kubectl apply -f ingress.yml

See also

• kind: Ingress, nginx.ingress.kubernetes.io, networking.k8s.io/[v1Beta,v1 ], extensions/v1beta1, ingress.spec.rules, kubectl apply -f ingress.yaml, spec.tls, ingressClassName
• kubectl apply, --server-side, -k, -f, creationTimestamp, kubectl.kubernetes.io/last-applied-configuration, --validate=false