Code Summary: Connecting to MongoDB Servers

Review the following code, which demonstrates how to connect to the MongoDB Shell, or mongosh, on a new mongod instance and use mongosh database methods.

Connect to mongosh

Start the mongod service:

sudo systemctl start mongod

Connect to mongosh on the default port:

mongosh

Create the First admin Database User

Switch to the admin database:

use admin

Use the createUser() method with the username set to "dbaTestAdmin", password set to "dbaTestPassword", and role set to 'root':

db.createUser(
  {
    user: "dbaTestAdmin",
    pwd: "dbaTestPassword",
    roles: [ { role: 'root', db: 'admin' } ]
  }
)

To see the database users, run the following command:

show users

Use db.adminCommand()

To create the first admin database user, use the db.adminCommand() method:

 db.adminCommand(
  {
    createUser: "dbaTestAdmin",
    pwd: "dbaTestPassword",
    roles: [
      { role: "userAdminAnyDatabase", db: "admin" }
    ]
  }
)

To stop the mongod service by using mongosh, use db.adminCommand(<command>):

db.adminCommand( { shutdown: 1 } )

Use db.help()

To retrieve a list of common mongosh database methods, run the following command:

db.help()