minikube 简单搭建 kubernetes（k8s）环境

我会带着你远行 2022-10-04 15:43 436阅读 0赞

minikube 简单搭建 kubernetes（k8s）环境，步骤如下

环境准备 centos 7 ，内存 2G，处理器 2核，硬盘 20G

**1、安装 docker**

依次执行如下命令

sudo yum remove docker \
                      docker-client \
                      docker-client-latest \
                      docker-common \
                      docker-latest \
                      docker-latest-logrotate \
                      docker-logrotate \
                      docker-engine

sudo yum install -y yum-utils

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dzanp6Y2Jx_size_16_color_FFFFFF_t_70][]

sudo yum-config-manager \
        --add-repo \
        https://download.docker.com/linux/centos/docker-ce.repo

sudo yum install docker-ce docker-ce-cli containerd.io

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dzanp6Y2Jx_size_16_color_FFFFFF_t_70 1][]

安装后为 docker配置国内镜像源

创建下面目录，如果已经存在则跳过

cd /etc

mkdir docker

sudo vi /etc/docker/daemon.json

daemon.json 文件内容如下

{"registry-mirrors": ["https://docker.mirrors.ustc.edu.cn"]}

![20210712112614394.png][]

镜像配置完成后，重启 docker，查看 docker版本

systemctl restart docker

docker version

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dzanp6Y2Jx_size_16_color_FFFFFF_t_70 2][]

docker 安装完成

**2、安装 minikube**

下载 minikube

curl -LO https://storage.googleapis.com/minikube/releases/v1.20.0/minikube-linux-amd64

安装 minikube

sudo install minikube-linux-amd64 /usr/local/bin/minikube

查看 minikube版本

minikube version

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dzanp6Y2Jx_size_16_color_FFFFFF_t_70 3][]

**3、开启 kubernetes集群**

minikube start --vm-driver=none --image-repository=registry.cn-hangzhou.aliyuncs.com/google_containers

运行上面开启命令如果出现下面报错，则安装 conntrack

![20210712113303247.png][]

conntrack 安装命令

yum install conntrack

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dzanp6Y2Jx_size_16_color_FFFFFF_t_70 4][]

如果没出现上面报错则忽略安装

笔者这里出现了上面报错，故进行了 conntrack安装

安装后再次启动 kubernetes集群

minikube start --vm-driver=none --image-repository=registry.cn-hangzhou.aliyuncs.com/google_containers

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dzanp6Y2Jx_size_16_color_FFFFFF_t_70 5][]

启动成功

查看状态

minikube status

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dzanp6Y2Jx_size_16_color_FFFFFF_t_70 6][]

**4、安装 kubectl**

curl -LO https://storage.googleapis.com/kubernetes-release/release/$(curl -s https://storage.googleapis.com/kubernetes-release/release/stable.txt)/bin/linux/amd64/kubectl

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dzanp6Y2Jx_size_16_color_FFFFFF_t_70 7][]

赋予权限

chmod +x ./kubectl

mv ./kubectl /usr/local/bin/kubectl

查看版本

kubectl version

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dzanp6Y2Jx_size_16_color_FFFFFF_t_70 8][]

kubectl 安装完成

**5、运行 pod**

这里以 nginx 为例

vi pod_nginx.yaml

pod\_nginx.yaml 内容如下

映射宿主机器8080端口

apiVersion: v1
    kind: Pod
    metadata:
      name: nginx
      labels:
        app: nginx
    spec:
      containers:
      - name: nginx
        image: nginx
        ports:
        - containerPort: 80
          hostPort: 8080

启动

kubectl apply -f pod_nginx.yaml

查看状态

kubectl get pods -o wide

kubectl describe pod nginx

kubectl get pods

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dzanp6Y2Jx_size_16_color_FFFFFF_t_70 9][]

**6、测试**

浏览器访问宿主机器 ip + 8080 端口

笔者宿主机器 ip 是 192.168.0.116

访问地址：[http://192.168.0.116:8080/][http_192.168.0.116_8080]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dzanp6Y2Jx_size_16_color_FFFFFF_t_70 10][]

**7、minikube 其他命令**

开启 kubernetes集群

minikube start

关闭 kubernetes集群

minikube stop

删除 kubernetes集群

minikube delete

> 参考文档：
> 
> [https://docs.docker.com/engine/install/centos/][https_docs.docker.com_engine_install_centos]
> 
> [https://minikube.sigs.k8s.io/docs/start/][https_minikube.sigs.k8s.io_docs_start]

至此完

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dzanp6Y2Jx_size_16_color_FFFFFF_t_70]: /images/20221004/ae287e99dd04459caea2ff5934d3a383.png
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[20210712112614394.png]: /images/20221004/1ab1367b81f745cabbed741b2ff8592e.png
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[20210712113303247.png]: /images/20221004/f0ba37fc4b0842f293fa8f1b5ca897c6.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dzanp6Y2Jx_size_16_color_FFFFFF_t_70 4]: /images/20221004/83923298dd3247608d57b1c6b5ae3a74.png
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[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dzanp6Y2Jx_size_16_color_FFFFFF_t_70 7]: /images/20221004/f381d4d082e74875a09d7e6da7afebce.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dzanp6Y2Jx_size_16_color_FFFFFF_t_70 8]: /images/20221004/08e20f919873405cb3ff3257f9116bfc.png
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[http_192.168.0.116_8080]: http://192.168.0.116:8080/
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dzanp6Y2Jx_size_16_color_FFFFFF_t_70 10]: /images/20221004/17b2ada8649245e99bcb30fd81c58add.png
[https_docs.docker.com_engine_install_centos]: https://docs.docker.com/engine/install/centos/
[https_minikube.sigs.k8s.io_docs_start]: https://minikube.sigs.k8s.io/docs/start/