docker multi build example

Dockerfile

FROM node:10

# set the work directory
WORKDIR /usr/src/app

# copy package.json
COPY package*.json ./

# copy webapp folder
COPY WebApp/package*.json ./WebApp/

# RUN npm install for node js dependencies
RUN npm install \
   && cd WebApp \
   && npm install @angular/cli \
   && npm install

# Bundle app source
COPY . .

# builing Angular UI
RUN cd WebApp && npm run build

EXPOSE 3070

ENTRYPOINT ["node"]
CMD ["index.js"]