Upgrade from 7.x to 8.x

This guide describes the steps to perform an upgrade of the component from version 7.x to 8.x.

Introduction

The helm chart v4.4.0 did introduce a change[github.com/kubernetes/ingress-nginx/commit/249780737c862a7cf690058511ee7126ddd0d788] of the election-id from ingress-controller-leader to ingress-nginx-leader. Changing the electionID might cause a ingress service interrupt until all NGINX Ingress components have been upgraded. During the upgrade the leader might not be choosen correctly.

With this release the support for Kubernetes 1.23 has been removed.

Step-by-step guide

  1. Before upgrading to the latest version, you can optionally add following config to preserve the original electionID naming:

    parameters:
  ingress_nginx:
    helm_values:
      controller:
        electionID: ingress-controller-leader
    Not preserving the electionID might cause a downtime on the ingress path!