Book Image

MongoDB Administrator???s Guide

By : Cyrus Dasadia
Book Image

MongoDB Administrator???s Guide

By: Cyrus Dasadia

Overview of this book

MongoDB is a high-performance and feature-rich NoSQL database that forms the backbone of the systems that power many different organizations. Packed with many features that have become essential for many different types of software professional and incredibly easy to use, this cookbook contains more than 100 recipes to address the everyday challenges of working with MongoDB. Starting with database configuration, you will understand the indexing aspects of MongoDB. The book also includes practical recipes on how you can optimize your database query performance, perform diagnostics, and query debugging. You will also learn how to implement the core administration tasks required for high-availability and scalability, achieved through replica sets and sharding, respectively. You will also implement server security concepts such as authentication, user management, role-based access models, and TLS configuration. You will also learn how to back up and recover your database efficiently and monitor server performance. By the end of this book, you will have all the information you need—along with tips, tricks, and best practices—to implement a high-performance MongoDB solution.
Table of Contents (17 chapters)
Title Page
Credits
About the Author
About the Reviewers
www.PacktPub.com
Customer Feedback
Preface

Creating and assigning custom roles


In this recipe, we will look at how to create a custom role and assign it to users. We will also have a quick look at how to add roles to and revoke roles from a user.

Getting ready

You will need a standard MongoDB installation. Additionally, we will continue from the previous recipe, where we had created a database user and assigned it a built-in role.

How to do it...

  1. Connect to the mongod instance using the mongo shell and authenticate as superuser:
use admin

db.auth('superadmin', 'supasecret')
  1. Switch to mydb and create a new role:
use mydb

db.createRole(
  {
    role: "InsertAndReadOnly",
    privileges: [
      {
        actions: [ "find", "insert" ],
        resource: { db: "mydb", collection: "mockdata" }
      }
    ],
    roles: []
  }
)
  1. Use the db.getRole() command to view the newly created role:
db.getRole('InsertAndReadOnly' , { showPrivileges: true })
  1. You should see an output similar to this:
{
  "role" : "InsertAndReadOnly",
  "db" : "mydb",
  "isBuiltin...