Add an ability to disable/adopt LoadBalancer

[a13x5]

trafficstars

/kind feature

The problem

Currently when reconciling AWSCluster all resources needed for cluster to function are created. This works well when you have all nodes as instances. However this approach doesn't quite work when you have control plane inside kubernetes cluster (like in case of k0sproject/k0smotron).

When load balancer is managed externally it creates a conflict:

• CAPA controller creates LB and updates .spec.controlPlaneEndpoint of AWSCluster
• Hosted control plane provider creates LB by means of Kubernetes Service and updates .spec.controlPlaneEndpoint of AWSCluster

Since it's impossible to use CAPA without creating AWSCluster current work around is to put cluster.x-k8s.io/managed-by annotation and disable AWSCluster reconcile, which is suboptimal.

Desired solution

I see 2 ways to resolve this:

1. New id field is added to the AWSLoadBalancerSpec with an ability to adopt externally created LBs and thus skipping creation of the new LB.
2. New disableCreation field is added to the AWSLoadBalancerSpec which simply disables creation of LB completely.

This will allow to use CAPA in deployment scenarios where LB is managed externally.

[k8s-ci-robot]

This issue is currently awaiting triage.

If CAPA/CAPI contributors determines this is a relevant issue, they will accept it by applying the triage/accepted label and provide further guidance.

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[k8s-triage-robot]

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/lifecycle stale

[k8s-triage-robot]

The Kubernetes project currently lacks enough active contributors to adequately respond to all issues.

This bot triages un-triaged issues according to the following rules:

• After 90d of inactivity, lifecycle/stale is applied
• After 30d of inactivity since lifecycle/stale was applied, lifecycle/rotten is applied
• After 30d of inactivity since lifecycle/rotten was applied, the issue is closed

You can:

• Mark this issue as fresh with /remove-lifecycle rotten
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• Offer to help out with Issue Triage

Please send feedback to sig-contributor-experience at kubernetes/community.

/lifecycle rotten

[k8s-triage-robot]

The Kubernetes project currently lacks enough active contributors to adequately respond to all issues and PRs.

This bot triages issues according to the following rules:

• After 90d of inactivity, lifecycle/stale is applied
• After 30d of inactivity since lifecycle/stale was applied, lifecycle/rotten is applied
• After 30d of inactivity since lifecycle/rotten was applied, the issue is closed

You can:

• Reopen this issue with /reopen
• Mark this issue as fresh with /remove-lifecycle rotten
• Offer to help out with Issue Triage

Please send feedback to sig-contributor-experience at kubernetes/community.

/close not-planned

[k8s-ci-robot]

@k8s-triage-robot: Closing this issue, marking it as "Not Planned".

In response to this:

The Kubernetes project currently lacks enough active contributors to adequately respond to all issues and PRs.

This bot triages issues according to the following rules:

• After 90d of inactivity, lifecycle/stale is applied
• After 30d of inactivity since lifecycle/stale was applied, lifecycle/rotten is applied
• After 30d of inactivity since lifecycle/rotten was applied, the issue is closed

You can:

• Reopen this issue with /reopen
• Mark this issue as fresh with /remove-lifecycle rotten
• Offer to help out with Issue Triage

Please send feedback to sig-contributor-experience at kubernetes/community.

/close not-planned

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes-sigs/prow repository.