addon-context-linux/base/etc/one-context.d/20-set-username-password

#!/bin/bash

# -------------------------------------------------------------------------- #
# Copyright 2010-2016, OpenNebula Systems                                    #
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# http://www.apache.org/licenses/LICENSE-2.0                                 #
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[ -n "${PASSWORD}${CRYPTED_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

if [ -n "${PASSWORD}" ]
then
    chpasswd <<< "${USERNAME}:${PASSWORD}"
elif [ -n "${CRYPTED_PASSWORD}" ]
then
    usermod -p "${CRYPTED_PASSWORD}" "${USERNAME}"
fi