Hi I m trying to migrate from 1 x to 2 x with Docker storage

Question

Hi I m trying to migrate from 1 x to 2 x with Docker storage and infrastructure The following image states that Prefect can store flows data in Docker images but the doesn t refer to it Is it still possible in 2 x Is there any example I can find Thanks

Anna Geller · Answer

those two might help

flavienbwk · Answer

Thank you your repo is very useful but I don t find any reference to `Deployment build from flow ` What build from flow storage value should I define for a Docker storage not only infrastructure I still get the `Flow could not be retrieved from deployment No such file or directory opt prefect flows ` error from my agent if I don t specify a storage value Related PR comment <https github com PrefectHQ prefect pull 6574 files r979469078>

Anna Geller · Answer

could you perhaps leverage the CLI instead as shown in the repo I personally think that CLI is more user friendly and integrates better with CI CD but up to you

Anna Geller · Answer

I also replied there

flavienbwk · Answer

Thank you but I still can t make it work if I don t bind the opt prefect flows volume of the agent to the one of the script registering it If I bind it it runs The CLI is not a solution for my usage of Prefect in APIs This directory exists in the agent container Here is the error I still getting if I don t bind the Prefect directory

flavienbwk · Answer

I think I start to understand the principle of Docker storage in Prefect 2 In Prefect 1 stored Docker image was built directly BY Prefect with the flow placed inside Now it is the charge of the user to place its flow files inside an image under ` opt prefect flows ` by himself push it to registry and give it to the Prefect 2 builder The `image` is no more a `base image` but the image including the flow

Anna Geller · Answer

Can you share your Dockerfile

flavienbwk · Answer

I ve managed to What I was not understanding is the new Prefect mechanism without the CLI from Python code that doesn t build the image anymore I think it s a good move and that image build should indeed be in the hands of the user That makes Docker storage more coherent So basically in my exemple I manually reproduce the build before

Anna Geller · Answer

thanks for sharing this explains a lot and fully agree that this is much better now in v2 raised hands