Ingress section has fallen into disrepair

[DickChesterwood]

It's been an open issue for too long, multiple problems with this section suggest a total re-record from scratch.

• course is now Desktop centred, ingress needs to be installed there.
• yaml schemas have changed - code is up to date but the videos don't reflect this
• Missing field "ingressClassName" now required - this should have been in the course yaml
• Get rid of the old websocket implementation as it causes further trouble here
• aws section needs reworking. Install should now be easier but the files need checking, especially the annotations. Do a full run on production cluster
• There's a vague mention of ALB early on, possibly this should be expanded (maybe take this offline from the course as it's arguably getting advanced)
• The TLS stuff (which is offline) is the most awkward part, the OP on the original Q&A was actually dealing with this rather than any of the above.

[DickChesterwood]

Pickup point for Tuesday, run up a cluster and get ingress.yaml working there.

I think the best way to handle the videos is to order a script and re-record, there are too many problems to patch up the existing.

[DickChesterwood]

All running fine with the two changes as outlined on the original Q&A. Although the changes are actually minimal, it's still worth a full re-record. Studio booked for 18/7/24, 13:00.

This will then roll on to #52