Support configurable hostPort in helm chart

apis/v1alpha2/nginxproxy_types.go

@@ -479,6 +479,11 @@ type ContainerSpec struct {
 	// +optional
 	Lifecycle *corev1.Lifecycle `json:"lifecycle,omitempty"`
 
+	// HostPort configuration
+	//
+	// +optional
+	HostPort *HostPort `json:"hostPort,omitempty"`
+
 	// VolumeMounts describe the mounting of Volumes within a container.
 	//
 	// +optional
@@ -608,3 +613,17 @@ type NodePort struct {
 	// kubebuilder:validation:Maximum=65535
 	ListenerPort int32 `json:"listenerPort"`
 }
+
+// HostPort to expose on the host.
+type HostPort struct {
+	// Whether to enable hostPort feature
+	// If not specified, or set to false, hostPort will not be enabled.
+	//
+	// +optional
+	Enable bool `json:"enable"`
+
+	// Number of port to expose on the host.
+	// kubebuilder:validation:Minimum=1
+	// kubebuilder:validation:Maximum=65535
+	Port int32 `json:"port"`
+}

charts/nginx-gateway-fabric/README.md

@@ -259,9 +259,12 @@ The following table lists the configurable parameters of the NGINX Gateway Fabri
 | `certGenerator.serverTLSSecretName` | The name of the Secret containing TLS CA, certificate, and key for the NGINX Gateway Fabric control plane to securely communicate with the NGINX Agent. Must exist in the same namespace that the NGINX Gateway Fabric control plane is running in (default namespace: nginx-gateway). | string | `"server-tls"` |
 | `clusterDomain` | The DNS cluster domain of your Kubernetes cluster. | string | `"cluster.local"` |
 | `gateways` | A list of Gateway objects. View https://gateway-api.sigs.k8s.io/reference/spec/#gateway for full Gateway reference. | list | `[]` |
-| `nginx` | The nginx section contains the configuration for all NGINX data plane deployments installed by the NGINX Gateway Fabric control plane. | object | `{"config":{},"container":{},"debug":false,"image":{"pullPolicy":"Always","repository":"ghcr.io/nginx/nginx-gateway-fabric/nginx","tag":"edge"},"imagePullSecret":"","imagePullSecrets":[],"kind":"deployment","plus":false,"pod":{},"replicas":1,"service":{"externalTrafficPolicy":"Local","loadBalancerClass":"","loadBalancerIP":"","loadBalancerSourceRanges":[],"nodePorts":[],"type":"LoadBalancer"},"usage":{"caSecretName":"","clientSSLSecretName":"","endpoint":"","resolver":"","secretName":"nplus-license","skipVerify":false}}` |
+| `nginx` | The nginx section contains the configuration for all NGINX data plane deployments installed by the NGINX Gateway Fabric control plane. | object | `{"config":{},"container":{"hostPort":{"enable":false,"port":443}},"debug":false,"image":{"pullPolicy":"Always","repository":"ghcr.io/nginx/nginx-gateway-fabric/nginx","tag":"edge"},"imagePullSecret":"","imagePullSecrets":[],"kind":"deployment","plus":false,"pod":{},"replicas":1,"service":{"externalTrafficPolicy":"Local","loadBalancerClass":"","loadBalancerIP":"","loadBalancerSourceRanges":[],"nodePorts":[],"type":"LoadBalancer"},"usage":{"caSecretName":"","clientSSLSecretName":"","endpoint":"","resolver":"","secretName":"nplus-license","skipVerify":false}}` |
 | `nginx.config` | The configuration for the data plane that is contained in the NginxProxy resource. This is applied globally to all Gateways managed by this instance of NGINX Gateway Fabric. | object | `{}` |
-| `nginx.container` | The container configuration for the NGINX container. This is applied globally to all Gateways managed by this instance of NGINX Gateway Fabric. | object | `{}` |
+| `nginx.container` | The container configuration for the NGINX container. This is applied globally to all Gateways managed by this instance of NGINX Gateway Fabric. | object | `{"hostPort":{"enable":false,"port":443}}` |
+| `nginx.container.hostPort` | The hostPort configuration | object | `{"enable":false,"port":443}` |
+| `nginx.container.hostPort.enable` | Enables hostPort. | bool | `false` |
+| `nginx.container.hostPort.port` | The port | int | `443` |
 | `nginx.debug` | Enable debugging for NGINX. Uses the nginx-debug binary. The NGINX error log level should be set to debug in the NginxProxy resource. | bool | `false` |
 | `nginx.image.repository` | The NGINX image to use. | string | `"ghcr.io/nginx/nginx-gateway-fabric/nginx"` |
 | `nginx.imagePullSecret` | The name of the secret containing docker registry credentials. Secret must exist in the same namespace as the helm release. The control plane will copy this secret into any namespace where NGINX is deployed. | string | `""` |

charts/nginx-gateway-fabric/values.schema.json

@@ -276,6 +276,32 @@
         },
         "container": {
           "description": "The container configuration for the NGINX container. This is applied globally to all Gateways managed by this\ninstance of NGINX Gateway Fabric.",
+          "properties": {
+            "hostPort": {
+              "description": "The hostPort configuration",
+              "properties": {
+                "enable": {
+                  "default": false,
+                  "description": "Enables hostPort.",
+                  "required": [],
+                  "title": "enable",
+                  "type": "boolean"
+                },
+                "port": {
+                  "default": 443,
+                  "description": "The port",
+                  "maximum": 65535,
+                  "minimum": 1,
+                  "required": [],
+                  "title": "port",
+                  "type": "integer"
+                }
+              },
+              "required": [],
+              "title": "hostPort",
+              "type": "object"
+            }
+          },
           "required": [],
           "title": "container",
           "type": "object"

charts/nginx-gateway-fabric/values.yaml

@@ -396,7 +396,21 @@ nginx:
 
   # -- The container configuration for the NGINX container. This is applied globally to all Gateways managed by this
   # instance of NGINX Gateway Fabric.
-  container: {}
+  container:
+
+    # -- The hostPort configuration
+    hostPort:
+      # -- Enables hostPort.
+      enable: false
+
+      # @schema
+      # type: integer
+      # minimum: 1
+      # maximum: 65535
+      # @schema
+      # -- The port
+      port: 443
+
     # -- The resource requirements of the NGINX container.
     # resources: {}
 

config/crd/bases/gateway.nginx.org_nginxproxies.yaml

@@ -337,6 +337,19 @@ spec:
                                   StopSignal can only be set for Pods with a non-empty .spec.os.name
                                 type: string
                             type: object
+                          hostPort:
+                            description: |-
+                              Number of port to expose on the host.
+                              If specified, this must be a valid port number, 0 < x < 65536.
+                            properties:
+                              enable:
+                                description: |-
+                                  Whether to enable hostPort
+                                type: boolean
+                              port:
+                                description: |-
+                                  Port number
+                                type: integer
                           resources:
                             description: Resources describes the compute resource
                               requirements.

deploy/crds.yaml

@@ -922,6 +922,19 @@ spec:
                                   StopSignal can only be set for Pods with a non-empty .spec.os.name
                                 type: string
                             type: object
+                          hostPort:
+                            description: |-
+                              Number of port to expose on the host.
+                              If specified, this must be a valid port number, 0 < x < 65536.
+                            properties:
+                              enable:
+                                description: |-
+                                  Whether to enable hostPort
+                                type: boolean
+                              port:
+                                description: |-
+                                  Port number
+                                type: integer
                           resources:
                             description: Resources describes the compute resource
                               requirements.

internal/controller/provisioner/objects.go

@@ -780,6 +780,11 @@ func (p *NginxProvisioner) buildNginxPodTemplateSpec(
 				container.Command = append(container.Command, "/agent/entrypoint.sh")
 				container.Args = append(container.Args, "debug")
 			}
+
+			if containerSpec.HostPort != nil && containerSpec.HostPort.Enable && len(container.Ports) > 0 {
+				container.Ports[0].HostPort = containerSpec.HostPort.Port
+			}
+
 			spec.Spec.Containers[0] = container
 		}
 	}

internal/controller/provisioner/objects_test.go

@@ -293,6 +293,7 @@ func TestBuildNginxResourceObjects_NginxProxyConfig(t *testing.T) {
 							corev1.ResourceCPU: resource.Quantity{Format: "100m"},
 						},
 					},
+					HostPort: &ngfAPIv1alpha2.HostPort{Enable: true, Port: int32(8443)},
 				},
 			},
 		},
@@ -338,6 +339,7 @@ func TestBuildNginxResourceObjects_NginxProxyConfig(t *testing.T) {
 	g.Expect(container.Ports).To(ContainElement(corev1.ContainerPort{
 		ContainerPort: 8080,
 		Name:          "metrics",
+		HostPort:      int32(8443),
 	}))
 
 	g.Expect(container.Image).To(Equal("nginx-repo:1.1.1"))