Allow creating new environments using environment files and conda-env

[benbovy]

Hello!

Thanks for providing the miniconda role!

I want to create new environments from external environment (yaml) files, using conda-env, so I added the feature.

I'm new to Ansible, so maybe this can be improved?

[robinandeer]

Hi!

A lot is new to me about Ansible too but I'll do my best

Haven't used conda-env tho so that's more new things :smiley: - thanks!

[robinandeer]

One thing I would ask after reviewing the code is what you feel about the defaults?

Right now; two envs will be created, right? Perhaps we can add a more explicit flag for the conda-env feature which is turned off by default? What do you think?

On the other hand conda-env looks really nice so why not install it by default but not supply a default environment.yaml file?

[nehalecky]

Hey all, just wanted to point out this other ansible miniconda role, github.com/uchida/ansible-miniconda-role. I haven't tried it, however, supposedly contains a var miniconda_env that supports just this.