Fix enableCRDs to be optional

* Remove enableCRDs from min examples
* Document default value

deploy/crds/k8s.nginx.org_nginxingresscontrollers_crd.yaml

@@ -59,7 +59,7 @@ spec:
               type: string
             enableCRDs:
               description: Enables the use of NGINX Ingress Resource Definitions (VirtualServer
-                and VirtualServerRoute).
+                and VirtualServerRoute). Default is true.
               type: boolean
             enableLatencyMetrics:
               description: Bucketed response times from when NGINX establishes a connection
@@ -261,7 +261,6 @@ spec:
                 API, the Ingress Controller will fail to start. Format is namespace/name.
               type: string
           required:
-          - enableCRDs
           - image
           - serviceType
           - type

docs/nginx-ingress-controller.md

@@ -83,7 +83,7 @@ spec:
 | `replicas` | `int` | The number of replicas of the Ingress Controller pod. The default is 1. Only applies if the `type` is set to deployment. | No |
 | `defaultSecret` | `string` | The TLS Secret for TLS termination of the default server. The format is namespace/name. The secret must be of the type kubernetes.io/tls. If not specified, the operator will generate and deploy a TLS Secret with a self-signed certificate and key. | No |
 | `serviceType` | `string` | The type of the Service for the Ingress Controller. Valid Service types are `NodePort` or `LoadBalancer`. | Yes |
-| `enableCRDs` | `boolean` | Enables the use of NGINX Ingress Resource Definitions (VirtualServer and VirtualServerRoute). | No |
+| `enableCRDs` | `boolean` | Enables the use of NGINX Ingress Resource Definitions (VirtualServer and VirtualServerRoute). Default is `true`. | No |
 | `enableSnippets` | `boolean` | Enable custom NGINX configuration snippets in VirtualServer and VirtualServerRoute resources. Requires `enableCRDs` set to `true`. | No |
 | `enablePreviewPolicies` | `boolean` | Enables preview policies. Requires `enableCRDs` set to `true`. | No |
 | `ingressClass` | `string` | A class of the Ingress controller. For Kubernetes >= 1.18, the Ingress controller only processes resources that belong to its class - i.e. have the "ingressClassName" field resource equal to the class. Additionally the Ingress Controller processes all the VirtualServer/VirtualServerRoute resources that do not have the "ingressClassName" field. For Kubernetes < 1.18, the Ingress Controller only processes resources that belong to its class - i.e have the annotation "kubernetes.io/ingress.class" (for Ingress resources) or field "ingressClassName" (for VirtualServer/VirtualServerRoute resources) equal to the class. Additionally, the Ingress Controller processes resources that do not have the class set, which can be disabled by setting `useIngressClassOnly` to `true`. Default is `nginx`. | No |

examples/deployment-oss-min/nginx-ingress-controller.yaml

@@ -12,4 +12,3 @@ spec:
     pullPolicy: Always
   replicas: 1
   serviceType: NodePort
-  enableCRDs: true

examples/deployment-plus-min/nginx-ingress-controller.yaml

@@ -12,5 +12,4 @@ spec:
     pullPolicy: IfNotPresent
   replicas: 1
   serviceType: NodePort
-  enableCRDs: true
   ingressClass: nginx

pkg/apis/k8s/v1alpha1/nginxingresscontroller_types.go

@@ -32,7 +32,8 @@ type NginxIngressControllerSpec struct {
 	// +kubebuilder:validation:Enum=NodePort;LoadBalancer
 	// +operator-sdk:gen-csv:customresourcedefinitions.specDescriptors=true
 	ServiceType string `json:"serviceType"`
-	// Enables the use of NGINX Ingress Resource Definitions (VirtualServer and VirtualServerRoute).
+	// Enables the use of NGINX Ingress Resource Definitions (VirtualServer and VirtualServerRoute). Default is true.
+	// +kubebuilder:validation:Optional
 	// +operator-sdk:gen-csv:customresourcedefinitions.specDescriptors=true
 	EnableCRDs bool `json:"enableCRDs"`
 	// Enable custom NGINX configuration snippets in VirtualServer and VirtualServerRoute resources.