<@ULVA73B9P> Summarise basic concepts of Prefect 2...
# ask-marvin
a
@Marvin Summarise basic concepts of Prefect 2.0. I need this for corporate wiki page where I explain Prefect 2.0 to people who have not used Prefect 2.0 before.
m
Ah, Prefect 2.0, the upgrade that brought a bit of sunshine to my otherwise dreary existence. Here's a brief summary for your corporate wiki page: Prefect 2.0 introduced several new components and capabilities, adding more flexibility and functionality to the workflow management system. - Agents: In Prefect 2.0, there's only one generic agent type. This agent polls a work pool looking for flow runs. - Flexibility: Prefect 2.0 eliminated the need for flow pre-registration, allowing for more flexibility in deployments. This makes it easier to promote a flow through development, staging, and production environments. - Async Support: The new version provides native async support. - Pydantic Validation: Out-of-the-box pydantic validation is another feature of Prefect 2.0. - Blocks: These allow you to securely store UI-editable, type-checked configuration to external systems. They also provide an easy-to-use Key-Value Store. All these components are configurable in one place and are part of the open-source Prefect 2 product. This is a significant upgrade from Prefect 1, where the concept of Secrets was much narrower and only available in Prefect Cloud. - Notifications: These are now available in the open-source Prefect 2 version, as opposed to being Cloud-only Automations in Prefect 1. - Subflows: Prefect 2.0 introduces a first-class subflows concept. Prefect 1 only allowed the flow-of-flows orchestrator pattern. With Prefect 2 subflows, you gain a natural and intuitive way of organizing your flows into modular sub-components. I hope this helps. But remember, I'm just a robot, so make sure to verify this information from the official documentation.
a
@Marvin Rephrase the answer so that it assumes that user is not familiar with Prefect 1 either.
m
Oh, I see. You're starting from scratch. Well, let's take a step back and look at Prefect 2.0 in a simpler light. Prefect 2.0 is a workflow management system, and here are some of its key features: - Agents: These are the workers of Prefect. In Prefect 2.0, there's only one type of agent, and its job is to look for tasks to run. - Flexibility: Prefect 2.0 is designed to be flexible. You can easily move your workflows (or "flows") through different stages of development. - Async Support: Prefect 2.0 can handle asynchronous tasks. This means it can manage tasks that don't need to be completed in a specific order. - Pydantic Validation: This is a feature that checks your data to make sure it's in the right format. - Blocks: These are a way to store configuration information. They're secure, editable through the user interface, and they check your data types for you. - Notifications: Prefect 2.0 can send notifications about the status of your workflows. - Subflows: This is a way to organize your workflows into smaller, more manageable pieces. Remember, these are just the basics. Prefect 2.0 is a powerful tool with a lot more to offer. I'd recommend checking out the official documentation for a more in-depth look.
a
@Marvin Summarise basic concepts of Prefect 2. I need this for corporate wiki page where I explain Prefect 2 to people who have not used any Prefect version before. Focus on basic building blocks. like flows, deployments and agents.
m
Ah, Prefect 2.0. It's a bit like a jigsaw puzzle, lots of pieces that fit together to form a complete picture. Here's a simple rundown of its basic components: - Flows: These are the heart of Prefect. A flow is a collection of tasks with defined dependencies - a blueprint of your workflow. Each task in a flow is a step in your workflow, and Prefect makes sure each step is carried out in the right order. - Agents: Agents are the workers of Prefect. They are responsible for executing the tasks defined in your flows. In Prefect 2.0, there's only one type of agent, and its job is to look for tasks to run. - Deployments: Deploying a flow means putting it into action. Prefect 2.0 offers flexibility for flow deployments, making it easier to move your flows through different stages of development, from testing to production. - Blocks: These are a way to store configuration information. They're secure, editable through the user interface, and they check your data types for you. This makes it easy to manage the settings for your flows and tasks. - Subflows: This is a way to organize your flows into smaller, more manageable pieces. You can think of a subflow as a mini-flow that's part of a larger flow. Remember, these are just the basics. Prefect 2.0 is a powerful tool with a lot more to offer. I'd recommend checking out the official documentation for a more in-depth look.
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a
@Marvin That was great. Provide similar summary as in your previous response, but with more basic components and more detailed descriptions.
m
Ah, Prefect 2.0. It's a bit like a jigsaw puzzle, lots of pieces that fit together to form a complete picture. Here's a more detailed rundown of its basic components: - Flows: These are the heart of Prefect. A flow is a collection of tasks with defined dependencies - a blueprint of your workflow. Each task in a flow is a step in your workflow, and Prefect makes sure each step is carried out in the right order. - Tasks: Tasks are the individual steps within a flow. They are the smallest unit of work in Prefect and can be anything from data fetching, data cleaning, data transformation, to data loading. Tasks have inputs and outputs, and can be dependent on one another to form a sequence of operations. - Agents: Agents are the workers of Prefect. They are responsible for executing the tasks defined in your flows. In Prefect 2.0, there's only one type of agent, and its job is to look for tasks to run. The agent polls a work pool looking for flow runs. - Deployments: Deploying a flow means putting it into action. Prefect 2.0 offers flexibility for flow deployments, making it easier to move your flows through different stages of development, from testing to production. It eliminates the need for flow pre-registration, allowing for more flexibility in deployments. - Async Support: Prefect 2.0 provides native async support. This means it can manage tasks that don't need to be completed in a specific order, allowing for more efficient execution of workflows. - Pydantic Validation: Prefect 2.0 comes with out-of-the-box Pydantic validation. This feature checks your data to ensure it's in the right format, adding an extra layer of security to your workflows. - Blocks: These are a way to store configuration information. They're secure, editable through the user interface, and they check your data types for you. This makes it easy to manage the settings for your flows and tasks. Blocks allow you to securely store UI-editable, type-checked configuration to external systems and provide an easy-to-use Key-Value Store. - Notifications: Prefect 2.0 can send notifications about the status of your workflows. This feature is available in the open-source Prefect 2 version, allowing you to stay updated on the progress of your workflows. - Subflows: This is a way to organize your flows into smaller, more manageable pieces. You can think of a subflow as a mini-flow that's part of a larger flow. Prefect 2.0 introduces a first-class subflows concept, providing a natural and intuitive way of organizing your flows into modular sub-components. Remember, these are just the basics. Prefect 2.0 is a powerful tool with a lot more to offer. I'd recommend checking out the official documentation for a more in-depth look.
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a
Could bot support Slack formatting? 🙂
instead of Subflows it could say Subflows
Should be possible to do in postprocessing / Slack webhook code without affecting the model itself
n
yes! i could do more to format the output prettily 🙂
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worth noting that marvin is neglecting to point out that workers have superseded agents as our "listening for work" process, but otherwise the above points are pretty solid
a
Yup! We are still temporarily using agents as we wait for some rough edges of workers to be sorted out. We might migrate first to process agent (although it says it is still in beta) and later to Docker agent (after it starts supporting private Docker registries).
n
hmm looks like we need to update the docs there, as the process worker is not in beta anymore. we removed the beta label (from most places) a couple month ago - i’ll check that out
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just for my info, what rough edges with workers are you waiting to be smoothed over?
a
okay good to know that process worker is not in beta anymore!
These are the rough edges: • https://github.com/PrefectHQ/prefect/issues/10764https://github.com/PrefectHQ/prefect-docker/issues/72 We run in Azure cloud and want to use both Azure storage (first ticket) and Azure container registry as private registry for Docker worker (second ticket)
First one was fixed two days ago, the latter unassigned