k8s集群搭建之一：基础环境

yum -y install epel-release

yum -y install  net-tools  vim   wget   ntpdate  wget  tree nload

# cat /etc/hosts

192.168.137.66 k8s-master
192.168.137.16 k8s-node1
192.168.137.26 k8s-node2

setenforce 0
sed -i ‘s/enforcing/disabled/‘  /etc/selinux/config
getenforce

systemctl   stop firewalld
systemctl disable firewalld

swappoff   -a
cat <<EOF >/etc/sysctl.d/k8s.conf

　net.brideg.brideg-nf-call-ip6tables =1
  net.bridge.bridge-nf-call-iptables = 1
  vm.swappiness=0

  EOF

  sysctl --system

cat <<EOF > /etc/yum.repos.d/kubernetes.repo 

  [kubernetes]

  name=Kubernetes baseurl=https://mirrors.aliyun.com/kubernetes/yum/repos/kubernetes-el7-x86_64/

  enabled=1

  gpgcheck=1

  gpgkey=https://mirrors.aliyun.com/kubernetes/yum/doc/yum-key.gpg 

  EOF

ssh-keygen -t rsa  #一路回车

ssh-copy-id -i  /root/.ssh/id_rsa.pub root@192.168.137.16  #[后面的ip换成其他的ip完善三台操作]

yum install -y yum-utils device-mapper-persistent-data lvm2

  yum-config-manager \

  --add-repo \

  https://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo

  yum  install docker-ce -y

　#配置私有仓库：信任地址和国内镜像地址

  mkdir -p  /etc/docker

  cat /etc/docker/daemon.json

  {

  "registry-mirrors": [ "https://registry.docker-cn.com"],

  "insecure-registries":["192.168.137.1:5000"]

  }

  #启动docker并设置开机启动

  systemctl start docker

  systemctl enable docker