Backup/restore with mongodump instead of rsync

[fititnt]

When I have free time, test an approach that uses mongodump.

Maybe some dockerized version, like https://github.com/istepanov/docker-mongodump

[fititnt]

Humm... rocketchat also have a upload folder. Maybe is easier to just stop and tar all the things. maybe even put the script of backup & restore on the same folder, to make it easier for non devops people restore entire thing with much small efforts

[fititnt]

This https://github.com/minio/cookbook/blob/master/docs/store-mongodb-backups-in-minio.md could be useful on future. Discovered because of this EticaAI/chatops-wg-data#5

[fititnt]

Or this with minio instead of S3 https://github.com/stefanprodan/mgob