Only the nginx image is meant to be published Other images are used as examples for a feature of the ingress controller or to run e2e tests

Directory	Purpose
cfssl	Image to run cfssl commands
custom-error-pages	Example of Custom error pages for the Ingress-Nginx Controller
fastcgi-helloserver	FastCGI application for e2e tests
go-grpc-greeter-server	grpc server application for the nginx-ingress grpc example
httpbun	A simple HTTP Request & Response Service for e2e tests
nginx	NGINX base image using alpine linux
test-runner	Image to run e2e tests