first commit

README.md

@@ -1,2 +1,17 @@
 # mysql_backup
+
+MySQL backup shell script
 Feature rich MySQL / MariaDB backup script.
+
+# Setup password
+
+Set mysql `user` and `password` to user that execute script using `.my.cnf` in user homedir.
+
+# .my.cnf example
+
+```
+    [client]
+    user = mysqldump
+    password = secret_passwd_here_HMnab4sBMmMwtDgvF=qZuuU#gsED9u6J
+    host = localhost
+```

mysql_backup.sh

@@ -0,0 +1,172 @@
+#!/bin/sh
+# set mysql user and password to user who dump mysql by .my.cnf in user homedir
+#
+# nano /home/mysqldump/.my.cnf
+# [client]
+# user = mysqldump
+# password = secret_passwd_here_HMnab4sBMmMwtDgvF=qZuuU#gsED9u6J
+# host = localhost
+#
+
+export PATH="/sbin:/bin:/usr/sbin:/usr/bin:/usr/local/sbin:/usr/local/bin" ;
+
+script="$(basename "$(test -L "${0}" && readlink "${0}" || echo "${0}")")" ;
+mypidfile="/var/run/`basename ${0}`.pid" ;
+
+usage()
+{
+        echo "Usage: mysql_backup.sh -d /var/backup -n daily [-c 10 -s -a -e test@domain.org]"
+	echo
+       	echo "-d | --dir :: backup directory"
+	echo "-n | --name :: backup name"
+	echo "-c | --copies :: number of copies to store (default 10)"
+	echo "-e | --email :: notification email"
+       	echo "-l | --lock-all-tables"
+       	echo "-s | --single-transaction"
+	echo "-a | --archive :: gzip dump"
+	echo "-q | --quiet"
+       	echo "-h help"
+}
+
+error()
+{
+
+    echo -e "\033[0;31m${1}\e[00m" ;
+    if ! [ "${email}" = "" ] ; then
+        echo "ERROR: `hostname`, ${script}: ${1}" | mail -s "'ERROR: `hostname`, ${script}: ${1}'" ${email} ;
+    fi
+}
+
+while [ "$1" != "" ]; do
+    case $1 in
+        -d | --dir )            shift
+                                dir=$1
+                                ;;
+	-n | --name )		shift
+                               	name=$1
+                               	;;
+       	-c | --copies )         shift
+                                copies=$1
+                                ;;
+	-e | --email )          shift
+                                email=$1
+                                ;;
+        -l | --lock-all-tables ) lock=1
+                                ;;
+	-s | --single-transaction ) singletrans=1
+                                ;;
+	-a | --archive )        archive=1
+                                ;;
+	-q | --quiet )		quiet=1
+				;;
+        -h | --help )           usage
+                                exit
+                                ;;
+        * )                     usage
+                                exit 1
+    esac
+    shift
+done
+
+if [ "${dir}" = "" ] ;
+then
+	usage ;
+	error  "Backup dir is not set!"
+	exit 1 ;
+fi
+
+if [ "${name}" = "" ] ;
+then
+    	usage ;
+        error  "Name of backup is not set!"
+        exit 1 ;
+fi
+
+if [ "${copies}" = "" ] || [ ! -n "${copies}" ] || [ "${copies}" -le "0" ] ;
+then
+	copies=10
+fi
+
+
+if ! [ -d ${dir} ] ; then
+
+	error "Directory '${dir}' does not exists!" ;
+	exit 1 ;
+fi
+
+if [ -s ${mypidfile} ] ; then
+       	error "ERROR: `hostname` script ${script} already running!" ;
+	exit 1 ;
+fi
+
+trap "rm -f ${mypidfile} ;" EXIT INT KILL TERM SIGKILL SIGTERM;
+
+echo $$ > ${mypidfile} ;
+
+mysqlparams="   --all-databases \
+                --add-drop-database \
+                --add-drop-table \
+                --add-drop-trigger \
+                --add-locks \
+		--compact \
+		--disable-keys \
+                --apply-slave-statements \
+                --allow-keywords \
+                --complete-insert \
+                --create-options \
+                --default-character-set=UTF8 \
+                --dump-date \
+                --events \
+                --extended-insert \
+                --flush-privileges \
+                --master-data \
+                --include-master-host-port \
+                --order-by-primary \
+                --quick \
+                --quote-names \
+                --routines \
+                --triggers \
+                --force \
+		--max-allowed-packet=512M
+                --log-error=/var/log/mysqldump.log" ;
+
+if [ "${singletrans}" ] ; then
+        mysqlparams="${mysqlparams} --single-transaction" ;
+fi
+
+if [ "${lock}" ] ; then
+        mysqlparams="${mysqlparams} --lock-all-tables" ;
+fi
+
+if [ `ls ${dir} | grep mysqldump.daily | wc -l` -ge "${copies}" ] ; then
+	i=1;
+	for filename in `ls ${dir} | grep mysqldump.daily. | sort -r` ; do
+		if [ "${i}" -ge "${copies}" ] ; then
+			rm "${dir}/${filename}" ;
+		fi
+		i=$(expr $i + 1)
+	done
+fi
+
+if [ ! "${quiet}" ] ; then
+	echo "Starting database dump (`date +\"%Y-%m-%d %H:%M:%S\"`)" ;
+fi
+
+date=`date +"%y%m%d.%H%M%S"` ;
+
+dump_file_name="${dir}/mysqldump.${name}.${date}.sql" ;
+
+mysqldump ${mysqlparams} > ${dump_file_name} ;
+
+if [ "${archive}" ] ; then
+
+	if [ ! "${quiet}" ] ; then
+        	echo "Archiving dump (`date +\"%Y-%m-%d %H:%M:%S\"`)..." ;
+	fi
+
+	gzip ${dump_file_name} ;
+fi
+
+rm -f ${mypidfile} ;
+
+exit 0 ;