fix: Small fixes/refactors based on PR feedback

Author: jamand

pkg/controller/selfhostedshootexposure/options.go

@@ -77,7 +77,7 @@ func (a *Actuator) DetermineOptions(ctx context.Context, exposure *extensionsv1a
 	}
 	a.Client.Scheme().Default(providerConfig)
 
-	if errs := validation.ValidateSelfHostedShootExposureConfig(providerConfig, field.NewPath("spec.providerConfig")); len(errs) > 0 {
+	if errs := validation.ValidateSelfHostedShootExposureConfig(providerConfig, field.NewPath("spec", "providerConfig")); len(errs) > 0 {
 		return nil, fmt.Errorf("invalid providerConfig: %w", errs.ToAggregate())
 	}
 

pkg/controller/selfhostedshootexposure/resources_loadbalancer.go

@@ -47,11 +47,10 @@ func (r *Resources) reconcileLoadBalancer(ctx context.Context, log logr.Logger)
 	if !r.loadBalancerNeedsUpdate(targets) {
 		return nil
 	}
-	// STACKIT's UpdateLoadBalancer is a single PUT covering all managed fields (targets, plan,
-	// ACL). UpdateLoadBalancerTargetPool would also work for target-only changes, but it returns
-	// only the TargetPool — we'd still need a follow-up GET to refresh r.LoadBalancer for the
-	// readiness check, so it costs an extra round-trip without a server-side latency win
-	// (STACKIT transitions the LB to PENDING on either write).
+	// STACKIT also exposes a partial target-pool update endpoint, but it returns only the
+	// TargetPool — we'd still need a follow-up GET to refresh r.LoadBalancer for the readiness
+	// check, so it costs an extra round-trip without a server-side latency win (STACKIT
+	// transitions the LB to PENDING on either write). Use the full PUT instead.
 	return r.updateLoadBalancer(ctx, log, targets)
 }
 

pkg/stackit/client/loadbalancing.go

@@ -17,7 +17,6 @@ type LoadBalancingClient interface {
 	GetLoadBalancer(ctx context.Context, name string) (*loadbalancer.LoadBalancer, error)
 	ListLoadBalancers(ctx context.Context) ([]loadbalancer.LoadBalancer, error)
 	UpdateLoadBalancer(ctx context.Context, name string, payload loadbalancer.UpdateLoadBalancerPayload) (*loadbalancer.LoadBalancer, error)
-	UpdateLoadBalancerTargetPool(ctx context.Context, name, targetPool string, payload loadbalancer.UpdateTargetPoolPayload) (*loadbalancer.TargetPool, error)
 	DeleteLoadBalancer(ctx context.Context, name string) error
 }
 
@@ -69,10 +68,6 @@ func (l loadBalancingClient) UpdateLoadBalancer(ctx context.Context, name string
 	return l.Client.UpdateLoadBalancer(ctx, l.projectID, l.region, name).UpdateLoadBalancerPayload(payload).Execute()
 }
 
-func (l loadBalancingClient) UpdateLoadBalancerTargetPool(ctx context.Context, name, targetPool string, payload loadbalancer.UpdateTargetPoolPayload) (*loadbalancer.TargetPool, error) {
-	return l.Client.UpdateTargetPool(ctx, l.projectID, l.region, name, targetPool).UpdateTargetPoolPayload(payload).Execute()
-}
-
 func (l loadBalancingClient) DeleteLoadBalancer(ctx context.Context, name string) error {
 	_, err := l.Client.DeleteLoadBalancer(ctx, l.projectID, l.region, name).Execute()
 	return err