No way for users to define LICENSE_AMPL

[yoctozepto]

In-test variants had hardcoded LICENSE_AMPL value but the end users are not supposed to hack on the scripts. This should be made easily settable.

[yoctozepto]

I assigned @rudi as the owner of this issue but please discuss and reassign appropriately to get this issue fixed.

[rudi]

The optimiser-controller creates the cluster with all environment variables specified by the user in the GUI, and the solver start script picks up the value of AMPL_LICENSE (see https://github.com/eu-nebulous/optimiser-solver/blob/3b39ea002fc2b580dbd0eb217c695b47b9fc7677/start-solver.sh#L11).

So it should all work already, but maybe the end user documentation does not tell the user to set AMPL_LICENSE in the GUI?

[yoctozepto]

Possibly, Rudi. @robert-sanfeliu should be most aware.