Dockerfile
FROM node:8-alpine
# Create app directory
WORKDIR /usr/src/app
RUN apk add --no-cache libstdc++ bash ca-certificates git
# Install app dependencies
# A wildcard is used to ensure both package.json AND package-lock.json are copied
# where available (npm@5+)
COPY package*.json ./
# really only doing this to make sure all will work when I run tests
RUN npm install
# If you are building your code for production
# RUN npm ci --only=production
# Bundle app source
COPY . .
CMD [ "npm", "start" ]