VRRP on FRRouting

docs/module/gateway.md

@@ -25,6 +25,7 @@ The module is supported on these platforms:
 | Cisco Nexus OS        |  ❌  | ✅  | ✅  |
 | Cumulus Linux         | ✅  | ✅  | ✅  |
 | Dell OS10             | ✅ [❗](caveats-os10) | ✅ [❗](caveats-os10) | ✅ [❗](caveats-os10)  |
+| FRRouting             | ❌   | ✅  | ✅  |
 | Nokia SR OS           | ✅  | ✅  | ✅  |
 | Nokia SR Linux        | ✅  | ❌  | ❌  |
 | VyOS                  | ❌  | ✅  | ✅  |

netsim/ansible/templates/gateway/frr.j2

@@ -0,0 +1,17 @@
+#!/bin/bash
+#
+set -e # Exit immediately when any command fails
+#
+{% for intf in interfaces if intf.gateway.protocol|default('none') == 'vrrp' %}
+{%   for afm in ['ipv4','ipv6'] if afm in intf.gateway %}
+{%     set v_if = 'vrrp%s-%s-%s'|format('6' if afm == 'ipv6' else '',intf.ifindex,intf.gateway.vrrp.group) %}
+{%     set v_mac = '00:00:5e:00:%02x:%02x'|format(2 if afm == 'ipv6' else 1,intf.gateway.vrrp.group) %}
+if [ ! -e /sys/class/net/{{ v_if }} ]; then
+  ip link add {{ v_if }} link {{ intf.ifname }} type macvlan mode bridge
+  ip link set dev {{ v_if }} address {{ v_mac }}
+  ip addr add {{ intf.gateway[afm] }} dev {{ v_if }}
+  ip link set dev {{ v_if }} up
+fi
+{%   endfor %}
+{% endfor %}
+{% include 'frr.vrrp-config.j2' %}

netsim/ansible/templates/gateway/frr.vrrp-config.j2

@@ -0,0 +1,19 @@
+#!/bin/bash
+cat >/tmp/vrrp_config <<CONFIG
+{% for intf in interfaces if intf.gateway.protocol|default('') == 'vrrp' %}
+interface {{ intf.ifname }}
+  vrrp {{ intf.gateway.vrrp.group }} shutdown
+{%     if 'priority' in intf.gateway.vrrp %}
+  vrrp {{ intf.gateway.vrrp.group }} priority {{ intf.gateway.vrrp.priority }}
+{%     endif %}
+{%     if intf.gateway.vrrp.preempt|default(False) %}
+  vrrp {{ intf.gateway.vrrp.group }} preempt
+{%     endif %}
+{%   for af in 'ipv4','ipv6' if af in intf.gateway %}
+  vrrp {{ intf.gateway.vrrp.group }} {{ af|replace('ipv4','ip') }} {{ intf.gateway[af]|ipaddr('address') }}
+{%   endfor %}
+  no vrrp {{ intf.gateway.vrrp.group }} shutdown
+{% endfor %}
+do write
+CONFIG
+vtysh -f /tmp/vrrp_config

netsim/ansible/templates/initial/frr/daemons.j2

@@ -8,6 +8,7 @@
     'ripv2':['ripd','ripngd'],
     'isis':['isisd'],
     'vrf':['bgpd'],
+    'gateway':['vrrpd'],
     'mpls':['ldpd'] } %}
 {% for m in module|default([]) if modlist[m] is defined %}
 {%   for frr_m in [modlist[m]]|flatten %}

netsim/devices/frr.yml

@@ -63,6 +63,8 @@ features:
   evpn:
     irb: true
     asymmetrical_irb: True
+  gateway:
+    protocol: [ vrrp ]
   isis:
     import: [ bgp, ripv2, ospf, connected ]
     unnumbered:

netsim/templates/provider/clab/frr/daemons.j2

@@ -95,6 +95,7 @@ frr_profile="datacenter"
     'ripv2':['ripd','ripngd'],
     'isis':['isisd'],
     'vrf':['bgpd'],
+    'gateway':['vrrpd'],
     'mpls':['ldpd'] } %}
 {% for m in module|default([]) if modlist[m] is defined %}
 {%   for frr_m in modlist[m] %}