fix: no dnsNameservers in InfrastructureStatus in SNA case (#34)

* fix: no dnsNameservers in InfrastructureStatus in SNA case

Signed-off-by: Niclas Schad <niclas.schad@stackit.cloud>

* set fctx.dnsNameservers to nil when retrieving the network fails

Signed-off-by: Niclas Schad <niclas.schad@stackit.cloud>

---------

Signed-off-by: Niclas Schad <niclas.schad@stackit.cloud>

Author: nschad

pkg/controller/infrastructure/stackit/infraflow/reconcile.go

@@ -98,6 +98,7 @@ func (fctx *FlowContext) ensureConfiguredNetwork(ctx context.Context) error {
 	networkID := *fctx.config.Networks.ID
 	network, err := fctx.iaasClient.GetNetworkById(ctx, networkID)
 	if err != nil {
+		fctx.dnsNameservers = nil
 		fctx.state.Set(IdentifierNetwork, "")
 		fctx.state.Set(NameNetwork, "")
 		return err
@@ -130,6 +131,10 @@ func (fctx *FlowContext) ensureConfiguredNetwork(ctx context.Context) error {
 		fctx.nodesCIDR = &snaConfig.WorkersCIDR
 	}
 
+	// Populate dnsNameservers for InfrastructureStatus from provided network
+	nameservers := networkIPv4Config.GetNameservers()
+	fctx.dnsNameservers = ptr.To(nameservers)
+
 	fctx.state.Set(IdentifierNetwork, networkID)
 	fctx.state.Set(NameNetwork, network.GetName())
 	return nil