Sync python versions for http templates and add headers

Signed-off-by: Kevin Turcios <[email protected]>

Author: kturcios

template/python3-http-armhf/index.py

@@ -1,3 +1,4 @@
+#!/usr/bin/env python
 from flask import Flask, request, jsonify
 from waitress import serve
 import os

template/python3-http/Dockerfile

@@ -1,4 +1,4 @@
-FROM python:3.7-alpine
+FROM python:3.6-alpine
 
 ARG ADDITIONAL_PACKAGE
 # Alternatively use ADD https:// (which will not be cached by Docker builder)

template/python3-http/index.py

@@ -1,3 +1,4 @@
+#!/usr/bin/env python
 from flask import Flask, request, jsonify
 from waitress import serve
 import os