docs: First iteration of FlowFuse on OpenShift

[ppawlowski]

Description

This pull request introduces a documentation about installing FlowFuse self-hosted on a OpenShift cluster using Helm chart.

Related Issue(s)

Closes #5075

Checklist

• I have read the contribution guidelines
• Suitable unit/system level tests have been added and they pass
• Documentation has been updated
  • Upgrade instructions
  • Configuration details
  • Concepts
• Changes flowforge.yml?
  • Issue/PR raised on FlowFuse/helm to update ConfigMap Template
  • Issue/PR raised on FlowFuse/CloudProject to update values for Staging/Production

Labels

• Includes a DB migration? -> add the area:migration label

[joepavitt]

Visually all looks sensible, but I'll need to defer to @hardillb for expertise/review of the actual instructions

[hardillb]

@ppawlowski just checking, when testing you took this all the way to standing up an instance and accessing the editor?

[ppawlowski]

@ppawlowski just checking, when testing you took this all the way to standing up an instance and accessing the editor?

That is correct - I was able to setup the FlowFuse platform with local database, run initial configuration and spin up fresh NodeRED instance.
The one bit about which I am not 100% sure is the requirement for the license - it comes from here - once I added the license I was able to run NR instance. That is why I put a license as a requirement.

[hardillb]

Yep, it was decided that OpenShift required a license early on, for now we keep it, but we should ask if it is still a valid business requirement. (we have a customer at the moment who hit this).

OK, looks good then so we can merge