Hello I am a beginner at prefect pipeline orchestration This

Question

Hello I am a beginner at prefect pipeline orchestration This is the first time I ve attempted to dockerize my prefect pipeline and register it to local UI server After submitting my flow it seems to be stuck with a backlog of late runs

Riley Hun · Answer

Just doing a simple test flow for now ```with Flow Thinknum ETL schedule=schedule as flow token = token task version=version t = print value token with open build creds json as f envs = json load f storage = Docker image name= flows storage image tag= latest dockerfile= dockerfiles thinknum Dockerfile local image=True env vars=envs storage build flow storage = storage security = Security tls ca file= certs myca pem tls client cert= certs myca pem tls client key= certs mykey pem require encryption=True flow environment executor = DaskExecutor address= lt IP ADDRESS gt client kwargs= security security flow register build=False ```

Jenny · Answer

Hi < Riley Hun> Do you have an agent running If so what type

Riley Hun · Answer

Hi < Jenny> Don t think I have an agent running actually

Riley Hun · Answer

As an aside how do I go about testing the dockerized flow without submitting the flow

Jenny · Answer

You ll need an agent to run any flows from the UI in Server <https docs prefect io orchestration agents overview html>

Jenny · Answer

For testing the flow did you try Josh s suggestion from earlier ```from prefect import Flow my flow = Flow load name of flow OR abs path my flow run ```

Riley Hun · Answer

< Jenny> I tried it I named my flow Thinknum ETL but when I try to load it afterwards it says it cannot find the flow `No such file or directory Users rihun prefect flows thinknum etl prefect `

Jenny · Answer

Just checking that s not a typo Thinknum ETL vs thinknum etl

Jenny · Answer

Any luck with your agent and late runs

Riley Hun · Answer

Yup it s Thinknum ETL Not sure why it s looking for thinknum etl I tried a local agent for now so after `flow register ` I tried `flow run agent ` Will try again

Riley Hun · Answer

< Jenny> It seems to be struggling to connect to the graphql

Jenny · Answer

Hmmm That s strange as you managed to register your flows and have them display in the UI Are you getting any other error logs

Jenny · Answer

I m not sure of your exact set up but it sounds like you re wanting to run flows with Docker Our tutorial here might be helpful to you <https docs prefect io orchestration tutorial docker html persisting your flow with docker storage>

Riley Hun · Answer

I m actually taking a step back and now trying to walk before I run So I just took a simple flow in your docs w o docker and trying to register to the UI Still encountering the same problem My config toml file is like this ``` server server ui graphql url = <http localhost 4200 graphql> ```

Jenny · Answer

What version of Prefect are you using

Riley Hun · Answer

Oh whoops never mind I got that working now Sorry about that didn t realize I have to run the flow from the UI

Riley Hun · Answer

Will try with docker now

Riley Hun · Answer

< Jenny> Seems to work now The flow did fail though Kind of hard to tell what the error is based on the logs from the UI The state message `Failed to load and execute Flow s environment FileNotFoundError 2 No such file or directory `

Jenny · Answer

Good to hear you should be able to see more information in the logs page of the UI I also encourage you to have a look through previous slack messages for that error message there s some good advice which should help you

Riley Hun · Answer

The only log message I get from the UI is this ```Submitted for execution Container ID 4f32ff2618bbedf51826a325f5517ddd9e610dedff074bb3bc9f7d35a8e1d2e5```