K8S micro lab

Eran Goldman-Malka · April 22, 2022

How I installed K8s on old Laptop.

I found Acer E15, which is a decent laptop, in the recycling center and decided to turn it into my K8s lab.

It’s not an instruction how to do it, but a log of how I did it.

It’s not a secure installation ! Don’t use it on production

If you have any questions regarding what I did here, feel free to contact me.

  1. Install Xubuntu
  2. Solve the wifi problem 
    sudo apt install bcmwl-kernel-source linux-firmware
sudo reboot
  3. Keeping the laptop running after I close the screen 
    sudo vim /etc/systemd/logind.conf

    HandleLidSwitch=ignore
LidSwitchIgnoreInhibited=no

    sudo service systemd-logind restart
  4. Install K8s
  5. Fix the DNS pending error 
     kubectl apply -f "https://cloud.weave.works/k8s/net?k8s-version=$(kubectl version | base64 | tr -d '\n')"
  6. Install Dashboard 
    kubectl apply -f https://raw.githubusercontent.com/kubernetes/dashboard/v2.5.0/aio/deploy/recommended.yaml
  7. Install nginx as reverse proxy to the dashboard + https
  8. curl http://localhost:8001
curl: (7) Failed to connect to localhost port 8001: Connection refused

    -> restart

  9. kubectl get pods --all-namespaces
The connection to the server 192.168.1.112:6443 was refused - did you specify the right host or port?

    ->

    sudo -i
swapoff -a
exit
strace -eopenat kubectl version
  10. Open the dashboard

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