When I first started to learn Kubernetes, I tries to figured out how to start quickly and with minimal efforts for bootstrap. At that time I did not find guides how to use K8s locally on own server or in VPS and not in SAAS.
So, the options to use K8s in simple way are:
- Install K8s modules (kubectl, apis, proxy, etc.) manually
- Minikube
- Kind
- Kubeadm
- Microk8s
Official guide of K8s tools options - https://kubernetes.io/docs/tasks/tools/
All options are good and have nice tooling, but today I will describe using microk8s (https://microk8s.io/). For me it was the simplest way to bootstrap the environment with app running in K8s.
Installation
I will describe use of K8s in Ubuntu OS, but it is easy to use it in most other OS you like.
The simplest way is to use SNAP:
Install microk8s
$ sudo snap install microk8s --classic --channel=1.24
Configure permissions:
sudo usermod -a -G microk8s $USER
sudo chown -f -R $USER ~/.kube
- Check for successful installation:
microk8s status --wait-ready
Addons
Microk8s has a nice ecosystem of addons that help to minimize manual configuration of APIs. Full list of add-ons:
https://microk8s.io/docs/addons#heading--list
We will use:
-
microk8s enable dns
- for communication with outer world -
microk8s enable dashboard
- for use of UI
That's it!
You can use usual kubectl commands:
microk8s kubectl get all
microk8s kubcectl get pods
Also, you can check, start and stop service:
- microk8s stop
- microk8s start
- microk8s status
Full list of commands: https://microk8s.io/docs/command-reference
Further I will write how to deploy Spring, Go or other apps in microk8s and VPS.
Thank you for reading!
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