fix outbound lb conversion for v1alpha3 clusters

Author: shysank

api/v1alpha3/azurecluster_conversion.go

@@ -42,37 +42,42 @@ func (src *AzureCluster) ConvertTo(dstRaw conversion.Hub) error { // nolint
 			dst.Annotations = nil
 		}
 	}
+
+	// set default control plane outbound lb for private v1alpha3 clusters.
+	if src.Spec.NetworkSpec.APIServerLB.Type == Internal {
+		dst.Spec.NetworkSpec.ControlPlaneOutboundLB = &infrav1beta1.LoadBalancerSpec{
+			FrontendIPsCount: pointer.Int32Ptr(1),
+		}
+		// We also need to set the defaults here because "get" won't set defaults, and hence there is no mismatch when a client
+		// gets a v1alpha3 cluster.
+		dst.SetControlPlaneOutboundLBDefaults()
+	}
+
+	// set default node plane outbound lb for all v1alpha3 clusters.
+	dst.Spec.NetworkSpec.NodeOutboundLB = &infrav1beta1.LoadBalancerSpec{
+		FrontendIPsCount: pointer.Int32Ptr(1),
+	}
+	// We also need to set the defaults here because "get" won't set defaults, and hence there is no mismatch when a client
+	// gets a v1alpha3 cluster.
+	dst.SetNodeOutboundLBDefaults()
+
 	// Manually restore data.
 	restored := &infrav1beta1.AzureCluster{}
 	if ok, err := utilconversion.UnmarshalData(src, restored); err != nil || !ok {
 		return err
 	}
 
+	// override outbound lb if it's present in restored.
+	dst.Spec.NetworkSpec.ControlPlaneOutboundLB = restored.Spec.NetworkSpec.ControlPlaneOutboundLB
+	dst.Spec.NetworkSpec.NodeOutboundLB = restored.Spec.NetworkSpec.NodeOutboundLB
+
 	dst.Spec.NetworkSpec.PrivateDNSZoneName = restored.Spec.NetworkSpec.PrivateDNSZoneName
 
 	dst.Spec.NetworkSpec.APIServerLB.FrontendIPsCount = restored.Spec.NetworkSpec.APIServerLB.FrontendIPsCount
 	dst.Spec.NetworkSpec.APIServerLB.IdleTimeoutInMinutes = restored.Spec.NetworkSpec.APIServerLB.IdleTimeoutInMinutes
 	dst.Spec.CloudProviderConfigOverrides = restored.Spec.CloudProviderConfigOverrides
 	dst.Spec.BastionSpec = restored.Spec.BastionSpec
 
-	// set default control plane outbound lb for private v1alpha3 clusters
-	if src.Spec.NetworkSpec.APIServerLB.Type == Internal && restored.Spec.NetworkSpec.ControlPlaneOutboundLB == nil {
-		dst.Spec.NetworkSpec.ControlPlaneOutboundLB = &infrav1beta1.LoadBalancerSpec{
-			FrontendIPsCount: pointer.Int32Ptr(1),
-		}
-	} else {
-		dst.Spec.NetworkSpec.ControlPlaneOutboundLB = restored.Spec.NetworkSpec.ControlPlaneOutboundLB
-	}
-
-	// set default node plane outbound lb for all v1alpha3 clusters
-	if restored.Spec.NetworkSpec.NodeOutboundLB == nil {
-		dst.Spec.NetworkSpec.NodeOutboundLB = &infrav1beta1.LoadBalancerSpec{
-			FrontendIPsCount: pointer.Int32Ptr(1),
-		}
-	} else {
-		dst.Spec.NetworkSpec.NodeOutboundLB = restored.Spec.NetworkSpec.NodeOutboundLB
-	}
-
 	// Here we manually restore outbound security rules. Since v1alpha3 only supports ingress ("Inbound") rules, all v1alpha4/v1beta1 outbound rules are dropped when an AzureCluster
 	// is converted to v1alpha3. We loop through all security group rules. For all previously existing outbound rules we restore the full rule.
 	for _, restoredSubnet := range restored.Spec.NetworkSpec.Subnets {

api/v1beta1/azurecluster_default.go

@@ -55,8 +55,8 @@ func (c *AzureCluster) setNetworkSpecDefaults() {
 	c.setSubnetDefaults()
 	c.setVnetPeeringDefaults()
 	c.setAPIServerLBDefaults()
-	c.setNodeOutboundLBDefaults()
-	c.setControlPlaneOutboundLBDefaults()
+	c.SetNodeOutboundLBDefaults()
+	c.SetControlPlaneOutboundLBDefaults()
 }
 
 func (c *AzureCluster) setResourceGroupDefault() {
@@ -205,7 +205,8 @@ func (c *AzureCluster) setAPIServerLBDefaults() {
 	}
 }
 
-func (c *AzureCluster) setNodeOutboundLBDefaults() {
+// SetNodeOutboundLBDefaults sets the node outbound lb defaults.
+func (c *AzureCluster) SetNodeOutboundLBDefaults() {
 	if c.Spec.NetworkSpec.NodeOutboundLB == nil {
 		if c.Spec.NetworkSpec.APIServerLB.Type == Internal {
 			return
@@ -245,7 +246,8 @@ func (c *AzureCluster) setNodeOutboundLBDefaults() {
 	c.setOutboundLBFrontendIPs(lb, generateNodeOutboundIPName)
 }
 
-func (c *AzureCluster) setControlPlaneOutboundLBDefaults() {
+// SetControlPlaneOutboundLBDefaults sets the control plane outbound lb defaults.
+func (c *AzureCluster) SetControlPlaneOutboundLBDefaults() {
 	// public clusters don't need control plane outbound lb
 	if c.Spec.NetworkSpec.APIServerLB.Type == Public {
 		return

api/v1beta1/azurecluster_default_test.go

@@ -1386,7 +1386,7 @@ func TestNodeOutboundLBDefaults(t *testing.T) {
 		tc := c
 		t.Run(tc.name, func(t *testing.T) {
 			t.Parallel()
-			tc.cluster.setNodeOutboundLBDefaults()
+			tc.cluster.SetNodeOutboundLBDefaults()
 			if !reflect.DeepEqual(tc.cluster, tc.output) {
 				expected, _ := json.MarshalIndent(tc.output, "", "\t")
 				actual, _ := json.MarshalIndent(tc.cluster, "", "\t")
@@ -1508,7 +1508,7 @@ func TestControlPlaneOutboundLBDefaults(t *testing.T) {
 		tc := c
 		t.Run(tc.name, func(t *testing.T) {
 			t.Parallel()
-			tc.cluster.setControlPlaneOutboundLBDefaults()
+			tc.cluster.SetControlPlaneOutboundLBDefaults()
 			if !reflect.DeepEqual(tc.cluster, tc.output) {
 				expected, _ := json.MarshalIndent(tc.output, "", "\t")
 				actual, _ := json.MarshalIndent(tc.cluster, "", "\t")