Support Loadbalancers

[guettli]

Goals

1. Support Loadbalancers for the Controlplane of workload clusters
2. Support Loadbalancers for Ingress controllers Service Type: LoadBalancer

User Story 1

As a operator I would like to get a workload-cluster with a high available controlplane for recilicence. If the control planes get replaced (and get new IPs), the endpoint for the controlplane should stay unchanged.

This is important, because the ControlPlaneEndpoint is part of the TLS cert, and changing it is not recommended.

User Story 2

As an application developer who creates software which get deployed to a workload-cluster, I want to be able to create Kubernetes Ingres Rules. The endpoints should be made available via a Loadbalancer, because I want my application to be available even if one or more machines are not available.

Alternatives

At the moment you could use MetalLB and work around this issue.

But in the long-run it is a maintenance burden.

TODO

• wait for Hivelocity API
• update CCM and CAPHV
• testing
• update docs.