参考的网址：https://puhaiyang.blog.csdn.net/article/details/107082958
在安装好了centos后，再进行如下的操作
关闭防火墙
systemctl stop firewalld && systemctl disable firewalld
关闭虚拟内存
swapoff -a
1、安装docker
# step 1: 安装必要的一些系统工具
sudo yum install -y yum-utils device-mapper-persistent-data lvm2
# Step 2: 添加软件源信息
sudo yum-config-manager --add-repo http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo
# Step 3: 更新并安装 Docker-CE
sudo yum makecache fast
sudo yum -y install docker-ce
# Step 4: 开启Docker服务
sudo service docker start
2、安装kubectl
先用浏览器访问 https://storage.googleapis.com/kubernetes-release/release/stable.txt
这个地址，就会显示最新稳定版的版本号。这里的得到的是v1.15.1
使用那个版本号下载kubectl：
wget "https://storage.googleapis.com/kubernetes-release/release/v1.15.1/bin/linux/amd64/kubectl" -O "/usr/local/bin/kubectl"
或者你还是借助浏览器下载直接访问https://storage.googleapis.com/kubernetes-release/release/v1.15.1/bin/linux/amd64/kubectl这个地址，
在虚拟机好像覆盖不了，一般都是直接浏览器下载的。
cp kubectl /usr/local/bin/
chmod +x /usr/local/bin/kubectl
3、安装minikube
minikube官网地址：https://minikube.sigs.k8s.io/docs/start/
安装前提：
1) 2个或更多CPU
2) 2GB的可用内存
3) 20GB的可用磁盘空间
4) 网络连接
5) 容器或虚拟机管理器，例如：Docker，Hyperkit，Hyper-V，KVM，Parallels，Podman，VirtualBox或VMWare
为了方便快捷采用官方文档中的Install Minikube via direct download方法来安装
curl -Lo minikube https://storage.googleapis.com/minikube/releases/latest/minikube-linux-amd64 && chmod +x minikube
然后执行下面的两个命令
sudo mkdir -p /usr/local/bin/
sudo install minikube /usr/local/bin/
最后启动minikube就可以啦。
在国内可以用阿里云的镜像来启动minikube
minikube start --image-repository=registry.cn-hangzhou.aliyuncs.com/google_containers --driver=none --memory=8192
上述minikube启动命令中的--memory=8192是指定minikube的内存，最小2048，按实际情况修改。不加好像启动报错。
如果启动过程中有提示：
X Sorry, Kubernetes v1.18.0 requires conntrack to be installed in root’s path
那么先把conntrack安装一下:
yum install conntrack
然后再次运行上面那个minikube start的命令以启动minikube。注意：服务器要2核。
[root@localhost ~]# minikube start --image-repository=registry.cn-hangzhou.aliyuncs.com/google_containers --driver=none * minikube v1.11.0 on Centos 7.7.1908 * Using the none driver based on existing profile * Starting control plane node minikube in cluster minikube * Restarting existing none bare metal machine for "minikube" ... * OS release is CentOS Linux 7 (Core) * Preparing Kubernetes v1.18.3 on Docker 18.06.3-ce ... * Configuring local host environment ... * ! The ‘none‘ driver is designed for experts who need to integrate with an existing VM * Most users should use the newer ‘docker‘ driver instead, which does not require root! * For more information, see: https://minikube.sigs.k8s.io/docs/reference/drivers/none/ * ! kubectl and minikube configuration will be stored in /root ! To use kubectl or minikube commands as your own user, you may need to relocate them. For example, to overwrite your own settings, run: * - sudo mv /root/.kube /root/.minikube $HOME - sudo chown -R $USER $HOME/.kube $HOME/.minikube * * This can also be done automatically by setting the env var CHANGE_MINIKUBE_NONE_USER=true * Verifying Kubernetes components... * Enabled addons: default-storageclass, storage-provisioner * Done! kubectl is now configured to use "minikube" [root@localhost ~]#
安装好minikube后验证一下：
[root@localhost ~]# kubectl get nodes NAME STATUS ROLES AGE VERSION localhost.localdomain Ready master 2m7s v1.18.3 [root@localhost ~]# kubectl get pods -A NAMESPACE NAME READY STATUS RESTARTS AGE kube-system coredns-546565776c-2hmw6 1/1 Running 0 2m12s kube-system coredns-546565776c-vm788 1/1 Running 0 2m12s kube-system etcd-localhost.localdomain 1/1 Running 0 2m14s kube-system kube-apiserver-localhost.localdomain 1/1 Running 0 2m14s kube-system kube-controller-manager-localhost.localdomain 1/1 Running 0 2m14s kube-system kube-proxy-jb6ls 1/1 Running 0 2m12s kube-system kube-scheduler-localhost.localdomain 1/1 Running 0 2m14s kube-system storage-provisioner 1/1 Running 0 2m18s [root@localhost ~]# kubectl get svc -A NAMESPACE NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE default kubernetes ClusterIP 10.96.0.1 <none> 443/TCP 2m32s kube-system kube-dns ClusterIP 10.96.0.10 <none> 53/UDP,53/TCP,9153/TCP 2m31s [root@localhost ~]#
kubectl get nodes
[root@kube20 yaml]# kubectl get node NAME STATUS ROLES AGE VERSION minikube Ready master 8d v1.15.0 [root@kube20 yaml]#
1、安装kubectl
kubectl安装方法的参考官网链接：
https://kubernetes.io/docs/tasks/tools/install-kubectl/
下载kubectl：
https://storage.googleapis.com/kubernetes-release/release/v1.18.0/bin/windows/amd64/kubectl.exe
将kubectl.exe复制到某一目录并配置环境变量,如我这里是将它放到c盘下的Program Files目录的
C:\Program Files\k8s\kubectl.exe
再将C:\Program Files\k8s添加到系统的path就ok了
输入命令测试一下
C:\Users\DELL>kubectl version --client
Client Version: version.Info{Major:"1", Minor:"18", GitVersion:"v1.18.0", GitCommit:"9e991415386e4cf155a24b1da15becaa390438d8", GitTreeState:"clean", BuildDate:"2020-03-25T14:58:59Z", GoVersion:"go1.13.8", Compiler:"gc", Platform:"windows/amd64"}
2、拷贝kube-config
拷贝minikube虚拟机上的/root/.kube 目录下的kube-config文件到windows中当前用户目录的 .kube目录下。
可以将文件打开，将内容复制过去。
[root@localhost .kube]# pwd
/root/.kube
[root@localhost .kube]# ll
total 12
drwxr-x---. 3 root root 23 Jul 1 22:56 cache
-rw-------. 1 root root 440 Jul 1 22:56 config
drwxr-x---. 3 root root 4096 Jul 1 23:08 http-cache
[root@localhost .kube]# cat config
apiVersion: v1
clusters:
- cluster:
certificate-authority: /root/.minikube/ca.crt
server: https://192.168.113.148:8443
name: minikube
contexts:
- context:
cluster: minikube
user: minikube
name: minikube
current-context: minikube
kind: Config
preferences: {}
users:
- name: minikube
user:
client-certificate: /root/.minikube/profiles/minikube/client.crt
client-key: /root/.minikube/profiles/minikube/client.key
[root@localhost .kube]#
将crt与key也复制到windows下，文件路径按config中地址找。 最终我这边的kube-config文件内容如下：
注意写路径的地方，按windows实际路径修改。
apiVersion: v1
clusters:
- cluster:
certificate-authority: C:\Users\DELL\.kube\ca.crt
server: https://192.168.113.148:8443
name: minikube
contexts:
- context:
cluster: minikube
user: minikube
name: minikube
current-context: minikube
kind: Config
preferences: {}
users:
- name: minikube
user:
client-certificate: C:\Users\DELL\.kube\client.crt
client-key: C:\Users\DELL\.kube\client.key
C:\Users\DELL>cd ./.kube
C:\Users\DELL\.kube>dir
驱动器 C 中的卷是 OS
卷的序列号是 DA63-CEC0
C:\Users\DELL\.kube 的目录
2020/07/02 12:28 <DIR> .
2020/07/02 12:28 <DIR> ..
2020/07/02 12:20 1,082 ca.crt
2020/07/02 12:28 <DIR> cache
2020/07/02 12:21 1,120 client.crt
2020/07/02 12:22 1,704 client.key
2020/07/02 12:22 433 config
2020/07/02 12:28 <DIR> http-cache
4 个文件 4,339 字节
4 个目录 71,635,701,760 可用字节
C:\Users\DELL\.kube>kubectl version
Client Version: version.Info{Major:"1", Minor:"18", GitVersion:"v1.18.0", GitCommit:"9e991415386e4cf155a24b1da15becaa390438d8", GitTreeState:"clean", BuildDate:"2020-03-25T14:58:59Z", GoVersion:"go1.13.8", Compiler:"gc", Platform:"windows/amd64"}
Server Version: version.Info{Major:"1", Minor:"18", GitVersion:"v1.18.3", GitCommit:"2e7996e3e2712684bc73f0dec0200d64eec7fe40", GitTreeState:"clean", BuildDate:"2020-05-20T12:43:34Z", GoVersion:"go1.13.9", Compiler:"gc", Platform:"linux/amd64"}
C:\Users\DELL\.kube>
在windows的控制台中输入kubectl version输出了minikube的相关信息，说明kubectl在windows下是正确安装且配置正确了的
官方的测试程序kubernetes-hello-world-example 总是会报一些奇奇怪怪的问题，想运行官方示例的话感觉有点麻烦
这里我用的另一位大佬的demo,以验证java程序能否正常访问k8s，可直接参考文章：http://www.mydlq.club/article/33/
将这个大佬的demo代码下载下来后导入到idea中运行即可，其demo地址为：https://github.com/my-dlq/blog-example/tree/master/springcloud/springcloud-kubernetes/springcloud-kubernetes-discovery-demo
项目启动好后在浏览器中访问下面的接口：
http://localhost:8080/service
返回了：
[“kubernetes”,“kube-dns”]
其结果与控制台的结果一致
C:\Users\DELL\.kube>kubectl get svc -A NAMESPACE NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE default kubernetes ClusterIP 10.96.0.1 <none> 443/TCP 96m kube-system kube-dns ClusterIP 10.96.0.10 <none> 53/UDP,53/TCP,9153/TCP 96m C:\Users\DELL\.kube>
原文：https://www.cnblogs.com/nuomm/p/13968887.html