502 errors on /info/ if a data stack is missing in the service table

[perlman]

The info service errors when an entry in the info services does not yet exist in the service table. End user gets a 502 error.

To reproduce, add a new entry to the info service (name & service is enough) without adding the corresponding services to the service table.

10.48.1.1 - - [07/Jan/2026:15:07:55 +0000] "GET /info/ HTTP/1.1" 302 379 "http://<ip>:80/info" "kube-probe/1.33" "-"
DEBUG:urllib3.connectionpool:Starting new HTTPS connection (1): <global>:443
DEBUG:urllib3.connectionpool:https://<global>:443 "GET /auth/api/v1/user/cache HTTP/1.1" 200 410
DEBUG:urllib3.connectionpool:https://<global>:443 "GET /auth/api/v1/service/datastack/table/fish2_v5/dataset HTTP/1.1" 404 44
Traceback (most recent call last):
  File "/usr/local/lib/python3.9/site-packages/flask/app.py", line 2213, in __call__
    return self.wsgi_app(environ, start_response)
  File "/usr/local/lib/python3.9/site-packages/flask/app.py", line 2193, in wsgi_app
    response = self.handle_exception(e)
  File "/usr/local/lib/python3.9/site-packages/flask_restx/api.py", line 672, in error_router
    return original_handler(e)
  File "/usr/local/lib/python3.9/site-packages/flask_cors/extension.py", line 176, in wrapped_function
    return cors_after_request(app.make_response(f(*args, **kwargs)))
  File "/usr/local/lib/python3.9/site-packages/flask/app.py", line 2190, in wsgi_app
    response = self.full_dispatch_request()
  File "/usr/local/lib/python3.9/site-packages/flask/app.py", line 1486, in full_dispatch_request
    rv = self.handle_user_exception(e)
  File "/usr/local/lib/python3.9/site-packages/flask_restx/api.py", line 672, in error_router
    return original_handler(e)
  File "/usr/local/lib/python3.9/site-packages/flask_cors/extension.py", line 176, in wrapped_function
    return cors_after_request(app.make_response(f(*args, **kwargs)))
  File "/usr/local/lib/python3.9/site-packages/flask/app.py", line 1484, in full_dispatch_request
    rv = self.dispatch_request()
  File "/usr/local/lib/python3.9/site-packages/flask/app.py", line 1469, in dispatch_request
    return self.ensure_sync(self.view_functions[rule.endpoint])(**view_args)
  File "/usr/local/lib/python3.9/site-packages/middle_auth_client/decorators.py", line 376, in decorated_function
    return f(*args, **kwargs)
  File "/app/./annotationinfoservice/datasets/views.py", line 32, in index
    datastacks = [
  File "/app/./annotationinfoservice/datasets/views.py", line 35, in <listcomp>
    if user_has_permission("view", d.name, "datastack", ignore_tos=True)
  File "/usr/local/lib/python3.9/site-packages/middle_auth_client/decorators.py", line 231, in user_has_permission
    dataset = dataset_from_table_id(resource_namespace, table_id, token)
  File "/usr/local/lib/python3.9/site-packages/cachetools/__init__.py", line 702, in wrapper
    v = func(*args, **kwargs)
  File "/usr/local/lib/python3.9/site-packages/middle_auth_client/decorators.py", line 204, in dataset_from_table_id
    raise RuntimeError(
RuntimeError: failed to lookup dataset for service datastack & table_id: fmy_datastack: status code 404. content: b'No dataset for given service and table names'