MongoDB S3 Backup

gistfile1.txt

#!/bin/bash
#
# Argument = -u user -p password -k key -s secret -b bucket
#
# To Do - Add logging of output.
# To Do - Abstract bucket region to options

set -e

export PATH="$PATH:/usr/local/bin"

usage()
{
cat << EOF
usage: $0 options

This script dumps the current mongo database, tars it, then sends it to an Amazon S3 bucket.

OPTIONS:
   -h      Show this message
   -u      Mongodb user
   -p      Mongodb password
   -k      AWS Access Key
   -s      AWS Secret Key
   -r      Amazon S3 region
   -b      Amazon S3 bucket name
EOF
}

MONGODB_USER=XXX
MONGODB_PASSWORD=XXX
MONGODB_ADMIN_USER=XXX
MONGODB_ADMIN_PASSWORD=XXX
AWS_ACCESS_KEY=XXX
AWS_SECRET_KEY=XXX
S3_REGION=us-east-1
S3_BUCKET=XXX
DIR=/tmp
DATE=$(date -u "+%a")
# If first day of the month, then store the month snapshot
if [ 01 = $(date -u "+%d") ]; then
  DATE=$(date -u "+%b");
fi
FILE_NAME="backup-$DATE"
ARCHIVE_NAME="$FILE_NAME.tar.gz"

if [[ -z $MONGODB_USER ]] || [[ -z $MONGODB_PASSWORD ]] || [[ -z $AWS_ACCESS_KEY ]] || [[ -z $AWS_SECRET_KEY ]] || [[ -z $S3_REGION ]] || [[ -z $S3_BUCKET ]]
then
  usage
  exit 1
fi

# Lock the database
# Note there is a bug in mongo 2.2.0 where you must touch all the databases before you run mongodump
mongo -username "$MONGODB_USER" -password "$MONGODB_PASSWORD" --port 10096 solidweld --eval "db.fsyncLock();"

# Dump the database
mongodump -username "$MONGODB_USER" -password "$MONGODB_PASSWORD" --port 10096 --db solidweld --out $DIR/backup/$FILE_NAME

# Unlock the database
# mongo -username "$MONGODB_ADMIN_USER" -password "$MONGODB_ADMIN_PASSWORD" --port 10096 admin --eval "printjson(db.fsyncUnlock());"
mongo -username "$MONGODB_USER" -password "$MONGODB_PASSWORD" --port 10096 solidweld --eval "db.fsyncUnlock();"

# Tar Gzip the file
tar -C $DIR/backup/ -zcf $DIR/backup/$ARCHIVE_NAME $FILE_NAME/

# Remove the backup directory
rm -r $DIR/backup/$FILE_NAME

cd $DIR/backup/

echo $ARCHIVE_NAME
# Send the file to the backup drive or S3
/usr/bin/s3cmd put $ARCHIVE_NAME s3://solidweld/mongobackups/$ARCHIVE_NAME

# Clear out /tmp/backup
rm -rf $DIR/backup/*