Add kfwd command

[alexellis]

Signed-off-by: Alex Ellis (OpenFaaS Ltd) [email protected]

Description

Add kfwd command

Makes the kubectl port-forward easier for minikube, KinD and k3d.

How Has This Been Tested?

Tested in this video between a local k3d cluster and my helm chart for the expressjs-k8s web server https://youtu.be/Suubz0f0p3c

curl https://raw.githubusercontent.com/helm/helm/master/scripts/get-helm-3 | bash

helm repo add expressjs-k8s https://alexellis.github.io/expressjs-k8s/
helm repo update
helm install test-app expressjs-k8s/expressjs-k8s

Replace 192.168.0.14 with the ip found in ifconfig or your network settings. Use your ethernet or WiFi adapter IP.

inletsctl kfwd --from test-app-expressjs-k8s:8080 --if 192.168.0.14

Now access the service on: http://192.168.0.14:8080

Before:

This greatly simplifies my micro-tutorial for KinD -> https://gist.github.com/alexellis/c29dd9f1e1326618f723970185195963

Compare and contrast ☝️

After:

https://github.com/inlets/inlets/blob/master/docs/kubernetes.md#try-inlets-with-kind-kubernetes-in-docker

How are existing users impacted? What migration steps/scripts do we need?

N/a

[alexellis]

inlets PRO support is still pending, but I think it will be relatively easy to add #13 - then you can get pure TCP traffic like databases etc.