Added a workaround for Alpine Linux to avoid Python segfaults (docker-library/python#211)

Author: frol

app/__init__.py

@@ -21,6 +21,11 @@ def create_app(flask_config_name=None, **kwargs):
     """
     Entry point to the Flask RESTful Server application.
     """
+    # This is a workaround for Alpine Linux (musl libc) quirk:
+    # https://github.com/docker-library/python/issues/211
+    import threading
+    threading.stack_size(2*1024*1024)
+
     app = Flask(__name__, **kwargs)
 
     env_flask_config_name = os.getenv('FLASK_CONFIG')