Nginx 错误失败(111:连接被拒绝)同时连接到上游,docker-compose nodejs
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【中文标题】Nginx 错误失败(111:连接被拒绝)同时连接到上游,docker-compose nodejs【英文标题】:Nginx error failed (111: Connection refused) while connecting to upstream, docker-compose nodejs 【发布时间】:2020-07-29 01:33:54 【问题描述】:我正在尝试构建多个服务并使用 nginx 反向代理它们。
所以 service1 是:
http://api/service1 (nginx) => 码头工人 (http://service1:4001/) => 快递(http://localhost:4000)
service2 是:
http://api/service2 (nginx) => 码头工人 (http://service2:4002/) => 快递(http://localhost:4000)
这是我第一次从头开始尝试使用 nginx,但我被卡住了,我无法从 http://localhost:80/service1 或 http://api/service1 访问我的任何服务。您认为这是面向开发和生产的微服务架构的良好开端吗?
我也对我的 docker compose 内部网络有疑问,放置该网络或让默认 docker 网络准确吗?
(所有容器工作正常);
docker-compose.yml:
version: '3'
services:
mongo:
container_name: mongo
image: mongo:latest
ports:
- '27017:27017'
volumes:
- './mongo/db:/data/db'
nginx:
build: ./nginx
container_name: nginx
links:
- service1
- service2
ports:
- '80:80'
- '443:443'
depends_on:
- mongo
networks:
- api
service1:
build: ./services/service1
container_name: service1
links:
- 'mongo:mongo'
volumes:
- './services/service1:/src/'
ports:
- '4001:4000'
command: yarn dev
networks:
- api
service2:
build: ./services/service2
container_name: service2
links:
- 'mongo:mongo'
volumes:
- './services/service2:/src/'
ports:
- '4002:4000'
command: yarn dev
networks:
- api
networks:
api:
nginx.conf:
worker_processes 1 ;
events
worker_connections 1024;
http
server
listen 80;
server_name api;
charset utf-8;
location /service1
proxy_pass http://service1:4001;
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;
location /service2
proxy_pass http://service2:4002;
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;
服务 DockerFile:
FROM node:latest
RUN mkdir /src
WORKDIR /src
COPY package.json /src/package.json
RUN npm install
COPY . /src/
EXPOSE 4000
nginx Docker 文件:
FROM nginx
COPY nginx.conf /etc/nginx/nginx.conf
我正在尝试访问 http://localhost:80/service1/ 这通常会让我访问 http://service1:4001
但我收到此错误:
[错误] 7#7: *2 connect() 失败(111:连接 拒绝)同时连接到上游,客户端:172.23.0.1,服务器:
172.23.0.1 - - [15/Apr/2020:22:01:44 +0000] "GET / HTTP/1.1" 502 157 "-" "PostmanRuntime/7.24.1" bts-api,请求:“GET / HTTP/1.1”,上游: “http://172.23.0.2:4001/”,主机:“localhost:80”
我也在尝试访问 http://api/service1/(在 nginx.conf 中定义为 server_name),但我没有任何响应或 ping。
【问题讨论】:
您的后端服务都在侦听容器内的 4000 端口,您的 nginx 配置需要使用该端口来联系它们。发布的ports:
无关紧要(实际上也没有必要)。
【参考方案1】:
最后是因为我的容器名称是 $(project)-$(container-name) 所以在 nginx 中我替换了 accounts => $(project)-accounts
【讨论】:
【参考方案2】:请在您的 nginx.conf 文件中添加 proxy_redirect 参数和容器访问端口,如下所示。
server
listen 80;
server_name api;
charset utf-8;
location /service1
proxy_pass http://service1:4000;
proxy_redirect http://service1:4000: http://www.api/service1;
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;
location /service2
proxy_pass http://service2:4000;
proxy_redirect http://service2:4000: http://www.api/service2;
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;
【讨论】:
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