Minimize container image

Rebase image on alpine

Change-Id: I923c0792783b551bf623f754a2aed4bf1a765f45
Issue-ID: INT-1045
Signed-off-by: Dmitry Puzikov <dmitry.puzikov@tieto.com>
diff --git a/kubernetes/readiness/docker/init/job_complete.py b/kubernetes/readiness/docker/init/job_complete.py
index 97d22da..2b3180a 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