FROM node:12.16.3
WORKDIR /code
ARG PORT=80
ENV PORT $PORT
COPY package.json /code/package.json
RUN npm install
COPY . /code
CMD [ "node", "src/server.js" ]
Example Dockerfile for Node.js
FROM node:12.16.3
WORKDIR /code
ARG PORT=80
ENV PORT $PORT
COPY package.json /code/package.json
RUN npm install
COPY . /code
CMD [ "node", "src/server.js" ]