需求
安裝kubernetes - Minikube本地環境
准備條件
- 一台VPS（本文使用阿里雲香港 - centos7.7）- 用國內的服務器折騰的好一會兒都被牆了，先不把時間浪費在這，直接上香港的服務器
- 一台能SSH連接到VPS的本地電腦 （推薦連接工具xshell）
安裝步驟
在安裝前需要配置國內的鏡像源
cat <<EOF > /etc/yum.repos.d/kubernetes.repo
[kubernetes]
name=Kubernetes
baseurl=https://mirrors.aliyun.com/kubernetes/yum/repos/kubernetes-el7-x86_64/
enabled=1
gpgcheck=1
repo_gpgcheck=1
gpgkey=https://mirrors.aliyun.com/kubernetes/yum/doc/yum-key.gpg https://mirrors.aliyun.com/kubernetes/yum/doc/rpm-package-key.gpg
EOF
安裝kubectl
yum install -y kubectl
shell 中開啟 kubectl 命令自動補全
yum install bash-completion -y
echo "source <(kubectl completion bash)" >> ~/.bashrc
安裝minukube
curl -Lo minikube https://storage.googleapis.com/minikube/releases/latest/minikube-linux-amd64 \
&& chmod +x minikube
mkdir -p /usr/local/bin/
install minikube /usr/local/bin/
su - docker
啟動本地 Kubernetes 集群、 檢查集群的狀態
minikube start
* minikube v1.9.2 on Centos 7.7.1908
* Automatically selected the docker driver
* Starting control plane node m01 in cluster minikube
* Pulling base image ...
* Downloading Kubernetes v1.18.0 preload ...
> preloaded-images-k8s-v2-v1.18.0-docker-overlay2-amd64.tar.lz4: 542.91 MiB
* Creating Kubernetes in docker container with (CPUs=2) (4 available), Memory=2200MB (7821MB available) ...
* Preparing Kubernetes v1.18.0 on Docker 19.03.2 ...
- kubeadm.pod-network-cidr=10.244.0.0/16
* Enabling addons: default-storageclass, storage-provisioner
! Enabling 'default-storageclass' returned an error: running callbacks: [chmod: chmod deploy/addons/storageclass/storageclass.yaml.tmpl: permission denied]
* Done! kubectl is now configured to use "minikube"
minikube status
m01
host: Running
kubelet: Running
apiserver: Running
kubeconfig: Configured
kubectl cluster-info
Kubernetes master is running at https://172.17.0.2:8443
KubeDNS is running at https://172.17.0.2:8443/api/v1/namespaces/kube-system/services/kube-dns:dns/proxy
To further debug and diagnose cluster problems, use 'kubectl cluster-info dump'.
開啟Kubernetes dashboard服務
minikube dashboard --url
* Enabling dashboard ...
* Verifying dashboard health ...
* Launching proxy ...
* Verifying proxy health ...
http://127.0.0.1:33457/api/v1/namespaces/kubernetes-dashboard/services/http:kubernetes-dashboard:/proxy/
開啟kube-proxy端口映射，使其可以遠程訪問
kubectl proxy --port=33458 --address='0.0.0.0' --accept-hosts='^.*' &
這里需要記得去阿里雲的安全組配置33458端口外網可以訪問
然后就可以在瀏覽器訪問k8s的dashborad了
清理 minikube 的本地狀態
minikube delete
參考文獻
https://juejin.im/post/5b8a4536e51d4538c545645c
https://kubernetes.io/zh/docs/tasks/tools/install-minikube/