Uploaded from github, added FreeBSD VMs support

vm_example_scripts/ingress_files/bird.conf

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+# This is a minimal configuration file, which allows the bird daemon to start
+# but will not cause anything else to happen.
+#
+# Please refer to the documentation in the bird-doc package or BIRD User's
+# Guide on http://bird.network.cz/ for more information on configuring BIRD and
+# adding routing protocols.
+
+# Change this into your BIRD router ID. It's a world-wide unique identification
+# of your router, usually one of router's IPv4 addresses.
+router id 192.168.1.50;
+
+log syslog all;
+
+# controlplane
+protocol bgp {
+  	local 192.168.1.50 as 65000;
+	neighbor 192.168.1.47 as 65000;
+	direct;
+    import filter {
+      if ( net ~ [ 172.16.0.0/16{26,26} ] ) then accept;
+    };
+    export none;
+}
+
+# worker1
+protocol bgp {
+  	local 192.168.1.50 as 65000;
+	neighbor 192.168.1.48 as 65000;
+	direct;
+    import filter {
+      if ( net ~ [ 172.16.0.0/16{26,26} ] ) then accept;
+    };
+    export none;
+}
+
+# worker2
+protocol bgp {
+  	local 192.168.1.50 as 65000;
+	neighbor 192.168.1.49 as 65000;
+	direct;
+    import filter {
+      if ( net ~ [ 172.16.0.0/16{26,26} ] ) then accept;
+    };
+    export none;
+}
+
+# The Kernel protocol is not a real routing protocol. Instead of communicating
+# with other routers in the network, it performs synchronization of BIRD's
+# routing tables with the OS kernel.
+protocol kernel {
+	scan time 60;
+	export all;   # Actually insert routes into the kernel routing table
+}
+
+# The Device protocol is not a real routing protocol. It doesn't generate any
+# routes and it only serves as a module for getting information about network
+# interfaces from the kernel. 
+protocol device {
+	scan time 60;
+}