docker - nginx无法将请求转发到在其他容器中运行的服务

Question

我想在我的微服务架构中使用Nginx反向代理作为APIGateway

问题:Nginx无法将proxy_pass传递给在另一个容器中运行的payment_service。但是，当我尝试从curl payment_service:3000容器内部进行nginx时，它可以工作。这样网络就可以了。

docker-compose.yml

version: '3'

services:

 payment_service:
   container_name: payment_service
   build: ./payment
   ports:
    - "3000:3000"
   volumes:
     - ./payment:/usr/app
   networks:
     - microservice-network

 api_gateway:
   image: nginx:latest
   container_name: api_gateway
   restart: always
   volumes:
     - ./default.conf:/etc/nginx/conf.d/default.conf
   ports:
     - 8080:8080
     - 443:443
   depends_on:
     - payment_service
   networks:
     - microservice-network

networks:
  microservice-network:
  driver: bridge

default.conf

upstream payment_server {
  server payment_service:3000 max_fails=10;
}

server {
  listen 8080;

  location /api/v1/payment {
    proxy_pass http://payment_server;
  }
}

当我使用http://localhost:3000直接访问支付服务时，它运行良好
但不要使用http://localhost:8080/api/v1/payment

Answer 1

根据the docs

If proxy_pass is specified without a URI, the request URI is passed to the server in the same form as sent by a client when the original request is processed, or the full normalized request URI is passed when processing the changed URI...

我不知道您的付款服务期待什么，但是我假设您正在尝试尝试根本方法。您需要在proxy_pass后面添加斜杠:

location /api/v1/payment {
    proxy_pass http://payment_server/;
}

否则，请求将作为

http://payment_service:3000/api/v1/payment