# Variaveis de ambiente

PHPINI="/etc/php.ini"
ZBX_VER='2.5.1';

SENHA="creative2014";
SENHAROOT="creative2014_root";
NOMEBANCO="zbx_db3";
USUARIODB="zbx_db3";

# Criando e acessando o diretorio temporario de instalacao
mkdir /install 
cd /install

# Habilitando repositorio centos
wget http://epel.gtdinternet.com/6/i386/epel-release-6-8.noarch.rpm
rpm -ivh epel-release-6-*.rpm  

# Atualizando pacotes e instalando os pre-req
yum -y update;
yum -y groupinstall 'Development Tools' ; 
yum -y install wget net-snmp net-snmp-devel net-snmp-utils net-snmp-libs iksemel-devel zlib-devel libc-devel curl-devel automake libidn-devel openssl-devel rpm-devel OpenIPMI-devel libssh2-devel make fping ; 
yum -y install mysql-devel mysql mysql-server;

# Instalando php 5.4
rpm -Uvh https://mirror.webtatic.com/yum/el6/latest.rpm
yum -y install php54w php54w-bcmath php54w-gd php54w-mbstring  php54w-xml php54w-ldap php54w-mysql php54w-ldap php54w-mysql httpd --skip-broken

# Criando o usuario zabbix
useradd zabbix -s /bin/false

# Configurando o php.ini
sed -i "s/date.timezone/;date.timezone/" $PHPINI;
sed -i "s/max_execution_time/;max_execution_time/" $PHPINI;
sed -i "s/max_input_time/;max_input_time/" $PHPINI;
sed -i "s/post_max_size/;post_max_size/" $PHPINI;

echo "date.timezone =America/Sao_Paulo" >> $PHPINI;
echo "max_execution_time = 300" >> $PHPINI;
echo "max_input_time = 300" >> $PHPINI;
echo "post_max_size = 16M" >> $PHPINI;
echo "always_populate_raw_post_data=-1" >> $PHPINI

# Descobre a ultima versao de testes do zabbix, baixa e descompacta
URL_DOWN=`curl -s http://www.zabbix.com/developers.php | grep $ZBX_VER | awk -Fhref '{print $2}' | awk -F\> '{print $1}' | awk -F\" '{print $2}'`
curl $URL_DOWN -o zabbix.tgz
tar -xzvf zabbix.tgz

# Garantindo o autostart de mysql e apache
chkconfig --level 35 httpd on
chkconfig --add httpd
chkconfig --level 35 mysqld on
chkconfig --add mysqld
service mysqld restart
service httpd restart

#Definindo a senha do root
/usr/bin/mysqladmin -u root password $SENHAROOT;

# Configurando o banco de dados
echo "create database $NOMEBANCO character set utf8;" | mysql -uroot -p$SENHAROOT
echo "GRANT ALL PRIVILEGES ON $NOMEBANCO.* TO $USUARIODB@localhost IDENTIFIED BY '$SENHA' WITH GRANT OPTION;" | mysql -uroot -p$SENHAROOT

# Populando a base de dados
cd /install/zabbix-$ZBX_VER
cat database/mysql/schema.sql | mysql -u $USUARIODB -p$SENHA $NOMEBANCO && cat database/mysql/images.sql | mysql -u $USUARIODB -p$SENHA $NOMEBANCO && cat database/mysql/data.sql | mysql -u $USUARIODB -p$SENHA $NOMEBANCO;

# Criando o frontend
rm /var/www/html/index.html 
cp -Rpv frontends/php/* /var/www/html/ 

# Criando o arquivo de configuracao do frontend
echo -e "<?php
// Zabbix GUI configuration file. - Created by Adail Horst
global \$DB;

\$DB['TYPE']				= 'MYSQL';
\$DB['SERVER']			= 'localhost';
\$DB['PORT']				= '0';
\$DB['DATABASE']			= '$NOMEBANCO';
\$DB['USER']				= '$USUARIODB';
\$DB['PASSWORD']			= '$SENHA';
// Schema name. Used for IBM DB2 and PostgreSQL.
\$DB['SCHEMA']			= '';

\$ZBX_SERVER				= 'localhost';
\$ZBX_SERVER_PORT		= '10051';
\$ZBX_SERVER_NAME		= 'Teste do ZBX 3.0 ($ZBX_VER)';

\$IMAGE_FORMAT_DEFAULT	= IMAGE_FORMAT_PNG;
?>
" > /var/www/html/conf/zabbix.conf.php


# Compilando os binarios
cd /install/zabbix-$ZBX_VER

# Para Server e agente
./configure --enable-server --enable-agent --with-mysql --with-net-snmp  --with-libcurl --with-openipmi && make install

# Para proxy e agente
#./configure --enable-proxy --enable-agent --with-sqlite3 --with-net-snmp  --with-libcurl --with-openipmi  &&  make install

# Configurando inicializacao
cp -Rpv misc/init.d/fedora/core5/zabbix_* /etc/init.d/
chmod +x /etc/init.d/za*
chkconfig --add zabbix_server
chkconfig --add zabbix_agentd
chkconfig --level 35 zabbix_server on
chkconfig --level 35 zabbix_agentd on
chmod 755 /var/www/html/conf/zabbix.conf.php

# Configurando o SELinux
sed -i "s/=enforcing/=disabled/g" /etc/selinux/config
# Desabilita o SELINUX neste boot
setenforce 0

# Baixando os scripts de configuracao do agente e do servidor, conforme livro
cd /install
curl -s https://raw.githubusercontent.com/zabbix-brasil/livrozabbix2014/master/Capitulo_2/configuraAgente.sh -o  configuraAgente.sh
curl -s https://raw.githubusercontent.com/zabbix-brasil/livrozabbix2014/master/Capitulo_2/criaConfServer.sh -o criaConfServer.sh
sh configuraAgente.sh
# Mudando banco e senha para o novo nome do zbx3 para testes
sed -i "s/zbx_db/zbx_db3/g" criaConfServer.sh
sh criaConfServer.sh

service zabbix_agentd restart
service zabbix_server restart

iptables -F
echo -e "Alterar o arquivo /etc/sysconfig/iptables adicionando as regras de iptables
-A RH-Firewall-1-INPUT -p udp -m udp --dport 631 -j ACCEPT
-A RH-Firewall-1-INPUT -p tcp -m tcp --dport 80 -j ACCEPT
-A RH-Firewall-1-INPUT -p tcp -m tcp --dport 443 -j ACCEPT
-A RH-Firewall-1-INPUT -p tcp -m tcp --dport 10050 -j ACCEPT
-A RH-Firewall-1-INPUT -p tcp -m tcp --dport 10051 -j ACCEPT
"