Is there a way to prevent the prefect docker flow storage fr

Question

Is there a way to prevent the prefect docker flow storage from pip installing the latest and greatest prefect My build setup team is aghast We prefer to explicitly manage dependencies ourselves

Spencer · Answer

According to the source you ll need to pre install prefect <https github com PrefectHQ prefect blob master src prefect storage docker py L204 L210>

Billy McMonagle · Answer

In my build environment I have `pip install prefect==PREFECT VERSION` and set explicitly the base image that docker storage is built from Together these seem to work well

Chris White · Answer

The Docker storage interface determines what version to install based on your local version so if it s installing `master` or the latest version that must be what you re running on locally If you want to specify a different version there is a `prefect version` kwarg to the interface that you can use to pin to whatever version you d like

Dolor Oculus · Answer

< Chris White> fire thank you

Dolor Oculus · Answer

we re using conda though so pip is still an issue

Dolor Oculus · Answer

I ll share the above with my build team though and see if they have thoughts

Kevin Weiler · Answer

yeah to be clear < Chris White> we specifically DON T want prefect installing anything in our environment There are 2 reasons for this 1 the container we base off has a conda environment that we build that already has prefect installed 2 because the environment is conda it s possible for pip to install dependencies over top of ours

Kevin Weiler · Answer

a bit of further explanation We don t particularly like conda but until very recently it was the only game in town as far as actual package resolution is concerned Pip prior to v20 3 doesn t actually handle transitive dependencies which is a huge problem in a sufficiently complex environment As an example if package A depends on package Z==2 and Package B depends on package Z==1 pip installs the transitive dependencies in whatever order it installs the explicit dependencies So if package A is listed first in your `requirements txt` then it installs package Z==2 first and then Z==1 over top of it second

Kevin Weiler · Answer

here s a bit more reading on the topic <https pyfound blogspot com 2020 11 pip 20 3 new resolver html>