在本地服务器上暴露Docker容器

Question

I have a nodejs-mongo db app that is running inside docker containers. I can access it on localhost etc...

But now I would like to install/deploy these containers on a local server, so that I can access this application outside my network. Please note my server is Ubuntu 16.04.1 LTS (xenial)

Also I would like to access Db from outside, so that I can send data to the Db using custom script.

I am newbie in both networking and Docker. As a result I am struggling to understand what needs to be done. Any pointers would be appreciated

Here is the docker-compose.yml

version: "2"
services:
    web:
        build: .
        volumes: # Use this to mount app from local disk
            - ./:/usr/src/app
        ports:
            - "8080:8080"
            - "5858:5858"
        entrypoint: node --debug=5858 app.js
        links:
            - mongo
    mongo:
        image: mongo
        ports:
            - "27017:27017"

Here is my Dockerfile

FROM node:argon

# Create app directory
RUN mkdir -p /usr/src/app
WORKDIR /usr/src/app

# Install app dependencies
COPY package.json /usr/src/app/
RUN npm install

# Bundle app source
COPY . /usr/src/app

EXPOSE 8080
CMD [ "npm", "start" ]

Usual command that I give to start my containers docker-compose up --build -d

Here is docker ps result

"node --debug=5858 ap"   13 minutes ago      Up 13 minutes       0.0.0.0:5858->5858/tcp, 0.0.0.0:8080->8080/tcp   nodemongochart_web_1

"/entrypoint.sh mongo"   13 minutes ago      Up 13 minutes       0.0.0.0:27017->27017/tcp                         nodemongochart_mongo_1

Answer 1

If by local server, you mean your own machine at home, you will need to do something called "Port Forwarding". It's usually configurable in your router, and you'll be able to access your application via some kind of link like this :

http://you-personal-ip:8080

If you'll be using another host, not in your own network, they should provide you with an IP address, in that case, no need for port forwarding.