ansible-dhcpd/templates/etc/default/isc-dhcp-server.j2

# This file is managed by Ansible, all changes will be lost

# Defaults for isc-dhcp-server initscript
# sourced by /etc/init.d/isc-dhcp-server
# installed at /etc/default/isc-dhcp-server by the maintainer scripts

#
# This is a POSIX shell fragment
#

# Path to dhcpd's config file (default: /etc/dhcp/dhcpd.conf).
#DHCPD_CONF=/etc/dhcp/dhcpd.conf

# Path to dhcpd's PID file (default: /var/run/dhcpd.pid).
#DHCPD_PID=/var/run/dhcpd.pid

# Additional options to start dhcpd with.
#	Don't use options -cf or -pf here; use DHCPD_CONF/ DHCPD_PID instead
OPTIONS="{{ dhcpd_server_options }}"

# On what interfaces should the DHCP server (dhcpd) serve DHCP requests?
#	Separate multiple interfaces with spaces, e.g. "eth0 eth1".
{% if dhcpd_interfaces is defined and dhcpd_interfaces %}
INTERFACES="{{ dhcpd_interfaces | join(' ') }}"
{% else %}
{% set dhcpd_tpl_interfaces = [] %}
{% for interface in ansible_interfaces %}
{% if interface != 'lo' and ((hostvars[inventory_hostname]['ansible_'+interface].ipv4 is defined and hostvars[inventory_hostname]['ansible_'+interface].ipv4) or (hostvars[inventory_hostname]['ansible_'+interface].ipv6 is defined and hostvars[inventory_hostname]['ansible_'+interface].ipv6)) %}
{% if dhcpd_tpl_interfaces.append(interface) %}{% endif %}
{% endif %}
{% endfor %}
INTERFACES="{{ dhcpd_tpl_interfaces | join(' ') }}"
{% endif %}