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Logging

Planka supports exposing its internal log directory to the host machine via a shared Docker volume.

This feature is disabled by default.

Enable Host Log Access​

To enable logging to the host, add the following volume entry under services.planka.volumes in your docker-compose.yml:

volumes:
  - ./logs/:/app/logs/
  • ./logs/ refers to the host machine.
  • /app/logs/ refers to the container.

This will create a logs directory next to your docker-compose.yml and map it to Planka's internal logging folder.

Tip: If logs aren't appearing, check file and folder permissions. You may need to chown or chmod the host directory appropriately.

Log Rotation​

Over time, logs can consume disk space. Use logrotate to automatically manage log size and retention.

Configure logrotate for Planka​

Create a file at /etc/logrotate.d/planka with the following content:

/path/to/planka/logs/planka.log {
  daily
  missingok
  rotate 14
  compress
  delaycompress
  notifempty
  create 640 root adm
  sharedscripts
}

Be sure to replace /path/to/planka/logs/planka.log with your actual log file path on the host system.

To apply changes:

sudo systemctl restart logrotate

This setup will:

  • Rotate logs daily
  • Keep the last 14 logs
  • Compress old logs to save space
  • Only rotate if the log is not empty

Now your logs will be persisted on the host and managed efficiently.