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Image footprint
optimization exercises:

1, original
dockerfile => (multicloud-broker-orig: 846MB)


Dockerfile:


FROM
python:2

2, rebase to
python:2-slim => (multicloud-broker-slim1: 410MB)


Dockerfile:


FROM
python:2-slim

apt-get install -y unzip gcc

pip install -r ...

apt-get remove -y unzip gcc



3, remove unused
packages => (multicloud-broker-slim2: 296MB)


Dockerfile:

FROM
python:2-slim

apt-get install -y unzip gcc

pip install -r ...

apt-get remove -y unzip gcc


/opt/multivimbroker/requirements.txt

#redis cache
#redis==2.10.5

#for access redis cache

#redisco==0.1.4

#django-redis-cache==0.13.1

#for call openstack api
#python-keystoneclient==3.6.0
#python-glanceclient==2.5.0

#python-neutronclient==6.0.0
#for unit test

#django-nose>=1.4.0
#coverage==4.2
#mock==2.0.0
#unittest_xml_reporting==1.12.0

#for pecan framework
#pecan>=1.2.1
#oslo.concurrency>=3.21.0
#oslo.config>=4.11.0
#oslo.service>=1.25.0
#eventlet>=0.20.0


 


4, Remove all unused utils package => (multicloud-broker-slim4: 194MB)
Dockerfile:

FROM python:2-slim
apt-get install -y wget unzip gcc
apt-get --purge remove -y wget unzip gcc
apt-get -y autoremove
 

multicloud-broker-slim4   latest              4452cb69a1be        6 minutes ago       194MB
multicloud-broker-slim2   latest              3c232d46c0fa        10 minutes ago      296MB


multicloud-broker-slim1   latest              5ba81358eb19        16 minutes ago      410MB


multicloud-broker-orig    latest              7601a4382bb0        10 days ago         846MB


python                    2-slim              f2ac6489d817        10 days ago         120MB