01_install_requirements.sh / Always running registry for disconnected install

[mazzystr]

Describe the bug
01_install_requirements.sh always runs tasks such as ssl cert creation and starting Docker registry.

These tasks should be conditional based on a boolean (boolean in shell scripts, LOL!) set in config.sh.

To Reproduce
./01_install_requirements.sh

Expected/observed behavior
I want to run a normal install and pull images from quay.io. All the cert create and Docker registry tasks are extraneous.

Additional context

[hardys]

Yeah we could make them optional, but we'd need to be careful to either leave them enabled by default, or re-enable automatically when someone specifies *_LOCAL_IMAGE which relies on the local registry.

The reason it's enabled by default is that the majority of developers using these scripts are regularly testing from-source container builds, so it was easier to just enable it always.

[hardys]

Oh I see now this is referring to #856 which is not yet merged, I'll close this and we can discuss on the PR, if it merges without the requested fix we can reopen this.