get_s3_object.sh

#!/bin/bash
S3_BUCKET=$1
S3_OBJECT=$2
S3CFG=S3-CONFIG-FILE
S3CMD="s3cmd -c $S3CFG"

TIMESTAMP=$((`date +%s` + 600))
can_string="GET\n\n\n${TIMESTAMP}\n/${S3_BUCKET}/${S3_OBJECT}"

# generate the signature
SIGNATURE=$($S3CMD sign "$(echo -e "$can_string")" | sed -n 's/^Signature: //p')
# extract access key from .s3cfg
S3_ACCESS_KEY=$(sed -n 's/^access_key = //p' $S3CFG)

echo "https://${S3_BUCKET}.s3.amazonaws.com/${S3_OBJECT}?AWSAccessKeyId=${S3_ACCESS_KEY}&Expires=${TIMESTAMP}&Signature=${SIGNATURE}"

refresh_redis_data.sh

#!/bin/sh
REDIS_DUMP_RDB='/usr/local/var/db/redis/dump.rdb'
REDIS_PROTOCOL_FILE='redis-cache-data.raw.gz'
S3_BACKUP_BUCKET='s3://S3-BUCKET-NAME/'

# dump redis data to .RDB file
basetimestamp=`redis-cli lastsave`
redis-cli bgsave
while [ 1 ]
do
  curtimestamp=`redis-cli lastsave`
  if [ $basetimestamp != $curtimestamp ]
  then
    break
  fi
  sleep 1
done

# make redis loader command
echo 'Convert cache data to redis protocol commands...'
rdb --command protocol --key KEY-PATTERN $REDIS_DUMP_RDB gzip --stdout > $REDIS_PROTOCOL_FILE

# upload
echo 'Upload to S3'
s3cmd -c S3-CONFIG-FILE put $REDIS_PROTOCOL_FILE $S3_BACKUP_BUCKET

# remove file
rm $REDIS_PROTOCOL_FILE