Role-Based Access Control in MongoDB

Introduction

Role-Based Access Control (RBAC) is a method of regulating access to computer or network resources based on the roles of individual users within an organization. In MongoDB, RBAC is implemented to enhance security by providing a structured way to control access to data.

Key Concepts

Definitions

Role: A collection of privileges that can be assigned to users.
User: An account that can connect to the database and perform actions based on assigned roles.
Privilege: A specific action that can be performed, such as reading or writing data.

Note: MongoDB supports built-in roles, but you can also create custom roles to suit your application's needs.

Implementation Steps

Enable Authentication:
```
mongod --auth --bind_ip localhost
```

Create a User:


use admin
db.createUser({
    user: "admin",
    pwd: "password",
    roles: [{ role: "userAdminAnyDatabase", db: "admin" }]
})

Assign Roles:


db.createUser({
    user: "appUser",
    pwd: "appPassword",
    roles: [{ role: "readWrite", db: "myDatabase" }]
})

Verify User Roles:
```
db.getUser("appUser")
                
```

Best Practices

Use the principle of least privilege when assigning roles.
Regularly audit user roles and privileges.
Implement strong password policies.
Utilize custom roles for specific application needs.

FAQ

What is RBAC?

RBAC is a method for restricting system access to authorized users based on their roles.

How do I create a custom role in MongoDB?

Use the db.createRole() method to define a new role with specific privileges.

Can I assign multiple roles to a user?

Yes, you can assign multiple roles to a user by including them in the roles array when creating or updating a user.