如何用Nginx反向代理将Express-Gateway "host“配置属性绑定到本地主机？

Question

特快-网关无法绑定到本地主机或127.0.0.1

直接调用端点的工作方式与预期相同：

 curl http://localhost:5000/ip 

 curl http://localhost:5010/erp

通过端口5000上的ExpressGateway访问所有端点的工作原理是预期的

 curl http://localhost:5000/ip 

 curl http://localhost:5000/api/erp

The issue

nginx反向代理正常工作，但在访问网关时返回失败的响应。

Cannot GET /api/erp

绑定主机: gateway.config.yml中http的本地主机没有任何效果。即使当我将主机更改为另一个IP地址和端口时，端口也反映了更改，但在快递网关控制台中，主机的IP地址保持不变为：：5000。

拜托，我怎么解决这个问题？

gateway.config.yml

http:
  port: 5000


admin:
  port: 9876
  host: localhost

apiEndpoints:
  api:
    host: localhost
    paths: '/ip'

  erp:
    host: localhost
    paths: ['/api/erp', '/api/erp/*']                    
                          
serviceEndpoints:
  httpbin:
    url: 'https://httpbin.org'

  erpService:
    url: 'http://localhost:5010'                     
                          
      
policies:
  - basic-auth
  - cors
  - expression
  - key-auth
  - log
  - oauth2
  - proxy
  - rate-limit

pipelines:
  default:
    apiEndpoints:
      - api
    policies:
    # Uncomment `key-auth:` when instructed to in the Getting Started guide.
    # - key-auth:
      - proxy:
          - action:
              serviceEndpoint: httpbin 
              changeOrigin: true

  erpPipeline:
    apiEndpoints:
      - erp
    policies:
    # Uncomment `key-auth:` when instructed to in the Getting Started guide.
    # - key-auth:
      - proxy:
          - action:
              serviceEndpoint: erpService
              changeOrigin: true

Nginx的反向代理

server {
listen 82;

location / {
        proxy_pass http://localhost:5010;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection 'upgrade';
        proxy_set_header Host $host;
        proxy_cache_bypass $http_upgrade;
        }
}


server {
listen 81;

location / {
        proxy_pass http://localhost:5000;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection 'upgrade';
        proxy_set_header Host $host;
        proxy_cache_bypass $http_upgrade;
        }
}

Answer 1

您需要指定gateway.config.*文件的主机名。

"http": {
    "hostname": "0.0.0.0",
    "port": 1234
  },

主机名也可以是localhost。

对于快递网关，如果未指定主机名，则服务器IP地址将用作默认主机名。

示例:您的服务器IP地址：123.456.789.12在启动网关gateway http server listening on 123.456.789.12:5000时将显示以下日志

这就是nginx不能调用localhost:5000的原因

当指定主机名时，日志应该是：info: gateway http server listening on 0.0.0.0:5000

Answer 2

在本部分中将本地主机更改为本地ip：

erpService:
    url: 'http://localhost:5010'

更改为示例：

erpService:
    url: 'http://192.168.0.3:5010'

并更改nginx配置端口82到5010。

server {
listen 5010;

location / {
        proxy_pass http://localhost:5010;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection 'upgrade';
        proxy_set_header Host $host;
        proxy_cache_bypass $http_upgrade;
        }
}

这个配置适合我。

Answer 3

您可以更改本地主机。这个解决方案适用于我：

http:
  port: 8080
admin:
  port: 9876
  host: localhost
apiEndpoints:
  api:
    host: "gateway.example.com"   =>>main domain for gateway
    paths: "/ip"
  panel:
    host: "gateway.example.com"  =>>main domain for gateway
    paths: "/panel/api/v1/*"
  account:
    host: "gateway.example.com"  =>>main domain for gateway
    paths: "/account/api/v1/*"
serviceEndpoints:
  httpbin:
    url: "https://httpbin.org"  
  panelService:
    urls:
      - "https://panel-api.example.com"   =>> panel domain 
  accountService:
    urls:
      - "https://account-api.example.com" =>> account domain