wget http://mirrors.aliyun.com/repo/Centos-7.repo
    hostnamectl set-hostname k8s-master01/node01
    初始准备：
    yum install -y conntrack ntpdate ntp ipvsadm ipset jq iptables curl sysstat libseccomp wget vim
    net-tools git
    systemctl stop firewalld && systemctl disable firewalld
    yum -y install iptables-services && systemctl start iptables && systemctl enable iptables
    && iptables -F && service iptables save
    swapoff -a && sed -i ‘/ swap / s/^(.)$/#\1/g’ /etc/fst
    setenforce 0 && sed -i ‘s/^SELINUX=.    /SELINUX=disabled/‘ /etc/selinux/config
    系统参数：
    cat > /etc/sysctl.d/kubernetes.conf <net.bridge.bridge-nf-call-iptables=1
    net.bridge.bridge-nf-call-ip6tables=1
    net.ipv4.ip_forward=1
    vm.swappiness=0
    vm.overcommit_memory=1
    vm.panic_on_oom=0
    fs.inotify.max_user_watches=89100
    EOF
    sysctl -p /etc/sysctl.d/kubernetes.conf
    安装：
    cat < /etc/yum.repos.d/kubernetes.repo
    [kubernetes]
    name=Kubernetes
    baseurl=http://mirrors.aliyun.com/kubernetes/yum/repos/kubernetes-el7-x86_64
    enabled=1
    gpgcheck=0
    repo_gpgcheck=0
    gpgkey=http://mirrors.aliyun.com/kubernetes/yum/doc/yum-key.gpg
    http://mirrors.aliyun.com/kubernetes/yum/doc/rpm-package-key.gpg
    EOF
    yum -y install kubeadm-1.15.1 kubectl-1.15.1 kubelet-1.15.1
    systemctl enable kubelet.service
    kubeadm init \
    —apiserver-advertise-address=192.168.66.200 \
    —image-repository registry.aliyuncs.com/google_containers \
    —kubernetes-version v1.15.0 \
    —service-cidr=10.1.0.0/16 \
    —pod-network-cidr=10.244.0.0/16
    kubectl apply -f https://github.com/coreos/flannel/blob/master/Documentation/kube-flannel.yml
    kubectl join