CentOS7 安裝 k8s+docker

1. 安裝Docker-ce

--安裝依賴
yum install -y yum-utils device-mapper-persistent-data lvm2

--更改鏡像庫
yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo

--安裝docker-ce
yum install docker-ce

2.自籤TLS證書

--先下載cfssl密鑰生成工具
wget https://pkg.cfssl.org/R1.2/cfssl_linux-amd64
 wget https://pkg.cfssl.org/R1.2/cfssljson_linux-amd64
wget https://pkg.cfssl.org/R1.2/cfssl-certinfo_linux-amd64

--權限變更
chmod +x cfssl_linux-amd64 cfssljson_linux-amd64 cfssl-certinfo_linux-amd64

--換目錄
mv cfssl_linux-amd64 /usr/local/bin/cfssl
mv cfssljson_linux-amd64  /usr/local/bin/cfssljson
 mv cfssl-certinfo_linux-amd64  /usr/local/bin/cfssl-certinfo