations'.format(vni))
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return sorted(dhcp_reservations)
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def getNetworkFirewallRules(zk_conn, vni):
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@ -132,7 +127,10 @@ def getNetworkInformation(zk_conn, vni):
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def getDHCPLeaseInformation(zk_conn, vni, mac_address):
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hostname = zkhandler.readdata(zk_conn, '/networks/{}/dhcp_leases/{}/hostname'.format(vni, mac_address))
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ip_address = zkhandler.readdata(zk_conn, '/networks/{}/dhcp_leases/{}/ipaddr'.format(vni, mac_address))
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timestamp = zkhandler.readdata(zk_conn, '/networks/{}/dhcp_leases/{}'.format(vni, mac_address))
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try:
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timestamp = zkhandler.readdata(zk_conn, '/networks/{}/dhcp_leases/{}/expiry'.format(vni, mac_address))
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except:
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timestamp = 'static'
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return hostname, ip_address, mac_address, timestamp
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def formatNetworkInformation(zk_conn, vni, long_output):
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@ -423,6 +421,7 @@ def add_network(zk_conn, vni, description, domain, ip_network, ip_gateway, dhcp_
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'/networks/{}/dhcp_start'.format(vni): dhcp_start,
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'/networks/{}/dhcp_end'.format(vni): dhcp_end,
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'/networks/{}/dhcp_leases'.format(vni): '',
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'/networks/{}/dhcp_reservations'.format(vni): '',
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'/networks/{}/firewall_rules'.format(vni): ''
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})
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@ -558,14 +557,18 @@ def get_list(zk_conn, limit):
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return True, ''
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def get_list_dhcp_leases(zk_conn, network, limit, only_static=False):
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def get_list_dhcp(zk_conn, network, limit, only_static=False):
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# Validate and obtain alternate passed value
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net_vni = getNetworkVNI(zk_conn, network)
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if net_vni == None:
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return False, 'ERROR: Could not find network "{}" in the cluster!'.format(network)
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dhcp_leases_list = []
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full_dhcp_leases_list = getNetworkDHCPLeases(zk_conn, net_vni)
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dhcp_list = []
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if only_static:
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full_dhcp_list = getNetworkDHCPReservations(zk_conn, net_vni)
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else:
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full_dhcp_list = getNetworkDHCPLeases(zk_conn, net_vni)
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if limit:
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try:
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@ -578,19 +581,8 @@ def get_list_dhcp_leases(zk_conn, network, limit, only_static=False):
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return False, 'Regex Error: {}'.format(e)
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for lease in full_dhcp_leases_list:
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for lease in full_dhcp_list:
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valid_lease = False
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if only_static:
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lease_timestamp = zkhandler.readdata(zk_conn, '/networks/{}/dhcp_leases/{}'.format(net_vni, lease))
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if lease_timestamp == 'static':
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if limit:
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if re.match(limit, lease) != None:
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valid_lease = True
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if re.match(limit, lease) != None:
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valid_lease = True
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else:
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valid_lease = True
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else:
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if limit:
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if re.match(limit, lease) != None:
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valid_lease = True
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@ -600,9 +592,9 @@ def get_list_dhcp_leases(zk_conn, network, limit, only_static=False):
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valid_lease = True
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if valid_lease:
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dhcp_leases_list.append(lease)
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dhcp_list.append(lease)
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output_string = formatDHCPLeaseList(zk_conn, net_vni, dhcp_leases_list)
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output_string = formatDHCPLeaseList(zk_conn, net_vni, dhcp_list)
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click.echo(output_string)
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return True, ''
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