Ensure Docker usage is possible while using eic-shell (it's not currently)

[buddhasystem]

In the tutorial, Docker and Singularity are mentioned on same footing, i.e. a reasonable person would assume that either would work with the image(s) provided. However, if Singularity is not present on the system, the installation will fail. Proposal: make the choice of Docker vs Singularity explicit at install time.

Reasoning -- making Singularity a hard requirement limits the scope of usage of eic-shell. Many users are heavily invested into Docker on their workstations and laptops and won't want to install yet another container system, with all sorts of related bloat.

[buddhasystem]

The simple fix in the install file can look like this:
if [ "$CPU" = "arm64" ] || [ "$CPU" = "x86_64" ]; then

[kkauder]

@buddhasystem , Maxim, could you try

curl -L https://github.com/eic/eic-shell/blob/force_docker/install.sh -d | bash

(and compare to

curl -L https://github.com/eic/eic-shell/blob/force_docker/install.sh | bash

which should use singularity).

If there's a problem, I can debug on a farm node, but maybe it just works out of the box and solves your problem.

[buddhasystem]

@buddhasystem , Maxim, could you try

curl -L https://github.com/eic/eic-shell/blob/force_docker/install.sh -d | bash

(and compare to

curl -L https://github.com/eic/eic-shell/blob/force_docker/install.sh | bash

which should use singularity).

If there's a problem, I can debug on a farm node, but maybe it just works out of the box and solves your problem.

OK, I'll take a look -- thanks!

[buddhasystem]

@kkauder Hi Kolja,

Can this be resolved? It's been a while since we started talking about it i.e. making Docker available on normal Linux machines. Thank you,
Maxim