docker-compose.yml 中的绑定端口不起作用
[英]Bind port in docker-compose.yml doesn't work
问题描述
I have a NodeJS and React application made with a docker-compose.yml and I'm trying to put my application on port :8090 , but when I do a curl , I get this error
我有一个使用 docker-compose.yml 制作的 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 ，出现此错误
curl localhost:8090
curl: (56) Recv failure: Connection reset by peer
docker-compose.yml docker-compose.yml
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
If I go inside my container, I can access my website, but not if I'm outside如果我进入我的容器，我可以访问我的网站，但如果我在外面则不行
[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>
Because in my personal computer this works, I think it may be a error with the docker in the machine.因为在我的个人电脑上这是有效的，我认为可能是机器中的docker有错误。 The docker version is Docker version 19.03.13, build 4484c46d9d and I'm in a CentOS. Docker version 19.03.13, build 4484c46d9d版本是Docker version 19.03.13, build 4484c46d9d ，我在 CentOS 中。 I tried to restart the docker with service docker restart but doesn't work and I don't have ideia of what could be.我试图用service docker restart docker 但不起作用，我不知道可能是什么。
[EDIT 1] My index.js where I set up the port configuration and start the application [编辑 1]我在 index.js 中设置端口配置并启动应用程序
const express = require('express')
const app = express();
const path = require('path');
const cors = require('cors')
const { BACKEND_PORT } = require("./constants/index.js");
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('/api', (req, res) => {
res.sendFile(path.join(__dirname, 'views', 'index.html'));
});
app.use('/api/certificados', require('./routes/Certificados'));
app.use('/api/eventos', require('./routes/Eventos'));
app.listen(BACKEND_PORT, () => {
console.info(`Iniciando PETCertificados!`)
});
I tried to put "0.0.0.0" but this is already the default on NodeJS我试图把“0.0.0.0”，但这已经是NodeJS的默认值
[EDIT 2] Dockerfile [编辑 2] Dockerfile
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"]
1 个解决方案
解决方案1
0 2020-11-11 13:40:59
With a slightly modified Dockerfile / app.js, I am able to curl localhost:8090 and get a response.通过稍微修改 Dockerfile/app.js，我可以 curl localhost:8090 并得到响应。
Dockerfile: Dockerfile：
FROM node:14-alpine
WORKDIR /app
COPY package.json .
RUN npm install
COPY . .
EXPOSE 8080
CMD [ "node", "app.js" ]
App.js应用程序.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 stays the same. docker-compose.yml 保持不变。
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