mongodb-s3-backup

#!/bin/bash
# Written by: Victor Koronen <[email protected]>
# Based on: https://github.com/RGBboy/mongodb-s3-backup
# Dependencies: s3cmd (http://s3tools.org)

set -e

if [[ $# < 1 ]] ; then
    echo "Usage: $0 S3_URL"
    exit 1
fi
S3_URL=$1

WORKING_DIR=${TMPDIR:-/var/tmp}
TIMESTAMP=$(date -u "+%F-%H%M%S")
ARCHIVE_DIRNAME="mongodb-backup-$TIMESTAMP"
ARCHIVE_PATH="$WORKING_DIR/$ARCHIVE_DIRNAME.tar.gz"
DUMP_PATH="$WORKING_DIR/$ARCHIVE_DIRNAME"

# 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 admin --eval "var databaseNames = db.getMongo().getDBNames(); for (var i in databaseNames) { printjson(db.getSiblingDB(databaseNames[i]).getCollectionNames()) }; printjson(db.fsyncLock());"

# Dump the database
mongodump --out "$DUMP_PATH"

# Unlock the database
mongo admin --eval "printjson(db.fsyncUnlock());"

# Tar Gzip the file
tar -C "$WORKING_DIR" -zcvf "$ARCHIVE_PATH" "$DUMP_PATH"

# Remove the backup directory
rm -rf "$DUMP_PATH"

# Send the file to the backup drive or S3
s3cmd put "$ARCHIVE_PATH" "$S3_URL"

# Remove the archive
rm -f "$ARCHIVE_PATH"