Nginx+keepalived+3 a site

A deployment environment:

master:192.168.127.129

slave:192.168.127.130

VIP:192.168.127.100 (Requires public IP in the real world)

There are three sites on each of the two servers, Web,h5,app

Nginx and keepalived installation procedure omitted

Two master configuration file settings

1 Master Load Balancer Configuration

[[email protected] vhosts]# vi ld.conf upstream www{      server 192.168.127.129:81;     server 192.168.127.130:81 ;ip_ hash;} server {     listen 81;     server_name   www.ihnhlife.com;     location / {        proxy_pass http://www/;       proxy_set_header host   $host;   }}## s.ihnhlife.com  app End upstream s{      Server 192.168.127.129:83 ;     server 192.168.127.130:83 ;ip_ hash;} server {     listen 83;     server_name   s.ihnhlife.com;     location / {        proxy_pass http://s/;       proxy_set_header host  $host;   }}upstream  h5{     server 192.168.127.129:82;     server  192.168.127.130:82;     ip_hash;} server {     listen 82;     server_name   m.ihnhlife.com;     location / {        proxy_pass http://h5/;       proxy_set_header host $ host;  }}

2 Master 3-site configuration files:

[[Email protected] vhosts]# cat m.ihnhlife.com.confserver{    listen  192.168.127.129:82;    server_name localhost;    index  index.html index.htm;    root /data/wwwroot/m.ihnhlife.com/;} [[Email protected] vhosts]# cat s.ihnhlife.com.confserver{    listen  192.168.127.129:83;    server_name localhost;    index  index.html index.htm;    root /data/wwwroot/www.ihnhlife.com/;  location / {            proxy_pass  Http://192.168.127.129:8080;            proxy_set_ header host   $host;             Proxy_set_header x-forwarded-for   $proxy _add_x_forwarded_for;            proxy_set _header x-real-ip   $remote _addr;}} server{    listen 192.168.127.129:81;    server_name  Localhost;    index index.html index.htm;    root /data /wwwroot/www.ihnhlife.com/;}

3 Master Three site root configuration (/data/wwwroot)

[Email protected] wwwroot]# lsm.ihnhlife.com s.ihnhlife.com www.ihnhlife.com[[email protected] m.ihnhlife.com]# cat in dex.html 129m.inhnlife.com[[email protected] s.ihnhlife.com]# cat index.html129 s.inhnlife.com[[email protected] www.ihnhlife.com]# Cat index.html 129 www.ihnhlife.com

4 Master keepalived Configuration

global_defs {   notification_email {     [email  protected]   }   notification_email_from [email protected]    smtp_server 127.0.0.1   smtp_connect_timeout 30   router_id  LTT}vrrp_script chk_nginx {   #检测nginx服务是否在运行有很多方式, such as process, script detection, etc.     script  "Killall -0 nginx"    #用shell命令检查nginx服务是否存在    interval 1    #时间间隔为1秒检测一次    weight -2    #当nginx的服务不存在了, -2   the current weight  fall 2       #测试失败的次数    rise 1        #测试成功的次数}vrrp_instance in_1 {    state master     interface eth0    virtual_router_id 22     Priority 100    advert_int 1    authentication {         auth_type PASS        auth_pass aaaa     }    virtual_ipaddress {         192.168.127.100    }   track_script {    chk_nginx     #引用上面的vrrp_script定义的脚本名称}}

5 Master Nginx main configuration file:

User nobody nobody;worker_processes 2;error_log /usr/local/nginx/logs/nginx_error.log  crit;pid /usr/local/nginx/logs/nginx.pid;worker_rlimit_nofile 51200;        #并发数设置events {    use epoll;    worker_connections  6000;    #单个后台worker The maximum number of concurrent links for  process processes}http{    include  Mime.types;    default_type application/octet-stream;    server_ names_hash_bucket_size 3526;    server_names_hash_max_size 4096;     log_format combined_realip  ' $remote _addr$http_x_forwarded_for[$time _local] '      (Log_format is the name of the log can be customized)      ' $host   ' $request _uri '   $status '       "$http _referer"   "$http _user_agent" ';    sendfile on;     tcp_nopush on;    keepalive_timeout 30;    client_header_timeout 3m;     client_body_timeout 3m;    send_timeout 3m;     connection_pool_size 256;    client_header_buffer_size 1k;     large_client_header_buffers 8 4k;    request_pool_size 4k;     output_buffers 4 32k;    postpone_output 1460;     client_max_body_size 10m;    client_body_buffer_size 256k;     client_body_temp_path /usr/local/nginx/client_body_temp;     proxy_temp_path /usr/local/nginx/proxy_temp;    fastcgi_temp_path /usr/local/ Nginx/fastcgi_temp;    fastcgi_intercept_errors on;    tcp_ Nodelay on;    gzip on;    gzip_min_length 1k;    gzip_buffers 4  8k;    gzip_comp_level 5;    gzip_http_version 1.1;     gzip_types text/plain application/x-javascript text/css text/htm  application/xml;    include vhosts/*.conf;

Three slave configuration files:

Slave In addition to the configuration of keepalvied, the rest are the same, copy one can (3 site content change, in order to facilitate identification)

Configuration of the keepalived:

Vim keepalived.conf #此配置文件是从Master服务器上copy过来, just a small change to the state BACKUP #把这里原先的MASTER改成BACKUPpriority #把这里原先的100改成99

Four-start service and test

Finally, the Nginx and keepalived services are launched on both hosts respectively.

1 Stop the Nginx service above the master to see if 3 sites can be accessed normally

2 Stop the Keepalvied service above the master to see if 3 sites can be accessed normally

This article is from the "Drifting Away" blog, make sure to keep this source http://825536458.blog.51cto.com/4417836/1846404

Nginx+keepalived+3 a site