feat: add highest random weight in kubernetes CRD

pkg/provider/kubernetes/crd/traefikio/v1alpha1/ingressroute.go

@@ -114,10 +114,10 @@ type LoadBalancerSpec struct {
 	// It defaults to https when Kubernetes Service port is 443, http otherwise.
 	Scheme string `json:"scheme,omitempty"`
 	// Strategy defines the load balancing strategy between the servers.
-	// Supported values are: wrr (Weighed round-robin) and p2c (Power of two choices).
+	// Supported values are: wrr (Weighed round-robin), p2c (Power of two choices), and hrw (Highest Random Weight).
 	// RoundRobin value is deprecated and supported for backward compatibility.
 	// TODO: when the deprecated RoundRobin value will be removed, set the default value to wrr.
-	// +kubebuilder:validation:Enum=wrr;p2c;RoundRobin
+	// +kubebuilder:validation:Enum=wrr;p2c;hrw;RoundRobin
 	Strategy dynamic.BalancerStrategy `json:"strategy,omitempty"`
 	// PassHostHeader defines whether the client Host header is forwarded to the upstream Kubernetes Service.
 	// By default, passHostHeader is true.

pkg/provider/kubernetes/crd/traefikio/v1alpha1/service.go

@@ -44,6 +44,8 @@ type TraefikServiceSpec struct {
 	Weighted *WeightedRoundRobin `json:"weighted,omitempty"`
 	// Mirroring defines the Mirroring service configuration.
 	Mirroring *Mirroring `json:"mirroring,omitempty"`
+	// HighestRandomWeight defines the highest random weight service configuration.
+	HighestRandomWeight *HighestRandomWeight `json:"highestRandomWeight,omitempty"`
 }
 
 // +k8s:deepcopy-gen=true
@@ -86,3 +88,12 @@ type WeightedRoundRobin struct {
 	// More info: https://doc.traefik.io/traefik/v3.5/routing/providers/kubernetes-crd/#stickiness-and-load-balancing
 	Sticky *dynamic.Sticky `json:"sticky,omitempty"`
 }
+
+// +k8s:deepcopy-gen=true
+
+// HighestRandomWeight holds the highest random weight configuration.
+// More info: https://doc.traefik.io/traefik/v3.5/routing/services/#highest-random-configuration
+type HighestRandomWeight struct {
+	// Services defines the list of Kubernetes Service and/or TraefikService to load-balance, with weight.
+	Services []Service `json:"services,omitempty"`
+}

pkg/provider/kubernetes/crd/traefikio/v1alpha1/zz_generated.deepcopy.go

@@ -349,6 +349,29 @@ func (in *ForwardingTimeouts) DeepCopy() *ForwardingTimeouts {
 	return out
 }
 
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *HighestRandomWeight) DeepCopyInto(out *HighestRandomWeight) {
+	*out = *in
+	if in.Services != nil {
+		in, out := &in.Services, &out.Services
+		*out = make([]Service, len(*in))
+		for i := range *in {
+			(*in)[i].DeepCopyInto(&(*out)[i])
+		}
+	}
+	return
+}
+
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new HighestRandomWeight.
+func (in *HighestRandomWeight) DeepCopy() *HighestRandomWeight {
+	if in == nil {
+		return nil
+	}
+	out := new(HighestRandomWeight)
+	in.DeepCopyInto(out)
+	return out
+}
+
 // DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
 func (in *IngressRoute) DeepCopyInto(out *IngressRoute) {
 	*out = *in
@@ -2028,6 +2051,11 @@ func (in *TraefikServiceSpec) DeepCopyInto(out *TraefikServiceSpec) {
 		*out = new(Mirroring)
 		(*in).DeepCopyInto(*out)
 	}
+	if in.HighestRandomWeight != nil {
+		in, out := &in.HighestRandomWeight, &out.HighestRandomWeight
+		*out = new(HighestRandomWeight)
+		(*in).DeepCopyInto(*out)
+	}
 	return
 }