Cluster installation script

# !/bin/bash 
#Make sure BASE_SERVER has generated public key and private key before executing ssh-keygen -t rsa default 4 enter #Interactive 
input script ------------- Password-free login script 
SERVERS = " 192.168.1.111 192.168.1.104 " 
PASSWORD = a
BASE_SERVER=192.168.1.110

auto_ssh_copy_id() {
    expect -c "set timeout -1;
        spawn ssh-copy-id $1;
        expect {
            *(yes/no)* {send -- yes\r;exp_continue;}
            *assword:* {send -- $2\r;exp_continue;}
            eof        {exit 0;}
        }";
}

ssh_copy_id_to_all() {
    for SERVER in $SERVERS
    do
        auto_ssh_copy_id $SERVER $PASSWORD
    done
}

ssh_copy_id_to_all


for SERVER in $SERVERS
do
    scp install_everyone.sh root@$SERVER:/root
    ssh root@$SERVER /root/install_everyone.sh
done

install_everyone.sh

#!/bin/bash

BASE_SERVER=192.168.1.110
yum install -y wget
wget $BASE_SERVER/soft/jdk-7u45-linux-x64.tar.gz
tar -zxf jdk-7u45-linux-x64.tar.gz -C /usr/local
cat >> /etc/profile << EOF
export JAVA_HOME=/usr/local/jdk1.7.0_45
export PATH=\$PATH:\$JAVA_HOME/bin
EOF
source /etc/profile
service iptables stop
chkconfig iptables off