@Marvin I received this message when deploying flows: "WARNING: The 'deployment build' command has been deprecated. It will not be available after Sep 2024. Use 'prefect deploy' to deploy flows via YAML instead." How can I transition to 'prefect deploy' instead of 'deployment build'?

To transition to using

prefect deploy

instead of

deployment build

, follow these steps: 1. Create a

prefect.yaml

file: This file should describe the deployment and include sections for build, push, and pull steps. 2. Run the deployment: Use the

prefect deploy

command in the directory containing the

prefect.yaml

file. Here’s a brief overview of what happens: - The

prefect.yaml

file is loaded. - The build steps are executed. - The push steps are executed. - The pull steps are templated with any step outputs but are not run. Block references are resolved at runtime for security. - All variable and block references are resolved with the deployment declaration. - Finally, the deployment specification is registered with the Prefect API. For more details, you can refer to this guide on Prefect Deploy. Here is an example of a simple

prefect.yaml

and Python code to help you get started:

yaml
# prefect.yaml
version: 1
name: my_deployment
description: A sample deployment
work_pool:
  - name: default
build:
  - prefect build -o my_image
push:
  - prefect push my_image my-registry/my-image:tag
pull:
  - prefect pull my_image
entrypoint: flows/example.py:flow_name

Example Python code to define and deploy your flow:

python
from prefect import flow, deploy

@flow(log_prints=True)
def my_workflow():
    print("I can call any python code here, including Prefect tasks or flows")

if __name__ == "__main__":
    my_workflow()
    deploy(
        my_workflow.to_deployment(name="my-deployment"),
        work_pool_name="default",
        image="my-registry/my-image:tag",
        push=False,
    )

For more code examples, visit: GitHub code example link