Set CHE_DEVFILE_REGISTRY_URL to allow airgap operation

[tomgeorge]

This PR adds the CHE_DEVFILE_HTTPS_ENDPOINT variable when configuring the registries in airgap mode. It uses the public-facing route of the devfile registry, and places it in the devfile-registry config map, and redeploys a new version of the registry based on changes to the route.

Enables eclipse-che/che#14880

[skabashnyuk]

Can this variable contain http link?
CC @sleshchenko

[tomgeorge]

yes, it just needs to be whatever the external URL of the devfile registry you are going to use for airgap mode

[skabashnyuk]

this https part in name confuses a bit. What if we change it to CHE_DEVFILE_REGISTRY_URL?

[tomgeorge]

env var name has been changed to CHE_DEVFILE_REGISTRY_URL

[davidfestal]

@skabashnyuk @tomgeorge isn't this env variable name already used by the devfile registry ? Did you really plan to change the devfile registry to adapt to the a new name ?

[ibuziuk]

IMO, it is a good idea to get rid of HTTPS env var part even if the changes for devfile registry are required

[amisevsk]

Devfile registry PR eclipse-che/che-devfile-registry#129

[ibuziuk]

LGTM

[ibuziuk]

@tomgeorge I believe we can remove WIP and ask for @davidfestal @skabashnyuk review

[tomgeorge]

@davidfestal @skabashnyuk removed the WIP tag. When you get a chance can you please review?

[nickboldt]

LGTM. Will this be included in 7.3.1? It's on the list so hoping it can be merged before 7.3.1 release starts on Monday.

[davidfestal]

LGTM