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如何在nginx中对localhost上的3个端口进行负载均衡?

load-balancing port nginx

Khadijah Celestine · 技术社区 · 1 年前

我有3个端口加载不同的内容,我想从8080端口对它们进行负载平衡。我是nginx的新手,在nginx上提供内容时,我觉得有一些基本的东西我不理解。我的3个端口可以单独工作,但不能进行负载平衡。如何编辑我的配置以在这3个端口之间实现负载平衡?

upstream backend {
    server localhost:8081;
    server localhost:8082;
    server localhost:8083;
}

server {
    listen 8080;
    listen [::]:8080;

    server_name _;

    root /var/www/html;
    index index.html;

    location / {
        try_files $uri $uri/ =404;
    }
}

# Default server configuration
#
server {
    listen 8081 default_server;
    listen [::]:8081 default_server;

    root /var/www/n81;

    # Add index.php to the list if you are using PHP
    index index.html index.htm index.nginx-debian.html;

    server_name _;

    location / {
        # First attempt to serve request as file, then
        # as directory, then fall back to displaying a 404.
        try_files $uri $uri/ =404;
    }

}

server {
    listen 8082 default_server;
    listen [::]:8082 default_server;

    root /var/www/n82;

    # Add index.php to the list if you are using PHP
    index index.html index.htm index.nginx-debian.html;

    server_name _;

    location / {
        # First attempt to serve request as file, then
        # as directory, then fall back to displaying a 404.
        try_files $uri $uri/ =404;
    }

}

server {
    listen 8083 default_server;
    listen [::]:8083 default_server;

    root /var/www/n83;

    # Add index.php to the list if you are using PHP
    index index.html index.htm index.nginx-debian.html;

    server_name _;

    location / {
        # First attempt to serve request as file, then
        # as directory, then fall back to displaying a 404.
        try_files $uri $uri/ =404;
    }

}

1 回复 | 直到 1 年前

Reza Gharabaghi 1 年前

看看 Nginx 官方文件 here . 我认为你误解了负载平衡的概念。

我假设你有4个VPS Nginx 安装在每一个。其中一个用于负载平衡,另外三个用于提供文件。

你的期末考试 Nginx 配置文件可能如下所示:

负载平衡器

http {
    upstream myapp {
        server srv1.example.com;
        server srv2.example.com;
        server srv3.example.com;
    }

    server {
        listen 80;

        location / {
            proxy_pass http://myapp;
        }
    }
}

内容服务器1

http {
    server {
        server_name srv1.example.com;
        listen 80;

        location / {
            try_files $uri =404;
        }
    }
}

内容服务器2

http {
    server {
        server_name srv2.example.com;
        listen 80;

        location / {
            try_files $uri =404;
        }
    }
}

内容服务器3

http {
    server {
        server_name srv3.example.com;
        listen 80;

        location / {
            try_files $uri =404;
        }
    }
}