The official Rocketchat docker-compose needs to be updated for newer version of MongoDB

[Taubin]

Description:

Using the rocketchat docker-compose file here: https://raw.githubusercontent.com/RocketChat/Rocket.Chat/develop/docker-compose.yml the instance installs Mongodb v4.0. When starting up rocketchat, it gives a warning stating mongodb 4.0 has been depreciated and needs to be at least 4.2. Updating the file to just 4.2 breaks due to changes in mongodb's file system. The docker-compose needs to be updated properly.

Steps to reproduce:

1. Install docker-compose version of rocket chat using the official instructions here: https://docs.rocket.chat/quick-start/installing-and-updating/docker-containers/docker-compose
2. You will receive an error stating mongodb is depreciated
3. You will also receive multiple messages on your installation telling you it's depreciated.

Expected behavior:

The version of mongodb to be updating and the documentation updated to reflect the changes/

Actual behavior:

Server Setup Information:

• Version of Rocket.Chat Server: 4.0.2
• Operating System: Ubuntu 20.04
• Deployment Method: Docker
• Number of Running Instances: 1
• DB Replicaset Oplog:
• NodeJS Version:
• MongoDB Version: 4.0

Client Setup Information

• Desktop App or Browser Version: N/A
• Operating System: N/A

Additional context

[debdutdeb]

Hi.

I have a PR currently open to update the whole compose file.

#23426
#23425

[WingsLikeEagles]

This probably isn't any help at all. I'm just sharing for the informational purposes.

I had RocketChat 3.15.0 running in a container with MongoDB 4.0.23 running in a replica set with a couple of containers.
To move to MongoDB 4.2.16, I did:

• mongodump on MongoDB 4.0.23 containers
• shutdown all the containers (RocketChat first)
• started new MongoDB 4.2.16 containers (with empty data volumes, joined them to a replica set)
• mongorestore to new containers
• start RocketChat container.

This seemed to successful and running for a couple of weeks now.

[sneakyx]

As far as I understood, the --smallfiles options have to be removed, right?