自动化部署脚本

2015-01-23

在搭建集群的过程中如果每台机器都要手动配置环境变量那简直太难受了，
用shell脚本批量配置最好不过了，先写一个boot.sh


#!/bin/bash

SERVERS="192.168.33.61 192.168.33.62 192.168.33.63 192.168.33.64"
PASSWORD=hadoop
BASE_SERVER=192.168.33.64

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 $SERVERS
do
    scp install.sh root@$SERVER:/root
    ssh root@$SERVER /root/install.sh
done

接下来写install_everyone.sh

#!/bin/bash

BASE_SERVER=192.168.33.64
yum install -y wget
wget $BASE_SERVER/soft/jdk-7u45-linux-x64.tar.gz
tar -zxvf 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

keepAlived 脚本

#!/bin/bash
while true;
do
A=ps -ef|grep tomcat |wc -l
B=ps -ef|grep keepalived |wc -l
echo $A
if [ $A -eq 1 ];then
echo ‘restart tomcat!!!!’
/usr/local/server/apache-tomcat-6.0.37/bin/startupsss.sh
if [ $A -eq 1 ];then
if [ $B -gt 1 ];then
echo ‘tomcat dead !!!! kill keepalived’
killall keepalived
fi
fi
fi
if [ $A -eq 2 ];then
if [ $B -eq 1 ];then
echo ‘tomcat live !!!! start keepalived’
service keepalived start
fi
fi
sleep 3
done