The flux-system namespace is hardcoded in the install_flux.sh script.

Feature Request

Why

When needing to add something to the flux-system namespace definition (labels, etc), they either have to be added after the namespace is created, the script has to be modified before run, or the namespace has to be redefined afterwards.

Proposed Solution

Allow the namespace that is currently hard-coded to be updated via either an override or by separating it to a yaml file that is passed in as an argument (and can therefore be replaced).