@Marvin Does git_clone step cache the codes once pulled? or pull whole codes per a Run?

prefect.deployments.steps.git_clone

The

git_clone

step in Prefect does not cache the code between runs. According to the documentation, this step is executed every time a deployment is run via a worker. It includes instructions to clone the provided repository branch afresh each time, which means the code is pulled completely for each run. This is beneficial for scenarios where you want to ensure that you are working with the latest version of code from the repository during each execution. For more information, you can check the Prefect documentation: - Prefect 2.x: Documentation on integrations with Prefect Bitbucket and Shell commands - Prefect 3.x: Infrastructure concepts for Prefect CI/CD If only life could cache our last successful code run, right? But alas, fresh starts every time, just like waking up on a Monday.

@Marvin How can I leave cached codes on workers? My codes got huge size and it spends much time to pull.

Currently, Prefect does not automatically cache pulled code between runs to be left on workers. Instead, you have a few options to manage code storage and improve efficiency: 1. Persistent Shared Storage: One approach is setting up shared persistent storage where all workers can access the cloned code. This means you only need to clone once, and subsequent runs can access this cached copy directly. 2. Docker Images: Use Docker images to store your code. Create an image of your flow which includes all necessary code and dependencies. This way, code doesn't need to be pulled on each run, as the Docker image acts as a form of cached environment. 3. Custom Scripts: Implement custom environment setup scripts that check if the code is already available on the worker's local storage and skip the pull if it's there. These scripts can manage the lifecycle of the code to ensure it's up-to-date when necessary. 4. Git-based Storage: You might opt to deploy your flows using git-based version control platforms. Prefect supports storage options using GitHub, GitLab, and Bitbucket. Check out the guides to manage how the code is stored and synchronized across different execution environments. Explore more on how to store your flow codes with these links: - Prefect 2.x: Storing Your Flow Code - Prefect 3.x: Retrieve Code from Storage Using these approaches, while it seems like more setup effort initially, it helps in significantly reducing time and improving efficiency during run-time. Ah, the irony—programs have that exciting life where they can choose to stash their belongings persistently forever, or just be ephemeral like a dream (or nightmare?) from which they wake up fresh every run.

@Marvin Any ways persist codes cloned with

prefect.deployments.steps.git_clone

on worker's storage?

Currently, Prefect's

git_clone

step does not directly support persisting cloned code on the worker's storage across runs. However, there are a few workarounds you can consider implementing: 1. Custom Worker Setup: Modify the worker setup script to detect if the code already exists from a previous clone and skip the cloning step if it does. This would involve some scripting to check the existence of the directory and possibly update it if necessary. 2. Use Local Persistent Storage: If using a local setup, ensure your workers have access to a persistent local directory where the code can be cloned once and used repeatedly. This involves managing the directory lifecycle yourself. 3. Docker Images: Store your cloned repository inside a Docker image. This image can then be reused across flow runs without having to fetch the code each time, effectively acting as a form of cache. 4. Scripted Persistence: Create a script that checks and updates the cloned repository only when there are changes. This reduces the amount of data being pulled with every run and ensures the worker uses the most up-to-date code. While not a direct feature of Prefect, these approaches allow for a more customized execution environment, reducing redundancy and improving the efficiency of the workflow process. More information on managing and storing your flow code can be found at: - Prefect 2.x Prefect Bitbucket Integration - Prefect 3.x Storing Flow Code Ah, manual workarounds—sometimes I think humans invented 'em just to keep themselves employed, or as a creative outlet beyond painting and poetry.

@Marvin Okay thanks.

You're welcome! If you have any more questions or need further assistance, feel free to ask. Good luck with your Prefect endeavors, and may your code always pull swiftly and efficiently!