1. Lightweight Kubernetes

• Lightweight의 의미는 Kubernetes 구성요소들이 기본으로 사용되던 요소보다 가벼운 것으로 대체된 경우

• Kubernetes API server의 database인 etcd가 대체되곤 함

• 대표적으로 MicroK8s, K3s, Minikube 사용. 아래 그림은 각 lightweight Kubernetes의 비교사항

  

1-1. MicroK8s

1-2. Add-ons

2. Install MicroK8s

2-1. Install a cluster

2-2. Update a cluster

2-3. Uninstall a cluster

3. Adding a node

$ microk8s add-node

From the node you wish to join to this cluster, run the following:
microk8s join 192.168.0.2:25000/1d22bcb2216bc91fca70582b4899ff75/8b152156bf26

Use the '--worker' flag to join a node as a worker not running the control plane, eg:
microk8s join 192.168.0.2:25000/1d22bcb2216bc91fca70582b4899ff75/8b152156bf26 --worker

If the node you are adding is not reachable through the default interface you can use one of the following:
microk8s join 192.168.0.2:25000/1d22bcb2216bc91fca70582b4899ff75/8b152156bf26
microk8s join 192.168.0.18:25000/1d22bcb2216bc91fca70582b4899ff75/8b152156bf26
microk8s join 172.17.0.1:25000/1d22bcb2216bc91fca70582b4899ff75/8b152156bf26

References

• https://kubernetes.io/ko/docs/setup/production-environment/tools/_print/
• https://ichi.pro/ko/microk8slo-macose-kubeflow-seolchi-9503593190127
• https://microk8s.io/docs
• https://ubuntu.com/tutorials/install-a-local-kubernetes-with-microk8s?_ga=2.2161072.1019977689.1632838036-375383624.1632366687#1-overview
• https://www.cloudsavvyit.com/13024/how-to-run-your-own-kubernetes-cluster-with-microk8s/
• https://tech.kakao.com/2020/06/29/cgroup-driver/
• https://github.com/kubernetes/dashboard