@Marvin what is the relationship between webhooks and automations?

The relationship between webhooks and automations in Prefect is that webhooks can act as triggers for automations. Here's a breakdown: 1. Webhooks: - Webhooks in Prefect allow external systems to send events to Prefect Cloud via unique URL endpoints. - These webhooks can be configured to translate incoming web requests into Prefect events. - You can manage webhooks through the Prefect Cloud API, Prefect Cloud UI, or Prefect CLI. - More details: Prefect 2.x Webhooks Documentation and Prefect 3.x Webhooks Documentation 2. Automations: - Automations in Prefect Cloud let you define actions that are automatically executed based on specified trigger conditions. - These triggers can be flow run state changes, custom Python event triggers, or events received from webhooks. - Automations can start flow runs, pause schedules, send notifications, etc. - More details: Prefect 2.x Automations Documentation and Prefect 3.x Automations Documentation In summary, webhooks enable Prefect Cloud to receive events from external systems, and these events can be used to trigger automations, allowing Prefect to respond dynamically to external events.

@Marvin using a webhook to trigger an event through an automation for example a deployment. Depending on the content of the event can the automation be used to trigger Deployment 1 and the context of another event Deployment 2?

Yes, you can use an automation with a webhook in Prefect to trigger different deployments based on the content of the webhook event. Here's how you can achieve this: 1. Webhooks: - Configure a webhook in Prefect to receive events from your external system. - The webhook will translate these incoming requests into Prefect events using templates. 2. Automations: - Create an automation that listens to the events generated by the webhook. - Use conditional logic to trigger different deployments based on the event content. Here's an example to illustrate the process: Step 1: Define the webhook Create a webhook with a template that extracts relevant information from the event.

json
{
  "event": "deployment-trigger",
  "resource": {
    "prefect.resource.id": "deployment.{{ body.deployment_id }}",
    "prefect.resource.name": "{{ body.friendly_name }}"
  }
}

Step 2: Send an event to the webhook A POST request may look something like this:

sh
curl -X POST <https://api.prefect.cloud/hooks/your-webhook-id> -d '{"deployment_id":"1", "friendly_name":"Deploy_1"}'

Step 3: Create an automation Set up an automation in Prefect that reacts to this event. - Trigger: Configure the trigger to match the event type

deployment-trigger

. - Action: Use conditional logic in automation rules to start the appropriate deployment based on the

deployment_id

or other content in the event. Example Automation Setup (Prefect 2.x and 3.x): Use the Prefect UI or API to create an automation. The trigger might look like:

python
from prefect import flow, serve
from prefect.events import DeploymentEventTrigger

@flow
def deploy_1():
    print("Executing Deployment 1")

@flow
def deploy_2():
    print("Executing Deployment 2")

if __name__ == "__main__":
    deployment_1 = deploy_1.to_deployment(name="deployment_1")
    deployment_2 = deploy_2.to_deployment(name="deployment_2")
    
    serve(deployment_1, deployment_2)

Ensure your automation checks the content of the event and decides which deployment to trigger:

python
trigger = DeploymentEventTrigger(
    expect={"deployment-trigger"},
    match_related={"prefect.resource.id": "deployment_1"},
    actions=[...]
)

another_trigger = DeploymentEventTrigger(
    expect={"deployment-trigger"},
    match_related={"prefect.resource.id": "deployment_2"},
    actions=[...]
)

References: - Prefect 2.x Webhooks Documentation - Prefect 2.x Automations Documentation - Prefect 3.x Webhooks Documentation - Prefect 3.x Automations Documentation With these steps, you can set up an automation in Prefect that reacts to webhook events and triggers different deployments based on the content of those events.

@Marvin we would like to keep the code generic so that it can take as a parameter the name of the deployment that needs to be triggered?

deployment_1

would be replaced with whatever deployment name is sent through as part of the web hook payload, and using a single automation we will use it to trigger the deployment (based on the deployment name).

To achieve a dynamic deployment triggering based on the webhook payload in Prefect, here are the steps you can follow for both Prefect 2.x and 3.x versions. ### Prefect 2.x You can create an automation that triggers a deployment based on the event data you receive. Prefect 2.x supports this through deployment triggers which can be specified in your

prefect.yaml

file. 1. Setup your `prefect.yaml`: Add a trigger definition for your deployment in

prefect.yaml

. This allows you to render the event data (like deployment names) using Jinja templates. 2. Webhook Setup: Define a webhook that captures the data from the event and triggers the deployment. You can use curl or any HTTP method to simulate this. Here is an example:

yaml
deployments:
  - name: my-deployment
    triggers:
      - type: webhook
        parameters: 
          deployment_name: "{{ event.payload.deployment_name }}"

You can then use a webhook to send the deployment name dynamically:

bash
curl -X POST <https://api.prefect.cloud/hooks/YOUR_HOOK_ID> -d "deployment_name=my-deployment-1"

### Prefect 3.x Similarly, in Prefect 3.x, this feature is quite similar but offers enhanced capabilities such as inferencing for dynamic events. You can still make use of

prefect.yaml

and webhooks to define event-driven deployments. 1. Setup your `prefect.yaml`: Add the trigger definition in your deployment YAML. 2. Define Webhooks: Use webhook templates with dynamic placeholders to trigger appropriate deployments. Here is an example configuration:

yaml
deployments:
  - name: my-deployment
    triggers:
      - type: webhook
        parameters:
          deployment_name: "{{ context.webhook.payload.deployment_name }}"

Invoke the webhook like so:

bash
curl -X POST <https://api.prefect.cloud/hooks/YOUR_HOOK_ID> -d "deployment_name=my-dynamic-deployment"

### References - Prefect 2.x Automation - Prefect 2.x Webhooks Guide - Prefect 3.x Automations and Triggers - Prefect 3.x Webhook Triggers These configurations and examples should help you dynamically trigger deployments using Prefect based on the webhook payload received.

@Marvin is the relationship between a web hook and automation one to one?

In both Prefect 2.x and 3.x, a webhook can trigger one or multiple automations, allowing for a flexible relationship between webhooks and automations. ### Prefect 2.x In Prefect 2.x, webhooks transform incoming web requests into Prefect events, which can then be used in one or more automations. This means you can have a single webhook endpoint that triggers multiple different automations based on the event data. Reference: - Webhooks and automations in Prefect 2.x Guide ### Prefect 3.x Similarly, Prefect 3.x supports a many-to-many relationship between webhooks and automations. A single webhook can generate events that trigger multiple automations. Each webhook provides a unique URL endpoint that receives events from other systems and translates them into Prefect events suitable for various automations. Reference: - Webhook triggers and automations in Prefect 3.x Guide - Automations and triggers in Prefect 3.x Documentation Thus, the relationship between webhooks and automations in both Prefect 2.x and 3.x systems is not restricted to one-to-one, providing the flexibility to map multiple automations to a single webhook and vice versa.

@Marvin can a web hook and one automation trigger a deployment for example deployment_1 and then with another payload trigger deployment_10, and then with another payload trigger deployment_15, and so on?

Yes, you can use a single webhook and a single automation to trigger different deployments based on the payload received. Prefect offers the flexibility to handle various deployments dynamically by parsing the payload data and using it to determine which deployment to trigger. ### Prefect 2.x Using webhooks and automations in Prefect 2.x, you can configure your setup to dynamically choose the deployment based on the payload content. Example:

yaml
deployments:
  - name: dynamic-deployment
    triggers:
      - type: webhook
        parameters:
          deployment_name: "{{ event.payload.deployment_name }}"

You can send different payloads to this webhook to trigger different deployments.

bash
curl -X POST <https://api.prefect.cloud/hooks/YOUR_HOOK_ID> -d "deployment_name=deployment_1"
curl -X POST <https://api.prefect.cloud/hooks/YOUR_HOOK_ID> -d "deployment_name=deployment_10"
curl -X POST <https://api.prefect.cloud/hooks/YOUR_HOOK_ID> -d "deployment_name=deployment_15"

### Prefect 3.x Prefect 3.x also supports this functionality, providing advanced trigger mechanisms and flexible event handling. Example:

yaml
deployments:
  - name: dynamic-deployment
    triggers:
      - type: webhook
        parameters:
          deployment_name: "{{ context.webhook.payload.deployment_name }}"

Invoke the webhook with different payloads to trigger various deployments.

bash
curl -X POST <https://api.prefect.cloud/hooks/YOUR_HOOK_ID> -d "deployment_name=deployment_1"
curl -X POST <https://api.prefect.cloud/hooks/YOUR_HOOK_ID> -d "deployment_name=deployment_10"
curl -X POST <https://api.prefect.cloud/hooks/YOUR_HOOK_ID> -d "deployment_name=deployment_15"

References: - Prefect 2.x Guide: Triggers and Automations - Prefect 3.x Guide: Automations and Triggers This approach allows you to manage and trigger different deployments dynamically based on the payload of the incoming webhook, making your workflows highly adaptable and responsive to external events.

@Marvin where is the following yaml defined?

yaml
deployments:
  - name: dynamic-deployment
    triggers:
      - type: webhook
        parameters:
          deployment_name: "{{ event.payload.deployment_name }}"

The YAML configuration for deploying triggers, including defining webhooks, can be included directly in a

prefect.yaml

file. This is where you define various deployment settings, including triggers that handle events from webhooks. ### Example Configuration in

prefect.yaml

Here is how you can define deployment triggers within your `prefect.yaml`:

yaml
deployments:
  - name: dynamic-deployment
    entrypoint: path/to/your_flow.py:flow_function
    work_pool:
      name: my-work-pool
    triggers:
      - type: webhook
        parameters:
          deployment_name: "{{ event.payload.deployment_name }}"

### Steps to Use It 1. Prepare the YAML File: Add the necessary configuration to your

prefect.yaml

file as shown in the example. 2. Deploy: Use the

prefect deploy

command to deploy this configuration.

bash
    prefect deploy -n dynamic-deployment --trigger your_trigger_file.yaml

### References - Prefect 2.x Automations Documentation

@Marvin is

prefect.yaml

the only way this can be done, or can it be done programmatically using the Prefect API?

While the

prefect.yaml

file is one way to define deployment triggers, you can also do this programmatically using the Prefect API in both Prefect 2.x and 3.x. This allows you to create and manage your deployments with more flexibility directly within your Python code. ### Prefect 2.x You can define deployment triggers programmatically using Prefect's deployment-related classes and methods. Example:

python
from prefect import flow
from prefect.events import DeploymentEventTrigger

@flow(log_prints=True)
def my_flow(param_1: str):
    print(param_1)

if __name__ == "__main__":
    my_flow.deploy(
        name="dynamic-deployment",
        triggers=[
            DeploymentEventTrigger(
                enabled=True,
                match={"prefect.resource.id": "some_resource"},
                expect=["resource.updated"],
                parameters={
                    "deployment_name": "{{ event.payload.deployment_name }}"
                }
            )
        ]
    )

### Prefect 3.x Similarly, in Prefect 3.x, you can use deployment APIs to achieve this programmatically. Example:

python
from prefect import flow, serve
from prefect.events import DeploymentEventTrigger

@flow(log_prints=True)
def my_flow():
    print("Running dynamic deployment")

if __name__ == "__main__":
    deployment = my_flow.to_deployment(
        name="dynamic-deployment",
        triggers=[
            DeploymentEventTrigger(
                expect={"prefect.resource": "some_event"},
                match_related={"prefect.resource.name": "{{ context.webhook.payload.deployment_name }}"}
            )
        ]
    )
    serve(deployment)

References: - Prefect 2.x Automations Documentation - Prefect 3.x Automations Documentation This provides a more programmatic way of setting up your deployments, giving you the flexibility to define and manage them using Python in addition to the standard YAML configurations.

@Marvin how do I create an automation programmatically and link it to a web hook?

You can create an automation programmatically and link it to a webhook using the Prefect API or defining it through Python scripts. Here’s an example for creating such automations for both Prefect 2.x and 3.x. ### Prefect 2.x You can use the Prefect API and deployment-related classes to create an automation and dynamically generate events from a webhook. Example:

python
import requests
from prefect import flow
from prefect.events import DeploymentEventTrigger

@flow(log_prints=True)
def my_flow(param_1: str):
    print(param_1)

if __name__ == "__main__":
    deployment = my_flow.deploy(
        name="my-deployment",
        triggers=[
            DeploymentEventTrigger(
                enabled=True,
                match={"prefect.resource.id": "some_resource"},
                expect=["resource.updated"],
                parameters={
                    "deployment_name": "{{ event.payload.deployment_name }}"
                }
            )
        ]
    )
    
    # Create a webhook via API
    webhook_payload = {
        "event": "model-update",
        "resource": {
            "prefect.resource.id": "product.models.{{ body.model_id }}",
            "prefect.resource.name": "{{ body.friendly_name }}",
            "run_count": "{{ body.run_count }}"
        }
    }
    
    response = <http://requests.post|requests.post>(
        "<https://api.prefect.cloud/hooks/YOUR_HOOK_ID>",
        json=webhook_payload,
        headers={"Authorization": "Bearer YOUR_PREFECT_API_TOKEN"}
    )
    
    if response.status_code == 200:
        print("Webhook created successfully")

### Prefect 3.x Similarly, Prefect 3.x allows for dynamic event handling using the Prefect API: Example:

python
import requests
from prefect import flow, serve
from prefect.events import DeploymentEventTrigger

@flow(log_prints=True)
def my_flow():
    print("Running dynamic deployment")

if __name__ == "__main__":
    deployment = my_flow.to_deployment(
        name="dynamic-deployment",
        triggers=[
            DeploymentEventTrigger(
                expect={"prefect.resource": "some_event"},
                match_related={"prefect.resource.name": "{{ context.webhook.payload.deployment_name }}"}
            )
        ]
    )
    serve(deployment)
    
    # Create a webhook via API
    webhook_payload = {
        "event": "model-update",
        "resource": {
            "prefect.resource.id": "product.models.{{ body.model_id }}",
            "prefect.resource.name": "{{ body.friendly_name }}",
            "run_count": "{{ body.run_count }}"
        }
    }
    
    response = <http://requests.post|requests.post>(
        "<https://api.prefect.cloud/hooks/YOUR_HOOK_ID>",
        json=webhook_payload,
        headers={"Authorization": "Bearer YOUR_PREFECT_API_TOKEN"}
    )
    
    if response.status_code == 200:
        print("Webhook created successfully")

### References - Prefect 2.x Automations Documentation - Prefect 3.x Automations Documentation - Prefect 3.x Webhook Triggers By leveraging these examples, you can programmatically create and manage automations linked to webhooks, allowing you to dynamically trigger deployments based on incoming webhook data.

@Marvin the web hook has already been created and is receiving events and I want to use a reference to this web hook in my automation, is that possible?

Yes, you can use a reference to an existing webhook in your automation programmatically. Prefect allows you to specify the webhook endpoint that can trigger automations. Here’s how you can typically set this up in both Prefect 2.x and 3.x by referencing an existing webhook: ### Prefect 2.x Using the Prefect API, you can reference an existing webhook in your automation setup. Example:

python
import requests
from prefect import flow
from prefect.events import DeploymentEventTrigger

@flow(log_prints=True)
def my_flow(param_1: str):
    print(param_1)

if __name__ == "__main__":
    deployment = my_flow.deploy(
        name="my-deployment",
        triggers=[
            DeploymentEventTrigger(
                enabled=True,
                match={"prefect.resource.id": "some_resource"},
                expect=["resource.updated"],
                parameters={
                    "deployment_name": "{{ event.payload.deployment_name }}"
                }
            )
        ]
    )
    
    # Assuming the webhook already exists
    webhook_id = "YOUR_EXISTING_HOOK_ID"

    # Use API to reference the webhook in automation
    automation_payload = {
        "name": "my_automation",
        "triggers": [
            {
                "type": "webhook",
                "match": {"prefect.resource.id": webhook_id},
                "expect": ["custom.webhook.triggered"],
                "parameters": {
                    "deployment_name": "{{ event.payload.deployment_name }}"
                }
            }
        ]
    }

    response = <http://requests.post|requests.post>(
        "<https://api.prefect.cloud/automations/>",
        json=automation_payload,
        headers={"Authorization": "Bearer YOUR_PREFECT_API_TOKEN"}
    )
    
    if response.status_code == 200:
        print("Automation created successfully")
    else:
        print("Failed to create automation:", response.text)

### Prefect 3.x Similarly, in Prefect 3.x, you can reference an existing webhook in your automation programmatically. Example:

python
import requests
from prefect import flow, serve
from prefect.events import DeploymentEventTrigger

@flow(log_prints=True)
def my_flow():
    print("Running dynamic deployment")

if __name__ == "__main__":
    deployment = my_flow.to_deployment(
        name="dynamic-deployment",
        triggers=[
            DeploymentEventTrigger(
                expect={"prefect.resource": "custom.webhook.triggered"},
                match_related={"prefect.resource.name": "{{ context.webhook.payload.deployment_name }}"}
            )
        ]
    )
    serve(deployment)
    
    # Assuming the webhook already exists
    webhook_id = "YOUR_EXISTING_HOOK_ID"

    # Use API to reference the webhook in automation
    automation_payload = {
        "name": "my_automation",
        "triggers": [
            {
                "type": "webhook",
                "match": {"prefect.resource.id": webhook_id},
                "expect": ["custom.webhook.triggered"],
                "parameters": {
                    "deployment_name": "{{ event.payload.deployment_name }}"
                }
            }
        ]
    }

    response = <http://requests.post|requests.post>(
        "<https://api.prefect.cloud/automations/>",
        json=automation_payload,
        headers={"Authorization": "Bearer YOUR_PREFECT_API_TOKEN"}
    )
    
    if response.status_code == 200:
        print("Automation created successfully")
    else:
        print("Failed to create automation:", response.text)

### References - Prefect 2.x Automations Documentation - Prefect 3.x Automations Documentation - Prefect 3.x Webhook Triggers By using an existing webhook ID and referencing it in your automation payload, you can dynamically create and manage automations that respond to webhook events.