MongoDB User

mongosh -u <username> -p --authenticationDatabase <database>

root@42c2a9506877:/# mongosh -u <admin-username> -p --authenticationDatabase admin
Enter password: ************************
Current Mongosh Log ID: 66093baf14becfa04bdb83af
Connecting to:          mongodb://<credentials>@127.0.0.1:27017/?directConnection=true&serverSelectionTimeoutMS=2000&

...

test>

root@42c2a9506877:/# mongosh
Current Mongosh Log ID: 66093e1e11b8bf37abdb83af
Connecting to:          mongodb://127.0.0.1:27017/?directConnection=true&serverSelectionTimeoutMS=2000&appName=mongosh+2.2.0
Using MongoDB:          7.0.7
Using Mongosh:          2.2.0

For mongosh info see: https://docs.mongodb.com/mongodb-shell/

test> use admin
switched to db admin
admin> db.auth("<username>", passwordPrompt())
Enter password
************************{ ok: 1 }
admin>

admin> db.system.users.find()
[
  {
    _id: '<databasename>.<username>',
    userId: UUID('76334351-ae44-4ef8-917b-c6ae57f56518'),
    user: '<username>',
    db: '<databasename>',
    credentials: {
      'SCRAM-SHA-1': {
        iterationCount: 10000,
        salt: 'ANYHASHpkIZJx7EYVMdHhRzZ2Ej6lXG==',
        storedKey: 'ANYOTHERHASHpkIZJx7EYVMdHhRzZ2Ej6lXG=',
        serverKey: 'ANYFURTHERHASHpkIZJx7EYVMdHhRzZ2Ej6lXG='
      },
      'SCRAM-SHA-256': {
        iterationCount: 15000,
        salt: 'ANYHASHpkIZJx7EYVMdHhRzZ2Ej6lXG==',
        storedKey: 'ANYOTHERHASHpkIZJx7EYVMdHhRzZ2Ej6lXG=',
        serverKey: 'ANYFURTHERHASHpkIZJx7EYVMdHhRzZ2Ej6lXG='
      }
    },
    roles: [ { role: 'readWrite', db: '<databasename>' } ]
  },
  ...
]
admin>

admin> use <database>
switched to db <database>
<database>> db.getUser("reportsUser")
null
<database>> db.getUser("<username>")
{
  _id: '<database>.<username>',
  userId: UUID('76324351-ae44-4ef8-917b-c6ae57f57518'),
  user: '<username>',
  db: '<database>',
  roles: [ { role: 'readWrite', db: '<database>' } ],
  mechanisms: [ 'SCRAM-SHA-1', 'SCRAM-SHA-256' ]
}

db.createUser(
  {
    user: "<username>",
    pwd:  passwordPrompt(),
    roles: [ { role: "readWrite", db: "<database-1>" },  (1)
             { role: "read", db: "<database-2>" } ]      (2)
  }
)