Ingress-nginx port confilct, can not start it.

[xieydd]

$ sudo k3s kubectl get pods --all-namespaces -w
NAMESPACE       NAME                                                    READY   STATUS             RESTARTS     AGE
gpu-operator    nvidia-dcgm-exporter-jlcr2                              0/1     PodInitializing    0            7m40s
kube-system     helm-install-ingress-nginx-gdkvn                        0/1     Completed          0            10m
gpu-operator    helm-install-nvidia-k8lb9                               0/1     Completed          0            10m
kube-system     helm-install-openmodelz-zvx4p                           0/1     Completed          0            10m
gpu-operator    nvidia-cuda-validator-mh4gm                             0/1     Completed          0            6m44s
openmodelz      autoscaler-86dd4b4cbc-zvp54                             1/1     Running            0            9m53s
gpu-operator    nvidia-node-feature-discovery-master-5644ff4465-7dm2r   1/1     Running            0            10m
openmodelz      agent-7bc8b5bd95-bpzng                                  1/1     Running            0            9m53s
gpu-operator    gpu-operator-86bdf64677-fmsxf                           1/1     Running            0            10m
kube-system     local-path-provisioner-957fdf8bc-xh56g                  1/1     Running            0            10m
gpu-operator    nvidia-operator-validator-242m2                         1/1     Running            0            7m40s
gpu-operator    nvidia-container-toolkit-daemonset-vz9tw                1/1     Running            0            7m40s
gpu-operator    nvidia-node-feature-discovery-worker-bm9b5              1/1     Running            0            10m
gpu-operator    nvidia-device-plugin-daemonset-b687n                    1/1     Running            0            7m40s
kube-system     coredns-77ccd57875-bjlq2                                1/1     Running            0            10m
openmodelz      ingress-operator-74dddd66cf-kj94c                       1/1     Running            0            9m53s
openmodelz      modelzetes-66b6f75568-2vl72                             1/1     Running            0            9m53s
gpu-operator    gpu-feature-discovery-wk462                             1/1     Running            0            7m40s
openmodelz      prometheus-854cc7cc8f-vbbmm                             1/1     Running            0            9m53s
kube-system     svclb-ingress-nginx-controller-aa8c61eb-v8q2c           2/2     Running            0            9m7s
kube-system     metrics-server-648b5df564-cltw4                         1/1     Running            0            10m
ingress-nginx   ingress-nginx-controller-jb2t8                          0/1     CrashLoopBackOff   9 (2m ago)   9m7s

$ sudo k3s kubectl logs  -n ingress-nginx   ingress-nginx-controller-jb2t8
-------------------------------------------------------------------------------
NGINX Ingress controller
  Release:       v1.8.0
  Build:         35f5082ee7f211555aaff431d7c4423c17f8ce9e
  Repository:    https://github.com/kubernetes/ingress-nginx
  nginx version: nginx/1.21.6

-------------------------------------------------------------------------------

F0812 01:01:22.513892       7 main.go:67] port 80 is already in use. Please check the flag --http-port

[gaocegege]

We may need to add a doc to illustrate the port requirements.

[xieydd]

We may need to add a doc to illustrate the port requirements.

Yes, we may need to make it configurable.