Efforts to make ucloud a python package

ucloud/network/create-bridge.sh

@@ -0,0 +1,24 @@
+#!/bin/sh
+
+if [ $# -ne 3 ]; then
+    echo "$0 brid dev ip"
+    echo "f.g. $0 100 vxlan100 fd00:/64"
+    echo "Missing arguments" >&2
+    exit 1
+fi
+
+brid=$1; shift
+dev=$1; shift
+ip=$1; shift
+bridge=br${brid}
+
+sysctl net.ipv6.conf.all.forwarding=1 > /dev/null
+
+if ! ip link show $bridge > /dev/null 2> /dev/null; then
+    ip link add name $bridge type bridge
+    ip link set $bridge up
+    ip link set $dev master $bridge
+    ip address add $ip dev $bridge
+fi
+
+echo $bridge