gh-47: Fix for Ubuntu 14.04 loopback device

base.one/etc/one-context.d/11-fix-loopback

@@ -0,0 +1,28 @@
+#!/bin/bash
+
+# -------------------------------------------------------------------------- #
+# Copyright 2010-2016, OpenNebula Systems                                    #
+#                                                                            #
+# Licensed under the Apache License, Version 2.0 (the "License"); you may    #
+# not use this file except in compliance with the License. You may obtain    #
+# a copy of the License at                                                   #
+#                                                                            #
+# http://www.apache.org/licenses/LICENSE-2.0                                 #
+#                                                                            #
+# Unless required by applicable law or agreed to in writing, software        #
+# distributed under the License is distributed on an "AS IS" BASIS,          #
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.   #
+# See the License for the specific language governing permissions and        #
+# limitations under the License.                                             #
+#--------------------------------------------------------------------------- #
+
+# Checks if the loopback interface is not configured and adds 127.0.0.1.
+# This fixes a problem with old Ubuntu 14.04 distros that leave loopback
+# IP unconfigured when restarting network. This does not happen with
+# Ubuntu 14.04.4
+
+ip_info="$(ip -o -4 address show lo)"
+
+if [ -z "$ip_info" ]; then
+    ip addr add 127.0.0.1/8 dev lo
+fi