Failure in Docker Build (Ultralytics) on Jetson Nano AGX Developer Kit

Issue Overview

Users are experiencing issues during the Docker build process specifically with the Ultralytics image on the Jetson Nano AGX Developer Kit. The primary symptoms include errors related to package resolution, as indicated by the following error messages:

• "Could not resolve ‘ports.ubuntu.com’"
• "Could not resolve ‘repo.download.nvidia.com’"

These errors occur when attempting to run a Dockerfile that is designed to set up an environment for Ultralytics, particularly when fetching dependencies via apt-get. The issue arises during the setup phase, specifically when the Dockerfile attempts to update package lists and install required libraries.

The hardware in question is the Jetson Nano AGX Developer Kit, and it appears that the problem is isolated to this specific Dockerfile, as other Dockerfiles build successfully on the same device. The frequency of the issue is consistent whenever this particular Dockerfile is executed, significantly impacting user experience by preventing the successful installation of necessary packages for running Ultralytics applications.

Possible Causes

• Network Issues: The inability to resolve hostnames like ‘ports.ubuntu.com’ and ‘repo.download.nvidia.com’ suggests a potential network configuration problem or DNS resolution failure.

• Docker Configuration: Misconfigurations in the Docker daemon settings may lead to issues with network access for containers.

• JetPack Compatibility: The user may be using a JetPack version incompatible with the Ultralytics container, as noted in forum replies indicating that JetPack 5 is not available for Jetson Nano users.

• Environmental Factors: Issues with internet connectivity or firewall settings could prevent the container from accessing necessary repositories.

• User Errors: Incorrectly specified base images or dependencies in the Dockerfile could lead to these errors.

Troubleshooting Steps, Solutions & Fixes

1. Check Network Configuration:

   • Verify that the Jetson Nano AGX has internet access. You can test this by running:

     ping -c 4 google.com
     

   • If there are connectivity issues, check your router settings or consider resetting your network configuration.

2. Review Docker Daemon Configuration:

   • Ensure that your Docker daemon is configured correctly. You can check the daemon configuration file (usually located at /etc/docker/daemon.json) for any misconfigurations.
   • Restart the Docker service after making changes:

     sudo systemctl restart docker
     

3. Update DNS Settings:

   • If DNS resolution is failing, consider adding Google’s public DNS servers to your /etc/resolv.conf:

     nameserver 8.8.8.8
     nameserver 8.8.4.4
     

   • Restart your network service or reboot your device after making changes.

4. Use Compatible JetPack Version:

   • Confirm that you are using a compatible JetPack version for your hardware. For Jetson Nano users, ensure you are not trying to use images meant for Jetson Orin Nano.
   • Check compatibility documentation for Ultralytics and ensure you are using an appropriate base image.

5. Modify Dockerfile:

   • If network issues persist, try adding --fix-missing to your apt-get commands in the Dockerfile:

     RUN apt-get update --fix-missing && apt-get install -y libx11-dev
     

6. Test with Alternative Base Images:

   • If issues continue, consider testing with an alternative base image that is known to work with your setup.

7. Run Commands Manually:

   • As a diagnostic step, try building the image without using Docker by running commands directly on your Jetson device to identify if there are any specific package installation issues.

8. Check for Updates:

   • Make sure that both your system and Docker are up-to-date:

     sudo apt-get update
     sudo apt-get upgrade
     sudo apt-get install docker-ce docker-ce-cli containerd.io
     

9. Documentation and Community Resources:

   • Refer to Nvidia’s official documentation for Jetson devices and Ultralytics for any updates or specific instructions regarding installation and compatibility.

10. Best Practices:

    • Regularly check for updates on both software and hardware compatibility.
    • Keep a backup of working configurations and document any changes made during troubleshooting.

If multiple users reported success with a particular solution (e.g., verifying compatibility with JetPack versions), it should be highlighted as a recommended approach for resolving similar issues in future builds. Unresolved aspects may include specific environmental factors affecting certain setups; further investigation may be needed based on individual configurations and network environments.