til/mongodb/dump-a-remote-database.md

Dump A Remote Database

Here is a single-line script for dumping a remote mongo database. This will dump it to your local filesystem in a binary format (.bson) that you can then restore to another mongo instance.

Create a file like this called mongdump-cmd and replace the various placeholder values (e.g. <HOST>) with valid values for your remote mongo instance.

mongodump --host '<HOST>:<PORT>' \
          --ssl \
          --username '<USER>' \
          --password '<PASSWORD>' \
          --authenticationDatabase 'admin' \
          --out ./mongo-backups/<DATE>-dump

Create the backup directory:

$ mkdir mongo-backups

Then execute the bash script:

$ bash mongodump-cmd

This will dump everything on the remote instance into the mongo-backups/2020-06-20-dump/ directory. You can also include the --db flag to dump a specific database.

This can later be used with mongoresetore to restore the data to the mongo instance you specify.