Helm Ops Part 2

[manno]

Follow up for https://github.com/rancher/fleet/issues/2962 Updated from the RFC

• make sure GitOps bundle is not overwritten by helmapp of the same name, collision
• support three chart sources: tarball, helm oci registry, helm http repo
• add polling for registry, repo, allow semver constraints >= 1.0
• document under https://fleet.rancher.io/enableexperimental
• rename structs, crd to HelmOp
• fields in struct (notes from discussion with francesco):
  • spec.YAML unusable?
  • HelmApp.spec.helm.valuesFiles is a list of strings pointing to file paths. In Helm CLI context, the files are in the local system, I'm not sure in Fleet context where they are
• In HelmAppSpec, HelmSecretName and InsecureSkipTLSverify appear unused. There is BundleSpec.HelmAppOptions.* which is copied into them for the bundle options.
• copy api fields instead of embedding?
• use a new secret type for the helmapp secret
• what about pull image secrets, same namespace, different registries?

Ideas:

• optional: cleaner deployment options than GitRepo? Don't duplicate code comments?
  • less targetCustomization options (no url changes?)
• UI extension for marketplace?