Docker: connect ECONNREFUSED-CodePudding

I have docker running. There are no errors in the log file.

But when I try to execute a simple request via Postman

POST -> http://ip:3200/api/login

I get an error:

Error: connect ECONNREFUSED ip:3200

What did I do wrong?

docker ps:

CONTAINER_ID  84b2968aa424     
IMAGE         top-api:latest   
COMMAND       "docker-entrypoint.s"   
PORTS         0.0.0.0:3200->3200/tcp
NAMES         top-api

Dockerfile:

FROM node:12-alpine

WORKDIR /app

COPY package*.json ./

RUN npm install

RUN npm add sharp

COPY . .

COPY ./dist ./dist

CMD ["npm", "run", "start:dev"]

docker-compose.yml:

version: '3'
services:
  top.api:
    image: top-api:latest
    container_name: top-api
    restart: always
    ports: 
      - 3200:3200
    volumes:
      - ./.env.dev:/app/.env.dev

CodePudding user response：

From your host you have to connect to: localhost:3200. So when using postman, target localhost:3200.

CodePudding user response：

You're probably listening on 127.0.0.1, which is not publicly exposed (see https://pythonspeed.com/articles/docker-connection-refused/ for diagrams).

Try configuring your webserver to listen on 0.0.0.0.

CodePudding user response：

You can try to expose the port 3200 by adding the following line to your Dockerfile:

EXPOSE 3200