how to access local kubernetes minikube dashboard

Question

Kubernetes newbie (or rather basic networking) question: Installed single node minikube (0.23 release) on a ubuntu box running in my lan (on IP address 192.168.0.20) with virtualbox.

minikube start command completes successfully as well

minikube start
Starting local Kubernetes v1.8.0 cluster...
Starting VM...
Getting VM IP address...
Moving files into cluster...
Setting up certs...
Connecting to cluster...
Setting up kubeconfig...
Starting cluster components...
Kubectl is now configured to use the cluster.

minikube dashboard also comes up successfully. (running on 192.168.99.100:30000)

what i want to do is access minikube dashboard from my macbook (running on 192.168.0.11) in the same LAN.

Also I want to access the same minikube dashboard from the internet.

For LAN Access: Now from what i understand i am using virtualbox (the default vm option), i can change the networking type (to NAT with port forwarding) using vboxnet command

VBoxManage modifyvm "VM name" --natpf1 "guestssh,tcp,,2222,,22"

as listed here

In my case it will be something like this

VBoxManage modifyvm "VM name" --natpf1 "guesthttp,http,,30000,,8080"

Am i thinking along the right lines here?

Also for remotely accessing the same minikube dashboard address, i can setup a no-ip.com like service. They asked to install their utility on linux box and also setup port forwarding in the router settings which will port forward from host port to guest port. Is that about right? Am i missing something here?

Answer 1

The ssh way

Assuming that you have ssh on your ubuntu box.

First run kubectl proxy & to expose the dashboard on http://localhost:8001

Then expose the dashboard using ssh's port forwarding, executing:

ssh -R 30000:127.0.0.1:8001 $USER@192.168.0.20

Now you should access the dashboard from your macbook in your LAN pointing the browser to http://192.168.0.20:30000

To expose it from outside, just expose the port 30000 using no-ip.com, maybe change it to some standard port, like 80.

Note that isn't the simplest solution but in some places would work without having superuser rights ;) You can automate the login after restarts of the ubuntu box using a init script and setting public key for connection.