官方地址：https://docs.aws.amazon.com/efs/latest/ug/wt1-test.html
用以下格式获取nfs的IP
[file-system-id].efs.[aws-region].amazonaws.com
例如
fs-88a12745.efs.ap-east-1.amazonaws.com
挂载命令
yum -y install nfs-utils
mkdir ~/efs-mount-point
sudo mount -t nfs -o nfsvers=4.1,rsize=1048576,wsize=1048576,hard,timeo=600,retrans=2,noresvport fs-88a12745.efs.ap-east-1.amazonaws.com:/ ~/efs-mount-point