GitHub minikube
Kubernetes目前最高支持Docker版本17.03
Minikube是什么？
Minikube是一种方便在本地运行Kubernetes的工具.
Minikube 是可以在VM中运行单节点的Kubernetes集群.
Minikube是为了开发或测试在本地启动一个节点的kubernetes集群.
特点
不能启动生产集群，没有高可用性的单节点机器.
可以工作在Windows,Linux,MacOS下.
先决条件
需要安装VirtualBox和Minikube
安装Minikube
- 安装minikube
$curl -Lo minikube https://storage.googleapis.com/minikube/releases/latest/minikube-linux-amd64 && chmod +x minikube && sudo mv minikube /usr/local/bin/
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
100 82.3M 100 82.3M 0 0 4295k 0 0:00:19 0:00:19 --:--:-- 4896k- 安装kubectl
$curl -Lo kubectl https://storage.googleapis.com/kubernetes-release/release/$(curl -s https://storage.googleapis.com/kubernetes-release/release/stable.txt)/bin/linux/amd64/kubectl && chmod +x kubectl
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
100 68.9M 100 68.9M 0 0 4756k 0 0:00:14 0:00:14 --:--:-- 5385k
$ sudo mv kubectl /usr/local/bin/- 配置信息
$ export MINIKUBE_WANTUPDATENOTIFICATION=false
$ export MINIKUBE_WANTREPORTERRORPROMPT=false
$ export MINIKUBE_HOME=$HOME
$ export CHANGE_MINIKUBE_NONE_USER=true
$ mkdir $HOME/.kube || true
$ touch $HOME/.kube/config
$ export KUBECONFIG=$HOME/.kube/config
启动Minikube
$ minikube start --vm-driver=virtualbox
Starting local Kubernetes v1.7.0 cluster...
Starting VM...
Downloading Minikube ISO
97.80 MB / 97.80 MB [==============================================] 100.00% 0s
Getting VM IP address...
Moving files into cluster...
Setting up certs...
Starting cluster components...
Connecting to cluster...
Setting up kubeconfig...
Kubectl is now configured to use the cluster.
$ kubectl get nodes
NAME STATUS AGE VERSION
minikube Ready 5s v1.7.0
$ kubectl get pods --all-namespaces
NAMESPACE NAME READY STATUS RESTARTS AGE
kube-system kube-addon-manager-minikube 1/1 Running 0 2h
kube-system kube-dns-910330662-pkvj6 3/3 Running 0 2h
kube-system kubernetes-dashboard-mg5jt 1/1 Running 0 2h
如果minikube启动提示没有找到VboxManage，可以参考Github上的方法：
此参数告诉Kubernetes组件运行在主机上，而非VM虚拟机上。
如果运行在VM上，Docker只需要VM的驱动程序，而非管理程序。使用主机模式，请确保Docker的网络连接模拟为桥接（bridge network）。
$ minikube start --vm-driver=none
卸载Docker高版本
1、查看已安装的Docker版本
$ yum list installed | grep docker
2、卸载已安装的Docker版本
yum -y remove docker-ce.x86_64
3、查看Docker版本
yum list docker-ce.x86_64 --showduplicates |sort -r
docker-ce.x86_64 18.05.0.ce-3.el7.centos docker-ce-edge docker-ce.x86_64 18.04.0.ce-3.el7.centos docker-ce-edge docker-ce.x86_64 18.03.1.ce-1.el7.centos docker-ce-stable docker-ce.x86_64 18.03.1.ce-1.el7.centos docker-ce-edge docker-ce.x86_64 18.03.0.ce-1.el7.centos docker-ce-stable docker-ce.x86_64 18.03.0.ce-1.el7.centos docker-ce-edge docker-ce.x86_64 18.02.0.ce-1.el7.centos docker-ce-edge docker-ce.x86_64 18.01.0.ce-1.el7.centos docker-ce-edge docker-ce.x86_64 17.12.1.ce-1.el7.centos docker-ce-stable docker-ce.x86_64 17.12.1.ce-1.el7.centos docker-ce-edge docker-ce.x86_64 17.12.0.ce-1.el7.centos docker-ce-stable docker-ce.x86_64 17.12.0.ce-1.el7.centos docker-ce-edge docker-ce.x86_64 17.11.0.ce-1.el7.centos docker-ce-edge docker-ce.x86_64 17.10.0.ce-1.el7.centos docker-ce-edge docker-ce.x86_64 17.09.1.ce-1.el7.centos docker-ce-stable docker-ce.x86_64 17.09.1.ce-1.el7.centos docker-ce-edge docker-ce.x86_64 17.09.0.ce-1.el7.centos docker-ce-stable docker-ce.x86_64 17.09.0.ce-1.el7.centos docker-ce-edge docker-ce.x86_64 17.07.0.ce-1.el7.centos docker-ce-edge docker-ce.x86_64 17.06.2.ce-1.el7.centos docker-ce-stable docker-ce.x86_64 17.06.2.ce-1.el7.centos docker-ce-edge docker-ce.x86_64 17.06.1.ce-1.el7.centos docker-ce-stable docker-ce.x86_64 17.06.1.ce-1.el7.centos docker-ce-edge docker-ce.x86_64 17.06.0.ce-1.el7.centos docker-ce-stable docker-ce.x86_64 17.06.0.ce-1.el7.centos docker-ce-edge docker-ce.x86_64 17.05.0.ce-1.el7.centos docker-ce-edge docker-ce.x86_64 17.04.0.ce-1.el7.centos docker-ce-edge docker-ce.x86_64 17.03.2.ce-1.el7.centos docker-ce-stable docker-ce.x86_64 17.03.1.ce-1.el7.centos docker-ce-stable docker-ce.x86_64 17.03.0.ce-1.el7.centos docker-ce-stable
4、安装Docker 17.03.0.ce
yum install -y docker-ce-selinux-17.03.0.ce-1.el7.centos.noarch