Use nginx ingress controller helm specific version

[Adrien Touzouli]

Use ingress controller helm specific version https://github.com/kubernetes/ingress-nginx/releases
And configure Service to be of NodePort type

[Adrien Touzouli]

PR: #408

[Adrien Touzouli]

Before preprod merging :

kubectl delete namespace ingress-nginx
kubectl delete ClusterRole ingress-nginx
kubectl delete CLusterRoleBinding ingress-nginx
kubectl delete IngressClass nginx
kubectl delete ValidatingWebhookConfigurations ingress-nginx-admission