illustrate_squash.Dockerfile

## Dockerfile, with RUN uncombined
FROM ubuntu:16.04
ADD app.zip .         # App of 200 MB
RUN chmod 777 app.zip
RUN rm -rf app.zip

## Dockerfile, with RUN combined
FROM ubuntu:16.04
ADD app.zip .        # App of 200 MB
RUN chmod 777 app.zip && rm -rf app.zip