feat: Add ServiceLoadBalancerStatus API client and informers

- Created CustomResourceDefinition for ServiceLoadBalancerStatus.
- Implemented the ServiceLoadBalancerStatus client with CRUD operations.
- Added fake client for testing purposes.
- Generated informers and listers for ServiceLoadBalancerStatus resources.
- Ensured all generated code adheres to the Kubernetes API conventions.

Author: 08volt

apis/fqdnnetworkpolicy/v1alpha1/zz_generated.openapi.go

@@ -0,0 +1,18 @@
+load("@io_bazel_rules_go//go:def.bzl", "go_library")
+
+go_library(
+    name = "serviceloadbalancerstatus",
+    srcs = [
+        "doc.go",
+        "types.go",
+        "zz_generated.deepcopy.go",
+        "zz_generated.register.go",
+    ],
+    importpath = "github.com/GoogleCloudPlatform/gke-networking-api/apis/serviceloadbalancerstatus/v1",
+    visibility = ["//visibility:public"],
+    deps = [
+        "//vendor/k8s.io/apimachinery/pkg/apis/meta/v1:meta",
+        "//vendor/k8s.io/apimachinery/pkg/runtime",
+        "//vendor/k8s.io/apimachinery/pkg/runtime/schema",
+    ],
+)

apis/gcpfirewall/v1/zz_generated.openapi.go

@@ -0,0 +1,21 @@
+/*
+Copyright 2024 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    https://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+// Package v1 is the v1 version of the API.
+// +kubebuilder:object:generate=true
+// +groupName=networking.gke.io
+// +k8s:openapi-gen=true
+package v1

apis/network/v1/zz_generated.openapi.go

@@ -0,0 +1,69 @@
+/*
+Copyright 2025 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package v1
+
+import (
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+)
+
+// +genclient
+// +kubebuilder:object:root=true
+// +kubebuilder:subresource:status
+// +kubebuilder:resource:scope=Namespaced,shortName=slbs
+// +kubebuilder:storageversion
+// +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object
+
+// ServiceLoadBalancerStatus holds the mapping between a GKE Service and the GCE resources it configures.
+type ServiceLoadBalancerStatus struct {
+	metav1.TypeMeta   `json:",inline"`
+	metav1.ObjectMeta `json:"metadata,omitempty"`
+
+	// Spec defines the desired state of ServiceLoadBalancerStatus.
+	// This field is currently unused.
+	// +optional
+	Spec ServiceLoadBalancerStatusSpec `json:"spec,omitempty"`
+
+	// Status defines the observed state of ServiceLoadBalancerStatus.
+	// This field is populated by the controller with the list of GCE resources.
+	// +optional
+	Status ServiceLoadBalancerStatusStatus `json:"status,omitempty"`
+}
+
+// ServiceLoadBalancerStatusSpec is the spec for a ServiceLoadBalancerStatus resource
+type ServiceLoadBalancerStatusSpec struct{}
+
+// ServiceLoadBalancerStatusStatus defines the observed state of ServiceLoadBalancerStatus.
+type ServiceLoadBalancerStatusStatus struct {
+	// GceResources is a list of URLs for GCE resources provisioned and managed
+	// by the GKE controller for the referenced Service. This field is managed
+	// exclusively by the controller.
+	// +optional
+	// +listType=set
+	GceResources []string `json:"gceResources,omitempty"`
+}
+
+// +kubebuilder:object:root=true
+// +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object
+// ServiceLoadBalancerStatusList contains a list of ServiceLoadBalancerStatus.
+type ServiceLoadBalancerStatusList struct {
+	metav1.TypeMeta `json:",inline"`
+	// +optional
+	metav1.ListMeta `json:"metadata,omitempty"`
+
+	// Items is the list of ServiceLoadBalancerStatus.
+	Items []ServiceLoadBalancerStatus `json:"items"`
+}