[Kubernetes] Install Kubernetes using Kubekey(v3.0.7) on VirtualBox

script 다운로드

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curl -sfL https://get-kk.kubesphere.io | VERSION=v3.0.7 sh -

Binary Downloads

• https://github.com/kubesphere/kubekey/releases

Build Binary from Source Code

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git clone https://github.com/kubesphere/kubekey.git
cd kubekey
make kk

Quick Install Cluster

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./kk create cluster [--with-kubernetes versio] [--with-kubesphere version]

• Create a Kubernetes cluster with a specified version.

  1	./kk create cluster --with-kubernetes v1.24.1 --container-manager containerd

• Create a Kubernetes cluster with KubeSphere installed.

  1	./kk create cluster --with-kubesphere v3.2.1

Custom Install Cluster

세부 설정을 위한 Create Config

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./kk create config [--with-kubernetes version] [--with-kubesphere version] [(-f | --filename) path]

다른 파일 이름이나 다른 폴더에 있는 파일을 지정할 수도 있다.

1	./kk create config [--with-kubernetes version] [(-f | --file) path]

• Examples
  1	./kk create config --with-kubernetes v1.20.4

• 파일 작성

  1	vi config-sample.yaml

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  apiVersion: kubekey.kubesphere.io/v1alpha1 kind: Cluster metadata: name: sample spec: hosts: - {name: master, address: 192.168.0.1, internalAddress: 192.168.0.1, privateKeyPath: "~/.ssh/id_rsa"} - {name: master, address: 192.168.0.1, internalAddress: 192.168.0.1, user: root, password: Testing123} - {name: worker1, address: 192.168.0.2, internalAddress: 192.168.0.2, user: root, password: Testing123} - {name: worker2, address: 192.168.0.3, internalAddress: 192.168.0.3, user: root, password: Testing123} roleGroups: etcd: - master master: - master worker: - worker1 - worker2 controlPlaneEndpoint: domain: lb.kubesphere.local address: "" port: "6443" kubernetes: version: v1.17.9 imageRepo: kubesphere clusterName: cluster.local network: plugin: calico kubePodsCIDR: 10.233.64.0/18 kubeServiceCIDR: 10.233.0.0/18 registry: registryMirrors: [] insecureRegistries: [] addons: []

Install Cluster

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./kk create cluster -f config-sample.yaml

Cluster 설치하면서 log 확인

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kubectl logs -n kubesphere-system $(kubectl get pod -n kubesphere-system -l 'app in (ks-install, ks-installer)' -o jsonpath='{.items[0].metadata.name}') -f

Kubernetes 일반 유저 일 때

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mkdir -p $HOME/.kube
sudo cp -i /etc/kubernetes/admin.conf $HOME/.kube/config
sudo chown $(id -u):$(id -g) $HOME/.kube/config

만약 일반 계정에서 아래와 sudo 명령어 없이 kubectl 명령어 사용시 아래와 같은 오류가 발생하면

• [ERROR] error loading config file /etc/kubernetes/admin.conf: open /etc/kubernetes/admin.conf: permission denied
  • 아래 명령어를 입력하면 sudo 없이 사용 가능하다.
    1	export KUBECONFIG=$HOME/.kube/config

[ERROR] error making pod data directories: mkdir /var/lib/kubelet/pods/86cfe394-ba32-4a9f-ad65-1fb21f98a4ba: read-only file system

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chown -R kubelet:kubelet /var/lib/kubelet/pods chmod 750 /var/lib/kubelet/pods systemctl restart kubelet