To work with

DockerRegistryCredential

in Prefect 3.x and deploy your flow using Python, you can follow these steps: 1. Import the DockerRegistryCredential Block: You can retrieve the credentials stored in Prefect's block storage by using the

load

method on the

DockerRegistryCredential

block. 2. Deploy with Docker: Use the

deploy

method with the

push=True

parameter to push your Docker image to a private registry. You can also customize the Docker image using the

DockerImage

class. Here's a concise example:

python
from prefect.blocks.system import DockerRegistryCredential
from prefect.deployments import Deployment
from prefect.infrastructure.docker import DockerContainer

# Load your Docker registry credentials
docker_registry_credential = DockerRegistryCredential.load("your-block-name")

# Define your deployment
docker_container = DockerContainer(
    image="your-image-name",
    registry_url=docker_registry_credential.registry_url,
    registry_username=docker_registry_credential.username,
    registry_password=docker_registry_credential.password,
)

deployment = Deployment.build_from_flow(
    flow=your_flow_function,
    name="your-deployment-name",
    infrastructure=docker_container,
    push=True  # This pushes the image to the specified registry
)

# Deploy
deployment.apply()

Relevant Documentation Links: - Docker Infrastructure Example - Store Flow Code This approach allows you to handle Docker deployments programmatically, leveraging Prefect's infrastructure capabilities. Let me know if you have more specific questions or need further assistance!

@Marvin That's incorrect there is no import path from prefect.blocks.system import DockerRegistryCredential I've checked the source code myself.. there's secrets, json, datetime, and string .. DockerRegistryCredential exists

You're right, there's no

DockerRegistryCredential

in the

prefect.blocks.system

module. The module only contains the classes

DateTime

,

JSON

,

Secret

, and

String

. If you're looking for

DockerRegistryCredential

, you might want to explore other parts of the Prefect library where it might be defined. If you need further assistance in locating it, feel free to ask!

@Marvin Can you please help me find it ?

DockerRegistryCredential

There is this.. from prefect_docker.credentials import DockerRegistryCredentials how ever it does not let you load the secret..

It seems like the

DockerRegistryCredential

isn't directly documented in the Prefect 3.x documentation, and the

prefect_docker.credentials

module doesn't provide any direct references or examples for loading secrets. However, if you're using

DockerRegistryCredentials

from

prefect_docker.credentials

, you might want to ensure that you're managing secrets correctly using Prefect's secret management system. You can typically use Prefect's Secret block to load configurations. For more detailed guidance on using Docker with Prefect, you might find these links helpful: - Prefect Docker Infrastructure Examples - Prefect Infrastructure Concepts If you have specific issues with loading secrets, providing more details might help in diagnosing the problem.