dhcpd-interfaces

# cat /var/lib/maas/dhcpd-interfaces && echo
eth0:0
#

dhcpd.conf

# cat /etc/maas/dhcpd.conf 
# WARNING: Do not edit /etc/maas/dhcpd.conf yourself.  MAAS will overwrite any
# changes made there.
#
# Instead, edit /etc/maas/templates/dhcp/dhcpd.conf.template and your changes
# will be present whenever MAAS rewrites the DHCP configuration.  Edit and save
# the nodegroup's configuration in MAAS to trigger an update.

option arch code 93 = unsigned integer 16; # RFC4578
option path-prefix code 210 = text; #RFC5071
subnet 172.16.1.0 netmask 255.255.255.0 {
       if option arch = 00:0E {
          filename "pxelinux.0";
          option path-prefix "ppc64el/";
       } elsif option arch = 00:07 {
          filename "bootx64.efi";
       } elsif option arch = 00:0C {
          filename "bootppc64.bin";
       } else {
          filename "pxelinux.0";
       }
       interface "eth0:0";
       ignore-client-uids true;
       option subnet-mask 255.255.255.0;
       option broadcast-address 172.16.1.255;
       option domain-name-servers 158.85.86.7;
       option domain-name "maas";
       option routers 172.16.1.1;
       option ntp-servers 91.189.94.4;
       range dynamic-bootp 172.16.1.100 172.16.1.200;
       class "PXE" {
          match if substring (option vendor-class-identifier, 0, 3) = "PXE";
          default-lease-time 30;
          max-lease-time 30;
       }
}

omapi-port 7911;
key omapi_key {
    algorithm HMAC-MD5;
    secret "ACTUALKEYHERE";
};
omapi-key omapi_key;

ifconfig

# ifconfig eth0:0
eth0:0    Link encap:Ethernet  HWaddr 06:e8:4f:53:78:f1  
          inet addr:172.16.1.1  Bcast:172.16.1.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1