Javascript docker-compose.yml中的绑定端口不'；行不通
我有一个使用docker-compose.yml创建的NodeJS和React应用程序，我试图将我的应用程序放在端口Javascript docker-compose.yml中的绑定端口不'；行不通,javascript,node.js,docker,docker-compose,Javascript,Node.js,Docker,Docker Compose,我有一个使用docker-compose.yml创建的NodeJS和React应用程序，我试图将我的应用程序放在端口：8090，但是当我执行curl时，我得到了这个错误 curl localhost:8090 curl: (56) Recv failure: Connection reset by peer docker-compose.yml version: '3.1' services: web: build: context: . args:
：8090curlcurl localhost:8090
curl: (56) Recv failure: Connection reset by peer
version: '3.1'
services:
web:
build:
context: .
args:
# Variaveis do frontend
- BACKEND_URL=http://localhost:8090
restart: always
container_name: petcertificados
ports:
- "8090:8080"
volumes:
- ./certificados:/usr/app/server/certificados
[root@blastoise certificados]# docker exec -it petcertificados /bin/bash
root@a0d690c11c38:/usr/app/server# curl localhost:8080/api
<!DOCTYPE html>
<html>
<head>
<title>Certificados - Backend</title>
</head>
<body>
<h3>Certificados - BackEnd</h3>
</body>
FROM node:14.5.0 as frontend
WORKDIR /usr/app/frontend
COPY frontend/package*.json ./
RUN npm install -qy
COPY frontend/ ./
ARG BACKEND_URL
ENV REACT_APP_BACKEND_URL ${BACKEND_URL}
RUN npm run build
FROM node:14.5.0
WORKDIR /usr/app/
COPY --from=frontend /usr/app/frontend/build ./frontend/build
WORKDIR /usr/app/server/
COPY backend/package*.json ./
RUN npm install -qy
COPY backend/ ./
CMD ["npm", "start"]
通过稍微修改Dockerfile/app.js，我能够卷曲localhost:8090并获得响应 Dockerfile：
FROM node:14-alpine
WORKDIR /app
COPY package.json .
RUN npm install
COPY . .
EXPOSE 8080
CMD [ "node", "app.js" ]
const express = require('express')
const app = express();
const path = require('path');
const cors = require('cors')
const CLIENT_BUILD_PATH = path.join(__dirname, '../../frontend/build');
app.use(express.static(CLIENT_BUILD_PATH));
app.use(express.json());
app.use(cors());
app.use((req, res, next) => {
next();
})
app.get('/', (req, res) => {
res.send('Hello world!')
});
app.listen(8080, '0.0.0.0', () => {
console.info(`Iniciando PETCertificados!`)
});
docker-compose.yml保持不变。您是否可以编辑该问题，使其包含应用程序代码，至少设置网络侦听器？此问题的一个常见原因是应用程序绑定到容器专用localhost接口127.0.0.1，而它需要绑定到所有接口0.0.0.0。@DavidMaze是！我包括了这些信息！您的Dockerfile也会有所帮助here@JaredBeach就在那里！尝试将
EXPOSE 8080app.listen（8080，'0.0.0'，（）=>{console.info（“Iniciando PETCertificados！”））我仍然得到[root@blastoisecertificados]#curl localhost:8090 curl:（56）Recv故障：对等方重置连接
可能是代码中没有问题，可能是我的机器出了什么问题。如果物理机器的8080端口上还没有运行任何东西，请尝试映射到该端口，而不是8090。所以“8080:8080”。查看端口是否是问题所在。否则，尝试除去docker文件中除了后端（例如react应用程序）之外的所有内容，然后看看它是否有效
const express = require('express')
const app = express();
const path = require('path');
const cors = require('cors')
const CLIENT_BUILD_PATH = path.join(__dirname, '../../frontend/build');
app.use(express.static(CLIENT_BUILD_PATH));
app.use(express.json());
app.use(cors());
app.use((req, res, next) => {
next();
})
app.get('/', (req, res) => {
res.send('Hello world!')
});
app.listen(8080, '0.0.0.0', () => {
console.info(`Iniciando PETCertificados!`)
});