@Marvin give me an template/show me an example of docker image that allows me to run a python script that is a prefect flow

Creating a Docker image to run a Python script that executes a Prefect flow involves a few core components: 1. The Python script itself, which contains your Prefect flow. 2. A

Dockerfile

that specifies how to build the Docker image. 3. Additional files like

requirements.txt

for Python dependencies. Here is a basic template you can use to get started:

Dockerfile

Dockerfile
# Use the official Prefect image as a parent image
FROM prefecthq/prefect:latest-python3.9

# Set the working directory in the container
WORKDIR /usr/src/app

# Copy the dependencies file to the working directory
COPY requirements.txt .

# Install any dependencies
RUN pip install --no-cache-dir -r requirements.txt

# Copy the content of the local src directory to the working directory
COPY src/ .

# Command to run when starting the container
CMD ["python", "./your_flow_script.py"]

requirements.txt

prefect>=2.0.0
...
# [Other dependencies as required for your flow]

src/your_flow_script.py

python
from prefect import flow

@flow
def your_prefect_flow():
    # Your flow logic here
    print("This is a Prefect flow within a Docker container.")

if __name__ == "__main__":
    your_prefect_flow()

To build and run the Docker container, you would use the following commands:

docker build -t your-prefect-image .
docker run your-prefect-image

This is quite a rudimentary template and could be greatly improved upon depending on your specific requirements and preferences, such as adding environment variable support, using a non-root user for better security, or integrating with Prefect Cloud or Server for flow orchestration.

hm - do you want to run a separate container each time you execute a flow run? or do you want a container to serve a flow that you could run many times on the same container?

@Nate the latter, indeed! Basically wanna run that flow every day through the container

cool then i think the above is pretty much what you want, except you'll want

from prefect import flow

@flow
def your_prefect_flow():
    # Your flow logic here
    print("This is a Prefect flow within a Docker container.")

if __name__ == "__main__":
    your_prefect_flow.serve("my-served-deployment") # starts a long-lived process

@Nate does prefect:2 exist?

ERROR: failed to solve: prefecthq/prefect:2-latest-python3.9: <http://docker.io/prefecthq/prefect:2-latest-python3.9|docker.io/prefecthq/prefect:2-latest-python3.9>: not found