使用minikube搭建k8s单节点集群

在国内不*，通过minikube快速搭建k8s单节点环境。

• 下载kubectl：

# curl -LO https://storage.googleapis.com/kubernetes-release/release/v1.16.0/bin/linux/amd64/kubectl

# mv kubectl /usr/local/bin/ && chmod +x /usr/local/bin/kubectl

# kubectl version

• 下载安装minikube：

# curl -LO https://storage.googleapis.com/minikube/releases/latest/minikube-1.5.2.rpm && sudo rpm -ivh minikube-1.5.2.rpm

# minikube config set vm-driver none

# minikube start

• 报错：

* Unable to pull images, which may be OK: running cmd: "/bin/bash -c \"sudo env PATH=/var/lib/minikube/binaries/v1.16.2:$PATH kubeadm config images pull --config /var/tmp/minikube/kubeadm.yaml\"": command failed: /bin/bash -c "sudo env PATH=/var/lib/minikube/binaries/v1.16.2:$PATH kubeadm config images pull --config /var/tmp/minikube/kubeadm.yaml"
stdout: 
stderr: failed to pull image "k8s.gcr.io/kube-apiserver:v1.16.2": output: Error response from daemon: Get https://k8s.gcr.io/v2/: net/http: request canceled while waiting for connection (Client.Timeout exceeded while awaiting headers)

解决报错：

# minikube start --registry-mirror=https://registry.docker-cn.com --image-repository=registry.cn-hangzhou.aliyuncs.com/google_containers

或

# minikube start --image-mirror-country=cn

两条命令都可以成功创建k8s单节点集群。

• 查看单节点集群信息：

# kubectl cluster-info
Kubernetes master is running at https://192.168.30.128:8443
KubeDNS is running at https://192.168.30.128:8443/api/v1/namespaces/kube-system/services/kube-dns:dns/proxy

To further debug and diagnose cluster problems, use 'kubectl cluster-info dump'.

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