old_contents: from pprint import pprint
  from netaddr import *
  
  def merge(dbag, ip):
      added = False
      for dev in dbag:
          if dev == "id":
             continue
          for address in dbag[dev]:
              if address['public_ip'] == ip['public_ip']:
                 dbag[dev].remove(address)
      if ip['add']:
         ipo = IPNetwork(ip['public_ip'] + '/' + ip['netmask'])
         ip['device'] = 'eth' + str(ip['nic_dev_id'])
         ip['cidr'] = str(ipo.ip) + '/' + str(ipo.prefixlen)
         ip['network'] = str(ipo.network) + '/' + str(ipo.prefixlen)
         if 'nw_type' not in ip.keys():
             ip['nw_type'] = 'public'
         dbag.setdefault('eth' + str(ip['nic_dev_id']), []).append( ip )
      return dbag
  
new_contents: from pprint import pprint
  from netaddr import *
  
  def merge(dbag, ip):
      added = False
      for dev in dbag:
          if dev == "id":
             continue
          for address in dbag[dev]:
              if address['public_ip'] == ip['public_ip']:
                 dbag[dev].remove(address)
      if ip['add']:
         ipo = IPNetwork(ip['public_ip'] + '/' + ip['netmask'])
         ip['device'] = 'eth' + str(ip['nic_dev_id'])
         ip['cidr'] = str(ipo.ip) + '/' + str(ipo.prefixlen)
         ip['network'] = str(ipo.network) + '/' + str(ipo.prefixlen)
         if 'nw_type' not in ip.keys():
             ip['nw_type'] = 'public'
         if ip['nw_type'] == 'control':
             dbag['eth' + str(ip['nic_dev_id'])] = [ ip ]
         else:
             dbag.setdefault('eth' + str(ip['nic_dev_id']), []).append( ip )
      return dbag
  
subject: Fix a bug that would add updated control ip address instead of replace