Feedback: Deploy a Local Cluster in Docker (Insecure)

Page: https://cockroachlabs.com/docs/v25.1/start-a-local-cluster-in-docker-mac.html

## What is the reason for your feedback?

[ ] Missing the information I need

[ ] Too complicated

[ ] Out of date

[ X] Something is broken

[ ] Other

## Additional details
I try to create a docker-compose.yaml, which deploy a single node with certs and create a database with a db owner username and pass.
The docker-compose.yaml content:
```
services:
cockroachdb:
image: cockroachdb/cockroach:latest
container_name: cockroachdb
command: start-single-node --certs-dir=/certs --advertise-addr=cockroachdb --http-addr=0.0.0.0
volumes:
- ./certs:/certs
- ./cockroach-data:/cockroach/cockroach-data
networks:
- cockroachdb_net
environment:
- COCKROACH_DATABASE="dbnametest"
- COCKROACH_USER="dbusertest"
- COCKROACH_PASSWORD="dbpasstest"
ports:
- "26257:26257"
- "8080:8080"

networks:
cockroachdb_net:
name: cockroachdb_net
```

This is described in the document in the Start a single node chapter: https://www.cockroachlabs.com/docs/stable/start-a-local-cluster-in-docker-mac#start-a-single-node-cluster

After that I get an error message before the container quits with error code 1:
```
cockroachdb | Connecting to server "cockroachdb:26257" as user "root".
cockroachdb | ERROR: password authentication failed for user root
cockroachdb | SQLSTATE: 28P01
```

I can set root username and password with the following settings from an old stackoverflow topic:
```
db_user: root
db_password: 123
```
In that case the COCKROACH_USER cannot login to the web UI. Exactly there is no user which can use the web UI.
Please clarify which method works and correct the documentation.
Thanks a lot!