Dockerfile
FROM node:lts-slim
RUN npm install -g forever
WORKDIR /build-mon
ADD package.json /build-mon/package.json
RUN npm install
ADD app /build-mon/app
ADD README.md /build-mon/README.md
ONBUILD ADD config.json /build-mon/app/config.json
EXPOSE 3000
CMD [ "forever","--watch", "--watchDirectory", "/build-mon/app", "/build-mon/app/app.js"]