@Marvin I'm using

prefecthq/prefect:2.20.7-python3.9

base image to run flow on ECS. But I need to pip install

pyodbc

and getting error installing it in linux container. Seems I need to run

sudo apt-get install unixodbc-dev

before pip installing pyodbc as part of requirements.txt. How can I do that?

So you want to install

pyodbc

in a Linux container and it seems like you need to install

unixodbc-dev

before doing that. Got it! Which version of Prefect are you using? Prefect 2.x or 3.x? This will help me search the right documentation and provide an apt solution.

@Marvin Prefect 2

To get

pyodbc

and its dependency installed in your container, you'll need to customize your Dockerfile. Essentially, you'll want to ensure

unixodbc-dev

is installed before running

pip install

. Let me check the Prefect 2.x documentation first to see if there's any specific guidance on customizing the Dockerfile or installing OS-level dependencies. Hang tight for a moment! Here's the game plan: 1. Customize Dockerfile: You will need to extend the base image by adding a few more lines to install

unixodbc-dev

before

pyodbc

. 2. Prefect Docker Image: If you're building your Docker image using the Prefect framework, you can specify a custom Dockerfile. Let's see how you can tie everything together! Here’s an outline of what your Dockerfile should look like:

Dockerfile
# Use the Prefect base image
FROM prefecthq/prefect:2.20.7-python3.9

# Install the required system dependencies
RUN apt-get update && apt-get install -y unixodbc-dev

# Now install pyodbc via pip
RUN pip install pyodbc

# Copy your requirements.txt if you have additional Python packages
COPY requirements.txt /app/requirements.txt

# Install the Python packages
RUN pip install -r /app/requirements.txt

# Add the remaining Dockerfile steps as needed

### Instructions for Prefect YAML Deployment: You can specify your custom Dockerfile in your

prefect.yaml

deployment file like this:

yaml
name: ecs-worker-guide
prefect-version: 2.14.20
build:
  - prefect_docker.deployments.steps.build_docker_image:
      id: build_image
      requires: prefect-docker>=0.3.1
      image_name: <your-ecr-repo>
      tag: latest
      dockerfile: ./path/to/your/Dockerfile  # Path to the custom Dockerfile
push:
  - prefect_docker.deployments.steps.push_docker_image:
      requires: prefect-docker>=0.3.1
      image_name: '{{ build_image.image_name }}'
      tag: '{{ build_image.tag }}'

### References: 1. Dockerizing Python Applications 2. Integrations for Prefect on AWS ECS Guide These links should help you get more context and detailed steps. Hope this helps! Let me know if you face any other issues.