Upgrade NGINX Ingress Controller

[gothub]

The current version is 4.0.17.

todo:

• [x] Upgrade on k8s dev
• [x] verify that all apps are reachable via public URL
  • [x] https://stage.gnis-ld.org/
  • [x] https://api.test.dataone.org/polder/
  • [x] https://api.test.dataone.org/quality
  • [x] https://api.test.dataone.org/slinky
  • [ ] https://api.test.dataone.org/purser
• [x] upgrade on production k8s
• [ ] verify that all apps are reachable via public URL
  • [x] https://gnis-ld.org/
  • [x] https://api.dataone.org/slinky
  • [x] https://api.dataone.org/quality

[gothub]

Currently on dev:

helm list -n ingress-nginx
NAME            NAMESPACE       REVISION    UPDATED                                 STATUS      CHART                   APP VERSION
ingress-nginx   ingress-nginx   1           2022-02-09 10:28:12.22761881 -0800 PST  deployed    ingress-nginx-4.0.17    1.1.1

... prod version is older:

helm list -n ingress-nginx
NAME            NAMESPACE       REVISION    UPDATED                                 STATUS      CHART               APP VERSION
ingress-nginx   ingress-nginx   1           2021-12-28 17:01:35.768277057 -0800 PST deployed    ingress-nginx-4.0.6 1.0.4

(from https://kubernetes.github.io/ingress-nginx/deploy/upgrade):

This upgrade should be able to be performed with

https://kubernetes.github.io/ingress-nginx/deploy/upgrade/

Note that this might cause cert-manager to reissue certs, which might cause service disruption.