allow custom (non-propagating) sts metadata

pkg/apis/minio.min.io/v2/types.go

@@ -318,6 +318,11 @@ type TenantSpec struct {
 	ServiceMetadata *ServiceMetadata `json:"serviceMetadata,omitempty"`
 	// *Optional* +
 	//
+	// Specify custom labels and annotations to append to the MinIO statefulsets.
+	// +optional
+	StatefulSetMetadata *StatefulSetMetadata `json:"statefulSetMetadata,omitempty"`
+	// *Optional* +
+	//
 	// An array of https://kubernetes.io/docs/concepts/configuration/secret/[Kubernetes opaque secrets] to use for generating MinIO users during tenant provisioning. +
 	//
 	// Each element in the array is an object consisting of a key-value pair `name: <string>`, where the `<string>` references an opaque Kubernetes secret. +
@@ -397,6 +402,20 @@ type ServiceMetadata struct {
 	ConsoleServiceAnnotations map[string]string `json:"consoleServiceAnnotations,omitempty"`
 }
 
+// StatefulSetMetadata (`statefulSetMetadata`) defines custom labels and annotations for the MinIO stateful sets. +
+type StatefulSetMetadata struct {
+	// *Optional* +
+	//
+	// If provided, append these labels to the MinIO statefulset
+	// +optional
+	Labels map[string]string `json:"minioServiceLabels,omitempty"`
+	// *Optional* +
+	//
+	// If provided, append these annotations to the MinIO statefulset
+	// +optional
+	Annotations map[string]string `json:"minioServiceAnnotations,omitempty"`
+}
+
 // LocalCertificateReference (`externalCertSecret`, `externalCaCertSecret`,`clientCertSecret`) contains a Kubernetes secret containing TLS certificates or Certificate Authority files for use with enabling TLS in the MinIO Tenant. +
 type LocalCertificateReference struct {
 	// *Required* +

pkg/resources/statefulsets/minio-statefulset.go

@@ -628,8 +628,15 @@ func NewPool(args *NewPoolArgs) *appsv1.StatefulSet {
 		},
 	}
 	// Copy labels and annotations from the Tenant.Spec.Metadata
-	ssMeta.Labels = t.ObjectMeta.Labels
-	ssMeta.Annotations = t.ObjectMeta.Annotations
+	// unless `StatefulSetMetadata` is defined, then we'll copy it
+	// from there.
+	if t.Spec.StatefulSetMetadata != nil {
+		ssMeta.Labels = t.Spec.StatefulSetMetadata.Labels
+		ssMeta.Annotations = t.Spec.StatefulSetMetadata.Annotations
+	} else {
+		ssMeta.Labels = t.ObjectMeta.Labels
+		ssMeta.Annotations = t.ObjectMeta.Annotations
+	}
 
 	if ssMeta.Labels == nil {
 		ssMeta.Labels = make(map[string]string)