Performs a backup of the entire slapd DIT. Can be run from cron

slapd-backup.sh

#!/bin/bash
print_version() {
    cat <<EOF
####################################################################################
#
#  Author:         Lucas Halbert <[email protected]>
#  Date:           01.23.2018
#  Last Edited:    01.23.2018
#  Version:        2018.01.23
#  Description:    Performs a backup of the entire slapd DIT. Can be run from cron
#  License:        BSD 3-Clause License
#
#  Copyright (c) 2018, Lucas Halbert
#  All rights reserved.
#  
#  Redistribution and use in source and binary forms, with or without
#  modification, are permitted provided that the following conditions are met:
#  
#  * Redistributions of source code must retain the above copyright notice, this
#    list of conditions and the following disclaimer.
#  
#  * Redistributions in binary form must reproduce the above copyright notice,
#    this list of conditions and the following disclaimer in the documentation
#    and#or other materials provided with the distribution.
#  
#  * Neither the name of the copyright holder nor the names of its
#    contributors may be used to endorse or promote products derived from
#    this software without specific prior written permission.
#  
#  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
#  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
#  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
#  DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
#  FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
#  DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
#  SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
#  CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
#  OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
#  OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
####################################################################################
EOF
}

print_changelog() {
    cat <<EOF
####################################################################################
#
#  Revisions:   01/23/2018  Initial Draft
#
####################################################################################
EOF
}


DATE=$(/bin/date +%Y%m%dT%H%M%S)
HOST=$(/bin/hostname)
SLAPD_CONF="/opt/work/openldap/etc/openldap/slapd.conf"
SUDO_CMD="/bin/sudo -S -u ldap"
SLAPCAT_BIN="/opt/work/openldap/sbin/slapcat"
GZIP_BIN="/bin/gzip"
CHOWN_BIN="/bin/chown"
CHMOD_BIN="/bin/chmod"
FIND_BIN="/bin/find"
LOGGER_BIN="/bin/logger"
BACKUP_DIR="/opt/work/backups/slapd"
BACKUP_PATH="${BACKUP_DIR}/${HOST}-${DATE}.ldif.gz"



echo "INFO: Starting slapd-backup script..."
${LOGGER_BIN} -t slapd-backup "INFO: Starting slapd-backup script..."


# Run the backup
echo "INFO: Backing up directory tree to ${BACKUP_PATH}"
${LOGGER_BIN} -t slapd-backup "INFO: Backing up directory tree to ${BACKUP_PATH}"
${SUDO_CMD} ${SLAPCAT_BIN} -f ${SLAPD_CONF} | ${GZIP_BIN} > ${BACKUP_PATH}

if [ $? -gt 0 ]; then
    echo "ERROR: An error occurred while backing up the directory tree"
    ${LOGGER_BIN} -t slapd-backup "ERROR: An error occurred while backing up the directory tree"
    exit 10
else
    echo "INFO: Directory tree backup succeeded"
    ${LOGGER_BIN} -t slapd-backup "INFO: Directory tree backup succeeded"
fi


# Ensure ownership is correct
echo "INFO: Correcting ownership of backup file"
${LOGGER_BIN} -t slapd-backup "INFO: Correcting ownership of backup file"
${CHOWN_BIN} root:ldap ${BACKUP_PATH}

# Ensure permissions are correct
echo "INFO: Correcting permissions of backup file"
${LOGGER_BIN} -t slapd-backup "INFO: Correcting permissions of backup file"
${CHMOD_BIN} 640 ${BACKUP_PATH}

# Clean up backups older than 90 days
echo "INFO: Cleaning up backup files older than 90 days"
${LOGGER_BIN} -t slapd-backup "INFO: Cleaning up backup files older than 90 days"
${FIND_BIN} ${BACKUP_DIR} -name '*.gz' -ctime +90 -delete


echo "INFO: Shutting down slapd-backup script..."
${LOGGER_BIN} -t slapd-backup "INFO: Shutting down slapd-backup script..."