whats the correct pattern for spinning our own cloud runner

Question

whats the correct pattern for spinning our own cloud runner we simply want to add some initialization to `CloudFlowRunner` so that we can initialize sentry and datadog as early as possible as well as flush our statsd buffer to track metrics it seems like the place i d expect it to read from the env var is hardcoded tho <https github com PrefectHQ prefect blob master src prefect agent kubernetes agent py L562 L586>

Zach Schumacher · Answer

e g im trying to do this ```class FlowRunner CloudFlowRunner pragma no cover def run self args kwargs <http logger info|logger info> Flow start try tasks init result = super run args kwargs finally statsd flush return result```

Zach Schumacher · Answer

talked briefly to < Kevin Kho> about it

Zach Schumacher · Answer

cc < Joshua Massover>

Anna Geller · Answer

actually regarding Sentry check this blog post <https source coveo com 2022 04 20 integrating sentry with prefect flows >

Anna Geller · Answer

for Datadog this might be helpful <https github com PrefectHQ prefect discussions 5142>

Anna Geller · Answer

I believe you would as you said need to create your custom class and register it via this env variable ```PREFECT ENGINE FLOW RUNNER DEFAULT CLASS```

Zach Schumacher · Answer

but it looks to be hard coded in that code snip i sent

Joshua Massover · Answer

the sentry link is helpful for gathering further metadata regarding the flow and task thank you the solution seems like what we ve settled on where we re creating an upstream init task before any of our other code runs It would be nice is if each flow didn t need to worry about python package level process initialization

Anna Geller · Answer

this is not hard coded afaik I think you could override it on your run config LMK if that s not the case and I could open an issue to investigate

Kevin Kho · Answer

The agent overrides configs <https github com PrefectHQ prefect blob master src prefect agent kubernetes agent py L579 L580|here> for the CloudRunner

Kevin Kho · Answer

Maybe you can make you own agent class too haha

Zach Schumacher · Answer

exploding head

Zach Schumacher · Answer

think i ll wait for v2 sweat smile

Kevin Kho · Answer

You re on the Kubernetes agent right

Zach Schumacher · Answer

ye