@Marvin When pulling code from s3 with a prefect worker how can one install dependencies from a requirements.txt?

To install dependencies from a

requirements.txt

file when pulling code from S3 with a Prefect worker, you should use the

pip_install_requirements

step in your deployment configuration. Here is an example setup: 1. Define the deployment steps:

yaml
   pull:
     - prefect.deployments.steps.s3_download:
         id: download-code
         path: <s3://your-bucket/your-key>
     - prefect.deployments.steps.pip_install_requirements:
         directory: {{ download-code.directory }}
         requirements_file: requirements.txt

2. Example: This snippet assumes you have stored your code in an S3 bucket and included a

requirements.txt

file in the same directory.

yaml
- prefect.deployments.steps.s3_download:
    id: download-code
    path: <s3://your-bucket/your-directory/>
- prefect.deployments.steps.pip_install_requirements:
    directory: "{{ download-code.directory }}"
    requirements_file: requirements.txt

Resources: - Documentation: Prefect Deployment Steps - Example: Prefect GitHub Issue This should ensure your dependencies are installed properly when the worker runs your flow. Let me know if you need further assistance.

@Marvin isn't this part of prefect.deployment.steps.utility?

Yes, you're correct. The

pip_install_requirements

step is part of

prefect.deployments.steps.utility

. Here’s a concise example of how to use it to install dependencies from a

requirements.txt

file after pulling code from S3: 1. Define the deployment steps:

yaml
   pull:
     - prefect.deployments.steps.s3_download:
         id: download-code
         path: <s3://your-bucket/your-key/>
     - prefect.deployments.steps.utility.pip_install_requirements:
         directory: "{{ download-code.directory }}"
         requirements_file: requirements.txt

2. Example: This snippet assumes you have stored your code in an S3 bucket and included a

requirements.txt

file in the same directory.

yaml
- prefect.deployments.steps.s3_download:
    id: download-code
    path: <s3://your-bucket/your-directory/>
- prefect.deployments.steps.utility.pip_install_requirements:
    directory: "{{ download-code.directory }}"
    requirements_file: requirements.txt

For more information, visit the Prefect Deployment Guide. Let me know if you need more details.

@Marvin how can i mount persistent volumes in my prefect work pool

To mount persistent volumes in your Prefect work pool, you need to configure the work pool's infrastructure to include the volume mounts. Here's how you can do it: 1. Defining the Work Pool: When you create a work pool, you can specify infrastructure options, including volume mounts. 2. Using Infrastructure Blocks: You can define infrastructure blocks like KubernetesJob, DockerContainer, etc., to include volume mounts. Below is an example using a KubernetesJob block: 3. Example: KubernetesJob with Persistent Volumes:

yaml
   infrastructure:
     - type: kubernetes-job
       job_configuration:
         customizations:
           spec:
             template:
               spec:
                 volumes:
                   - name: my-persistent-storage
                     persistentVolumeClaim:
                       claimName: my-pvc
                 containers:
                   - name: my-container
                     volumeMounts:
                       - mountPath: /mnt/data
                         name: my-persistent-storage

Steps: 1. Create the Work Pool:

bash
   prefect work-pool create my-work-pool --type kubernetes-job

2. Configure the Work Pool: Edit the created work pool configuration to include your persistent volume claim as shown above. 3. Apply the Configuration: Apply the changes either via the Prefect UI or CLI. References: - Tutorial on Work Pools - Detailed guide on Work Pools This setup ensures that your workflows can leverage persistent volumes efficiently within a Prefect work pool. If you need more help, feel free to ask.

@Marvin when pushing to s3 does the content prior in the bucket get overriden?