eShopOnContainers/deploy/k8s/nginx-ingress/local-cm.yaml

apiVersion: v1
kind: ConfigMap
metadata:
  labels:
    app.kubernetes.io/name: ingress-nginx
    app.kubernetes.io/part-of: ingress-nginx
  name: nginx-configuration
  namespace: ingress-nginx
data:
  proxy-buffer-size: "128k"
  proxy-buffers: "4 256k"
  large-client-header-buffers: "4 16k"
##https://stackoverflow.com/questions/59274805/kubernetes-nginx-ingress-request-header-or-cookie-too-large