Singularity Support

[qiyang-ustc]

Hi! Do you have any plan to make container as one of a standard routine to utilize ALPS?
I tried build ALPS singularity image several years ago and have some experience. I am very glad to contribute to it.

I know it is my fault that can not build it from source properly... Even though I have some experience to build it in a container, I still found it very difficult and in the last fail to bind Python with ALPS tools on macOS. In the end, I still believe there is a possibility to widely extend the usage of container in the program of ALPS. Maybe it could make it great again...

[egull]

Oh that's cool! Would you be willing to contribute these build files and show us how to test them? We can also help to sort out problems with building things...

[qiyang-ustc]

Sure!

For simplicity, fetch image definition file from https://github.com/qiyang-ustc/ALPS_SIF and build. Or directly pull it from SingularityHub or DockerHub.
main.def for singularity, image: [Singularity](https://cloud.sylabs.io/library/qiyang/alps/alps)
Dockerfile for Docker, image: [Docker](https://hub.docker.com/r/qiyangcompphy/alps)

This is an example to show how to utilize the singularity image: see Run with singularity in README.md of SpinlesstV-LCT-INT