Error authentication to MongoDB - Exception authenticating MongoCredential

Question

Just working locally on a Windows machine, with a Java Spring Boot 3.1.0 app and a latest mongo db version, and getting failure when connecting the app with database.

The db is deployed locally with the next docker command:

docker run -d -p 27017:27017 --name mongo-db -e MONGO_INITDB_ROOT_USERNAME=adrian -e MONGO_INITDB_ROOT_PASSWORD=password -e MONGO_INITDB_DATABASE=documents mongo:latest

And the app has next connection properties to the database:

spring.data.mongodb.host=localhost
spring.data.mongodb.port=27017
spring.data.mongodb.database=documents
spring.data.mongodb.username=adrian
spring.data.mongodb.password=password
spring.data.mongodb.authentication-database=admin

Or using uri:

spring.data.mongodb.uri=mongodb://adrian:password@localhost:27017/documents?authSource=admin

When any operation is performed through the database, this next error is printed:

org.springframework.data.mongodb.UncategorizedMongoDbException: Exception authenticating MongoCredential{mechanism=SCRAM-SHA-1, userName='adrian', source='documents', password=<hidden>, mechanismProperties=<hidden>}

Also tried to create database manually after running the container, and then initializing the app, but the problem persists:

docker exec -it dd1b012c0e1a /bin/bash
use admin
db.auth('adrian', 'password')
use documents

Anyone knows, which is the source of the problem?

Answer 1

What could be happening here is that you could be facing a configuration mix up.

1. Either use all the properties separately and let Spring set things up for you.

spring.data.mongodb.host=localhost
spring.data.mongodb.port=27017
spring.data.mongodb.database=documents
spring.data.mongodb.username=root
spring.data.mongodb.password=password
spring.data.mongodb.authentication-database=admin

or

2. Just use the uri.

spring.data.mongodb.uri=mongodb://root:password@localhost:27017/documents?authSource=admin

Also for good measure, you might want to also intialize your DB when you run the Docker instance.

-e MONGO_INITDB_DATABASE=documents