add support for KEDA ScaledObjects via ScaledObjectReconciler

Signed-off-by: Sanskar Jaiswal <sanskar.jaiswal@weave.works>

pkg/apis/flagger/v1beta1/canary.go

@@ -74,7 +74,7 @@ type CanarySpec struct {
 
 	// AutoscalerRef references an autoscaling resource
 	// +optional
-	AutoscalerRef *LocalObjectReference `json:"autoscalerRef,omitempty"`
+	AutoscalerRef *AutoscalerRefernce `json:"autoscalerRef,omitempty"`
 
 	// Reference to NGINX ingress resource
 	// +optional
@@ -413,6 +413,24 @@ type LocalObjectReference struct {
 	Name string `json:"name"`
 }
 
+type AutoscalerRefernce struct {
+	// API version of the scaler
+	// +optional
+	APIVersion string `json:"apiVersion,omitempty"`
+
+	// Kind of the scaler
+	// +optional
+	Kind string `json:"kind,omitempty"`
+
+	// Name of the scaler
+	Name string `json:"name"`
+
+	// PrimaryScalerQuery is the query to use for the primary scaler, if
+	// Flagger generates one.
+	// +optional
+	PrimaryScalerQuery string `json:"primaryScalerQuery"`
+}
+
 // CustomMetadata holds labels and annotations to set on generated objects.
 type CustomMetadata struct {
 	Labels      map[string]string `json:"labels,omitempty"`

pkg/apis/flagger/v1beta1/zz_generated.deepcopy.go

@@ -151,6 +151,22 @@ func (in *AlertProviderStatus) DeepCopy() *AlertProviderStatus {
 	return out
 }
 
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *AutoscalerRefernce) DeepCopyInto(out *AutoscalerRefernce) {
+	*out = *in
+	return
+}
+
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new AutoscalerRefernce.
+func (in *AutoscalerRefernce) DeepCopy() *AutoscalerRefernce {
+	if in == nil {
+		return nil
+	}
+	out := new(AutoscalerRefernce)
+	in.DeepCopyInto(out)
+	return out
+}
+
 // DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
 func (in *Canary) DeepCopyInto(out *Canary) {
 	*out = *in
@@ -422,7 +438,7 @@ func (in *CanarySpec) DeepCopyInto(out *CanarySpec) {
 	out.TargetRef = in.TargetRef
 	if in.AutoscalerRef != nil {
 		in, out := &in.AutoscalerRef, &out.AutoscalerRef
-		*out = new(LocalObjectReference)
+		*out = new(AutoscalerRefernce)
 		**out = **in
 	}
 	if in.IngressRef != nil {