[kots]: apply customization file to Installer

[mrsimonemms]

Description

Adds the config section to the KOTS dashboard for the customization file

NB this must be applied to a cluster which does not have Gitpod installed. If you have it installed, you must run helm un -n gitpod gitpod beforehand if you intend to change any labels with your customization file. This is because Kubernetes cannot change the labels of a deployment/daemonset/statefulset. As this is for a specific set of enterprise customers who have engaged us for support, this should be an acceptable compromise for the time being.

This may be fixed in a future PR.

This is not an issue if changing annotations

Related Issue(s)

Fixes #10910

How to test

Deploy via KOTS to a cluster, using this YAML as your customization file

customization:
  - apiVersion: apps/v1
    kind: Deployment
    metadata:
      name: server
      annotations:
        hello: world

When you next run it, kubectl get pods -n gitpod -l component=server -o jsonpath="{.items[0].metadata.annotations}" should have the annotation hello=word

Release Notes

[kots]: apply customization file to Installer

Documentation

Werft options:

• /werft with-preview

[corneliusludmann]

Just a tiny comment. Feel free to address and merge it.

/hold

[mrsimonemms]

/unhold