VPC : static route, add route table in cloud-early-config

patches/systemvm/debian/config/etc/init.d/cloud-early-config

@@ -600,7 +600,12 @@ EOF
   fi
 
   ip route delete default
+  # create route table for static route
 
+  sudo echo "251 static_route_back" >> /etc/iproute2/rt_tables 2>/dev/null
+  sudo echo "252 static_route" >> /etc/iproute2/rt_tables 2>/dev/null
+  sudo ip rule add from $VPCCIDR table static_route_back 2>/dev/null
+  sudo ip rule add from $VPCCIDR table static_route 2>/dev/null
 
   sed -i  /gateway/d /etc/hosts
 
@@ -951,6 +956,9 @@ for i in $CMDLINE
       vmpassword)
         VM_PASSWORD=$VALUE
         ;;
+      vpccidr)
+        VPCCIDR=$VALUE
+        ;;
     esac
 done
 }