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save_config.sh
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save_config.sh
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#!/bin/sh
#####
# Backup the TrueNAS/FreeNAS configuration database and password secret encryption files
#####
# REQUIRED: Specify the dataset on your system where you want the configuration files copied.
# Don't include the trailing slash.
# Example: configdir="/mnt/tank/sysadmin/config"
configdir=""
# Remove this code once you've defined configdir above... :-)
if [ -z "${configdir}" ]; then
echo "Edit script and specify the target directory ('configdir') before using $0"
exit 2
fi
# Optional: Set non-zero 'do_tar' flag to have both files stored in a tarball as typically
# needed when restoring a configuration.
do_tar=1
# Optional: specify your email address here if you want to receive a notification message.
notifyemail=""
# Optional: specify the short name of your ESXi host if you are running FreeNAS
# as a VM and you want to back up the ESXi host's configuration
esxihost=""
# Get the date and version of TrueNAS/FreeNAS:
rundate=$(date)
osvers=$(grep -i truenas /etc/version)
if [ -z "${osvers}" ]; then
osvers=$(grep -i freenas /etc/version)
if [ -z "${osvers}" ]; then
osvers="UNKNOWN"
else
osvers="FreeNAS"
fi
else
osvers="TrueNAS"
fi
# Form a unique, timestamped filename for the backup configuration database and tarball
P1=$(hostname -s)
P2=$(< /etc/version sed -e 's/)//;s/(//;s/ /-/' | tr -d '\n')
P3=$(date +%Y%m%d%H%M%S)
fnconfigdest_base="$P1"-"$P2"-"$P3"
fnconfigdestdb="${configdir}"/"${fnconfigdest_base}".db
fnconfigtarball="${configdir}"/"${fnconfigdest_base}".tar
# Copy the source database and password encryption secret key to the destination:
echo "Backup ${osvers} configuration database file: ${fnconfigdestdb}"
cp -f /data/pwenc_secret "$configdir"
/usr/local/bin/sqlite3 /data/freenas-v1.db ".backup main '${fnconfigdestdb}'"
l_status=$?
# Validate the configuration file and create tarball:
if [ $l_status -eq 0 ]; then
dbstatus=$(sqlite3 "$fnconfigdestdb" "pragma integrity_check;")
printf 'sqlite3 status: [%s]\n' "${dbstatus}"
if [ "${dbstatus}" = "ok" ]; then
l_status=0
if [ $do_tar -ne 0 ]; then
# Save the config DB w/ its original name in the tarball -- makes restoring them easier:
cp -f "${fnconfigdestdb}" "${configdir}"/freenas-v1.db
tar -cvf "${fnconfigtarball}" -C "${configdir}" freenas-v1.db pwenc_secret
l_status=$?
printf 'tar status: [%s]\n' "${l_status}"
fi
else
l_status=1
fi
fi
if [ $l_status -eq 0 ]; then
echo "Success backing up configuration files to directory ${configdir}"
else
echo "Error backing up configuration files to directory ${configdir}"
fi
l_status=$?
# Backup the VMware ESXi host configuration:
if [ -n "${esxihost}" ]; then
esxihostname=$(ssh root@"${esxihost}" hostname)
esxiversion=$(ssh root@"${esxihost}" uname -a | sed -e "s|VMkernel ||;s|$esxihostname ||")
esxiconfig_url=$(ssh root@"${esxihost}" vim-cmd hostsvc/firmware/backup_config | awk '{print $7}' | sed -e "s|*|$esxihostname|")
esxiconfig_date=$(date +%Y%m%d%H%M%S)
esxiconfig_file="${configdir}"/"${esxihost}"-configBundle-"${esxiconfig_date}".tgz
echo "Downloading $esxiconfig_url to $esxiconfig_file"
wget --no-check-certificate --output-document="${esxiconfig_file}" "${esxiconfig_url}"
fi
# Send email notification if indicated:
if [ -n "${notifyemail}" ]; then
freenashostuc=$(hostname -s | tr '[:lower:]' '[:upper:]')
freenashostname=$(hostname)
freenasversion=$(< /etc/version sed -e 's/)//;s/(//;s/ /-/' | tr -d '\n')
boundary="===== MIME boundary; ${osvers} server ${freenashostname} ====="
logfile="/tmp/save_config.tmp"
if [ $l_status -eq 0 ]; then
subject="${osvers} configuration saved on server ${freenashostuc}"
else
subject="${osvers} configuration backup failed on server ${freenashostuc}"
fi
printf "%s\n" "To: ${notifyemail}
Subject: ${subject}
Mime-Version: 1.0
Content-Type: multipart/mixed; boundary=\"$boundary\"
--${boundary}
Content-Type: text/html; charset=\"US-ASCII\"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline
<html><head></head><body><pre style=\"font-size:14px; white-space:pre\">" > ${logfile}
(
if [ $l_status -eq 0 ]; then
echo "Configuration file saved successfully on ${rundate}"
else
echo "Configuration backup failed with status=${l_status} on ${rundate}"
fi
echo ""
echo "--- ${osvers} ---"
echo "Server: ${freenashostname}"
echo "Version: ${freenasversion}"
echo "Files:"
echo " ${fnconfigdestdb}"
echo " ${configdir}/pwenc_secret"
if [ "$do_tar" -ne 0 ]; then
echo " ${fnconfigtarball}"
fi
if [ -n "${esxihost}" ]; then
echo ""
echo "--- ESXi ---"
echo "Server: ${esxihostname}"
echo "Version: ${esxiversion}"
echo "File: ${esxiconfig_file}"
fi
) >> ${logfile}
printf "%s\n" "</pre></body></html>
--${boundary}--" >> ${logfile}
sendmail -t -oi < ${logfile}
rm ${logfile}
fi