sonic-buildimage/dockers/docker-dhcp-relay/base_image_files/monit_dhcp_relay.j2

{# This template file is used to generate Monit configuration file of dhcp_relay container -#}

################################################################################
## Monit configuration file for dhcp_relay container
## process list:
##  dhcrelay
################################################################################
{# If our configuration has VLANs... #}
{%- if VLAN_INTERFACE -%}
 {# Count how may VLANs require a DHCP relay agent... #}
 {%- set num_relays = namespace(count=0) -%}
  {%- for vlan_name in VLAN_INTERFACE -%}
    {%- if VLAN and vlan_name in VLAN and 'dhcp_servers' in VLAN[vlan_name] and VLAN[vlan_name]['dhcp_servers']|length > 0 -%}
      {%- set num_relays.count = num_relays.count + 1 -%}
    {%- endif -%}
  {%- endfor -%}
  {# if one or more VLANs require DHCP relay agent #}
  {%- if num_relays.count > 0 -%}
    {%- set relay_for_ipv4 = namespace(flag=False) -%}
    {%- for vlan_name in VLAN_INTERFACE -%}
      {%- if VLAN and vlan_name in VLAN and 'dhcp_servers' in VLAN[vlan_name] and VLAN[vlan_name]['dhcp_servers']|length >0 -%}
        {%- for dhcp_server in VLAN[vlan_name]['dhcp_servers'] -%}
          {%- if dhcp_server | ipv4 -%}
            {%- set relay_for_ipv4.flag = True -%}
          {%- endif -%}
        {%- endfor -%}
        {%- if relay_for_ipv4.flag -%}
          {%- set relay_for_ipv4 = False -%}
          {# Check the running status of each DHCP relay agent instance #}
check program dhcp_relay|dhcrelay_{{ vlan_name }} with path "/usr/bin/process_checker dhcp_relay /usr/sbin/dhcrelay -d -m discard -a %h:%p %P --name-alias-map-file /tmp/port-name-alias-map.txt -id {{ vlan_name }}"
    if status != 0 for 5 times within 5 cycles then alert repeat every 1 cycles
        {%- endif -%}
      {%- endif -%}
    {%- endfor -%}
  {%- endif -%}
{%- endif -%}