Dockerfile
FROM node:lts-alpine3.17
# Create app directory
# this is the location where you will be inside the container
WORKDIR /src/app
# Install app dependencies
# A wildcard is used to ensure both package.json AND package-lock.json are copied
# where available (npm@5+)
# copying packages first helps take advantage of docker layers
COPY package*.json ./
USER node
RUN npm install
# If you are building your code for production
# RUN npm ci --only=production
# Bundle app source
COPY . .
# Make this port accessible from outside the container
# Necessary for your browser to send HTTP requests to your Node app
EXPOSE 8080
# Command to run when the container is ready
# Separate arguments as separate values in the array
CMD [ "npm", "run", "start"]