RR client support in minigraph for FRR

A=

Author: Nikos Triantafillis

dockers/docker-fpm-frr/bgpd.conf.j2

@@ -57,12 +57,18 @@ router bgp {{ DEVICE_METADATA['localhost']['bgp_asn'] }}
 {% if neighbor_addr | ipv4 %}
   address-family ipv4
     neighbor {{ neighbor_addr }} activate
+{% if bgp_session['rrclient'] != 0 %}
+    neighbor {{ bgp_session['addr'] }} route-reflector-client
+{% endif %}
     maximum-paths 64
   exit-address-family
 {% endif %}
 {% if neighbor_addr | ipv6 %}
   address-family ipv6
     neighbor {{ neighbor_addr }} activate
+{% if bgp_session['rrclient'] != 0 %}
+    neighbor {{ bgp_session['addr'] }} route-reflector-client
+{% endif %}
     maximum-paths 64
   exit-address-family
 {% endif %}

src/sonic-config-engine/minigraph.py

@@ -274,6 +274,10 @@ def parse_cpg(cpg, hname):
             for router in child.findall(str(QName(ns1, "BGPRouterDeclaration"))):
                 asn = router.find(str(QName(ns1, "ASN"))).text
                 hostname = router.find(str(QName(ns1, "Hostname"))).text
+                if router.find(str(QName(ns1, "RRClient"))):
+                    rrclient = '1'
+                else:
+                    rrclient = '0'
                 if hostname == hname:
                     myasn = int(asn)
                     peers = router.find(str(QName(ns1, "Peers")))
@@ -292,6 +296,7 @@ def parse_cpg(cpg, hname):
                         bgp_session = bgp_sessions[peer]
                         if hostname == bgp_session['name']:
                             bgp_session['asn'] = int(asn)
+                        bgp_session['rrclient'] = int(rrclient)
 
     return bgp_sessions, myasn, bgp_peers_with_range