There are two command you need to use to backup MongoDB databases:
Backup lifecycle:
- Create a copy of database (export) as a backup
- Get it from the server
- Put archive back to the server
- Apply (import) target backup
Export database
Export db notes to folder /tmp/notes.
mongodump -d notes -o /tmp/notes
Import database
Add key drop if there can be key conflicts
mongorestore /tmp/notes --db notes [--drop]
Download backup from remote server
Create archive with folder /tmp/notes
tar -cvjf notes.tar.bz2 /tmp/notes
Then copy this archive to your computer via scp utility.
scp root@domain.com:/root/notes.tar.bz2 ./
Upload backup to server of docker container
Upload it to server via scp:
scp ./notes.tar.bz2 root@domain.com:/tmp
Or put it into your database docker container localserver_db_1
docker cp ./notes.tar.bz2 localserver_db_1:/tmp
Unpack the archive on your server (container)
mkdir /tmp/notes
tar -xvjf /tmp/notes.tar.bz2 -C /tmp/
If you see an error
$ tar -xvjf notes.tar.bz2
tar (child): bzip2: Cannot exec: No such file or directory
tar (child): Error is not recoverable: exiting now
tar: Child returned status 2
tar: Error is not recoverable: exiting now
Then install bzip2 package
apt install bzip2