Merge branch 'pr-healthcheck'

main.py

@@ -16,6 +16,10 @@ def allowed_file(filename):
     return '.' in filename and \
            filename.rsplit('.', 1)[1].lower() in ALLOWED_EXTENSIONS
 
+@app.route('/ping')
+def ping():
+    return 'pong', 200
+
 @app.route('/', methods=['GET', 'POST'])
 def upload_file():
     if request.method == 'POST':