1# How to create a custom Ubuntu image 2 3In the context of adding more utilities to the Ubuntu cloud image being used 4for integration testing, this quick guide details how to achieve the proper 5modification of an official Ubuntu cloud image. 6 7## Image generation script 8 9This [script](../scripts/build-custom-image.sh) can be used to generate a custom image (needs to be modified per architecture/distribution image) 10 11## Switch CI to use the new image 12 13### Upload to Azure storage 14 15A command like the following can be used to upload the image: 16 17`az storage blob upload --account-name cloudhypervisorstorages --container-name '$web' --name jammy-server-cloudimg-amd64-custom-20241017-0.qcow2 --file jammy-server-cloudimg-amd64-custom-20241017-0.qcow2 --sas-token <redacted>` 18 19### Update integration tests 20 21Last step is about updating the integration tests to work with this new image. 22The key point is to identify where the Linux filesystem partition is located, 23as we might need to update the direct kernel boot command line, replacing 24`/dev/vda1` with the appropriate partition number. 25 26Update all references to the previous image name to the new one. 27 28## NVIDIA image for VFIO bare-metal CI 29 30Uncomment "VFIO_CUSTOM_IMAGE" in the script listed above to generate the custom image used for the VFIO worker.