MongoDB is not actually being secured

[prydonius]

We're setting the root password and user password, but not setting a MONGODB_USER so the authentication configuration is being ignored and MongoDB allows unrestricted access.

One issue is that, according to the docs, if we create a user and database, the user only has access to this one database. In dashboard we intend to use multiple databases, so we will either need to run a job to setup users and databases after starting MongoDB or simply just connect as the root user.

In the meantime, I will change everything to authenticate correctly as the root user (because that's still better than the current unrestricted access), but we should look into configuring the MongoDB image to create users and databases for each service.