tripleo-ci/scripts/os-make-password

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#!/bin/bash
#
# Copyright 2013 Hewlett-Packard Development Company, L.P.
# All Rights Reserved.
#
# 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.
set -eu
set -o pipefail
SCRIPT_NAME=$(basename $0)
SCRIPT_HOME=$(dirname $0)
function show_options {
echo "Usage: $SCRIPT_NAME"
echo
echo "Create a random password."
echo
echo "This outputs a random password."
echo
echo "The password is made by taking a uuid and passing it though sha1sum."
echo "We may change this in future to gain more entropy."
echo
exit $1
}
TEMP=`getopt -o h -n $SCRIPT_NAME -- "$@"`
if [ $? != 0 ]; then
echo "Terminating..." >&2;
exit 1;
fi
# Note the quotes around `$TEMP': they are essential!
eval set -- "$TEMP"
while true ; do
case "$1" in
-h) show_options 0;;
--) shift ; break ;;
*) echo "Error: unsupported option $1." ; exit 1 ;;
esac
done
EXTRA=${1:-""}
if [ -n "$EXTRA" ]; then
show_options 1
fi
uuidgen | sha1sum | awk '{print $1}'