Keepalived + Nginx + Fastdfs

Keepalived+Nginx+Fastdfs

集群环境简介

  • 操作系统:CentOS Linux release 7.6.1810
  • Fastdfs版本:fastdfs-6.06.tar.gz
  • Nginx版本:nginx-1.18.0.tar.gz
  • 高可用版本:keepalived-1.4.5.tar.gz
  • 其余依赖包版本
    • libfastcommon-1.0.43.tar.gz（是从FastDFS和FastDHT中提取出来的公共C函数库）
    • fastdfs-nginx-module-1.22.tar.gz
    • ngx_cache_purge-2.3.tar.gz

网络拓扑

t1

跟踪服务集群规划

节点名称 IP地址 端口 主机名称 Nginx端口
跟踪节点1 10.1.1.4 22122 tracker-group1 80
跟踪节点2 10.1.1.5 22122 tracker-group2 80

存储服务集群规划

节点名称 IP地址 端口 主机名称 Nginx端口
存储节点组1-1 10.1.1.6 22122 storage-group1-1 80
存储节点组1-2 10.1.1.7 22122 storage-group1-2 80
存储节点组2-1 10.1.1.8 22122 storage-group2-1 80
存储节点组2-2 10.1.1.9 22122 storage-group2-2 80

Keepalived高可用规划

节点名称 IP地址 主机名称 Nginx端口 默认主从
VIP 10.1.1.100 虚拟IP
MASTER 10.1.1.2 master-proxy 80 MASTER
BACKUP 10.1.1.3 slave-proxy 80 BACKUP

免密登录

#　开启秘钥
ssh-keygen

#　所有节点依次执行
ssh-copy-id root@10.1.1.3
ssh-copy-id root@10.1.1.4
ssh-copy-id root@10.1.1.5
ssh-copy-id root@10.1.1.6
ssh-copy-id root@10.1.1.7
ssh-copy-id root@10.1.1.8
ssh-copy-id root@10.1.1.9

依赖环境

 #　所有设备都执行该命令
 yum install -y gcc gcc-c++ make automake autoconf libtool pcre pcre-devel zlib zlib-devel openssl openssl-devel

Fastdfs安装

安装libfastcommon

下载地址

# 所有fastdfs设备都执行此操作　本文只显示一次　其余设备操作一样
wget https://github.com/happyfish100/libfastcommon/archive/V1.0.43.tar.gz
    
tar -zxvf V1.0.43.tar.gz -C /usr/local/src/

cd /usr/local/src/libfastcommon-1.0.43

./make.sh && ./make.sh install

#　通过执行改命令检查是否安装成功
ls /usr/lib64/ | grep libfastcommon 

ls /usr/lib/ | grep libfastcommon

image-20210320174453500

安装Fastdfs

下载地址

# 所有fastdfs设备都执行此操作　本文只显示一次　其余设备操作一样
wget https://github.com/happyfish100/fastdfs/archive/V6.06.tar.gz

tar -zxvf V6.06.tar.gz -C /usr/local/src

cd /usr/local/src/fastdfs-6.06

./make.sh && ./make.sh install

#　检查是否安装成功
ls /usr/bin | grep fdfs

image-20210320174811766

Fastdfs搭建集群

Tracker跟踪器集群配置

配置跟踪器tracker(10.1.1.4,10.1.1.5)

修改配置文件

官方配置文档

# 创建tracker的数据与日志目录
mkdir -p /var/fdfs/tracker

cd /etc/fdfs/
#　备份配置文件
cp tracker.conf.sample tracker.conf	

#　由于有多个存储组　此处以轮循的方式进行存储
vim tracker.conf
	#　tracker数据与日志目录
	base_path=/var/fdfs/tracker		
    #　轮循进行数据存储
	store_lookup = 0	
    #　指定存储组为组一
	store_group = group1	

# tracker2配置同理 但是要将存储组改成store_group = group2

store_lookup

  • 当值为0的时候以轮循方式在多个组中进行文件存储
  • 当值为1的时候上传到指定的组　例如组一
  • 当值为 2的时候负载均衡选择剩余空间最大的组进行上传

启动tracker

#　启动tracker
 /etc/init.d/fdfs_trackerd start
    
 # 查看服务是否启动
 ps -aux | grep fdfs

image-202103201815061573

# 第一次启动成功后，可以使用系统命令启动、重启、停止

systemctl start fdfs_trackerd  

systemctl restart fdfs_trackerd

systemctl stop fdfs_trackerd

systemctl status fdfs_tracked

image-20210320182039445

配置开机自启

echo /etc/init.d/fdfs_trackerd start >> /etc/rc.d/rc.local

chmod +x /etc/rc.d/rc.local

Storage存储器集群配置

配置Fastdfs存储(10.1.1.6,10.1.1.7,10.1.1.8,10.1.1.9)

修改配置文件

#　创建数据与日志存储目录
mkdir -p /var/fdfs/storage

cd /etc/fdfs/
#　备份配置文件
cp storage.conf.sample storage.conf

vim client.conf
	group_name=group1  # 第一组为组一 第二组为组二
	base_path=/var/fdfs/storage         #设置storage的日志目录
	store_path0=/var/fdfs/storage       #存储路径
	
	#　配置tracker
	tracker_server = 10.1.1.4:22122
	tracker_server = 10.1.1.5:22122

#　其余存储设备配置同理　但是在组二中需要修改group_name=group2

启动tracker

# 启动tracker
/etc/init.d/fdfs_storaged start

# 查看进程
ps -aux | grep fdfs

image-20210320183832655

配置开机自启

echo /etc/init.d/fdfs_storaged start >> /etc/rc.d/rc.local && chmod +x /etc/rc.d/rc.local

客户端配置

修改tracker服务器充当客户端

# 配置文件备份 
cp /etc/fdfs/client.conf.sample client.conf

vim client.conf
	base_path=/var/fdfs/tracker
	tracker_server=10.1.1.4:22122
	tracker_server=10.1.1.5:22122
# 上传文件名
fdfs_upload_file /etc/fdfs/client.conf  +　需要上传的文件名称

image-20210320185143734

  • 不同组之间是独立的数据不能共享
  • 同组之间数据是共享的

查看集群状态

#　在任意存储节点执行如下命令
fdfs_monitor /etc/fdfs/storage.conf list | grep ACTIVE

image-20210320184223949

Nginx搭建集群

存储节点安装Nginx

在所有的存储节点进行安装配置 Nginx

安装fastdfs-nginx-module

下载地址

wget https://codeload.github.com/happyfish100/fastdfs-nginx-module/tar.gz/V1.22

tar -zxvf /opt/fastdfs-nginx-module-1.22.tar.gz -C /usr/local/src

安装Nginx

下载地址

wget https://nginx.org/download/nginx-1.18.0.tar.gz

tar -zxvf nginx-1.18.0.tar.gz -C /usr/local/src/

cd /usr/local/src/nginx-1.18.0
 
 ./configure --prefix=/usr/local/nginx --add-module=/usr/local/src/fastdfs-nginx-module-1.22/src
 
 make && make install

配置环境变量

vim /etc/profile

	#　尾部追加
    NGINX_HOME=/usr/local/nginx

   　export PATH=${NGINX_HOME}/sbin:${PATH} 
source /etc/profile

image-20210320190748685

配置fastdfs-nginx-module

#　复制配置文件
cp /usr/local/src/fastdfs-nginx-module-1.22/src/mod_fastdfs.conf /etc/fdfs/

#　配置文件
connect_timeout=10  
base_path=/tmp
tracker_server=10.1.1.4:22122
tracker_server=10.1.1.5:22122
storage_server_port=23000
group_name=group1	#　第一组为group1　第二组为group2
url_have_group_name = true
store_path0=/var/fdfs/storage
group_count = 2
[group1]
group_name=group1
storage_server_port=23000
store_path_count=1
store_path0=/var/fdfs/storage
[group2]
group_name=group2
storage_server_port=23000
store_path_count=1
store_path0=/var/fdfs/storage

复制http文件

# 复制FastDFS部分配置文件到/etc/fdfs目录

cd /usr/local/src/fastdfs-6.06/conf

cp http.conf mime.types /etc/fdfs/

建立软链接存储数据

ln -s /var/fdfs/storage/data/ /var/fdfs/storage/data/M00

修改Nginx配置文件

cd /usr/local/nginx/conf/

cp nginx.conf nginx.conf.bak	#　备份配置文件

#　修改第二行的用户
user nobody ---> user root

#　server内容
server {
    listen       8888;	#　与fastdfs内容对应
    server_name  localhost;
    location ~/group([0-9]) {
            root  /fastdfs/storage/data;
            ngx_fastdfs_module;
    }
}

启动Nginx

nginx

ps -aux | grep nginx

image-20210320192505629

配置开机自启

echo /usr/local/nginx/sbin/nginx >> /etc/rc.d/rc.local

测试通过存储节点访问数据

echo "test fastdfs storage" > test.txt	#　添加测试文件

fdfs_upload_file /etc/fdfs/client.conf test.txt		#　上传文件 获取文件ID

#　发起get请求测试
curl 10.1.1.6:8888/group1/M00/00/00/CgEBBmBV3liABTR0AAAAFU-811g283.txt

curl 10.1.1.6:8888/group2/M00/00/00/CgEBCGBV3lqARu4XAAAAFU-811g709.txt

curl 10.1.1.9:8888/group1/M00/00/00/CgEBBmBV3liABTR0AAAAFU-811g283.txt

curl 10.1.1.9:8888/group2/M00/00/00/CgEBCGBV3lqARu4XAAAAFU-811g709.txt

image-20210320194019695

跟踪节点安装Nginx

在跟踪集群节点上安装Nginx(10.1.1.4,10.1.1.5)

下载ngx_cache_purge 缓存插件

下载地址

wget https://codeload.github.com/FRiCKLE/ngx_cache_purge/tar.gz/2.3

#　后面编译nginx需要使用
tar -zxvf ngx_cache_purge-2.3.tar.gz -C /usr/local/src/

安装Nginx

tar -zxvf nginx-1.18.0.tar.gz -C /usr/local/src/

cd /usr/local/src/nginx-1.18.0
./configure --prefix=/usr/local/nginx --add-module=/usr/local/src/ngx_cache_purge-2.3
make && make install

配置环境变量

vim /etc/profile

	#　尾部追加
    NGINX_HOME=/usr/local/nginx

   　export PATH=${NGINX_HOME}/sbin:${PATH} 
source /etc/profile

修改配置文件

cd /usr/local/nginx/conf/ 

# 备份配置文件
cp nginx.conf nginx.conf.bak

user root;

http {
  
  #gzip on;
  
  #配置缓存
  server_names_hash_bucket_size 128;
  client_header_buffer_size 32k;
  large_client_header_buffers 4 32k;
  client_max_body_size 300m;

  proxy_redirect off;
  proxy_set_header Host $http_host;
  proxy_set_header X-Real-IP $remote_addr;
  proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
  proxy_connect_timeout 90;
  proxy_send_timeout 90;
  proxy_read_timeout 90;
  proxy_buffer_size 16k;
  proxy_buffers 4 64k;
  proxy_busy_buffers_size 128k;
  proxy_temp_file_write_size 128k;
    
  #配置缓存存储路径、存储方式、分配内存大小、磁盘最大空间、缓存期限
  proxy_cache_path /fastdfs/cache/nginx/proxy_cache levels=1:2
  keys_zone=http-cache:200m max_size=1g inactive=30d;
  proxy_temp_path /fastdfs/cache/nginx/proxy_cache/tmp;
    
  #配置存储服务集群 group1 负载均衡服务器
  upstream fdfs_group1 {
  	server 10.1.1.6:8888 weight=1 max_fails=2 fail_timeout=30s;
    server 10.1.1.7:8888 weight=1 max_fails=2 fail_timeout=30s;
  }
    
  #配置存储服务集群 group2 负载均衡服务器
  upstream fdfs_group2 {
  	server 10.1.1.8:8888 weight=1 max_fails=2 fail_timeout=30s;
    server 10.1.1.9:8888 weight=1 max_fails=2 fail_timeout=30s;
  }
 
    
  server {
    listen    80;
    server_name localhost;

	
    #配置存储服务集群 group1 的负载均衡参数
    location /group1/M00 {
    	proxy_next_upstream http_502 http_504 error timeout invalid_header;
        proxy_cache http-cache;
        proxy_cache_valid  200 304 12h;
        proxy_cache_key $uri$is_args$args;
        proxy_pass http://fdfs_group1;
        expires 30d;
    }
      
    #配置存储服务集群 group2 的负载均衡参数
    location /group2/M00 {
        proxy_next_upstream http_502 http_504 error timeout invalid_header;
        proxy_cache http-cache;
        proxy_cache_valid  200 304 12h;
        proxy_cache_key $uri$is_args$args;
        proxy_pass http://fdfs_group2;
        expires 30d;
    }

	#配置清除缓存的访问权限
    location ~/purge(/.*) {
    	allow 127.0.0.1;
        allow 10.1.1.0/24;
        deny all;
        proxy_cache_purge http-cache $1$is_args$args;
    }    
        
  }
}

配置缓存文件夹

mkdir -p /fastdfs/cache/nginx/proxy_cache

mkdir -p /fastdfs/cache/nginx/proxy_cache/tmp

配置开机自启

echo /usr/local/nginx/sbin/nginx >> /etc/rc.d/rc.local && chmod +x /etc/rc.d/rc.local

测试通过追踪节点访问数据

curl 10.1.1.4/group1/M00/00/00/CgEBBmBV3liABTR0AAAAFU-811g283.txt

curl 10.1.1.4/group2/M00/00/00/CgEBCGBV3lqARu4XAAAAFU-811g709.txt


curl 10.1.1.5/group1/M00/00/00/CgEBBmBV3liABTR0AAAAFU-811g283.txt

curl 10.1.1.5/group2/M00/00/00/CgEBCGBV3lqARu4XAAAAFU-811g709.txt

image-20210320203643983

Lvs+Keepalived安装

Lvs安装

#　安装Lvs
yum install ipvsadm

网络转发

后端服务节点配置网络转发(10.1.1.4,10.1.1.5)

echo 1 > /proc/sys/net/ipv4/conf/lo/arp_ignore

echo 2 > /proc/sys/net/ipv4/conf/lo/arp_announce

echo 1 > /proc/sys/net/ipv4/conf/all/arp_ignore

echo 2 > /proc/sys/net/ipv4/conf/all/arp_announce

ifconfig lo:0 10.1.1.100 broadcast 10.1.1.100 netmask 255.255.255.255 up
echo route add -host 10.1.1.100 dev lo >> /etc/rc.local

# 永久添加
route add -host 10.1.1.100 dev lo:0

keepalived

安装

下载地址

cd /opt

wget https://www.keepalived.org/software/keepalived-1.4.5.tar.gz

tar -zxvf keepalived-1.4.5.tar.gz

mv /opt/keepalived-1.4.5 /usr/local/src/

cd /usr/local/src/keepalived-1.4.5
./configure --prefix=/usr/local/keepalived
make && make install

配置

### 安装完成，复制配置文件模板到/etc/keepalived
mkdir /etc/keepalived
cp /usr/local/src/keepalived-1.4.5/keepalived/etc/keepalived/keepalived.conf /etc/keepalived/
cp /usr/local/src/keepalived-1.4.5/keepalived/etc/sysconfig/keepalived /etc/sysconfig/

### 复制服务启动脚本
cp /usr/local/src/keepalived-1.4.5/keepalived/etc/init.d/keepalived /etc/init.d/

ln -snf /usr/local/keepalived/sbin/keepalived /usr/sbin/keepalived

#　赋予执行权限
chmod +x /etc/init.d/keepalived

修改启动服务文件

vim /lib/systemd/system/keepalived.service
	### 将下面两行
    EnvironmentFile=-/usr/local/keepalived/etc/sysconfig/keepalived
    ExecStart=/usr/local/keepalived/sbin/keepalived $KEEPALIVED_OPTIONS
    ### 修改为
    EnvironmentFile=/etc/sysconfig/keepalived
    ExecStart=/sbin/keepalived $KEEPALIVED_OPTIONS
    
#　加载文件
systemctl daemon-reload

配置日志文件

vim /etc/sysconfig/keepalived
	KEEPALIVED_OPTIONS="-D -d -S 0" ## -S 是syslog的facility,0表示放在local 0

vim /etc/rsyslog.conf
	local0.*                       /var/log/keepalived.log

#　重启日志
systemctl restart rsyslog

启动服务

systemctl enable keepalived.service

systemctl start keepalived 

systemctl status keepalived 

systemctl restart keepalived

image-20210320211221320

配置master节点

cd /etc/keepalived/

cp keepalived.conf keepalived.conf.bak

global_defs {
   router_id fdfs-proxy1
}
 
vrrp_script chk_nginx {
   #检查nginx的脚本,需要我们自己定义，下面讲到
   script "/etc/keepalived/nginx_check.sh"            
   #检查时间间隔,这个时间不要超过脚本的执行时间，否则会报“Track script chk_nginx is being timed out, expect idle - skipping run”
   interval 2                                         
   #脚本执行失败则优先级减20
   weight -20
   #表示两次失败才算失败
   fall 2　　　　　　　　　　　　　　　　　　　　　　　　 
}

#配置实例
    vrrp_instance apache {
        state MASTER    
        interface ens34         #生成VIP地址的接口
        virtual_router_id 10      #主、备机的 virtual_router_id 必须相同，取值 0-255
        priority 150             #主机的优先级,备份机改为 50，主机优先级一定要大于备机
        advert_int 1            #主备之间的通告间隔秒数
        authentication {
            auth_type PASS       #设置验证类型，主要有 PASS 和 AH 两种
            auth_pass root      
        }

        virtual_ipaddress {
           10.1.1.100
        }
    }

    ## 虚拟服务配置
    virtual_server 	 10.1.1.100 80 {   
        delay_loop 6       #Keepalived 多长时间监测一次 RS
        lb_algo rr        #lvs 调度算法,这里使用轮叫
        lb_kind DR        #LVS 是用 DR 模式
        #persistence_timeout 50         #同一 IP 50 秒内的请求都发到同个 real server 超过50S 发到另外一个节点
        protocol TCP     #指定转发协议类型，有 tcp 和 udp 两种

        real_server 10.1.1.4 80 {    #配置服务节点
            weight 1      ##默认为1，0为失效
        TCP_CHECK{       ##TCP方式的健康检查，realserve 的状态检测设置部分，单位是秒
                connect_timeout 3     #10 秒无响应超时
                retry 3               #重试次数
                delay_before_retry 3    #重试间隔
                connect_port 80		# 连接端口
            }
        }

        real_server 10.1.1.5 80 {
            weight 1
        TCP_CHECK{
                connect_timeout 3
                retry 3
                delay_before_retry 3
                connect_port 80
            }
        }
    }
    

# 配置检测脚本
vim /etc/keepalived/nginx_check.sh

    #!/bin/sh
    A=`ps -C nginx --no-header |wc -l`
    if [ $A -eq 0 ]
    then
      ### 这种方式启动nginx，使用 systemctl status nginx 查看状态非 active
      #/usr/local/nginx/sbin/nginx 
      systemctl start nginx
      sleep 1
      A2=`ps -C nginx --no-header |wc -l`
      if [ $A2 -eq 0 ]
      then
        exit 1
      fi
    fi
    
 chmod +x nginx_check.sh
 
  #　重启服务
 systemctl start keepalived

配置backup节点

cd /etc/keepalived/

cp keepalived.conf keepalived.conf.bak

global_defs {
   router_id fdfs-proxy2
}
 
vrrp_script chk_nginx {
   script "/etc/keepalived/nginx_check.sh"            
   interval 2 
}
 

#配置实例
    vrrp_instance apache {
        state BACKUP    
        interface ens34         #生成VIP地址的接口
        virtual_router_id 10      #主、备机的 virtual_router_id 必须相同，取值 0-255
        priority 120             #主机的优先级,备份机改为 50，主机优先级一定要大于备机
        advert_int 1            #主备之间的通告间隔秒数
        authentication {
            auth_type PASS       #设置验证类型，主要有 PASS 和 AH 两种
            auth_pass root      
        }

        virtual_ipaddress {
           10.1.1.100
        }
    }

    ## 虚拟服务配置
    virtual_server 	 10.1.1.100 80 {   
        delay_loop 6       #Keepalived 多长时间监测一次 RS
        lb_algo rr        #lvs 调度算法,这里使用轮叫
        lb_kind DR        #LVS 是用 DR 模式
        #persistence_timeout 50         #同一 IP 50 秒内的请求都发到同个 real server 超过50S 发到另外一个节点
        protocol TCP     #指定转发协议类型，有 tcp 和 udp 两种

        real_server 10.1.1.4 80 {    #配置服务节点
            weight 1      ##默认为1，0为失效
        TCP_CHECK{       ##TCP方式的健康检查，realserve 的状态检测设置部分，单位是秒
                connect_timeout 3     #10 秒无响应超时
                retry 3               #重试次数
                delay_before_retry 3    #重试间隔
                connect_port 80		# 连接端口
            }
        }

        real_server 10.1.1.5 80 {
            weight 1
        TCP_CHECK{
                connect_timeout 3
                retry 3
                delay_before_retry 3
                connect_port 80
            }
        }
    }
   
 # nginx检测脚本
 vim /etc/keepalived/nginx_check.sh

    #!/bin/sh
    A=`ps -C nginx --no-header |wc -l`
    if [ $A -eq 0 ]
    then
      ### 这种方式启动nginx，使用 systemctl status nginx 查看状态非 active
      #/usr/local/nginx/sbin/nginx 
      systemctl start nginx
      sleep 1
      A2=`ps -C nginx --no-header |wc -l`
      if [ $A2 -eq 0 ]
      then
        systemctl stop keepalived
      fi
    fi
    
 chmod +x /etc/keepalived/nginx_check.sh
 
   #　重启服务
  systemctl start keepalived

image-20210320213444291

posted @ 2021-03-23 14:37  SR丶  阅读(88)  评论(0)  编辑  收藏  举报