Minimize container image

Rebase image on alpine

Change-Id: I923c0792783b551bf623f754a2aed4bf1a765f45
Issue-ID: INT-1045
Signed-off-by: Dmitry Puzikov <dmitry.puzikov@tieto.com>

3 files changed, 5 insertions, 9 deletions

diff --git a/kubernetes/readiness/docker/init/Dockerfile b/kubernetes/readiness/docker/init/Dockerfile
index 7214e04174..b060915354 100644
--- a/kubernetes/readiness/docker/init/Dockerfile
+++ b/kubernetes/readiness/docker/init/Dockerfile
@@ -1,17 +1,12 @@
-from ubuntu:16.04
+FROM python:2-alpine
 
 ENV no_proxy "localhost,127.0.0.1,.cluster.local,$KUBERNETES_SERVICE_HOST"
 # Setup Corporate proxy
 ENV https_proxy ${HTTPS_PROXY}
 ENV http_proxy ${HTTP_PROXY}
 
-# Additional packages
-RUN apt-get update
-RUN apt-get install -y apt-utils git wget curl dnsutils python python-pip jq net-tools coreutils vim
-
 RUN pip install requests pyyaml kubernetes
 
-
 ENV CERT="/var/run/secrets/kubernetes.io/serviceaccount/ca.crt"
 ENV TOKEN="/var/run/secrets/kubernetes.io/serviceaccount/token"
 
@@ -21,4 +16,5 @@ RUN chmod a+x /root/ready.py
 COPY job_complete.py /root/job_complete.py
 RUN chmod a+x /root/job_complete.py
 
-ENTRYPOINT /root/ready.py
+ENTRYPOINT ["/root/ready.py"]
+CMD [""]
\ No newline at end of file
diff --git a/kubernetes/readiness/docker/init/job_complete.py b/kubernetes/readiness/docker/init/job_complete.py
index 97d22da6c1..2b3180aa2e 100644
--- a/kubernetes/readiness/docker/init/job_complete.py
+++ b/kubernetes/readiness/docker/init/job_complete.py
@@ -1,4 +1,4 @@
-#!/usr/bin/python
+#!/usr/bin/env python
 import getopt
 import logging
 import os
diff --git a/kubernetes/readiness/docker/init/ready.py b/kubernetes/readiness/docker/init/ready.py
index 87c09a444c..20872f9897 100644
--- a/kubernetes/readiness/docker/init/ready.py
+++ b/kubernetes/readiness/docker/init/ready.py
@@ -1,4 +1,4 @@
-#!/usr/bin/python
+#!/usr/bin/env python
 import getopt
 import logging
 import os