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There are several ways to create deployments, each catering to different organizational needs.

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Create deployments with static infrastructure

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Create a deployment with serve

This is the simplest way to get started with deployments: 
from prefect import flow   @flow def my_flow():  print("Hello, Prefect!")   if __name__ == "__main__":  my_flow.serve(name="my-first-deployment", cron="* * * * *")
The serve method creates a deployment from your flow and immediately begins listening for scheduled runs to execute. Providing cron="* * * * *" to .serve associates a schedule with your flow so it will run every minute of every day.

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Create deployments with dynamic infrastructure

For more configuration, you can create a deployment that uses a work pool. Reasons to create a work-pool based deployment include:
  • Wanting to run your flow on dynamically provisioned infrastructure
  • Needing more control over the execution environment on a per-flow run basis
  • Creating an infrastructure template to use across deployments
Work pools are popular with data platform teams because they allow you to manage infrastructure configuration across an organization. Prefect offers two options for creating deployments with dynamic infrastructure:

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Create a deployment with deploy

To define a deployment with a Python script, use the flow.deploy method. Here’s an example of a deployment that uses a work pool and bakes the code into a Docker image. 
from prefect import flow   @flow def my_flow():  print("Hello, Prefect!")  if __name__ == "__main__":  my_flow.deploy(  name="my-second-deployment",  work_pool_name="my-work-pool",  image="my-image",  push=False,  cron="* * * * *",  )
To learn more about the deploy method, see Deploy flows with Python.

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Create a deployment with a YAML file

If you’d rather take a declarative approach to defining a deployment through a YAML file, use a prefect.yaml file. Prefect provides an interactive CLI that walks you through creating a prefect.yaml file: 
prefect deploy
The result is a prefect.yaml file for deployment creation. The file contains build, push, and pull steps for building a Docker image, pushing code to a Docker registry, and pulling code at runtime. Learn more about creating deployments with a YAML file in Define deployments with YAML. Prefect also provides CI/CD options for automatically creating YAML-based deployments.

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Create a deployment with Terraform

You can manage deployments with the Terraform provider for Prefect.

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Create a deployment with the API

You can manage deployments with the Prefect API.
Choosing between deployment methodsFor many cases, serve is sufficient for scheduling and orchestration. The work pool / worker paradigm via .deploy() or prefect deploy can be great for complex infrastructure requirements and isolated flow run environments. You are not locked into one method and can combine approaches as needed.