mongodb importing issue

Question

I'm trying to import JSON files into MongoDB using `mongoimport`, but I keep getting an authentication error even though I've configured MongoDB to run without auth.

**Error:**

```
Failed: (Unauthorized) Command insert requires authentication
2026-03-19T21:11:52.036+0200 0 document(s) imported successfully. 0 document(s) failed to import.

```

**Command:**

```bash
mongoimport --host hopper.proxy.rlwy.net:26641 --db edgar --collection app_settings --file app_settings.json

```

**MongoDB Configuration:**

* **Image:** mongo:8.0
* **Start Command:**`docker-entrypoint.sh mongod --ipv6 --bind_ip ::,0.0.0.0 --setParameter diagnosticDataCollectionEnabled=false --noauth`
* **Auth Variables:** Removed (MONGO\_INITDB\_ROOT\_USERNAME and MONGO\_INITDB\_ROOT\_PASSWORD set to null)
* **Volume:** Mounted at /data/db (5000 MB)

**What I've tried:**

1. Added `--noauth` flag to startCommand
2. Removed MONGO\_INITDB\_ROOT\_USERNAME and MONGO\_INITDB\_ROOT\_PASSWORD variables
3. Redeployed MongoDB multiple times
4. Removed and recreated the volume

**What's happening:** Despite these changes, MongoDB still requires authentication. The deployment appears to complete successfully, but the service still enforces auth.

**Question:** Why is MongoDB still requiring authentication even with `--noauth` enabled? Is there something else I need to configure to disable auth on Railway?