Kubernetes安装和使用

使用CentOS7安装Kubnernetes。

• 安装前，关闭防火墙

systemctl disable firewalldsystemctl stop firewalld

• 安装etcd和kubernetes（会自动安装docker）

yum install -y etcd kubernetes

使用Docker的阿里云加速器
阿里云加速器

• 修改两个配置文件

1)/etc/sysconfig/docker

OPTIONS='--selinux-enabled=false --insecure-registry index.tenxcloud.com'

注意要将gcr.io改为index.tenxcloud.com
2)/etc/kubernetes/apiserver
把admission_control参数中的ServiceAccount删除

• 按顺序启动

systemctl start etcdsystemctl start dockersystemctl start kube-apiserversystemctl start kube-controller-managersystemctl start kube-schedulersystemctl start kubeletsystemctl start kube-proxy

apiVersion: v1kind: ReplicationControllermetadata:  name: mysqlspec:  replicas: 1  selector:    app: mysql  template:    metadata:      labels:        app: mysql    spec:      containers:      - name: mysql        image: myql        ports:        - containerPort: 3306        env:        - name: MYSQL_ROOT_PASSWORD          value: "123456"