安装之前需要安装wget

下载wget地址
curl -O http://mirror.centos.org/centos/7/os/x86_64/Packages/wget-1.14-18.el7_6.1.x86_64.rpm
yum install wget-1.14-18.el7_6.1.x86_64.rpm -y

下载创建证书的cfssl

• cd /usr/local/src

wget http://***/cfssl/cfssl_linux-amd64 --no-check-certificate
wget http://***/cfssl/cfssljson_linux-amd64 --no-check-certificate
wget http://***/cfssl/cfssl-certinfo_linux-amd64 --no-check-certificate
chmod +x cfssl*
mkdir -p /opt/kubernetes/bin
mv cfssl-certinfo_linux-amd64 /opt/kubernetes/bin/cfssl-certinfo
mv cfssljson_linux-amd64 /opt/kubernetes/bin/cfssljson
mv cfssl_linux-amd64 /opt/kubernetes/bin/cfssl

• 如果集群部署 将上面的三个文件放到node节点的/opt/kubernetes/bin目录下

scp /opt/kubernetes/bin/cfssl* node_ip:/opt/kubernetes/bin