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Handle removing static and dynamic DHCP leases

This commit is contained in:
Joshua Boniface 2020-01-05 01:06:03 -05:00
parent c032cf3f49
commit 971b6adb0a
1 changed files with 16 additions and 4 deletions
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20
client-common/network.py
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@ -368,24 +368,36 @@ def remove_dhcp_reservation(zk_conn, network, reservation):
match_description = ''
# Check if the reservation matches a description, a mac, or an IP address currently in the database
# Check if the reservation matches a static reservation description, a mac, or an IP address currently in the database
dhcp4_reservations_list = getNetworkDHCPReservations(zk_conn, net_vni)
for macaddr in dhcp4_reservations_list:
hostname = zkhandler.readdata(zk_conn, '/networks/{}/dhcp4_reservations/{}/hostname'.format(net_vni, macaddr))
ipaddress = zkhandler.readdata(zk_conn, '/networks/{}/dhcp4_reservations/{}/ipaddr'.format(net_vni, macaddr))
if reservation == macaddr or reservation == hostname or reservation == ipaddress:
match_description = macaddr
lease_type_zk = 'reservations'
lease_type_human = 'static reservation'
# Check if the reservation matches a dynamic reservation description, a mac, or an IP address currently in the database
dhcp4_leases_list = getNetworkDHCPLeases(zk_conn, net_vni)
for macaddr in dhcp4_leases_list:
hostname = zkhandler.readdata(zk_conn, '/networks/{}/dhcp4_leases/{}/hostname'.format(net_vni, macaddr))
ipaddress = zkhandler.readdata(zk_conn, '/networks/{}/dhcp4_leases/{}/ipaddr'.format(net_vni, macaddr))
if reservation == macaddr or reservation == hostname or reservation == ipaddress:
match_description = macaddr
lease_type_zk = 'leases'
lease_type_human = 'dynamic lease'
if not match_description:
return False, 'ERROR: No DHCP reservation exists matching "{}"!'.format(reservation)
return False, 'ERROR: No DHCP reservation or lease exists matching "{}"!'.format(reservation)
# Remove the entry from zookeeper
try:
zkhandler.deletekey(zk_conn, '/networks/{}/dhcp4_reservations/{}'.format(net_vni, match_description))
zkhandler.deletekey(zk_conn, '/networks/{}/dhcp4_{}/{}'.format(net_vni, lease_type_zk, match_description))
except:
return False, 'ERROR: Failed to write to Zookeeper!'
return True, 'DHCP reservation "{}" removed successfully!'.format(match_description)
return True, 'DHCP {} "{}" removed successfully!'.format(lease_type_human, match_description)
def add_acl(zk_conn, network, direction, description, rule, order):
# Validate and obtain standard passed value