MongoDB – How to Create Database Users

First and foremost, one would be required to enable authentication with MongoDB database. The details can be found on this page

MongoDB Database – Create User Command

Following steps can be used to create a database user:

• Switch to the desired database. This is same as creating a database.

use databaseName

• Create user using following command:

db.createUser({
    "user": "userName",
    "pwd": "somePassword",
    "roles": ["dbOwner"],
});

Above command would create user with with role such as dbOwner. The details on creating users can be found on this page covering the description on creating users – db.createUser() The user with role such as dbOwner can perform any administrative action on the database. The role combines the privileges granted by the readWrite, dbAdmin and userAdmin roles.

MongoDB – Built-in User Roles

Following are some of the roles which can be associated with the user:

• Database user roles: Every database includes following client roles:
  • read
  • readWrite
• Database administration roles: Every database includes following administration roles:
  • dbAdmin
  • dbOwner
  • userAdmin
• Cluster administration roles: The admin database includes following roles for managing database cluster rather than the single database.
  • clusterAdmin
  • clusterManager
  • clusterMonitor
  • hostManager
• Backup and restoration roles: The admin database includes following roles for backing up and restoring the data.
  • backup
  • restore
• All-Database roles: Following roles are provided by admin database which applies to all the database except local and config databases.
  • readAnyDatabase
  • readWriteAnyDatabase
  • userAdminAnyDatabase
  • dbAdminAnyDatabase
• Superuser roles: Provide full privileges on all resources.
  • root

The details on above roles can be found on this page, MongoDB Built-in User Roles.