[release-2.9] 🌱 Fix(ignition): Default version only if not storageType UnencryptedUserData

api/v1beta2/awsmachine_types.go

@@ -286,9 +286,10 @@ type CloudInit struct {
 // For more information on Ignition configuration, see https://coreos.github.io/butane/specs/
 type Ignition struct {
 	// Version defines which version of Ignition will be used to generate bootstrap data.
+	// Defaults to `2.3` if storageType is set to `ClusterObjectStore`.
+	// It will be ignored if storageType is set to `UnencryptedUserData`, as the userdata defines its own version.
 	//
 	// +optional
-	// +kubebuilder:default="2.3"
 	// +kubebuilder:validation:Enum="2.3";"3.0";"3.1";"3.2";"3.3";"3.4"
 	Version string `json:"version,omitempty"`
 

api/v1beta2/awsmachine_webhook.go

@@ -451,7 +451,9 @@ func (*awsMachineWebhook) Default(_ context.Context, obj runtime.Object) error {
 		r.Spec.CloudInit.SecureSecretsBackend = SecretBackendSecretsManager
 	}
 
-	if r.ignitionEnabled() && r.Spec.Ignition.Version == "" {
+	// Defaults the version field if StorageType is not set to `UnencryptedUserData`.
+	// When using `UnencryptedUserData` the version field is ignored because the userdata defines its version itself.
+	if r.ignitionEnabled() && r.Spec.Ignition.Version == "" && r.Spec.Ignition.StorageType != IgnitionStorageTypeOptionUnencryptedUserData {
 		r.Spec.Ignition.Version = DefaultIgnitionVersion
 	}
 	if r.ignitionEnabled() && r.Spec.Ignition.StorageType == "" {

config/crd/bases/infrastructure.cluster.x-k8s.io_awsmachinepools.yaml

@@ -1001,9 +1001,10 @@ spec:
                         type: array
                     type: object
                   version:
-                    default: "2.3"
-                    description: Version defines which version of Ignition will be
-                      used to generate bootstrap data.
+                    description: |-
+                      Version defines which version of Ignition will be used to generate bootstrap data.
+                      Defaults to `2.3` if storageType is set to `ClusterObjectStore`.
+                      It will be ignored if storageType is set to `UnencryptedUserData`, as the userdata defines its own version.
                     enum:
                     - "2.3"
                     - "3.0"

config/crd/bases/infrastructure.cluster.x-k8s.io_awsmachines.yaml

@@ -822,9 +822,10 @@ spec:
                         type: array
                     type: object
                   version:
-                    default: "2.3"
-                    description: Version defines which version of Ignition will be
-                      used to generate bootstrap data.
+                    description: |-
+                      Version defines which version of Ignition will be used to generate bootstrap data.
+                      Defaults to `2.3` if storageType is set to `ClusterObjectStore`.
+                      It will be ignored if storageType is set to `UnencryptedUserData`, as the userdata defines its own version.
                     enum:
                     - "2.3"
                     - "3.0"

config/crd/bases/infrastructure.cluster.x-k8s.io_awsmachinetemplates.yaml

@@ -741,9 +741,10 @@ spec:
                                 type: array
                             type: object
                           version:
-                            default: "2.3"
-                            description: Version defines which version of Ignition
-                              will be used to generate bootstrap data.
+                            description: |-
+                              Version defines which version of Ignition will be used to generate bootstrap data.
+                              Defaults to `2.3` if storageType is set to `ClusterObjectStore`.
+                              It will be ignored if storageType is set to `UnencryptedUserData`, as the userdata defines its own version.
                             enum:
                             - "2.3"
                             - "3.0"

exp/api/v1beta2/awsmachinepool_webhook.go

@@ -314,7 +314,9 @@ func (*AWSMachinePoolWebhook) Default(ctx context.Context, obj runtime.Object) e
 		r.Spec.DefaultInstanceWarmup.Duration = 300 * time.Second
 	}
 
-	if r.ignitionEnabled() && r.Spec.Ignition.Version == "" {
+	// Defaults the version field if StorageType is not set to `UnencryptedUserData`.
+	// When using `UnencryptedUserData` the version field is ignored because the userdata defines its version itself.
+	if r.ignitionEnabled() && r.Spec.Ignition.Version == "" && r.Spec.Ignition.StorageType != infrav1.IgnitionStorageTypeOptionUnencryptedUserData {
 		r.Spec.Ignition.Version = infrav1.DefaultIgnitionVersion
 	}
 	if r.ignitionEnabled() && r.Spec.Ignition.StorageType == "" {

pkg/cloud/services/ec2/launchtemplate.go

@@ -92,14 +92,17 @@ func (s *Service) ReconcileLaunchTemplate(
 	}
 
 	var ignitionStorageType = infrav1.DefaultMachinePoolIgnitionStorageType
-	var ignitionVersion = infrav1.DefaultIgnitionVersion
 	if ignition := ignitionScope.Ignition(); ignition != nil {
 		ignitionStorageType = ignition.StorageType
-		ignitionVersion = ignition.Version
 	}
 
 	var userDataForLaunchTemplate []byte
 	if bootstrapDataFormat == "ignition" && ignitionStorageType == infrav1.IgnitionStorageTypeOptionClusterObjectStore {
+		var ignitionVersion = infrav1.DefaultIgnitionVersion
+		if ignition := ignitionScope.Ignition(); ignition != nil {
+			ignitionVersion = ignition.Version
+		}
+
 		if s3Scope.Bucket() == nil {
 			return errors.New("using Ignition with `AWSMachinePool.spec.ignition.storageType=ClusterObjectStore` " +
 				"requires a cluster wide object storage configured at `AWSCluster.spec.s3Bucket`")