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NetAlertX/docs/DEBUG_TIPS.md
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DOCS: DB + config -> /data
Signed-off-by: jokob-sk <jokob.sk@gmail.com>
2025-11-29 16:19:13 +11:00

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# Debugging and troubleshooting
Please follow tips 1 - 4 to get a more detailed error.
## 1. More Logging
When debugging an issue always set the highest log level:
`LOG_LEVEL='trace'`
## 2. Surfacing errors when container restarts
Start the container via the **terminal** with a command similar to this one:
```bash
docker run \
--network=host \
--restart unless-stopped \
-v /local_data_dir:/data \
-v /etc/localtime:/etc/localtime:ro \
--tmpfs /tmp:uid=20211,gid=20211,mode=1700 \
-e PORT=20211 \
-e APP_CONF_OVERRIDE='{"GRAPHQL_PORT":"20214"}' \
ghcr.io/jokob-sk/netalertx:latest
```
Note: Your `/local_data_dir` should contain a `config` and `db` folder.
> [!NOTE]
> ⚠ The most important part is NOT to use the `-d` parameter so you see the error when the container crashes. Use this error in your issue description.
## 3. Check the _dev image and open issues
If possible, check if your issue got fixed in the `_dev` image before opening a new issue. The container is:
`ghcr.io/jokob-sk/netalertx-dev:latest`
> ⚠ Please backup your DB and config beforehand!
Please also search [open issues](https://github.com/jokob-sk/NetAlertX/issues).
## 4. Disable restart behavior
To prevent a Docker container from automatically restarting in a Docker Compose file, specify the restart policy as `no`:
```yaml
version: '3'
services:
your-service:
image: your-image:tag
restart: no
# Other service configurations...
```
## 5. TMP mount directories to rule host out permission issues
Try starting the container with all data to be in non-persistent volumes. If this works, the issue might be related to the permissions of your persistent data mount locations on your server. See teh [Permissions guide](./FILE_PERMISSIONS.md) for details.
## 6. Sharing application state
Sometimes specific log sections are needed to debug issues. The Devices and CurrentScan table data is sometimes needed to figure out what's wrong.
1. Please set `LOG_LEVEL` to `trace` (Disable it once you have the info as this produces big log files).
2. Wait for the issue to occur.
3. Search for `================ DEVICES table content ================` in your logs.
4. Search for `================ CurrentScan table content ================` in your logs.
5. Open a new issue and post (redacted) output into the issue description (or send to the netalertx@gmail.com email if sensitive data present).
6. Please set `LOG_LEVEL` to `debug` or lower.
## Common issues
See [Common issues](./COMMON_ISSUES.md) for additional troubleshooting tips.