Adding validation rules into types

client/apis/volumegroupsnapshot/v1alpha1/types.go

@@ -36,6 +36,7 @@ type VolumeGroupSnapshotSpec struct {
 	// class will be used.
 	// Empty string is not allowed for this field.
 	// +optional
+	// +kubebuilder:validation:XValidation:rule="size(self) > 0",message="VolumeGroupSnapshotClassName must not be the empty string when set"
 	VolumeGroupSnapshotClassName *string `json:"volumeGroupSnapshotClassName,omitempty" protobuf:"bytes,2,opt,name=volumeGroupSnapshotClassName"`
 }
 
@@ -44,6 +45,8 @@ type VolumeGroupSnapshotSpec struct {
 // object should be used.
 // Exactly one of its members must be set.
 // Members in VolumeGroupSnapshotSource are immutable.
+// +kubebuilder:validation:XValidation:rule="!has(oldSelf.selector) || has(self.selector)", message="selector is required once set"
+// +kubebuilder:validation:XValidation:rule="!has(oldSelf.volumeGroupSnapshotContentName) || has(self.volumeGroupSnapshotContentName)", message="volumeGroupSnapshotContentName is required once set"
 type VolumeGroupSnapshotSource struct {
 	// Selector is a label query over persistent volume claims that are to be
 	// grouped together for snapshotting.
@@ -53,6 +56,7 @@ type VolumeGroupSnapshotSource struct {
 	// Once a VolumeGroupSnapshotContent is created and the sidecar starts to process
 	// it, the volume list will not change with retries.
 	// +optional
+	// +kubebuilder:validation:XValidation:rule="self == oldSelf",message="Spec.Source.Selector is immutable"
 	Selector *metav1.LabelSelector `json:"selector,omitempty" protobuf:"bytes,1,opt,name=selector"`
 
 	// VolumeGroupSnapshotContentName specifies the name of a pre-existing VolumeGroupSnapshotContent
@@ -61,6 +65,7 @@ type VolumeGroupSnapshotSource struct {
 	// only needs a representation in Kubernetes.
 	// This field is immutable.
 	// +optional
+	// +kubebuilder:validation:XValidation:rule="self == oldSelf",message="Spec.Source.VolumeGroupSnapshotContentName is immutable"
 	VolumeGroupSnapshotContentName *string `json:"volumeGroupSnapshotContentName,omitempty" protobuf:"bytes,2,opt,name=volumeGroupSnapshotContentName"`
 }
 
@@ -265,6 +270,9 @@ type VolumeGroupSnapshotContentSpec struct {
 	// VolumeGroupSnapshot object MUST be provided for binding to happen.
 	// This field is immutable after creation.
 	// Required.
+	// +kubebuilder:validation:XValidation:rule="has(self.name) && has(self.__namespace__)",message="both Spec.VolumeGroupSnapshotRef.Name and Spec.VolumeGroupSnapshotRef.Namespace must be set"
+	// +kubebuilder:validation:XValidation:rule="self.name == oldSelf.name",message="Spec.VolumeGroupSnapshotRef.Name is immutable"
+	// +kubebuilder:validation:XValidation:rule="self.__namespace__ == oldSelf.__namespace__",message="Spec.VolumeGroupSnapshotRef.Namespace is immutable"
 	VolumeGroupSnapshotRef core_v1.ObjectReference `json:"volumeGroupSnapshotRef" protobuf:"bytes,1,opt,name=volumeGroupSnapshotRef"`
 
 	// DeletionPolicy determines whether this VolumeGroupSnapshotContent and the
@@ -347,11 +355,14 @@ type VolumeGroupSnapshotContentStatus struct {
 // VolumeGroupSnapshotContentSource represents the CSI source of a group snapshot.
 // Exactly one of its members must be set.
 // Members in VolumeGroupSnapshotContentSource are immutable.
+// +kubebuilder:validation:XValidation:rule="!has(oldSelf.volumeHandle) || has(self.volumeHandle)", message="volumeHandle is required once set"
+// +kubebuilder:validation:XValidation:rule="!has(oldSelf.groupSnapshotHandles) || has(self.groupSnapshotHandles)", message="groupSnapshotHandles is required once set"
 type VolumeGroupSnapshotContentSource struct {
 	// VolumeHandles is a list of volume handles on the backend to be snapshotted
 	// together. It is specified for dynamic provisioning of the VolumeGroupSnapshot.
 	// This field is immutable.
 	// +optional
+	// +kubebuilder:validation:XValidation:rule="self == oldSelf",message="Spec.Source.VolumeHandle is immutable"
 	VolumeHandles []string `json:"volumeHandles,omitempty" protobuf:"bytes,1,opt,name=volumeHandles"`
 
 	// GroupSnapshotHandles specifies the CSI "group_snapshot_id" of a pre-existing
@@ -360,6 +371,7 @@ type VolumeGroupSnapshotContentSource struct {
 	// representation was (or should be) created.
 	// This field is immutable.
 	// +optional
+	// +kubebuilder:validation:XValidation:rule="self == oldSelf",message="Spec.Source.GroupSnapshotHandles is immutable"
 	GroupSnapshotHandles *GroupSnapshotHandles `json:"groupSnapshotHandles,omitempty" protobuf:"bytes,2,opt,name=groupSnapshotHandles"`
 }
 

client/apis/volumesnapshot/v1/types.go

@@ -91,6 +91,7 @@ type VolumeSnapshotSpec struct {
 	// CreateSnapshot will fail and generate an event.
 	// Empty string is not allowed for this field.
 	// +optional
+	// +kubebuilder:validation:XValidation:rule="size(self) > 0",message="volumeSnapshotClassName must not be the empty string when set"
 	VolumeSnapshotClassName *string `json:"volumeSnapshotClassName,omitempty" protobuf:"bytes,2,opt,name=volumeSnapshotClassName"`
 }
 
@@ -99,6 +100,8 @@ type VolumeSnapshotSpec struct {
 // object should be used.
 // Exactly one of its members must be set.
 // Members in VolumeSnapshotSource are immutable.
+// +kubebuilder:validation:XValidation:rule="!has(oldSelf.persistentVolumeClaimName) || has(self.persistentVolumeClaimName)", message="persistentVolumeClaimName is required once set"
+// +kubebuilder:validation:XValidation:rule="!has(oldSelf.volumeSnapshotContentName) || has(self.volumeSnapshotContentName)", message="volumeSnapshotContentName is required once set"
 type VolumeSnapshotSource struct {
 	// persistentVolumeClaimName specifies the name of the PersistentVolumeClaim
 	// object representing the volume from which a snapshot should be created.
@@ -108,13 +111,15 @@ type VolumeSnapshotSource struct {
 	// created.
 	// This field is immutable.
 	// +optional
+	// +kubebuilder:validation:XValidation:rule="self == oldSelf",message="Spec.Source.PersistentVolumeClaimName is immutable"
 	PersistentVolumeClaimName *string `json:"persistentVolumeClaimName,omitempty" protobuf:"bytes,1,opt,name=persistentVolumeClaimName"`
 
 	// volumeSnapshotContentName specifies the name of a pre-existing VolumeSnapshotContent
 	// object representing an existing volume snapshot.
 	// This field should be set if the snapshot already exists and only needs a representation in Kubernetes.
 	// This field is immutable.
 	// +optional
+	// +kubebuilder:validation:XValidation:rule="self == oldSelf",message="Spec.Source.VolumeSnapshotContentName is immutable"
 	VolumeSnapshotContentName *string `json:"volumeSnapshotContentName,omitempty" protobuf:"bytes,2,opt,name=volumeSnapshotContentName"`
 }
 
@@ -289,6 +294,7 @@ type VolumeSnapshotContentList struct {
 }
 
 // VolumeSnapshotContentSpec is the specification of a VolumeSnapshotContent
+// +kubebuilder:validation:XValidation:rule="!has(oldSelf.sourceVolumeMode) || has(self.sourceVolumeMode)", message="sourceVolumeMode is required once set"
 type VolumeSnapshotContentSpec struct {
 	// volumeSnapshotRef specifies the VolumeSnapshot object to which this
 	// VolumeSnapshotContent object is bound.
@@ -298,6 +304,7 @@ type VolumeSnapshotContentSpec struct {
 	// VolumeSnapshot object MUST be provided for binding to happen.
 	// This field is immutable after creation.
 	// Required.
+	// +kubebuilder:validation:XValidation:rule="has(self.name) && has(self.__namespace__)",message="both spec.volumeSnapshotRef.name and spec.volumeSnapshotRef.namespace must be set"
 	VolumeSnapshotRef core_v1.ObjectReference `json:"volumeSnapshotRef" protobuf:"bytes,1,opt,name=volumeSnapshotRef"`
 
 	// deletionPolicy determines whether this VolumeSnapshotContent and its physical snapshot on
@@ -340,24 +347,29 @@ type VolumeSnapshotContentSpec struct {
 	// This field is immutable.
 	// This field is an alpha field.
 	// +optional
+	// +kubebuilder:validation:XValidation:rule="self == oldSelf",message="Spec.sourceVolumeMode is immutable"
 	SourceVolumeMode *core_v1.PersistentVolumeMode `json:"sourceVolumeMode" protobuf:"bytes,6,opt,name=sourceVolumeMode"`
 }
 
 // VolumeSnapshotContentSource represents the CSI source of a snapshot.
 // Exactly one of its members must be set.
 // Members in VolumeSnapshotContentSource are immutable.
+// +kubebuilder:validation:XValidation:rule="!has(oldSelf.volumeHandle) || has(self.volumeHandle)", message="volumeHandle is required once set"
+// +kubebuilder:validation:XValidation:rule="!has(oldSelf.snapshotHandle) || has(self.snapshotHandle)", message="snapshotHandle is required once set"
 type VolumeSnapshotContentSource struct {
 	// volumeHandle specifies the CSI "volume_id" of the volume from which a snapshot
 	// should be dynamically taken from.
 	// This field is immutable.
 	// +optional
+	// +kubebuilder:validation:XValidation:rule="self == oldSelf",message="Spec.Source.VolumeHandle is immutable"
 	VolumeHandle *string `json:"volumeHandle,omitempty" protobuf:"bytes,1,opt,name=volumeHandle"`
 
 	// snapshotHandle specifies the CSI "snapshot_id" of a pre-existing snapshot on
 	// the underlying storage system for which a Kubernetes object representation
 	// was (or should be) created.
 	// This field is immutable.
 	// +optional
+	// +kubebuilder:validation:XValidation:rule="self == oldSelf",message="Spec.Source.SnapshotHandle is immutable"
 	SnapshotHandle *string `json:"snapshotHandle,omitempty" protobuf:"bytes,2,opt,name=snapshotHandle"`
 }