MongoDB with Docker Authentication - mongodb

Question

I have set up a docker with MongoDB Image. By default it has no password set up. I made a user and assigned it roles, which works perfectly well. But the issue is that the connection is still possible without authentication.
Connect with Authentication > Right Username, Right Password -> CONNECTED
Connect with Authentication > Right Username, Wrong Password -> CONNECTION FAILED
Connection without Authentication > CONNECTED
I want the 3rd point to stop working.

Answer 1

Steps:-
1) Run a docker instance without authentication
$ docker run --name container-name -d -p 27017:27017 -v ~/mongodb:/data/db mongo
2) Create a main administrator user with admin roles
$ mongo --port 27017
$ use admin;
$ db.createUser({user: "adminUserName",pwd: "adminPassword",roles: [{ role: "userAdminAnyDatabase", db: "admin" }})
This will create a user in the admin database with roles "userAdminAnyDatabase". This is like a superuser.
3) Create User for a particular database
$ use
$ db.createUser({user: "dev-read-username",pwd: "dev-read-password",roles:["read"]})
-- User with "read" role
$ db.createUser({user: "dev-write-username",pwd: "dev-write-password",roles:["readWrite"]})
-- User with "readWrite" role
For list of roles available or how to create custom roles, please check https://docs.mongodb.com/manual/reference/built-in-roles/
4) Remove the docker container
$ docker ps -a
$ docker stop container_id
$ docker rm container_id
5) Run the docker instance with authentication enabled
$ docker run --name container-name -d -p 27017:27017 -v ~/mongodb:/data/db mongo --auth
I assume you might not have started the docker container with --auth enabled. Once you start with --auth enabled, then you will not be able to connect without credentials.

Answer 2

Run with auth option to add authorizations docker run --name some-mongo -d mongo --auth
You should create an admin user. You can check if admin user exists using db.getSiblingDB('admin').system.users.find() or create one like : db.createUser({ user: 'jsmith', pwd: 'some-initial-password', roles: [{ role: "userAdminAnyDatabase", db: "admin" } ] });
Source : https://hub.docker.com/r/library/mongo/