kubesphere3.0安装

kubesphere3.0安装（所有的配置文件都在附件里面）

1、如果以前安装过kubelet,先重置：sudo kubeadm reset（所有节点，master和node节点）

卸载旧版本

yum remove -y kubelet kubeadm kubectl

安装kubelet、kubeadm、kubectl
yum install -y kubelet-1.17.3 kubeadm-1.17.3 kubectl-1.17.3  

开机启动和重启kubelet    
systemctl enable kubelet && systemctl start kubelet

#!/bin/bash

images=(
	kube-apiserver:v1.17.3
    kube-proxy:v1.17.3
	kube-controller-manager:v1.17.3
	kube-scheduler:v1.17.3
	coredns:1.6.5
	etcd:3.4.3-0
    pause:3.1
)

for imageName in ${images[@]} ; do
    docker pull registry.cn-hangzhou.aliyuncs.com/google_containers/$imageName
#   docker tag registry.cn-hangzhou.aliyuncs.com/google_containers/$imageName  k8s.gcr.io/$imageName
done

2、初始化master节点

  kubeadm join 10.0.2.15:6443 --token 88sifu.zuwpj1hrehuico60 \
    --discovery-token-ca-cert-hash sha256:900c13aa70efb0cf67ef9ef600ac165f5be5a7e90f4b595ead30d222b17f0249 

mkdir -p $HOME/.kube
sudo cp -i /etc/kubernetes/admin.conf $HOME/.kube/config
sudo chown $(id -u):$(id -g) $HOME/.kube/config

部署网络插件，用的是calico，

这个插件一直安装失败，有个node是running但是ready是0的解决办法是

rm -rf /var/lib/cni，

配置文件新增两行代码

 - name: IP_AUTODETECTION_METHOD
   value: "interface=eth0"

再执行kubectl apply -f calico.yaml

查看节点运行情况

kubeadm join 10.0.2.15:6443 --token 88sifu.zuwpj1hrehuico60 \
    --discovery-token-ca-cert-hash sha256:900c13aa70efb0cf67ef9ef600ac165f5be5a7e90f4b595ead30d222b17f0249 

3、搭建nfs作为默认sc所有节点

所有节点安装

yum install -y nfs-utils
  

echo "/nfs/data/ *(insecure,rw,sync,no_root_squash)" > /etc/exports

mkdir -p /nfs/data
systemctl enable rpcbind
systemctl enable nfs-server
systemctl start rpcbind
systemctl start nfs-server
exportfs -r

 showmount -e 10.0.2.15
mount -t nfs 10.0.2.15:/nfs/data/ /root/nfsmount