首先，生产环境依然决定采用源码编译安装，也是官方推荐的方式。adm依然建议在本地环境学习测试使用！！！
开始：
#时间同步
ntpdate ntp1.aliyun.com
hwclock -w
#关闭防火墙
systemctl disable firewalld
systemctl stop firewalld
#关闭selinux
vim /etc/sysconfig/selinux
SELINUX=disable
vim /etc/selinux/config
SELINUX=disable
setenforce 0
#关闭swap
1、swapoff -a
2、vim /etc/fstat 注释swap这一行后保存退出，确认swap已经关闭，使用命令free -m
iptables -F
iptables -t nat -F
iptables -I FORWARD -s 0.0.0.0/0 -d 0.0.0.0/0 -j ACCEPT
vim /etc/sysctl.conf
net.ipv4.ip_forward=1
net.bridge.bridge-nf-call-ip6tables = 1
net.bridge.bridge-nf-call-iptables = 1
net.bridge.bridge-nf-call-arptables = 1
vm.swappiness=0
sysctl -p
#设置/etc/hosts
#修改源
1、把/etc/yum.repos.d下的所有文件都放在backup文件夹中
2、wget -O /etc/yum.repos.d/CentOS7-Aliyun.repo http://mirrors.aliyun.com/repo/Centos-7.repo
3、yum clean all && yum makecache
4、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
repo_gpgcheck=1
gpgkey=https://mirrors.aliyun.com/kubernetes/yum/doc/yum-key.gpg https://mirrors.aliyun.com/kubernetes/yum/doc/rpm-package-key.gpg
EOF
wget https://mirrors.aliyun.com/kubernetes/yum/doc/yum-key.gpg
wget https://mirrors.aliyun.com/kubernetes/yum/doc/rpm-package-key.gpg
rpm --import yum-key.gpg
rpm --import rpm-package-key.gpg
5、cat <<EOF > /etc/yum.repos.d/docker.repo
[docker]
name=Docker CE Stable - $basearch
baseurl=https://download.docker.com/linux/centos/7/$basearch/stable
enabled=1
gpgcheck=1
gpgkey=https://download.docker.com/linux/centos/gpg
EOF
#安装docker
yum install -y https://download.docker.com/linux/centos/7/x86_64/stable/Packages/docker-ce-selinux-17.03.2.ce-1.el7.centos.noarch.rpm
sudo yum install -y docker-ce-17.03.2.ce-1.el7.centos
#在 /etc/docker 目录下创建daemon.json文件，并且加入以下配置
{
"storage-driver": "overlay2",
"storage-opts": [
"overlay2.override_kernel_check=true"
]
}
#启动docker
systemctl enable docker && systemctl start docker
#安装其他
yum install -y kubelet kubeadm kubectl
#查看需要的镜像，下载镜像，根据版本，如果需要翻墙，要改成墙外镜像的名字 通过tag
kubeadm config images list
#初始化master节点
kubeadm config images pull
kubeadm init \
--node-name master \
--kubernetes-version=v1.14.1 \
--pod-network-cidr=10.244.0.0/16
然后显示下边的文案表示安装成功！
Your Kubernetes control-plane has initialized successfully!
To start using your cluster, you need to run the following as a regular user:
mkdir -p $HOME/.kube
sudo cp -i /etc/kubernetes/admin.conf $HOME/.kube/config
sudo chown $(id -u):$(id -g) $HOME/.kube/config
You should now deploy a pod network to the cluster.
Run "kubectl apply -f [podnetwork].yaml" with one of the options listed at:
https://kubernetes.io/docs/concepts/cluster-administration/addons/
Then you can join any number of worker nodes by running the following on each as root:
kubeadm join x.x.x.x:6443 --token pfrwff.xxxxxxxx \
--discovery-token-ca-cert-hash sha256:xxxxxxxxx
#最后安装一个网络插件flannel
kubectl apply -f https://raw.githubusercontent.com/coreos/flannel/master/Documentation/kube-flannel.yml
