Fix and move Dockerfile to this repository

Change-Id: I07039719c82d3a727b108f7875f231cd6b79493d
diff --git a/docker/ENTRYPOINT.sh b/docker/ENTRYPOINT.sh
new file mode 100644
index 0000000..cd44fa7
--- /dev/null
+++ b/docker/ENTRYPOINT.sh
@@ -0,0 +1,11 @@
+#!/usr/bin/env bash
+
+# set python3 alias, but needs permanent fix in image directly
+alias python=python3
+
+service openvswitch-switch start
+ovs-vsctl set-manager ptcp:6640
+
+bash
+
+service openvswitch-switch stop