Linux backup with LFTP

LFTP is a sophisticated FTP client, and a file transfer program supporting a number of network protocols.

This configuration does not provide incremental backups.

Preliminaries

In these scripts are assumed these default values:

  • $TOMCAT_HOME value is "/home/openkm/tomcat"
  • OpenKM database is named "okmdb".
  • OpenKM database password value is "*secret*".
  • OpenKM start & stop service script location is "/etc/init.d/tomcat"

Sample script

As a good practice the backup should be done by root user.

The script below does a backup to USB and the application database is MySQL.

USB disk mount point can be defined in /etc/fstab as:

/dev/sdb1    /mnt/backup    ext4    defaults    0    0

These are the global script sections:

  • Global var configuration under ## BEGIN CONFIG ## section.
  • Checking user root under # Check root user section.
  • Deleting older database backup # Delete older local database backup  section.
  • Stop application ( optional section ) under  # Stop tomcat section.
  • Clean logs ( optional section ) under # Clean logs section.
  • Backup the database to the filesystem under #Backup database section.
  • Backup repository and database dump to backup destination under #Backup and purge old backups section.
  • Start application ( optional section ) # Start tomcat section.

Configuration parameters explanation:

ParameterDescription

HOST

The server host name.

NOW

Actual date in format 'dd-MM-yyyy'.

DATABASE_PASS

The database password.

 

The data base user to do backup is always root user.

OPENKM_DB

The application database name.

Usually will be named "okmdb".

OPENKM_HOME

The openkm home folder.

TOMCAT_HOME

The tomcat home folder.

Usually into OPENKM_HOME folder.

DATABASE_EXP

The database dump folder.

Usually into the same server.

BACKUP_DIR

 FTP Backup destination.

Create a backup script /root/backup.sh

sudo su

vim /root/backup.sh

#!/bin/bash
#
## BEGIN CONFIG ##
HOST=$(uname -n)
NOW=$(date +"%d-%m-%Y")
DATABASE_PASS="*secret*"
OPENKM_DB="okmdb"
OPENKM_HOME="/home/openkm"
TOMCAT_HOME="$OPENKM_HOME/tomcat"
DATABASE_EXP="$OPENKM_HOME/db"
BACKUP_DIR="ftp://user:password@ftp.server/backup"
## END CONFIG ##

# Check root user 
if [ $(id -u) != 0 ]; then echo "You should run this script as root"; exit; fi

# Delete older local database backup  
echo -e "### BEGIN: $(date +"%x %X") ###\n"
rm -rf $DATABASE_EXP
mkdir -p $DATABASE_EXP
 
# Stop Tomcat
/etc/init.d/tomcat stop
 
# Clean logs
#echo "Clean Tomcat temporal files."
#rm -rf $TOMCAT_HOME/logs/*
#rm -rf $TOMCAT_HOME/temp/*
#rm -rf $TOMCAT_HOME/work/Catalina/localhost
 
# Backup database
if [ -n "$DATABASE_PASS" ]; then
  echo "* Backuping MySQL data from $OPENKM_DB..."
  mysqldump -h localhost -u root -p$DATABASE_PASS $OPENKM_DB > $DATABASE_EXP/mysql_$OPENKM_DB.sql
  echo "-------------------------------------";
fi
 
# Backup and purge old backups
lftp $BACKUP_DIR -e "mkdir $NOW; mirror --reverse $OPENKM_HOME $NOW; exit"
 
# Start Tomcat
/etc/init.d/tomcat start
echo -e "\n### END: $(date +"%x %X") ###"

Configure crontab

To install the cron job, run:

$ sudo mkdir /root/logs

$ sudo crontab -e

Add these lines according to your personal configuration:

MAILTO=nomail@openkm.com
@daily /root/backup.sh | tee /root/logs/backup.$(date +\%Y.\%m.\%d_\%H.\%M.\%S).log 

More information at Crontab quick reference

If you want to be notified by mail you should install "postfix" service in your server.