86 lines
3 KiB
Text
86 lines
3 KiB
Text
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# Generated by confd
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router id {{getenv "IP"}}; # Use IPv4 address since router id is 4 octets, even in MP-BGP
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# Watch interface up/down events.
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protocol device {
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scan time 2; # Scan interfaces every 2 seconds
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}
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{{if eq "" (getenv "IP6")}}# IPv6 disabled on this node.
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{{else}}
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# Template for all BGP clients
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template bgp bgp_template {
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debug off;
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description "Connection to BGP peer";
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multihop;
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import all; # Import all routes, since we don't know what the upstream
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# topology is and therefore have to trust the ToR/RR.
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export all; # Export all.
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source address {{getenv "IP6"}}; # The local address we use for the TCP connection
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graceful restart; # See comment in kernel section about graceful restart.
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}
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{{$our_rr_key := printf "/rr_v6/%s" (getenv "IP6")}}
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{{if ls $our_rr_key}}{{$our_rr_data := json (getv $our_rr_key)}}
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# ------------- RR-to-RR full mesh -------------
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{{if ls "/rr_v6"}}
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{{range gets "/rr_v6/*"}}{{$data := json .Value}}{{$rr_ip := $data.ip}}
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{{$nums := split $rr_ip ":"}}{{$id := join $nums "_"}}
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# For RR {{$rr_ip}}
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{{if eq $rr_ip (getenv "IP6") }}# Skipping ourselves
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{{else if ne "" $rr_ip}}protocol bgp Mesh_{{$id}} from bgp_template {
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local as {{getv "/global/as_num"}};
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neighbor {{$rr_ip}} as {{getv "/global/as_num"}};
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}{{end}}{{end}}
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{{end}}
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# ------------- RR as a global peer -------------
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{{if ls "/global/peer_v6"}}
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{{range gets "/global/peer_v6/*"}}{{$data := json .Value}}
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{{if eq $data.ip (getenv "IP6")}}
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# This RR is a global peer with *all* calico nodes.
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{{range $cnode := lsdir "/host"}}
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{{$cnode_as_key := printf "/host/%s/as_num" $cnode}}
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{{$cnode_ip_key := printf "/host/%s/ip_addr_v6" $cnode}}{{$cnode_ip := getv $cnode_ip_key}}
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{{$nums := split $cnode_ip "."}}{{$id := join $nums "_"}}
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# Peering with Calico node {{$cnode}}
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protocol bgp Global_{{$id}} from bgp_template {
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local as {{$data.as_num}};
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neighbor {{$cnode_ip}} as {{if exists $cnode_as_key}}{{getv $cnode_as_key}}{{else}}{{getv "/global/as_num"}}{{end}};
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rr client;
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{{if $our_rr_data.cluster_id}}rr cluster id {{$our_rr_data.cluster_id}};{{end}}
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}
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{{end}}
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{{end}}
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{{end}}
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{{end}}
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# ------------- RR as a node-specific peer -------------
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{{range $cnode := lsdir "/host"}}
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{{$node_peers_key := printf "/host/%s/peer_v6" $cnode}}
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{{if ls $node_peers_key}}
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{{range $peer := gets (printf "%s/*" $node_peers_key)}}{{$data := json $peer.Value}}
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{{if eq $data.ip (getenv "IP")}}
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{{$cnode_as_key := printf "/host/%s/as_num" $cnode}}
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{{$cnode_ip_key := printf "/host/%s/ip_addr_v6" $cnode}}{{$cnode_ip := getv $cnode_ip_key}}
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{{$nums := split $cnode_ip "."}}{{$id := join $nums "_"}}
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# RR configured as a specific peer for calico node {{$peer.Key}}
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protocol bgp Node_{{$id}} from bgp_template {
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local as {{$data.as_num}};
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neighbor {{$cnode_ip}} as {{if exists $cnode_as_key}}{{getv $cnode_as_key}}{{else}}{{getv "/global/as_num"}}{{end}};
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rr client;
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{{if $our_rr_data.cluster_id}}rr cluster id {{$our_rr_data.cluster_id}};{{end}}
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}
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{{end}}
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{{end}}
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{{end}}
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{{end}}
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{{end}}
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{{end}}
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