Kubernetes - NginxIngressController resources not creating

Question

We are using Nginx ingress operator version 0.2.0 and the controller version 1.11.1. Following steps are completed to deploy the CRD and operator. https://github.com/nginxinc/nginx-ingress-operator/blob/release-0.2.0/docs/manual-installation.md

After that, we are deploying the controller using the following yaml:

apiVersion: k8s.nginx.org/v1alpha1
kind: NginxIngressController
metadata:
  name: nginx-ingress-controller
  namespace: ingress-nginx
spec:
  type: deployment
  image:
    repository: nginx/nginx-ingress
    tag: 1.11.1
    pullPolicy: Always
  serviceType: NodePort
  nginxPlus: False

The manifest gets applied successfully but none of the required resources are getting created (deployment and service). Hence, the ingress is not getting the address.

kubectl get all -n ingress-nginx
No resources found in ingress-nginx namespace.

kubectl get ing
NAME              CLASS    HOSTS   ADDRESS   PORTS   AGE
my-ingress        <none>   *                 80      6h23m

kubeadm, kubelet & kubectl version 1.21.2.

Earlier we had deployed it on minikube and it was working fine.

Answer 1

I have reproduced the use case using Nginx ingress operator version 0.4.0 and the controller version 2.0.x by following the documentation and successfully created the Nginx Ingress Operator and NginxIngressController. Firstly, I didn't create the namespace ingress-nginx,While running the command kubectl get all -n ingress-nginx. I was getting the error No resources found in ingress-nginx namespace.

After creating the required namespace by running the command kubectl create namespace ingress-nginx , I am able to get the resources(pod,service,deployment,replica set) successfully.

Can you try again by changing the nginx controller and operator versions to the latest one and also check the configurations correctly.