sonic-buildimage/dockers/docker-dhcp-relay/dhcp-relay.programs.j2

[group:dhcp-relay]
programs=
{%- set add_preceding_comma = { 'flag': False } %}
{% for vlan_name in vlan_list %}
{% if VLAN and vlan_name in VLAN and VLAN[vlan_name]['dhcp_servers'] %}
{% if add_preceding_comma.flag %},{% endif %}
{% set _dummy = add_preceding_comma.update({'flag': True}) %}
isc-dhcpv4-relay-{{ vlan_name }}
{%- endif %}
{# Append DHCPv6 agents #}
{% if VLAN and vlan_name in VLAN and 'dhcpv6_servers' in VLAN[vlan_name] %}
{% if add_preceding_comma.flag %},{% endif %}
{% set _dummy = add_preceding_comma.update({'flag': True}) %}
dhcp6relay
{%- endif %}
{% endfor %}