NGINX Ingress Controller 1.4.1

CHANGES:

• Update NGINX version to 1.15.7.

UPGRADE:

• For NGINX, use the 1.4.1 image from our DockerHub: nginx/nginx-ingress:1.4.1 or nginx/nginx-ingress:1.4.1-alpine
• For NGINX Plus, please build your own image using the 1.4.1 source code.

RESOURCES:

• Documentation -- https://github.com/nginxinc/kubernetes-ingress/tree/v1.4.1/docs
• Configuration examples -- https://github.com/nginxinc/kubernetes-ingress/tree/v1.4.1/examples