78 lines
3.0 KiB
Django/Jinja
78 lines
3.0 KiB
Django/Jinja
[group:dhcpmon]
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programs=
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{%- set add_preceding_comma = { 'flag': False } %}
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{% set monitor_instance = { 'flag': False } %}
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{% for vlan_name in VLAN_INTERFACE %}
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{% if VLAN and vlan_name in VLAN and 'dhcp_servers' in VLAN[vlan_name] and VLAN[vlan_name]['dhcp_servers']|length > 0 %}
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{% set _dummy = monitor_instance.update({'flag': True}) %}
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{%- endif %}
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{% if VLAN and vlan_name in VLAN and 'dhcpv6_servers' in VLAN[vlan_name] and VLAN[vlan_name]['dhcpv6_servers']|length > 0 %}
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{% set _dummy = monitor_instance.update({'flag': True}) %}
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{%- endif %}
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{% if monitor_instance.flag %}
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{% if add_preceding_comma.flag %},{% endif %}
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{% set _dummy = add_preceding_comma.update({'flag': True}) %}
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dhcpmon-{{ vlan_name }}
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{%- set _dummy = monitor_instance.update({'flag': False}) %}
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{%- endif %}
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{% endfor %}
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{# Create a program entry for each DHCP MONitor instance #}
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{% set relay_for_ipv4 = { 'flag': False } %}
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{% set relay_for_ipv6 = { 'flag': False } %}
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{% for vlan_name in VLAN_INTERFACE %}
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{# Check DHCPv4 agents #}
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{% if VLAN and vlan_name in VLAN and 'dhcp_servers' in VLAN[vlan_name] and VLAN[vlan_name]['dhcp_servers']|length > 0 %}
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{% for dhcp_server in VLAN[vlan_name]['dhcp_servers'] %}
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{% if dhcp_server | ipv4 %}
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{% set _dummy = relay_for_ipv4.update({'flag': True}) %}
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{% endif %}
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{% endfor %}
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{% endif %}
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{# Check DHCPv6 agents #}
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{% if VLAN and vlan_name in VLAN and 'dhcpv6_servers' in VLAN[vlan_name] and VLAN[vlan_name]['dhcpv6_servers']|length > 0 %}
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{% for dhcpv6_server in VLAN[vlan_name]['dhcpv6_servers'] %}
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{% if dhcpv6_server | ipv6 %}
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{% set _dummy = relay_for_ipv6.update({'flag': True}) %}
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{% endif %}
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{% endfor %}
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{% endif %}
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{% if relay_for_ipv4.flag or relay_for_ipv6.flag %}
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[program:dhcpmon-{{ vlan_name }}]
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{# We treat this VLAN as a downstream interface (-id), as we only want to listen for requests #}
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command=/usr/sbin/dhcpmon -id {{ vlan_name }}
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{#- Dual ToR Option #}
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{% if 'subtype' in DEVICE_METADATA['localhost'] and DEVICE_METADATA['localhost']['subtype'] == 'DualToR' %} -u Loopback0{% endif -%}
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{#- We treat all other interfaces as upstream interfaces (-iu), as we only want to listen for replies #}
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{% for (name, prefix) in VLAN_INTERFACE|pfx_filter %}
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{% if prefix | ipv4 and name != vlan_name %} -iu {{ name }}{% endif -%}
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{% endfor %}
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{% for (name, prefix) in INTERFACE|pfx_filter %}
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{% if prefix | ipv4 %} -iu {{ name }}{% endif -%}
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{% endfor %}
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{% for (name, prefix) in PORTCHANNEL_INTERFACE|pfx_filter %}
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{% if prefix | ipv4 %} -iu {{ name }}{% endif -%}
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{% endfor %}
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{% if MGMT_INTERFACE %}
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{% for (name, prefix) in MGMT_INTERFACE|pfx_filter %}
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{% if prefix | ipv4 %} -im {{ name }}{% endif -%}
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{% endfor %}
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{% endif %}
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priority=4
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autostart=false
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autorestart=false
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stdout_logfile=syslog
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stderr_logfile=syslog
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dependent_startup=true
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dependent_startup_wait_for=
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{%- if relay_for_ipv4.flag %}isc-dhcpv4-relay-{{ vlan_name }}:running {% endif %}
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{% if relay_for_ipv6.flag %}dhcp6relay:running{% endif %}
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{% set _dummy = relay_for_ipv4.update({'flag': False}) %}
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{% set _dummy = relay_for_ipv6.update({'flag': False}) %}
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{% endif %}
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{% endfor %}
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