How does Wave / Fusion2 work with Singularity?

[gwright99]

NGC is interested in leveraging Fusion2 via Wave. Their compute is an on-prem HPC which must run all containers as Singularity images. They have asked how/if Docker images pulled from via Wave are converted to Singularity images.

Questions:

1. Do we have existing content explaining this flow? If not:
   1. Can I please get of explanation of what is / is not possible?
   2. If possible, can someone from the Wave/Nextflow team please outline what this sequence flow looks like?

[pditommaso]

Let's start the "Discussion" section in Wave! 😄

[pditommaso]

Currently, Nextflow can convert Wave container to Singularity format as any other Docker image. However, we are looking into having Wave build natively the image in Singularity format, See here.

You may want to ask if they find it useful.