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
Signed-off-by: Pratik Raj <rajpratik71@gmail.com>
Change-Id: I690a12f6e9cdedb2ced7b2ed1c96fac904bac3a8
Reviewed-on: https://gerrit.opnfv.org/gerrit/c/kuberef/+/71763
Tested-by: jenkins-ci <jenkins-opnfv-ci@opnfv.org>
Reviewed-by: Michael Pedersen <michaelx.pedersen@intel.com>
Reviewed-by: Cedric Ollivier <cedric.ollivier@orange.com>
Reviewed-by: Rihab Banday <rihab.banday@ericsson.com>
RUN yum -y update && \
yum -y install git epel-release python36 python-netaddr && \
yum -y install python-pip && \
- pip install pip==9.0.3 && \
- pip install ansible==2.9.6 jmespath && \
- pip install jinja2 --upgrade
+ pip install --no-cache-dir pip==9.0.3 && \
+ pip install --no-cache-dir ansible==2.9.6 jmespath && \
+ pip install --no-cache-dir jinja2 --upgrade
CMD ["bash"]