Difference between revisions of "Backup scripts"

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Line 48: Line 48:
 
   echo "-------------------------------------";
 
   echo "-------------------------------------";
 
fi
 
fi
 +
</source>
 +
 +
This script will export all databases from a PostgreSQL installation:
 +
 +
<source lang="bash">
 +
#!/bin/bash
 +
#
 +
## BEGIN CONFIG ##
 +
DATABASE_EXP="/home/openkm/db"
 +
## END CONFIG ##
 +
 +
rm -rf $DATABASE_EXP
 +
mkdir -p $DATABASE_EXP
 +
 +
# Backup de PostgreSQL
 +
POSTGRESQL_DBS=$(su postgres -c "psql -l" | awk '(NR > 2) && (/[a-zA-Z0-9]+[ ]+[|]/) && ($1 !~ /template[0-1]/) && ($1 != "postgres") { print $1 }');
 +
 +
for DB in $POSTGRESQL_DBS ; do
 +
  echo "* Backuping PostgreSQL data from $DB..."
 +
  su postgres -c "pg_dump -Fc -b $DB" > $DATABASE_EXP/pg_$DB.dmp
 +
done
 
</source>
 
</source>
  

Revision as of 15:54, 14 November 2012

These backup scripts use rsync to minimize network load and creates incremental backups, preserving last four backups. For more info, read http://www.mikerubel.org/computers/rsync_snapshots/. Also recommend the article DAR differential backup mini-howto.

To install the cron job, run:

$ sudo crontab -e

And add these lines according to your personal configuration:

MAILTO=nomail@openkm.com
@weekly /root/backup.sh | tee -a /root/backup.log

Or, if you want to separate log reports by date:

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

Nota clasica.png MAILTO may also be used to direct mail to multiple recipients by separating recipient users with a comma.

This script will export all databases from a MySQL installation:

#!/bin/bash
#
## BEGIN CONFIG ##
MYSQL_PASS=""
DATABASE_EXP="/home/openkm/db"
## END CONFIG ##

rm -rf $DATABASE_EXP
mkdir -p $DATABASE_EXP

# Backup de MySQL
if [ -n "$MYSQL_PASS" ]; then
  MYSQL_DBS=$(mysqlshow -h localhost -u root -p$MYSQL_PASS | awk '(NR > 2) && (/[a-zA-Z0-9]+[ ]+[|]/) { print $2 }');
 
  for DB in $MYSQL_DBS; do
    if [[ $DB != "mysql" && $DB != "test" && $DB != "information_schema" && $DB != "performance_schema" ]]; then
      echo "* Backuping MySQL data from $DB..."
      mysqldump -h localhost -u root -p$MYSQL_PASS $DB > $DATABASE_EXP/mysql_$DB.sql
    fi
  done
  echo "-------------------------------------";
fi

This script will export all databases from a PostgreSQL installation:

#!/bin/bash
#
## BEGIN CONFIG ##
DATABASE_EXP="/home/openkm/db"
## END CONFIG ##

rm -rf $DATABASE_EXP
mkdir -p $DATABASE_EXP

# Backup de PostgreSQL
POSTGRESQL_DBS=$(su postgres -c "psql -l" | awk '(NR > 2) && (/[a-zA-Z0-9]+[ ]+[|]/) && ($1 !~ /template[0-1]/) && ($1 != "postgres") { print $1 }');
 
for DB in $POSTGRESQL_DBS ; do
  echo "* Backuping PostgreSQL data from $DB..."
  su postgres -c "pg_dump -Fc -b $DB" > $DATABASE_EXP/pg_$DB.dmp
done

For more information take a look at Crontab quick reference