[docker] use `--no-cache-dir` flag to `pip` in dockerfiles to save space
using "--no-cache-dir" flag in pip install ,make sure downloaded packages
by pip don't cached on system . This is a best practice which make sure
to fetch from repo instead of using local cached one . Further , in case
of Docker Containers , by restricting 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: SDC-3427
Signed-off-by: Pratik Raj <rajpratik71@gmail.com>
Change-Id: Ib72e4f0e0e4f777102e42f9c129405374adbfd9c
diff --git a/base_sdc-cqlsh/Dockerfile b/base_sdc-cqlsh/Dockerfile
index a16552a..f49986e 100644
--- a/base_sdc-cqlsh/Dockerfile
+++ b/base_sdc-cqlsh/Dockerfile
@@ -8,12 +8,12 @@
USER root
RUN apk add --no-cache py-pip && \
- pip install cqlsh==5.0.4 && \
+ pip install --no-cache-dir cqlsh==5.0.4 && \
mkdir ~/.cassandra/ && \
echo '[cql]' > ~/.cassandra/cqlshrc && \
echo 'version=3.4.4' >> ~/.cassandra/cqlshrc && \
set -ex && \
- pip install cqlsh && \
+ pip install --no-cache-dir cqlsh && \
apk add --no-cache \
bash \
build-base \