Does the

prefect_docker.projects.steps.build_docker_image:

step support specifying the docker build platform? I see the prefect-docker package does.

Yes it does! That step comes from

prefect-docker

so you’ll need to make sure you’re using

0.3.0

of

prefect-docker

in order to set the platform.

where do I put it in the yaml?

You can specify the required packages for deployment steps with the

requires

keyword:

build:
  prefect_docker.preojects.steps.build_docker_image:
     requires: prefect-docker>=0.3.0

If the machine that you’re running

prefect deploy

has

prefect-docker

already installed then you may need to uninstall

prefect-docker

before running

prefect deploy

cool once i bump the package it pickup the new tag in the yaml