feat: add CPU and memory request fields to NGINX Ingress Controller

api/v1alpha1/nginxingresscontroller_types.go

@@ -73,6 +73,19 @@ type NginxIngressControllerSpec struct {
 	// HTTPDisabled is a flag that disables HTTP traffic to the NginxIngressController
 	// +optional
 	HTTPDisabled bool `json:"httpDisabled,omitempty"`
+
+	// CPURequest is the CPU request for the NGINX Ingress Controller. This is used to set the CPU request for the NGINX Ingress Controller deployment.
+	// +kubebuilder:validation:Pattern=`^[0-9]+(m|M|[a-zA-Z]{1})$`
+	// +kubebuilder:default:=500m
+	// +kubebuilder:validation:Required
+	CPURequest string `json:"cpuRequest,omitempty"`
+
+	// MemoryRequest is the memory request for the NGINX Ingress Controller. This is used to set the memory request for the NGINX Ingress Controller deployment.
+	// +kubebuilder:validation:Pattern=`^[0-9]+(Mi|Gi|[a-zA-Z]{1})$`
+	// +kubebuilder:default:=127Mi
+	// +kubebuilder:validation:Required
+
+	MemoryRequest string `json:"memoryRequest,omitempty"`
 }
 
 // DefaultSSLCertificate holds a secret in the form of a secret struct with name and namespace properties or a key vault uri

pkg/controller/nginxingress/nginx_ingress_controller.go

@@ -570,6 +570,8 @@ func ToNginxIngressConfig(nic *approutingv1alpha1.NginxIngressController, defaul
 		MinReplicas:                    minReplicas,
 		MaxReplicas:                    maxReplicas,
 		TargetCPUUtilizationPercentage: getTargetCPUUtilizationPercentage(nic),
+		CPURequest: 				    nic.Spec.CPURequest,
+		MemoryRequest: 				    nic.Spec.MemoryRequest,
 	}
 
 	if cert := nic.Spec.DefaultSSLCertificate; cert != nil {

pkg/manifests/nginx.go

@@ -478,8 +478,8 @@ func newNginxIngressControllerDeployment(conf *config.Config, ingressConfig *Ngi
 						},
 						Resources: corev1.ResourceRequirements{
 							Requests: corev1.ResourceList{
-								corev1.ResourceCPU:    resource.MustParse("500m"),
-								corev1.ResourceMemory: resource.MustParse("127Mi"),
+								corev1.ResourceCPU:    resource.MustParse(ingressConfig.CPURequest),
+								corev1.ResourceMemory: resource.MustParse(ingressConfig.MemoryRequest),
 							},
 						},
 					}), 6))},

pkg/manifests/types.go

@@ -65,6 +65,8 @@ type NginxIngressConfig struct {
 	CustomHTTPErrors      string         // error codes passed to the configmap to configure nginx to send traffic with the specified headers to its defaultbackend service in case of error
 	MinReplicas           int32
 	MaxReplicas           int32
+	CPURequest             string         // CPU request for the Ingress Controller
+	MemoryRequest          string         // Memory request for the Ingress Controller
 	// TargetCPUUtilizationPercentage is the target average CPU utilization of the Ingress Controller
 	TargetCPUUtilizationPercentage int32
 }