MongoDB Hot Backup for Docker

Usage

This project provides script to run Hot Backup for percona/percona-server-mongodb.

The mongo container needs to be setup with local mount:

version: "3"

services:
  mongo:
    image: percona/percona-server-mongodb:3.4
    # (case sensitive) engine: mmapv1, rocksdb, wiredTiger, inMemory
    command: --storageEngine=wiredTiger
    volumes:
      - /srv/backups/mongodb:/backup
    ports:
      - 27017:27017

# vim:ts=2:sw=2:et

To run the backup, specify container name or id on commandline:

./backup-mongodb.sh CONTAINER BACKUP_DIR [USER] [PASSWORD]

• CONTAINER can be id, name, label, or swarm service name
• BACKUP_DIR is path that is bind mounted into container: -v $EXTERNAL_BACKUP_DIR:$CONTAINER_BACKUP_DIR the value for local dir is detected automatically
• USER mongodb username, optional (will try to autheticate only when filled)
• PASSWORD mongodb password, optional

Hot Backup

Percona Server for MongoDB includes an integrated open-source hot backup system for the default WiredTiger and alternative MongoRocks storage engine. It creates a physical data backup on a running server without notable performance and operating degradation.

To take a hot backup of the database in your current dbpath, run the createBackup command as administrator on the admin database and specify the backup directory.

> use admin
switched to db admin
> db.runCommand({createBackup: 1, backupDir: "/my/backup/data/path"})
{ "ok" : 1 }

If the backup was successful, you should receive an { "ok" : 1 } object. If there was an error, you will receive a failing ok status with the error message, for example:

> db.runCommand({createBackup: 1, backupDir: ""})
{ "ok" : 0, "errmsg" : "Destination path must be absolute" }

https://www.percona.com/doc/percona-server-for-mongodb/LATEST/hot-backup.html