通過minikube部署kubernetes
需要本地驗證部署一下knative，需要一個集羣，所以先部署一個minikube。記錄如下：
0.環境準備
安裝一個VM VirtualBox 6.0.4版本。
1.安裝Docker
自己的機器安裝的是Linux Mint 18.3（ubuntu1604）。直接檢查一下Docker等的安裝情況。
$ docker --version
Docker version 18.09.4, build d14af54
如果沒裝，可以安裝：sudo apt-get install docker.io
在修改一下倉庫地址，避免到國外去下載，現在國內的鏡像倉庫也很多了。
# cat /etc/docker/daemon.json
{
"registry-mirrors": ["https://docker.mirrors.ustc.edu.cn"]
}
重啓生效
sudo /etc/init.d/docker restart
2.安裝kubectl
直接下一個編譯好的包（https://github.com/kubernetes/kubernetes/releases）解壓放入/usr/local/bin目錄。
$ ll /usr/local/bin/kubectl
-rwxr-xr-x 1 root root 43103040 Mar 28 17:54 /usr/local/bin/kubectl*
3.安裝minikube
發現阿里的minikube版本，應該是直接指向國內的庫了，所以避免了網絡牆的問題，直接去https://github.com/AliyunContainerService/minikube下載，並放入/usr/local/bin目錄。
$ ll /usr/local/bin/minikube
-rwxr-xr-x 1 root root 40095660 Mar 28 17:53 /usr/local/bin/minikube*
啓動、啓動dashboard、停止等，虛擬機的數據等都存儲在~/.minikube目錄下。
minikube start --registry-mirror=https://registry.docker-cn.com
minikube dashboard
minikube stop
啓動的時候提示如下：
$ minikube start --registry-mirror=https://registry.docker-cn.com
There is a newer version of minikube available (v1.0.0). Download it here:
https://github.com/kubernetes/minikube/releases/tag/v1.0.0
To disable this notification, run the following:
minikube config set WantUpdateNotification false
o minikube v0.35.0 on linux (amd64)
i Tip: Use 'minikube start -p <name>' to create a new cluster, or 'minikube delete' to delete this one.
: Restarting existing virtualbox VM for "minikube" ...
: Waiting for SSH access ...
- "minikube" IP address is 192.168.99.103
- Configuring Docker as the container runtime ...
- Preparing Kubernetes environment ...
- Pulling images required by Kubernetes v1.13.4 ...
: Relaunching Kubernetes v1.13.4 using kubeadm ...
: Waiting for pods: apiserver proxy etcd scheduler controller addon-manager dns
: Updating kube-proxy configuration ...
- Verifying component health ......
+ kubectl is now configured to use "minikube"
= Done! Thank you for using minikube!
啓動後就可以使用kubectl來操作集羣了。
$ kubectl get all
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
service/kubernetes ClusterIP 10.96.0.1 <none> 443/TCP 12d
$ kubectl get nodes
NAME STATUS ROLES AGE VERSION
minikube Ready master 12d v1.13.4