#!/bin/bash


ZABBIX_MAJOR_VER=7.0
ZABBIX_VER=${ZABBIX_MAJOR_VER}-1

URL="mirror.tuna.tsinghua.edu.cn/zabbix"

MYSQL_HOST=localhost
MYSQL_ZABBIX_USER="zabbix@localhost"

#MYSQL_HOST=10.0.0.100
#MYSQL_ZABBIX_USER="zabbix@'10.0.0.%'"

MYSQL_ZABBIX_PASS='123456'
MYSQL_ROOT_PASS='123456'

FONT=msyhbd.ttc

ZABBIX_IP=`hostname -I|awk '{print $1}'`
GREEN="echo -e \E[32;1m"
END="\E[0m"

. /etc/os-release 

color () {
    RES_COL=60
    MOVE_TO_COL="echo -en \\033[${RES_COL}G"
    SETCOLOR_SUCCESS="echo -en \\033[1;32m"
    SETCOLOR_FAILURE="echo -en \\033[1;31m"
    SETCOLOR_WARNING="echo -en \\033[1;33m"
    SETCOLOR_NORMAL="echo -en \E[0m"
    echo -n "$1" && $MOVE_TO_COL
    echo -n "["
    if [ $2 = "success" -o $2 = "0" ] ;then
        ${SETCOLOR_SUCCESS}
        echo -n $"  OK  "    
    elif [ $2 = "failure" -o $2 = "1"  ] ;then 
        ${SETCOLOR_FAILURE}
        echo -n $"FAILED"
    else
        ${SETCOLOR_WARNING}
        echo -n $"WARNING"
    fi
    ${SETCOLOR_NORMAL}
    echo -n "]"
    echo 
}

install_mysql () {
    [ $MYSQL_HOST != "localhost" ] && return 
    if [ $ID = "centos" -o $ID = "rocky" ] ;then
	    VERSION_ID=`echo $VERSION_ID | cut -d . -f1`
	    if [ ${VERSION_ID} == "8" ];then
            yum  -y install mysql-server
            systemctl enable --now mysqld
		elif [ ${VERSION_ID} == "7" ];then
		    yum -y install mariadb-server
			systemctl enable --now mariadb
		else
		    color "不支持的操作系统,退出" 1
		fi 
    else
        apt update
        apt -y install mysql-server
        sed -i "/^bind-address.*/c bind-address  = 0.0.0.0" /etc/mysql/mysql.conf.d/mysqld.cnf
        systemctl restart mysql
    fi
    mysqladmin -uroot password $MYSQL_ROOT_PASS
    mysql -uroot -p$MYSQL_ROOT_PASS <<EOF
set global log_bin_trust_function_creators = 0;
create database zabbix character set utf8mb4 collate utf8mb4_bin;
create user $MYSQL_ZABBIX_USER identified by "$MYSQL_ZABBIX_PASS";
grant all privileges on zabbix.* to $MYSQL_ZABBIX_USER;
set global log_bin_trust_function_creators = 1;
quit
EOF
    if [ $? -eq 0 ];then
        color "MySQL数据库准备完成" 0
    else
        color "MySQL数据库配置失败,退出" 1
        exit
    fi
}

install_zabbix () {
    if [ $ID = "centos" -o $ID = "rocky" ] ;then 
        rpm -Uvh https://${URL}/zabbix/${ZABBIX_MAJOR_VER}/rhel/${VERSION_ID}/x86_64/zabbix-release-${ZABBIX_VER}.el${VERSION_ID}.noarch.rpm
        if [ $? -eq 0 ];then
	        color "YUM仓库准备完成" 0
        else
            color "YUM仓库配置失败,退出" 1
		    exit
	    fi
	    sed -i "s#repo.zabbix.com#${URL}#" /etc/yum.repos.d/zabbix.repo
	    if [[ ${VERSION_ID} == 8 ]];then 
		    yum -y install zabbix-server-mysql zabbix-web-mysql zabbix-apache-conf zabbix-sql-scripts zabbix-selinux-policy zabbix-agent zabbix-get langpacks-zh_CN
        else 
		    yum -y install zabbix-server-mysql zabbix-agent  zabbix-get
			yum -y install centos-release-scl
			rpm -q yum-utils  || yum -y install yum-utils
			yum-config-manager --enable zabbix-frontend
			yum -y install zabbix-web-mysql-scl zabbix-apache-conf-scl
        fi
    else 
	   	wget https://${URL}/zabbix/${ZABBIX_MAJOR_VER}/ubuntu/pool/main/z/zabbix-release/zabbix-release_${ZABBIX_VER}+ubuntu${VERSION_ID}_all.deb
	    if [ $? -eq 0 ];then
           	color "APT仓库准备完成" 0
	    else
           	color "APT仓库配置失败,退出" 1
            exit
        fi
        dpkg -i zabbix-release_${ZABBIX_VER}+ubuntu${VERSION_ID}_all.deb
        sed -i.bak "s#repo.zabbix.com#${URL}#" /etc/apt/sources.list.d/zabbix.list
        apt update
        apt -y install zabbix-server-mysql zabbix-frontend-php zabbix-apache-conf zabbix-sql-scripts zabbix-agent zabbix-get language-pack-zh-hans 
    fi
}

config_mysql_zabbix () {
	if [ -f "$FONT" ] ;then 
	    mv /usr/share/zabbix/assets/fonts/graphfont.ttf{,.bak}
		cp  "$FONT" /usr/share/zabbix/assets/fonts/graphfont.ttf
	else
		color "缺少字体文件!" 1
	fi
	if [ $MYSQL_HOST = "localhost" ];then
       zcat /usr/share/zabbix-sql-scripts/mysql/server.sql.gz | mysql --default-character-set=utf8mb4 -uzabbix -p$MYSQL_ZABBIX_PASS -h$MYSQL_HOST zabbix
       mysql -uroot -p$MYSQL_ROOT_PASS -e "set global log_bin_trust_function_creators = 0"
	fi
	sed -i -e "/.*DBPassword=.*/c DBPassword=$MYSQL_ZABBIX_PASS" -e "/.*DBHost=.*/c DBHost=$MYSQL_HOST" /etc/zabbix/zabbix_server.conf
	if [ $ID = "centos" -o $ID = "rocky" ];then
	    if [[ ${VERSION_ID} == 8 ]];then 	        
           sed -i -e "/.*date.timezone.*/c php_value[date.timezone] = Asia/Shanghai" -e "/.*upload_max_filesize.*/c php_value[upload_max_filesize] = 20M" /etc/php-fpm.d/zabbix.conf
           systemctl enable --now zabbix-server zabbix-agent httpd php-fpm
		else
           sed -i "/.*date.timezone.*/c php_value[date.timezone] = Asia/Shanghai" /etc/opt/rh/rh-php72/php-fpm.d/zabbix.conf
           systemctl restart zabbix-server zabbix-agent httpd rh-php72-php-fpm
           systemctl enable zabbix-server zabbix-agent httpd rh-php72-php-fpm
		fi
	else
        sed -i "/date.timezone/c php_value date.timezone Asia/Shanghai" /etc/apache2/conf-available/zabbix.conf		
        chown -R www-data.www-data /usr/share/zabbix/
        systemctl enable  zabbix-server zabbix-agent apache2
        systemctl restart  zabbix-server zabbix-agent apache2
    fi
    if [ $?  -eq 0 ];then  
        echo 
        color "ZABBIX-${ZABBIX_VER}安装完成!" 0
        echo "-------------------------------------------------------------------"
        ${GREEN}"请访问: http://$ZABBIX_IP/zabbix"${END}
    else
        color "ZABBIX-${ZABBIX_VER}安装失败!" 1
        exit
    fi
}

install_mysql

install_zabbix

config_mysql_zabbix

#注意web是apache，在url路径下需要跟上/zabbix