Add option to configure class as the default class
Add option to disable wathcing for ingresses without class
Remove redundant if that always evaluates to true
Fix default value missing for ingress_nginx_default
* This release removes support for Kubernetes v1.19.0
* This release adds support for Kubernetes v1.24.0
* Starting with this release, we will need permissions on the coordination.k8s.io/leases resource for leaderelection lock
ingress-nginx 0.16.2 (https://github.com/kubernetes/ingress-nginx/releases/tag/nginx-0.16.2)
This patch simplify ingress-nginx deployment by default deploy on
master, with customizable options; on the other hand, remove the
additional Ansible group "kube-ingress" and its k8s node label
injection.
Reference to https://kubernetes.io/docs/concepts/services-networking/ingress/#prerequisites:
GCE/Google Kubernetes Engine deploys an ingress controller on the master.
By changing `ingress_nginx_nodeselector` plus custom k8s node
label, user could customize the DaemonSet deployment target.
If `ingress_nginx_nodeselector` is empty, will deploy DaemonSet on
every k8s node.