Added MySQL (or equivalent) backup script for databases.

scripts/mysql-backup-databases

+#!/bin/sh
+#############################################################################
+# Filename: mysql-backup-databases
+# Purpose: To dump all of the mysql databases, compress them, and keep
+#          a few dumps for some time.
+# Author: Colan Schwartz
+# Licence: GPLv3
+#############################################################################
+
+# Prevent accessing unset variables
+set -u
+
+# Credential file
+CRED_FILE=/etc/mysql/debian.cnf
+
+# mysqldump opts
+OPTS="--single-transaction --skip-lock-tables"
+
+CACHETABLES="cache cache_admin_menu cache_apachesolr cache_block cache_bootstrap cache_content cache_ds_panels cache_field cache_filter cache_form cache_htmlpurifier cache_location cache_luceneapi cache_menu cache_metatag cache_page cache_path cache_rules cache_token cache_update cache_variable cache_views cache_views_data ctools_css_cache ctools_object_cache views_data_export_object_cache views_object_cache"
+
+SCRIPTNAME=$(basename $0)
+
+# Set the backup directory.
+BACKUPDIR=/var/local/backups/mysql
+if [ ! -d "$BACKUPDIR" ]; then
+  logger "$SCRIPTNAME: Destination directory doesn't exist."
+  mkdir -p $BACKUPDIR
+fi
+
+# Set the group owner of the dumps
+owner_group=staff
+
+# Avoid taking all the CPU
+#renice +19 -p $$ > /dev/null
+
+# Get the password to connect to MySQL
+if [ -r "$CRED_FILE" ]; then
+  OPTS="--defaults-file=$CRED_FILE $OPTS"
+fi
+
+# Make sure that another instance of this script isn't running.
+pgrep $SCRIPTNAME
+RET=$?
+if [ "$RET" -eq 0 ]; then
+  logger "$SCRIPTNAME: Another instance of the process $SCRIPTNAME is running, exitting
+to avoid multiples instances"
+  exit 1
+fi
+
+# Some DB don't need to be backup
+SKIP_BACKUP_LIST="test|temp"
+
+# Get the database names to backup.
+DATABASES=`\ls -F /var/lib/mysql | grep '\/$' | sed 's/\///g' | grep -vwE $SKIP_BACKUP_LIST`
+
+# Dump each database and compress it.
+for DATABASE in $DATABASES
+do
+  IGNORETABLES=$(for TABLE in $(echo $CACHETABLES); do echo -n " --ignore-table=$DATABASE.$TABLE"; done; echo -n " ")
+  DATE=$(date "+%y%m%d%H%M")
+  DST_FILE="$BACKUPDIR/$DATABASE-$DATE.sql.gz"
+  LINK_TARGET="$BACKUPDIR/$DATABASE-LATEST.sql.gz"
+  mysqldump $OPTS $IGNORETABLES $DATABASE | gzip > $DST_FILE
+  chmod 440 $DST_FILE
+  chgrp $owner_group $DST_FILE
+  ln -sf $DST_FILE $LINK_TARGET
+done
+
+# Delete old backups
+KEEP_DAYS=60
+find $BACKUPDIR -maxdepth 1 -type f -mtime +$KEEP_DAYS -delete