redis rdb backup script

redis_rdb_backup.sh

#!/bin/bash

## simple redis rdb backup script
## usage
## rdb-backup.sh rdb.path backup.dir bgsave.wait.seconds

SRCPATH=${1:-"/var/lib/redis/"}
DESTPATH=${2:-"/opt/redisbackups"}
DESTFILE=${3:-"`date '+%Y-%m-%d-%H%M%S'`-redis.rdb.tar.gz"}
WAIT=${4:-10} ## default wait for 10 seconds
DEST="${DESTPATH}/${DESTFILE}"
BUCKETDEST="/mnt/disks/sf3-production-backup/redisbackups"

test -f "$SRCPATH"/dump.rdb || {
    echo No rdb file found ; exit 1
}
test -d "$DESTPATH" || {
    echo Creating backup directory $backup_to && mkdir -p "$DESTPATH"
}

## launch bgsave
echo bgsave | redis-cli -h 10.122.0.5
echo "waiting for $WAIT seconds..."
sleep $WAIT
try=5
while [ $try -gt 0 ] ; do
    saved=$(echo 'info Persistence' | redis-cli -h 10.122.0.5 | awk '/rdb_bgsave_in_progress:0/{print "saved"}')
    ok=$(echo 'info Persistence' | redis-cli -h 10.122.0.5 | awk '/rdb_last_bgsave_status:ok/{print "ok"}')
    if [[ "$saved" = "saved" ]] && [[ "$ok" = "ok" ]] ; then
       tar cf - -C "$SRCPATH" dump.rdb  | pigz -9 > "$DEST"
       mv "$DEST" "$BUCKETDEST"
        if [ $? = 0 ] ; then
            echo "redis rdb  backed up to $DEST and moved to $BUCKETDEST."
            exit 0
        else
            echo ">> Failed to backup!"
        fi
    fi
    try=$((try - 1))
    echo "redis maybe busy, waiting and retry in 5s..."
    sleep 5
done
exit 1