开源容器应用自动化部署技术Kubernetes安装教程

动力节点

    Kubernetes安装具体步骤
    所有服务器节点安装 Docker/kubeadm/kubelet/kubectl
    Kubernetes 默认容器运行环境是Docker,因此首先需要安装Docker;
    (1)安装 Docker
    更新docker的yum源
    yum install wget -y
    wget https://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo -O /etc/yum.repos.d/docker-ce.repo
    安装指定版本的docker:
    yum install docker-ce-19.03.13 -y
    yum install docker -y (这个安装的Docker版本偏旧) 1.13.x
    配置加速器加速下载 (https://cr.console.aliyun.com/)
    /etc/docker/daemon.json
    {
    "registry-mirrors": ["https://registry.docker-cn.com"]
    }
    https://gg3gwnry.mirror.aliyuncs.com
    然后执行:
    systemctl enable docker.service
    不然会提示警告;
    那么接下来需要搭建:kubeadm、kubelet、kubectl
    添加k8s的阿里云YUM源
    cat > /etc/yum.repos.d/kubernetes.repo << EOF
    [kubernetes]
    name=Kubernetes
    baseurl=https://mirrors.aliyun.com/kubernetes/yum/repos/kubernetes-el7-x86_64
    enabled=1
    gpgcheck=0
    repo_gpgcheck=0
    gpgkey=https://mirrors.aliyun.com/kubernetes/yum/doc/yum-key.gpg https://mirrors.aliyun.com/kubernetes/yum/doc/rpm-package-key.gpg
    EOF
    到时候下载k8s的相关组件才能找到下载源;
    (2)安装 kubeadm,kubelet 和 kubectl
    yum install kubelet-1.19.4 kubeadm-1.19.4 kubectl-1.19.4 -y
    然后执行:
    systemctl enable kubelet.service
    不然会提示警告;
    查看有没有安装:
    yum list installed | grep kubelet
    yum list installed | grep kubeadm
    yum list installed | grep kubectl
    
    
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