配置免密登录

#!/usr/bin/expect

VMS=(
    192.168.0.170
    192.168.0.171
    192.168.0.172
    192.168.0.173
    192.168.0.174
)

SERVER="192.168.0.175"
SERVER_PWD="123456"
CLIENT_PWD="654321"

function config_client() {
    for vm in ${!VMS[@]}; do
        sleep 1
        expect <<EOF
        spawn ssh ${VMS[$vm]}
        expect "yes/no"             {send "yes\r"}
        expect "assword"            {send "${CLIENT_PWD}\r"}
        expect "#"                  {send "rm -rf ~/.ssh/*\r"}
        expect "#"                  {send "ssh-keygen -t rsa -P '' -f ~/.ssh/id_rsa -q\r"}
        expect "#"                  {send "ssh-copy-id ${SERVER}\r"}
        expect "yes/no"             {send "yes\r"}
        expect "assword"            {send "${SERVER_PWD}\r"}
        expect "#"                  {send "exit\r"}
        expect "#"                  {send "exit\r"}
EOF
    done
}

function send_public_key() {
    for vm in ${!VMS[@]}; do
        sleep 1
        expect <<EOF
        spawn ssh-copy-id ${VMS[$vm]}
        expect "assword"            {send "${CLIENT_PWD}\r"}
        expect "#"                  {send "echo\r"}
EOF
    done
}

function main() {
    rm -rf ~/.ssh/*
    ssh-keygen -t rsa -P '' -f ~/.ssh/id_rsa
    config_client
    send_public_key
}

main