Merge pull request #16262 from hakman/dns-none-aws-and-gce

Use dns=none for newly created clusters including for AWS and GCE
2024-01-19 12:11:21 +01:00 · 2024-01-19 12:11:21 +01:00 · 13d58b153b
parent a581c1f49c 6013fcc551
commit 13d58b153b
32 changed files with 104 additions and 92 deletions
--- a/tests/integration/create_cluster/cilium-eni/expected-v1alpha2.yaml
+++ b/tests/integration/create_cluster/cilium-eni/expected-v1alpha2.yaml
@ -5,7 +5,9 @@ metadata:
  name: minimal.example.com
 spec:
  api:
-    dns: {}
+    loadBalancer:
+      class: Network
+      type: Public
  authorization:
    rbac: {}
  channel: stable
@ -41,7 +43,6 @@ spec:
  - 0.0.0.0/0
  - ::/0
  kubernetesVersion: v1.26.0
-  masterPublicName: api.minimal.example.com
  networkCIDR: 172.20.0.0/16
  networking:
    cilium:
@ -58,7 +59,7 @@ spec:
    zone: us-test-1a
  topology:
    dns:
-      type: Public
+      type: None

 ---

--- a/tests/integration/create_cluster/complex-private/expected-v1alpha2.yaml
+++ b/tests/integration/create_cluster/complex-private/expected-v1alpha2.yaml
@ -58,7 +58,6 @@ spec:
  - 0.0.0.0/0
  - ::/0
  kubernetesVersion: v1.26.0
-  masterPublicName: api.complex.example.com
  networkCIDR: 10.0.0.0/16
  networking:
    cni: {}
@ -126,7 +125,7 @@ spec:
    bastion:
      bastionPublicName: bastion.complex.example.com
    dns:
-      type: Public
+      type: None

 ---

--- a/tests/integration/create_cluster/complex/expected-v1alpha2.yaml
+++ b/tests/integration/create_cluster/complex/expected-v1alpha2.yaml
@ -10,7 +10,9 @@ spec:
  - 10.3.0.0/16
  - 10.4.0.0/16
  api:
-    dns: {}
+    loadBalancer:
+      class: Network
+      type: Public
  authorization:
    rbac: {}
  channel: stable
@ -56,7 +58,6 @@ spec:
  - 0.0.0.0/0
  - ::/0
  kubernetesVersion: v1.26.0
-  masterPublicName: api.complex.example.com
  networkCIDR: 10.0.0.0/16
  networking:
    cni: {}
@ -94,7 +95,7 @@ spec:
    zone: us-test-1a
  topology:
    dns:
-      type: Public
+      type: None

 ---

--- a/tests/integration/create_cluster/gce_byo_sa/expected-v1alpha2.yaml
+++ b/tests/integration/create_cluster/gce_byo_sa/expected-v1alpha2.yaml
@ -5,7 +5,8 @@ metadata:
  name: gce.example.com
 spec:
  api:
-    dns: {}
+    loadBalancer:
+      type: Public
  authorization:
    rbac: {}
  channel: stable
@ -39,7 +40,6 @@ spec:
  - 0.0.0.0/0
  - ::/0
  kubernetesVersion: v1.21.0
-  masterPublicName: api.gce.example.com
  networking:
    cni: {}
  nonMasqueradeCIDR: 100.64.0.0/10
@ -54,7 +54,7 @@ spec:
    type: Public
  topology:
    dns:
-      type: Public
+      type: None

 ---

--- a/tests/integration/create_cluster/ha/expected-v1alpha2.yaml
+++ b/tests/integration/create_cluster/ha/expected-v1alpha2.yaml
@ -5,7 +5,9 @@ metadata:
  name: ha.example.com
 spec:
  api:
-    dns: {}
+    loadBalancer:
+      class: Network
+      type: Public
  authorization:
    rbac: {}
  channel: stable
@ -51,7 +53,6 @@ spec:
  - 0.0.0.0/0
  - ::/0
  kubernetesVersion: v1.26.0
-  masterPublicName: api.ha.example.com
  networkCIDR: 172.20.0.0/16
  networking:
    cni: {}
@ -74,7 +75,7 @@ spec:
    zone: us-test-1c
  topology:
    dns:
-      type: Public
+      type: None

 ---

--- a/tests/integration/create_cluster/ha_encrypt/expected-v1alpha2.yaml
+++ b/tests/integration/create_cluster/ha_encrypt/expected-v1alpha2.yaml
@ -5,7 +5,9 @@ metadata:
  name: ha.example.com
 spec:
  api:
-    dns: {}
+    loadBalancer:
+      class: Network
+      type: Public
  authorization:
    rbac: {}
  channel: stable
@ -51,7 +53,6 @@ spec:
  - 0.0.0.0/0
  - ::/0
  kubernetesVersion: v1.21.0
-  masterPublicName: api.ha.example.com
  networkCIDR: 172.20.0.0/16
  networking:
    cni: {}
@ -74,7 +75,7 @@ spec:
    zone: us-test-1c
  topology:
    dns:
-      type: Public
+      type: None

 ---

--- a/tests/integration/create_cluster/ha_gce/expected-v1alpha2.yaml
+++ b/tests/integration/create_cluster/ha_gce/expected-v1alpha2.yaml
@ -5,7 +5,8 @@ metadata:
  name: ha-gce.example.com
 spec:
  api:
-    dns: {}
+    loadBalancer:
+      type: Public
  authorization:
    rbac: {}
  channel: stable
@ -46,7 +47,6 @@ spec:
  - 0.0.0.0/0
  - ::/0
  kubernetesVersion: v1.26.0
-  masterPublicName: api.ha-gce.example.com
  networking:
    cni: {}
  nonMasqueradeCIDR: 100.64.0.0/10
@ -61,7 +61,7 @@ spec:
    type: Public
  topology:
    dns:
-      type: Public
+      type: None

 ---

--- a/tests/integration/create_cluster/ha_shared_zone/expected-v1alpha2.yaml
+++ b/tests/integration/create_cluster/ha_shared_zone/expected-v1alpha2.yaml
@ -5,7 +5,9 @@ metadata:
  name: ha.example.com
 spec:
  api:
-    dns: {}
+    loadBalancer:
+      class: Network
+      type: Public
  authorization:
    rbac: {}
  channel: stable
@ -51,7 +53,6 @@ spec:
  - 0.0.0.0/0
  - ::/0
  kubernetesVersion: v1.26.0
-  masterPublicName: api.ha.example.com
  networkCIDR: 172.20.0.0/16
  networking:
    cni: {}
@ -66,7 +67,7 @@ spec:
    zone: us-test-1a
  topology:
    dns:
-      type: Public
+      type: None

 ---

--- a/tests/integration/create_cluster/ha_shared_zones/expected-v1alpha2.yaml
+++ b/tests/integration/create_cluster/ha_shared_zones/expected-v1alpha2.yaml
@ -5,7 +5,9 @@ metadata:
  name: ha.example.com
 spec:
  api:
-    dns: {}
+    loadBalancer:
+      class: Network
+      type: Public
  authorization:
    rbac: {}
  channel: stable
@ -63,7 +65,6 @@ spec:
  - 0.0.0.0/0
  - ::/0
  kubernetesVersion: v1.26.0
-  masterPublicName: api.ha.example.com
  networkCIDR: 172.20.0.0/16
  networking:
    cni: {}
@ -82,7 +83,7 @@ spec:
    zone: us-test-1b
  topology:
    dns:
-      type: Public
+      type: None

 ---

--- a/tests/integration/create_cluster/ingwspecified/expected-v1alpha2.yaml
+++ b/tests/integration/create_cluster/ingwspecified/expected-v1alpha2.yaml
@ -41,7 +41,6 @@ spec:
  - 0.0.0.0/0
  - ::/0
  kubernetesVersion: v1.26.0
-  masterPublicName: api.private.example.com
  networkCIDR: 172.20.0.0/16
  networking:
    cni: {}
@ -63,7 +62,7 @@ spec:
    bastion:
      bastionPublicName: bastion.private.example.com
    dns:
-      type: Public
+      type: None

 ---

--- a/tests/integration/create_cluster/ipv6/expected-v1alpha2.yaml
+++ b/tests/integration/create_cluster/ipv6/expected-v1alpha2.yaml
@ -42,7 +42,6 @@ spec:
  - 0.0.0.0/0
  - ::/0
  kubernetesVersion: v1.22.0
-  masterPublicName: api.ipv6.example.com
  networkCIDR: 172.20.0.0/16
  networking:
    calico: {}
@ -67,7 +66,7 @@ spec:
    zone: us-test-1a
  topology:
    dns:
-      type: Public
+      type: None

 ---

--- a/tests/integration/create_cluster/karpenter/expected-v1alpha2.yaml
+++ b/tests/integration/create_cluster/karpenter/expected-v1alpha2.yaml
@ -5,7 +5,9 @@ metadata:
  name: karpenter.example.com
 spec:
  api:
-    dns: {}
+    loadBalancer:
+      class: Network
+      type: Public
  authorization:
    rbac: {}
  channel: stable
@ -42,7 +44,6 @@ spec:
  - 0.0.0.0/0
  - ::/0
  kubernetesVersion: v1.23.0
-  masterPublicName: api.karpenter.example.com
  networkCIDR: 172.20.0.0/16
  networking:
    calico: {}
@ -68,7 +69,7 @@ spec:
    zone: us-test-1c
  topology:
    dns:
-      type: Public
+      type: None

 ---

--- a/tests/integration/create_cluster/minimal-1.24/expected-v1alpha2.yaml
+++ b/tests/integration/create_cluster/minimal-1.24/expected-v1alpha2.yaml
@ -5,7 +5,9 @@ metadata:
  name: minimal.example.com
 spec:
  api:
-    dns: {}
+    loadBalancer:
+      class: Network
+      type: Public
  authorization:
    rbac: {}
  channel: stable
@ -39,7 +41,6 @@ spec:
  - 0.0.0.0/0
  - ::/0
  kubernetesVersion: v1.24.0
-  masterPublicName: api.minimal.example.com
  networkCIDR: 172.20.0.0/16
  networking:
    cni: {}
@ -54,7 +55,7 @@ spec:
    zone: us-test-1a
  topology:
    dns:
-      type: Public
+      type: None

 ---

--- a/tests/integration/create_cluster/minimal-1.25/expected-v1alpha2.yaml
+++ b/tests/integration/create_cluster/minimal-1.25/expected-v1alpha2.yaml
@ -5,7 +5,9 @@ metadata:
  name: minimal.example.com
 spec:
  api:
-    dns: {}
+    loadBalancer:
+      class: Network
+      type: Public
  authorization:
    rbac: {}
  channel: stable
@ -39,7 +41,6 @@ spec:
  - 0.0.0.0/0
  - ::/0
  kubernetesVersion: v1.25.0
-  masterPublicName: api.minimal.example.com
  networkCIDR: 172.20.0.0/16
  networking:
    cni: {}
@ -54,7 +55,7 @@ spec:
    zone: us-test-1a
  topology:
    dns:
-      type: Public
+      type: None

 ---

--- a/tests/integration/create_cluster/minimal-1.26-arm64/expected-v1alpha2.yaml
+++ b/tests/integration/create_cluster/minimal-1.26-arm64/expected-v1alpha2.yaml
@ -5,7 +5,9 @@ metadata:
  name: minimal.example.com
 spec:
  api:
-    dns: {}
+    loadBalancer:
+      class: Network
+      type: Public
  authorization:
    rbac: {}
  channel: stable
@ -39,7 +41,6 @@ spec:
  - 0.0.0.0/0
  - ::/0
  kubernetesVersion: v1.26.0
-  masterPublicName: api.minimal.example.com
  networkCIDR: 172.20.0.0/16
  networking:
    cni: {}
@ -54,7 +55,7 @@ spec:
    zone: us-test-1a
  topology:
    dns:
-      type: Public
+      type: None

 ---

--- a/tests/integration/create_cluster/minimal-1.26-gce/expected-v1alpha2.yaml
+++ b/tests/integration/create_cluster/minimal-1.26-gce/expected-v1alpha2.yaml
@ -5,7 +5,8 @@ metadata:
  name: minimal.example.com
 spec:
  api:
-    dns: {}
+    loadBalancer:
+      type: Public
  authorization:
    rbac: {}
  channel: stable
@ -38,7 +39,6 @@ spec:
  - 0.0.0.0/0
  - ::/0
  kubernetesVersion: v1.26.0
-  masterPublicName: api.minimal.example.com
  networking:
    cni: {}
  nonMasqueradeCIDR: 100.64.0.0/10
@ -53,7 +53,7 @@ spec:
    type: Public
  topology:
    dns:
-      type: Public
+      type: None

 ---

--- a/tests/integration/create_cluster/minimal-1.26-irsa/expected-v1alpha2.yaml
+++ b/tests/integration/create_cluster/minimal-1.26-irsa/expected-v1alpha2.yaml
@ -5,7 +5,9 @@ metadata:
  name: minimal.example.com
 spec:
  api:
-    dns: {}
+    loadBalancer:
+      class: Network
+      type: Public
  authorization:
    rbac: {}
  channel: stable
@ -40,7 +42,6 @@ spec:
  - 0.0.0.0/0
  - ::/0
  kubernetesVersion: v1.26.0
-  masterPublicName: api.minimal.example.com
  networkCIDR: 172.20.0.0/16
  networking:
    cni: {}
@ -58,7 +59,7 @@ spec:
    zone: us-test-1a
  topology:
    dns:
-      type: Public
+      type: None

 ---

--- a/tests/integration/create_cluster/minimal-1.26/expected-v1alpha2.yaml
+++ b/tests/integration/create_cluster/minimal-1.26/expected-v1alpha2.yaml
@ -5,7 +5,9 @@ metadata:
  name: minimal.example.com
 spec:
  api:
-    dns: {}
+    loadBalancer:
+      class: Network
+      type: Public
  authorization:
    rbac: {}
  channel: stable
@ -39,7 +41,6 @@ spec:
  - 0.0.0.0/0
  - ::/0
  kubernetesVersion: v1.26.0
-  masterPublicName: api.minimal.example.com
  networkCIDR: 172.20.0.0/16
  networking:
    cni: {}
@ -54,7 +55,7 @@ spec:
    zone: us-test-1a
  topology:
    dns:
-      type: Public
+      type: None

 ---

--- a/tests/integration/create_cluster/minimal-1.27/expected-v1alpha2.yaml
+++ b/tests/integration/create_cluster/minimal-1.27/expected-v1alpha2.yaml
@ -5,7 +5,9 @@ metadata:
  name: minimal.example.com
 spec:
  api:
-    dns: {}
+    loadBalancer:
+      class: Network
+      type: Public
  authorization:
    rbac: {}
  channel: stable
@ -39,7 +41,6 @@ spec:
  - 0.0.0.0/0
  - ::/0
  kubernetesVersion: v1.27.0
-  masterPublicName: api.minimal.example.com
  networkCIDR: 172.20.0.0/16
  networking:
    cni: {}
@ -54,7 +55,7 @@ spec:
    zone: us-test-1a
  topology:
    dns:
-      type: Public
+      type: None

 ---

--- a/tests/integration/create_cluster/minimal-1.28/expected-v1alpha2.yaml
+++ b/tests/integration/create_cluster/minimal-1.28/expected-v1alpha2.yaml
@ -5,7 +5,9 @@ metadata:
  name: minimal.example.com
 spec:
  api:
-    dns: {}
+    loadBalancer:
+      class: Network
+      type: Public
  authorization:
    rbac: {}
  channel: stable
@ -39,7 +41,6 @@ spec:
  - 0.0.0.0/0
  - ::/0
  kubernetesVersion: v1.28.0
-  masterPublicName: api.minimal.example.com
  networkCIDR: 172.20.0.0/16
  networking:
    cni: {}
@ -54,7 +55,7 @@ spec:
    zone: us-test-1a
  topology:
    dns:
-      type: Public
+      type: None

 ---

--- a/tests/integration/create_cluster/minimal-1.29-gce/expected-v1alpha2.yaml
+++ b/tests/integration/create_cluster/minimal-1.29-gce/expected-v1alpha2.yaml
@ -5,7 +5,8 @@ metadata:
  name: minimal.example.com
 spec:
  api:
-    dns: {}
+    loadBalancer:
+      type: Public
  authorization:
    rbac: {}
  channel: stable
@ -38,7 +39,6 @@ spec:
  - 0.0.0.0/0
  - ::/0
  kubernetesVersion: v1.29.0
-  masterPublicName: api.minimal.example.com
  networking:
    cni: {}
  nonMasqueradeCIDR: 100.64.0.0/10
@ -53,7 +53,7 @@ spec:
    type: Public
  topology:
    dns:
-      type: Public
+      type: None

 ---

--- a/tests/integration/create_cluster/minimal-1.29/expected-v1alpha2.yaml
+++ b/tests/integration/create_cluster/minimal-1.29/expected-v1alpha2.yaml
@ -5,7 +5,9 @@ metadata:
  name: minimal.example.com
 spec:
  api:
-    dns: {}
+    loadBalancer:
+      class: Network
+      type: Public
  authorization:
    rbac: {}
  channel: stable
@ -39,7 +41,6 @@ spec:
  - 0.0.0.0/0
  - ::/0
  kubernetesVersion: v1.29.0
-  masterPublicName: api.minimal.example.com
  networkCIDR: 172.20.0.0/16
  networking:
    cni: {}
@ -54,7 +55,7 @@ spec:
    zone: us-test-1a
  topology:
    dns:
-      type: Public
+      type: None

 ---

--- a/tests/integration/create_cluster/minimal_feature-gates/expected-v1alpha2.yaml
+++ b/tests/integration/create_cluster/minimal_feature-gates/expected-v1alpha2.yaml
@ -5,7 +5,9 @@ metadata:
  name: minimal.example.com
 spec:
  api:
-    dns: {}
+    loadBalancer:
+      class: Network
+      type: Public
  authorization:
    rbac: {}
  channel: stable
@ -63,7 +65,6 @@ spec:
  - 0.0.0.0/0
  - ::/0
  kubernetesVersion: v1.26.0
-  masterPublicName: api.minimal.example.com
  networkCIDR: 172.20.0.0/16
  networking:
    cni: {}
@ -78,7 +79,7 @@ spec:
    zone: us-test-1a
  topology:
    dns:
-      type: Public
+      type: None

 ---

--- a/tests/integration/create_cluster/ngwspecified/expected-v1alpha2.yaml
+++ b/tests/integration/create_cluster/ngwspecified/expected-v1alpha2.yaml
@ -41,7 +41,6 @@ spec:
  - 0.0.0.0/0
  - ::/0
  kubernetesVersion: v1.26.0
-  masterPublicName: api.private.example.com
  networkCIDR: 172.20.0.0/16
  networking:
    cni: {}
@ -63,7 +62,7 @@ spec:
    bastion:
      bastionPublicName: bastion.private.example.com
    dns:
-      type: Public
+      type: None

 ---

--- a/tests/integration/create_cluster/overrides/expected-v1alpha2.yaml
+++ b/tests/integration/create_cluster/overrides/expected-v1alpha2.yaml
@ -5,7 +5,9 @@ metadata:
  name: overrides.example.com
 spec:
  api:
-    dns: {}
+    loadBalancer:
+      class: Network
+      type: Public
  authorization:
    rbac: {}
  channel: stable
@ -39,7 +41,6 @@ spec:
  - 0.0.0.0/0
  - ::/0
  kubernetesVersion: v1.26.0
-  masterPublicName: api.overrides.example.com
  networkCIDR: 172.20.0.0/16
  networking:
    cni: {}
@ -57,7 +58,7 @@ spec:
    zone: us-test-1a
  topology:
    dns:
-      type: Public
+      type: None

 ---

--- a/tests/integration/create_cluster/private/expected-v1alpha2.yaml
+++ b/tests/integration/create_cluster/private/expected-v1alpha2.yaml
@ -45,7 +45,6 @@ spec:
  - 0.0.0.0/0
  - ::/0
  kubernetesVersion: v1.26.0
-  masterPublicName: api.private.example.com
  networkCIDR: 172.20.0.0/16
  networking:
    cni: {}
@ -66,7 +65,7 @@ spec:
    bastion:
      bastionPublicName: bastion.private.example.com
    dns:
-      type: Public
+      type: None

 ---

--- a/tests/integration/create_cluster/private_gce/expected-v1alpha2.yaml
+++ b/tests/integration/create_cluster/private_gce/expected-v1alpha2.yaml
@ -44,7 +44,6 @@ spec:
  - 0.0.0.0/0
  - ::/0
  kubernetesVersion: v1.26.0
-  masterPublicName: api.private.example.com
  networking:
    cni: {}
  nonMasqueradeCIDR: 100.64.0.0/10
@ -61,7 +60,7 @@ spec:
    bastion:
      bastionPublicName: bastion.private.example.com
    dns:
-      type: Public
+      type: None

 ---

--- a/tests/integration/create_cluster/private_shared_subnets/expected-v1alpha2.yaml
+++ b/tests/integration/create_cluster/private_shared_subnets/expected-v1alpha2.yaml
@ -41,7 +41,6 @@ spec:
  - 0.0.0.0/0
  - ::/0
  kubernetesVersion: v1.26.0
-  masterPublicName: api.private-subnets.example.com
  networkCIDR: 10.0.0.0/12
  networkID: vpc-12345678
  networking:
@ -63,7 +62,7 @@ spec:
    zone: us-test-1a
  topology:
    dns:
-      type: Public
+      type: None

 ---

--- a/tests/integration/create_cluster/shared_subnets/expected-v1alpha2.yaml
+++ b/tests/integration/create_cluster/shared_subnets/expected-v1alpha2.yaml
@ -5,7 +5,9 @@ metadata:
  name: subnet.example.com
 spec:
  api:
-    dns: {}
+    loadBalancer:
+      class: Network
+      type: Public
  authorization:
    rbac: {}
  channel: stable
@ -39,7 +41,6 @@ spec:
  - 0.0.0.0/0
  - ::/0
  kubernetesVersion: v1.26.0
-  masterPublicName: api.subnet.example.com
  networkCIDR: 10.0.0.0/12
  networkID: vpc-12345678
  networking:
@ -56,7 +57,7 @@ spec:
    zone: us-test-1a
  topology:
    dns:
-      type: Public
+      type: None

 ---

--- a/tests/integration/create_cluster/shared_subnets_vpc_lookup/expected-v1alpha2.yaml
+++ b/tests/integration/create_cluster/shared_subnets_vpc_lookup/expected-v1alpha2.yaml
@ -5,7 +5,9 @@ metadata:
  name: subnet.example.com
 spec:
  api:
-    dns: {}
+    loadBalancer:
+      class: Network
+      type: Public
  authorization:
    rbac: {}
  channel: stable
@ -39,7 +41,6 @@ spec:
  - 0.0.0.0/0
  - ::/0
  kubernetesVersion: v1.26.0
-  masterPublicName: api.subnet.example.com
  networkCIDR: 10.0.0.0/12
  networkID: vpc-12345678
  networking:
@ -56,7 +57,7 @@ spec:
    zone: us-test-1a
  topology:
    dns:
-      type: Public
+      type: None

 ---

--- a/tests/integration/create_cluster/shared_vpc/expected-v1alpha2.yaml
+++ b/tests/integration/create_cluster/shared_vpc/expected-v1alpha2.yaml
@ -5,7 +5,9 @@ metadata:
  name: vpc.example.com
 spec:
  api:
-    dns: {}
+    loadBalancer:
+      class: Network
+      type: Public
  authorization:
    rbac: {}
  channel: stable
@ -39,7 +41,6 @@ spec:
  - 0.0.0.0/0
  - ::/0
  kubernetesVersion: v1.26.0
-  masterPublicName: api.vpc.example.com
  networkCIDR: 10.0.0.0/12
  networkID: vpc-12345678
  networking:
@ -55,7 +56,7 @@ spec:
    zone: us-test-1a
  topology:
    dns:
-      type: Public
+      type: None

 ---

--- a/upup/pkg/fi/cloudup/new_cluster.go
+++ b/upup/pkg/fi/cloudup/new_cluster.go
@ -1418,13 +1418,12 @@ func setupDNSTopology(opt *NewClusterOptions, cluster *api.Cluster) error {
 		if opt.DNSZone != "" {
 			// Use dns=public if zone is specified
 			cluster.Spec.Networking.Topology.DNS = api.DNSTypePublic
-		} else if cluster.UsesLegacyGossip() {
-			// Use dns=none if .k8s.local is specified instead of Gossip
-			klog.Warningf("Gossip is deprecated, using None DNS instead")
-			cluster.Spec.Networking.Topology.DNS = api.DNSTypeNone
-		} else if cluster.Spec.GetCloudProvider() == api.CloudProviderAWS || cluster.Spec.GetCloudProvider() == api.CloudProviderGCE {
-			cluster.Spec.Networking.Topology.DNS = api.DNSTypePublic
 		} else {
+			if cluster.UsesLegacyGossip() {
+				// Warn about using dns=none instead of Gossip
+				klog.Warningf("Gossip is deprecated, using None DNS instead")
+			}
+			// Default to dns=none instead of dns=public for all cloud providers
 			cluster.Spec.Networking.Topology.DNS = api.DNSTypeNone
 		}
 	case "public":