Docker Exercise

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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

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1	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:

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1	docker tag testnode machingclee/testnode

and then

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1	docker push machingclee/testnode

if we want.