Docker Exercise

FROM node:14.2.0-alpine3.10

EXPOSE 3000

RUN apk add --update tini

RUN mkdir -p /usr/src/app

WORKDIR /usr/src/app

COPY package.json package.json

RUN npm install

COPY . .

CMD ["tini", "--", "node", "./bin/www"]

cd into the directory that contains the above as Dockerfile, and run

docker build -t testnode

The above will be built as an image and tagged with testnode. After we make sure testnode can be run properly (by running docker container run --rm -p 80:3000 testnode), we change the tag name as follows:

docker tag testnode machingclee/testnode

and then

docker push machingclee/testnode

if we want.