Using "--no-cache-dir" flag in pip install ,make sure dowloaded packages
by pip don't cached on system . This is a best practise which make sure
to fetch ftom repo instead of using local cached one . Further , in case
of Docker Containers , by restricing caching , we can reduce image size.
In term of stats , it depends upon the number of python packages
multiplied by their respective size . e.g for heavy packages with a lot
of dependencies it reduce a lot by don't caching pip packages.
Further , more detail information can be found at
https://medium.com/sciforce/strategies-of-docker-images-optimization-
2ca9cc5719b6
Issue-ID: APPC-1888
Signed-off-by: Pratik Raj <rajpratik71@gmail.com>
Change-Id: I41951d327bcf6bc381fc3d6e1789c33fd205d005
```bash
# Install Docker-Compose
apt-get install python-pip
-pip install docker-compose
+pip install --no-cache-dir docker-compose
# Login to Nexus Repo to pull Docker Images (this assumes that Nexus Certificate is already imported in the Host VM on /usr/local/share/ca-certificates/ path):
docker login <DOCKER_REGISTRY_REPO> # prompts for user credentials as a way to authenticate