service: --format only outputs URLs, --https erroneously substitutes occurrences of http

[doodlesbykumbi]

BUG REPORT

Environment:

Minikube version (use minikube version): v0.28.2

• OS (e.g. from /etc/os-release): OSX

What happened:

1. Created a Service

kubectl run echoserver --image=gcr.io/google_containers/echoserver:1.4 --port=8080
kubectl expose deployment echoserver --type=NodePort

2. Used minikube service --format ... to generate a few variations of a formatted string

$ minikube service echoserver --format "{{.IP}}:{{.Port}}" --url
Error opening service: Check that minikube is running and that you have specified the correct namespace: parse 192.168.99.100:30563: first path segment in URL cannot contain colon
$ minikube service echoserver --format "http{{.IP}}:{{.Port}}" --url --https
https192.168.99.100:30563
$ minikube service echoserver --format "http.myservice:{{.Port}}" --url --https
https.myservice:30563

• an error when the formatted string is not a URL
• https is erroneously substituted when the prefix http was not part of the URL scheme

What you expected to happen:

• formatted string can take any form I please
• https should only be substituted when the URL scheme is http

$ minikube service echoserver --format "{{.IP}}:{{.Port}}" --url
192.168.99.100:30563
$ minikube service echoserver --format "http{{.IP}}:{{.Port}}" --url --https
http192.168.99.100:30563
$ minikube service echoserver --format "http.myservice:{{.Port}}" --url --https
http.myservice:30563

How to reproduce it (as minimally and precisely as possible):

See Above :)