Hello, Last week during the PTG the heat team gathered to discuss a few topics. Thank you all who attended the session and the valuable discussions. The details can be found in https://etherpad.opendev.org/p/apr2025-ptg-heat but I'll leave some summary. There are a few plans about which we want to ask for any feedback from operators so I'm adding [ops] tag here. 1. Eventlet removal During the session we reviewed the current global plan to remove/replace eventlet and discussed the plan to follow it in heat. Our current idea is to remove/deprecate unmaintained code first so that we can shrink the scope. At this moment we aim to deprecate and remove the following items. - Standalone heat-api and heat-cfn-api - These are deprecated due to deprecation of WSGI server implementation from oslo.service, which depends on eventlet. Users can run api server by external server mechanism such as mod_wsgi or uwsgi. - heat-all service - This is deprecated due to deprecation of WSGI server implementation from oslo.service, which depends on eventlet. We expect this is not really used in production - legacy engine - This was deprecated in favor of convergence. Note that removing this means we no longer support adopt/abandon/check feature. Question to operators: Does anyone have concern about deprecating/removing these items ? Please be aware that the current heat team is quite small and we need actual help to replace eventlet for these features. 2. CFN API We discussed the current status of heat-cfntool which heavily depends on unmaintained boto library. However we also agreed that replacing boto by boto3 requires some effort due to the fact that boto3 does not allow overriding endpoint quite easily. While we aim to deprecate CFN api, we agreed that we still have to asses the impact because CFN API is used for signaling by default. Question to operators: Is anyone using CFN API in any other use case than signaling ? For the first topic, if we don't hear any objections, we'll follow the plan to move the removal work forward. Thank you, Takashi -- Takashi Kajinami irc: tkajinam github: https://github.com/kajinamit launchpad: https://launchpad.net/~kajinamit