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Kafka-日志收集分析平台搭建

作者：很楠不爱3 | 2024-05-16 14:01:06

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Kafka-日志收集分析平台搭建

项目名称: Kafka-日志收集分析平台搭建

项目环境: centos7.9,nginx-1.20.2,filebeat-7.17.15, zookeeper-3.7.2,kafka_2.13-2.7.2,mysql-5.7.1

项目描述: 该项目旨在搭建一个可靠、高性能的日志收集和分析平台，使用 Kafka 作为消息队列和数据管道，实现大规模数据的实时处理和分析

项目步骤:

1、准备4台虚拟机,搭建nginx集群,并初始化环境

2、准备三台虚拟机,搭建Kafka集群,并通过zookeeper来管理

3、在nginx集群上安装filebeat插件,并测试确保日志可以输入到Kafka集群

4、通过创建消费者python程序将kafka中清洗的数据输入到mysql数据库中存储

项目详细步骤:

1、准备四台虚拟机,搭建nginx集群,并初始化环境

1.1、创建四台虚拟机,并进行静态ip设置以及防火墙关闭工作

nginx1	192.168.118.163
nginx2	192.168.118.164
nginx3	192.168.118.165
nginx0	192.168.118.162

修改主机名分别为nginx-01,nginx-02,nginx-03


[root@nginx-nginx01 ~]# hostnamectl set-hostname nginx01
[root@nginx-nginx02 ~]# hostnamectl set-hostname nginx02
[root@nginx-nginx03 ~]# hostnamectl set-hostname nginx03
[root@nginx-nginx00 ~]# hostnamectl set-hostname nginx00

在四台nginx机器上进行如下操作,将动态ip修改为静态ip地址


[root@nginx-nginx01 ~]# vim /etc/sysconfig/network-scripts/ifcfg-ens33
BOOTPROTO="none"
IPADDR=192.168.118.163
NETMASK=255.255.255.0
GATEWAY=192.168.118.2
DNS1=192.168.118.2
DNS2=114.114.114.114
 
[root@nginx-nginx02 ~]# vim /etc/sysconfig/network-scripts/ifcfg-ens33
BOOTPROTO="none"
IPADDR=192.168.118.164
NETMASK=255.255.255.0
GATEWAY=192.168.118.2
DNS1=192.168.118.2
DNS2=114.114.114.114
 
[root@nginx-nginx03 ~]# vim /etc/sysconfig/network-scripts/ifcfg-ens33
BOOTPROTO="none"
IPADDR=192.168.118.165
NETMASK=255.255.255.0
GATEWAY=192.168.118.2
DNS1=192.168.118.2
DNS2=114.114.114.114
 
[root@nginx-nginx00 ~]# vim /etc/sysconfig/network-scripts/ifcfg-ens33
BOOTPROTO="none"
IPADDR=192.168.118.162
NETMASK=255.255.255.0
GATEWAY=192.168.118.2
DNS1=192.168.118.2
DNS2=114.114.114.114

在四台机器上分别关闭防火墙以及selinux


[root@nginx-nginx01 ~]# iptables -F && systemctl stop firewalld && systemctl enable firewalld
[root@nginx-nginx01 ~]# setenforce 0
[root@nginx-nginx01 ~]# vim /etc/selinux/config 
SELINUX=disabled
 
[root@nginx-nginx02 ~]# iptables -F && systemctl stop firewalld && systemctl enable firewalld
[root@nginx-nginx02 ~]# setenforce 0
[root@nginx-nginx02 ~]# vim /etc/selinux/config 
SELINUX=disabled
 
[root@nginx-nginx03 ~]# iptables -F && systemctl stop firewalld && systemctl enable firewalld
[root@nginx-nginx03 ~]# setenforce 0
[root@nginx-nginx03 ~]# vim /etc/selinux/config 
SELINUX=disabled
 
[root@nginx-nginx00 ~]# iptables -F && systemctl stop firewalld && systemctl enable firewalld
[root@nginx-nginx00 ~]# setenforce 0
[root@nginx-nginx00 ~]# vim /etc/selinux/config 
SELINUX=disabled

1.2、将nginx01,02,03作为web服务器,nginx00作为负载均衡器

在一台机器上进行wget下载nginx的安装包,然后分别scp到其他三台机器


[root@nginx-nginx01 ~]# wget https://nginx.org/download/nginx-1.20.2.tar.gz
[root@nginx-nginx01 ~]# scp ~/nginx-1.20.2.tar.gz 192.168.118.164:/root
[root@nginx-nginx01 ~]# scp ~/nginx-1.20.2.tar.gz 192.168.118.165:/root
[root@nginx-nginx01 ~]# scp ~/nginx-1.20.2.tar.gz 192.168.118.162:/root

先安装依赖，进行分别解压tar包,然后进行安装编译nginx


yum -y install pcre-devel openssl openssl-devel gd-devel gcc gcc-c++
 
[root@nginx-nginx01 ~]# tar -xvf nginx-1.20.2.tar.gz 
[root@nginx-nginx01 ~]# cd nginx-1.20.2
[root@nginx-nginx01 nginx-1.20.2]# ./configure
[root@nginx-nginx01 nginx-1.20.2]# make
[root@nginx-nginx01 nginx-1.20.2]# sudo make install
 
[root@nginx-nginx02 ~]# tar -xvf nginx-1.20.2.tar.gz 
[root@nginx-nginx02 ~]# cd nginx-1.20.2
[root@nginx-nginx02 nginx-1.20.2]# ./configure
[root@nginx-nginx02 nginx-1.20.2]# make
[root@nginx-nginx02 nginx-1.20.2]# sudo make install
 
[root@nginx-nginx03 ~]# tar -xvf nginx-1.20.2.tar.gz 
[root@nginx-nginx03 ~]# cd nginx-1.20.2
[root@nginx-nginx03 nginx-1.20.2]# ./configure
[root@nginx-nginx03 nginx-1.20.2]# make
[root@nginx-nginx03 nginx-1.20.2]# sudo make install
 
[root@nginx-nginx00 ~]# tar -xvf nginx-1.20.2.tar.gz 
[root@nginx-nginx00 ~]# cd nginx-1.20.2
[root@nginx-nginx00 nginx-1.20.2]# ./configure
[root@nginx-nginx00 nginx-1.20.2]# make
[root@nginx-nginx00 nginx-1.20.2]# sudo make install

启动nginx,开机自启,并将nginx启动路径写入环境变量


[root@nginx-nginx01 sbin]#/usr/local/nginx/sbin/nginx
[root@nginx-nginx01 sbin]# vim /etc/rc.local
/usr/local/nginx/sbin/nginx
 
[root@nginx-nginx01 rc.d]# chmod +x /etc/rc.d/rc.local
[root@nginx-kafka01 ~]# echo "PATH=$PATH:/usr/local/nginx/sbin" >>  ~/.bashrc
[root@nginx-kafka01 ~]# source ~/.bashrc

编辑nginx配置文件,提供web服务,并将nginx00作为负载均衡器


[root@nginx-nginx01 conf]# vim /usr/local/nginx/conf/nginx.conf
server {
    listen 80 default_server;
    server_name  www.plf.com;
 
    root         /usr/share/nginx/html;
 
    access_log  /var/log/nginx/sc/access.log main;
 
    location  / {
 
    }
}
 
[root@nginx-nginx02 conf]# vim /usr/local/nginx/conf/nginx.conf
server {
    listen 80 default_server;
    server_name  www.plf.com;
 
    root         /usr/share/nginx/html;
 
    access_log  /var/log/nginx/sc/access.log main;
 
    location  / {
 
    }
}
 
[root@nginx-nginx03 conf]# vim /usr/local/nginx/conf/nginx.conf
server {
    listen 80 default_server;
    server_name  www.plf.com;
 
    root         /usr/share/nginx/html;
 
    access_log  /var/log/nginx/sc/access.log main;
 
    location  / {
 
    }
}
 
 
[root@nginx-nginx00 conf]# vim /usr/local/nginx/conf/nginx.conf
 
log_format  main  '$remote_addr -$http_x_real_ip - $remote_user [$time_local] "$request" '
                      '$status $body_bytes_sent "$http_referer" '
                      '"$http_user_agent" "$http_x_forwarded_for"';
 
 
upstream app{
	server 192.168.118.163 weight=3;
	server 192.168.118.164 weight=1;
	server 192.168.118.165 weight=1;
 
	}
    server {
	listen 80;
	server_name www.feng.com;
	location / {
		proxy_pass http://app;
		proxy_set_header X-Real-IP $remote_addr;  
        #设置X-Real-IP 用于保存客户端真实ip
	}
       }

2、准备三台虚拟机,搭建Kafka集群,并通过zookeeper来管理

kafka01	192.168.118.166
kafka02	192.168.118.167
kafka03	192.168.118.168

修改三台机器的主机名,并且将主机名映射到ip地址


[root@nginx-kafka01 html]# hostnamectl set-hostname kafka01
[root@nginx-kafka01 html]# vim /etc/hosts
192.168.118.166 nginx-kafka01
192.168.118.167 nginx-kafka02
192.168.118.168 nginx-kafka03
 
[root@nginx-kafka02 html]# hostnamectl set-hostname kafka01
[root@nginx-kafka02 html]# vim /etc/hosts
192.168.118.166 nginx-kafka01
192.168.118.167 nginx-kafka02
192.168.118.168 nginx-kafka03
 
[root@nginx-kafka03 html]# hostnamectl set-hostname kafka01
[root@nginx-kafka03 html]# vim /etc/hosts
192.168.118.166 kafka01
192.168.118.167 kafka02
192.168.118.168 kafka03

安装java环境,kafka以及zookeeper


[root@nginx-kafka01 html]# yum install java wget -y
[root@nginx-kafka01 html]# wget https://mirrors.bfsu.edu.cn/apache/kafka/2.8.1/kafka_2.12-2.8.1.tgz
[root@nginx-kafka01 html]# tar xf kafka_2.12-2.8.1.tgz
[root@nginx-kafka01 html]# wget https://mirrors.bfsu.edu.cn/apache/zookeeper/zookeeper-3.6.3/apache-zookeeper-3.6.4-bin.tar.gz
[root@nginx-kafka01 html]#tar xf apache-zookeeper-3.6.4-bin.tar.gz

配置kafka


[root@nginx-kafka01 ~]# vim ~/kafka_2.13-2.7.2/config/server.properties
broker.id=1
listeners=PLAINTEXT://nginx-kafka01:9092
zookeeper.connect=192.168.118.166:2181,192.168.118.167:2181,192.168.118.168:2181
 
[root@nginx-kafka02 ~]# vim ~/kafka_2.13-2.7.2/config/server.properties
broker.id=2
listeners=PLAINTEXT://nginx-kafka02:9092
zookeeper.connect=192.168.118.166:2181,192.168.118.167:2181,192.168.118.168:2181
 
[root@nginx-kafka03 ~]# vim ~/kafka_2.13-2.7.2/config/server.properties
broker.id=3
listeners=PLAINTEXT://nginx-kafka03:9092
zookeeper.connect=192.168.118.166:2181,192.168.118.167:2181,192.168.118.168:2181

配置zk


[root@nginx-kafka01 conf]# cd /root/apache-zookeeper-3.7.2-bin/conf
[root@nginx-kafka01 conf]# cp zoo_sample.cfg zoo.cfg
[root@nginx-kafka01 conf]# vim zoo.cfg 
server.1=192.168.118.166:3888:4888
server.2=192.168.118.166:3888:4888
server.3=192.168.118.166:3888:4888
#3888和4888都是端口 一个用于数据传输，一个用于检验存活性和选举

创建/tmp/zookeeper目录，在目录中添加myid文件，文件内容就是本机指定的zookeeper id内容


[root@nginx-kafka01 zookeeper]# mkdir /tmp/zookeeper/myid 
[root@nginx-kafka01 zookeeper]# echo 1 > /tmp/zookeeper/myid
 
[root@nginx-kafka02 zookeeper]# mkdir /tmp/zookeeper/myid 
[root@nginx-kafka02 zookeeper]# echo 2 > /tmp/zookeeper/myid
 
[root@nginx-kafka03 zookeeper]# mkdir /tmp/zookeeper/myid 
[root@nginx-kafka04 zookeeper]# echo 3 > /tmp/zookeeper/myid

启动zookeeper,并查看状态,先启动zookeeper再启动kafka


[root@kafka01 bin]# ./zkServer.sh start
[root@kafka01 bin]# ./zkServer.sh status

启动kafka


[root@nginx-kafka01 ~]# cd kafka_2.13-2.7.2
[root@nginx-kafka01 kafka_2.13-2.7.2]# bin/kafka-server-start.sh -daemon config/server.properties

测试kafka集群,创建topic,查看topic,创建生产者,以及消费者


[root@nginx-kafka01 kafka_2.12-2.8.1]# bin/kafka-topics.sh --create --zookeeper 192.168.1.95:2181 --replication-factor 3 --partitions 3 --topic sc
 
[root@nginx-kafka01 kafka_2.12-2.8.1]# bin/kafka-topics.sh --list --zookeeper 192.168.1.95:2181
 
[root@nginx-kafka01 kafka_2.12-2.8.1]# bin/kafka-console-producer.sh --broker-list 192.168.118.166:9092 --topic sc
>xixi
>haha
>didi
>hello
>world!!!!!
 
[root@nginx-kafka01 kafka_2.12-2.8.1]# bin/kafka-console-consumer.sh --bootstrap-server 192.168.118.167:9092 --topic sc --from-beginning
haha
hello
didi
xixi
world!!!!!

3、在nginx集群上安装filebeat插件,并测试确保日志可以输入到Kafka集群

安装filebeat,并设置仓库以及开机自启


[root@nginx01 /]# rpm --import https://packages.elastic.co/GPG-KEY-elasticsearch
[root@nginx01 /]# vim /etc/yum.repos.d/fb.repo
[elastic-7.x]
name=Elastic repository for 7.x packages
baseurl=https://artifacts.elastic.co/packages/7.x/yum
gpgcheck=1
gpgkey=https://artifacts.elastic.co/GPG-KEY-elasticsearch
enabled=1
autorefresh=1
type=rpm-md
[root@nginx01 /]# yum  install  filebeat -y
[root@nginx01 /]# systemctl enable filebeat

配置filebeat文件,指定读取日志,以及输出到kafka


[root@nginx01 /]# cd /etc/filebeat
[root@nginx01 filebeat]# cp filebeat.yml filebeat.yml.bak
[root@nginx01 filebeat]# >filebeat.yml
[root@nginx01 filebeat]# vim filebeat.yml
filebeat.inputs:
- type: log
  # Change to true to enable this input configuration.
  enabled: true
  # Paths that should be crawled and fetched. Glob based paths.
  paths:
    - /usr/local/nginx/logs/access.log 
#==========------------------------------kafka-----------------------------------
output.kafka:
  hosts: ["192.168.118.163:9092","192.168.118.163:9092","192.168.118.163:9092"]
  topic: nginxlog
  keep_alive: 10s

创建主题nginxlog,启动服务,进行消费测试


[root@nginx01 kafka_2.13-2.7.2]# bin/kafka-topics.sh --create --zookeeper 192.168.118.167:2181 --replication-factor 3 --partitions 1 --topic nginxlog
[root@nginx01 kafka_2.13-2.7.2]# systemctl start  filebeat
[root@nginx-kafka01 kafka_2.1-2.7.2]# bin/kafka-console-consumer.sh --bootstrap-server 192.168.118.168:9092 --topic nginxlog --from-beginning

4、通过创建消费者python程序将kafka中清洗的数据输入到mysql数据库中存储

需求分析：

需要nginx日志的ip，时间，带宽字段
将ip字段解析成相应的省份、运营商
存入数据库的字段： id，时间，省份，运营商，带宽

准备一台mysql服务器,进行创建数据库,以及数据表,和字段


create database flask_database;
use flask_database;
CREATE TABLE isp_index (
  id int(11) NOT NULL AUTO_INCREMENT,
  isp_name varchar(256) DEFAULT NULL,
  PRIMARY KEY (`id`)
)
CREATE TABLE prov_index (
  id int(11) NOT NULL AUTO_INCREMENT,
  prov_name varchar(256) DEFAULT NULL,
  PRIMARY KEY (`id`)
)
CREATE TABLE `nginxlog` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `dt` datetime NOT NULL,
  `prov` int(11) DEFAULT NULL,
  `isp` int(11) DEFAULT NULL,
  `bd` float DEFAULT NULL,
  PRIMARY KEY (`id`)
)

编写python脚本,从kafka获取日志

获取kafka的脚本


[root@nginx-kafka01 opt]# cat python_consumer.py 
from pykafka import KafkaClient
import json
import requests
import time
import mysql_connect
import pymysql
taobao_url= "https://ip.taobao.com/outGetIpInfo?accessKey=alibaba-inc&ip="
prov_dict=mysql_connect.prov_dict
isp_dict=mysql_connect.isp_dict
 
def import_data(dt,prov,isp,bd):
    conn = pymysql.connect(host='192.168.118.157',port=3306,user='root',passwd='123456',db='sanchuang')
    # 创建游标
    cursor = conn.cursor()
    # 插入数据
    cursor.execute('insert into nginxlog(dt,prov,isp,bd) values("%s","%s","%s","%s")' % (dt,prov,isp,bd))
    conn.commit()
    conn.close()
    cursor.close()
 
def resolv_ip(ip):
    response=requests.get(taobao_url+ip)
    if response.status_code==200:
        tmp_dict=json.loads(response.text)
        prov=tmp_dict['data']['region']
        isp=tmp_dict['data']['isp']
        return prov,isp
    return None,None     
 
def trans_time(dt):
    timeArray=time.strptime(dt,"%d/%b/%Y:%H:%M:%S") 
    new_time=time.strftime("%Y-%m-%d %H:%M:%S",timeArray)   
    return new_time      
client=KafkaClient(hosts="192.168.118.163:9092,192.168.118.164:9092,192.168.118.165:9092")
topic=client.topics['nginxlog']
balanced_consumer=topic.get_balanced_consumer(
consumer_group='testgroup',
auto_commit_enable=True,
zookeeper_connect='nginx-kafka01:2181,nginx-kafka02:2181,nginx-kafka03:2181'
)
 
for message in balanced_consumer:
    if message is not None:
        try:
            line=json.loads(message.value.decode("utf-8"))
        except:
            pass
        log=line["message"]
        tmp_lst=log.split()
        ip=tmp_lst[0]
        dt=tmp_lst[4].replace("[","")
        bt=tmp_lst[10]
        dt=trans_time(dt)
        prov,isp=resolv_ip(ip)
        if prov and isp:
            prov_index,prov_dict=mysql_connect.get_index(prov,prov_dict,"prov_index","prov_name")
            print(prov_index,prov_dict)
            import_data(dt,prov,isp,bt)

连接mysql的脚本


[root@nginx-kafka01 opt]# cat mysql_connect.py 
import pymysql
 
db=pymysql.connect(host='192.168.118.157',
                   user='root',
                   password='123456',
                   database='sanchuang')
cursor=db.cursor()
 
def get_prov_isp(tablename):
    prov=cursor.execute(f"select * from {tablename}")
    data=cursor.fetchall()
    tmp_dict=dict(data)
    result_dict={v:k for k,v in tmp_dict.items()}
    return result_dict
 
prov_dict=get_prov_isp("prov_index")
isp_dict=get_prov_isp("isp_index")
 
def get_index(message,index_dict,tablename,field_name):
    if message in index_dict:
        return index_dict[message],index_dict
    else:
        cursor.execute(f'insert into {tablename}({field_name}) values("{message}")')
        db.commit()
        result_dict=get_prov_isp(tablename)
        return result_dict[message],result_dict

执行文件,查看数据库，成功


[root@nginx-kafka01 opt]# python3 python_consumer.py
 
root@sanchuang 10:20  mysql>select * from nginxlog;
+----+---------------------+------+----------+------+
| id | dt                  | prov | isp      | bd   |
+----+---------------------+------+----------+------+
|  1 | 2024-01-01 10:51:35 | XX   | 内网IP   |    0 |
|  2 | 2024-01-01 10:51:35 | XX   | 内网IP   |  555 |
|  3 | 2024-01-01 10:51:45 | XX   | 内网IP   |    0 |
|  4 | 2024-01-01 10:51:45 | XX   | 内网IP   |    0 |
|  5 | 2024-01-01 10:51:45 | XX   | 内网IP   |    0 |
+----+---------------------+------+----------+------+

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