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Docker machine port exposed problem (Windows host) [SOLVED]

Hi everyone,

I have a container with port 8080 exposed and I use docker-compose to build and run this container.
But when I try to access on localhost:8080 on my web browser I can’t access to the service listening on this port.

This my configurations :

docker-compose :

version: '2'
    build: .
      - "8080:8080"

Dockerfile :

FROM node:16.13.0-alpine

WORKDIR /usr/src/app

COPY package.json .
RUN npm install

COPY ./config ./config
COPY ./dist ./dist


CMD ["npm", "start"]

My application work perfectly outside any docker container, I can access to this on 8080 port.

I’ve also trying to find IP adress of container and access like this on web browser : But it doesn’t work…

I’ve used docker ps to see if my container has listening on port 8080 and it does.

6c684868b07a   financialtracker_financial-tracker   "docker-entrypoint.s…"   6 seconds ago   Up 4 seconds>8080/tcp   financialtracker_financial-tracker_1

(Sorry for my approximative english…)

Thanks for the help. :slight_smile:

What web server are you using for your application? And how did you configure that?

It’s probably only accepting connections for localhost, but: in a Docker container localhost in the container is not the same as localhost on the host that is running the container. Most often you’ll need your web server to listen on 0:0:0:0 to allow for external connections, rather than to listen to, say,

Thanks for reply.

I use Fastify framework, it manage his own server.
I check the documentation and you’re right, for security reason the binding adress is only ‘’ : Fastify listen binding docs. It seems works now.

Thanks for your help !

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