通过docker host对nginx映射路由，为每个路由调用不同的容器

Posted 2021-04-24

我正在尝试通过docker host映射路由，为每个路由调用不同的容器。

我有一个docker-compose有2个服务，而且服务是：5000端口。我的nginx.conf映射如下代码：

location /template-api {

        rewrite ^/template-api/?(.*) /$1 break;
        proxy_pass         http://template-api:5000;
        proxy_redirect     off;
        proxy_set_header   Host $host;
        proxy_set_header   X-Real-IP $remote_addr;
        proxy_set_header   X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header   X-Forwarded-Host $server_name;
    }

    location /api-plan  {
            rewrite ^/api-plan/?(.*) /$1 break;
            proxy_pass         http://api-plan:5000;
            proxy_redirect     off;
            proxy_set_header   Host $host;
            proxy_set_header   X-Real-IP $remote_addr;
            proxy_set_header   X-Forwarded-For $proxy_add_x_forwarded_for;
            proxy_set_header   X-Forwarded-Host $server_name;
    }

何时，我调用localhost：8000 / api-template / documentation，调用静态文件的路由或返回静态文件的路由。他在localhost：8000 / swaggerui中返回错误，找不到文件。错误的发生是因为swagger ui文件夹在localhost：8000 / api-template / swaggerui和localhost：8000 / api-plan / swaggerui

要修复该错误，添加到nginx，conf映射/路由：

server { 
listen 8000;

    access_log  /var/log/nginx/api.log;
    error_log   /var/log/nginx/api_error.log;
    server_name localhost;

    location / {
        proxy_pass         http://api-plan:5000;
        proxy_redirect     off;
        proxy_set_header   Host $host;
        proxy_set_header   X-Real-IP $remote_addr;
        proxy_set_header   X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header   X-Forwarded-Host $server_name;

    }

现在，当我调用localhost：8000 / api-plan / documentation时，结果成功，但是，当我调用localhost：8000 / template-api / documentation时，API会重定向到localhost：8000 / api-plan /导致错误的路由。

答案

试试这个：

server { 
    listen 8000;
    access_log  /var/log/nginx/api.log;
    error_log   /var/log/nginx/api_error.log;
    server_name localhost;

    location / {
        proxy_pass         http://$server_name:8080/swaggerUi;
        proxy_redirect     off;
        proxy_set_header   Host $host;
        proxy_set_header   X-Real-IP $remote_addr;
        proxy_set_header   X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header   X-Forwarded-Host $server_name;

    }
    location /template-api {

            rewrite ^/template-api/?(.*) /$1 break;
            proxy_pass         http://template-api:5000;
            proxy_redirect     off;
            proxy_set_header   Host $host;
            proxy_set_header   X-Real-IP $remote_addr;
            proxy_set_header   X-Forwarded-For $proxy_add_x_forwarded_for;
            proxy_set_header   X-Forwarded-Host $server_name;
    }

    location /api-plan  {
            rewrite ^/api-plan/?(.*) /$1 break;
            proxy_pass         http://api-plan:5000;
            proxy_redirect     off;
            proxy_set_header   Host $host;
            proxy_set_header   X-Real-IP $remote_addr;
            proxy_set_header   X-Forwarded-For $proxy_add_x_forwarded_for;
            proxy_set_header   X-Forwarded-Host $server_name;
    }
}

另一答案

您可以使用cookie来检测哪个后端应该收到/swaggerui请求。这是非常不安全的，因为用户可以编辑cookie并尝试访问其他主机，但由于它是本地测试环境，它只是起作用。

server { 
    listen 8000;
    access_log  /var/log/nginx/api.log;
    error_log   /var/log/nginx/api_error.log;
    server_name localhost;

    location ~ ^/swaggerui {
            resolver 127.0.0.11 ipv6=off;
            proxy_pass         http://$cookie_origin:5000;
            proxy_redirect     off;
            proxy_set_header   Host $host;
            proxy_set_header   X-Real-IP $remote_addr;
            proxy_set_header   X-Forwarded-For $proxy_add_x_forwarded_for;
            proxy_set_header   X-Forwarded-Host $server_name;

    }

    location /template-api {
            rewrite ^/template-api/?(.*) /$1 break;
            proxy_pass         http://template-api:5000;
            proxy_redirect     off;
            proxy_set_header   Host $host;
            proxy_set_header   X-Real-IP $remote_addr;
            proxy_set_header   X-Forwarded-For $proxy_add_x_forwarded_for;
            proxy_set_header   X-Forwarded-Host $server_name;
            add_header         Set-Cookie "origin=template-api;Domain=localhost;Path=/;Max-Age=100000";
    }

    location /api-plan  {
            rewrite ^/api-plan/?(.*) /$1 break;
            proxy_pass         http://api-plan:5000;
            proxy_redirect     off;
            proxy_set_header   Host $host;
            proxy_set_header   X-Real-IP $remote_addr;
            proxy_set_header   X-Forwarded-For $proxy_add_x_forwarded_for;
            proxy_set_header   X-Forwarded-Host $server_name;
            add_header         Set-Cookie "origin=plan-api;Domain=localhost;Path=/;Max-Age=100000";
    }
}