自动化部署SSH密钥认证

1.脚本

#!bin/bash
[ ! -f /root/.ssh/id_rsa.pub ] && ssh-keygen -f /root/.ssh/id_rsa -P "" &>/dev/null
while read line;do
        ip=`echo $line | cut -d " " -f1`
        username=`echo $line | cut -d " " -f2`
        password=`echo $line | cut -d " " -f3`
expect <<EOF
        spawn ssh-copy-id -i /root/.ssh/id_rsa.pub $username@$ip
        expect {
                "yes/no" { send "yes\n";exp_continue}
                "password" { send "$password\n"}
        }
        expect eof
EOF
done < /etc/ansible/host_ip.txt