0
user-people-family-house-home

【Nginx】實作Nginx負載平衡(Nginx Load Balance)

Nginx 提供了以下三種 load balancing 方法round-robin:預設值,會將請留輪流平均分配到每台...

Posted by Roy on 2022-11-25 23:22:52 Views

Nginx 提供了以下三種 load balancing 方法

  1. round-robin:預設值,會將請留輪流平均分配到每台伺服器上
  2. lest-connected:會將請求分配到目前連接數最少的伺服器上
  3. ip-hash:利用 hash-function 來決定使用者要被分配到的伺服器,此方法可以達到同一個使用者 (IP address) 每次連結的伺服器都是相同的

實作環境

Load Balancer
IP:192.168.0.1
Web Server 1
IP:192.168.0.2
Web Server 2
IP:192.168.0.3

Web Server 設定

server {
    listen       80;
    server_name  {server_name};
    access_log /var/log/nginx/access.log;
    error_log /var/log/nginx/error.log;
    location / {
        root   /usr/share/nginx/html;
        index  index.html index.htm;
    }
}

Load Balancer 設定

upstream balancer {
    server 192.168.0.2 weight=3;
    server 192.168.0.3 weight=2;
}
server {
    listen       443 ssl;
    server_name  {server_name};
    access_log /var/log/nginx/access.log;
    error_log /var/log/nginx/error.log;
    ssl_certificate {ssl_certificate};
    ssl_certificate_key {ssl_certificate_key};
    ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
    location / {
        proxy_pass http://balancer;
        proxy_set_header   Host    $host;
        proxy_set_header   X-Real-IP   $remote_addr;
        proxy_set_header   X-Forwarded-For $proxy_add_x_forwarded_for;
    }
}

Host 設定

vi /etc/nginx/conf.d/default.conf
{server_name} 192.168.0.2
{server_name} 192.168.0.3

View Comments