#!/bin/bash

# -------------------------------------------------------------------------- #
# Copyright 2015, C12G Labs S.L.                                             #
#                                                                            #
# 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.                                             #
#--------------------------------------------------------------------------- #

[ -n "${PASSWORD}" ] || exit 0

if [ -z "${USERNAME}" ]
then
    USERNAME=root
fi

if ! getent passwd "${USERNAME}" > /dev/null 2>&1
then
    echo "User “${USERNAME}” does not exist" >&2
    exit 0
fi

chpasswd <<< "${USERNAME}:${PASSWORD}"