Building a docker image

building-docker-image.md

Building a docker image

Dockerfile sample

FROM node:latest
MAINTAINER Silvio Ramalho

ENV NODE_ENV=production
ENV PORT=3000

COPY . /var/www
WORKDIR /var/www
RUN npm install

ENTRYPOINT [ "npm", "start" ]
EXPOSE $PORT

Build

• -f file name Dockerfile (can has name as xxxx.dockerfile too)
• -t image name user/image_name
• . path to docker file

docker build -f Dockerfile -t silvioramalho/node .

The image is created and made available on the local host.

To show the image list:

docker images

Run container

docker run -d -p 8080:3000 silvioramalho/node

Check if running

docker ps

Send image to Docker Hub

docker login

docker push silvioramalho/node

Download the image

docker pull silvioramalho/node