Refining the structure for optimal image build

[YufengXin]

Please make the change and ask Mert's review

On Mert's branch:

https://github.com/mcevik0/sdx-lc/tree/validation

One of the examples can be the following line that I think is not optimal while building containers, but beyond that my main interest is the customization of the docker files (Dockerfile, docker-compose.yml) for specific sites.

sdx-lc/Dockerfile

Line 10 in 56e9439

COPY . /usr/src/app

Dockerfile
COPY . /usr/src/app
https://github.com/[atlanticwave-sdx/sdx-lc](https://github.com/atlanticwave-sdx/sdx-lc)|atlanticwave-sdx/sdx-lcatlanticwave-sdx/sdx-lc | Added by GitHub