@Marvin: Can you please provide an example of setting an environment variable for the flow container within the prefect.yaml? The target is for a docker-style work pool • Just to be precise: I don't want the env variable to be available on the worker, but inside the flow

To set an environment variable specifically for the flow container within a

prefect.yaml

file for a Docker-style work pool, you can override job variables by specifying them in the

env

field of your deployment definition. This allows you to dynamically set environment variables for the runtime environment of the flow run. Here's a basic example of how you might structure your

prefect.yaml

file:

yaml
version: 1
deployments:
  - name: my-flow-deployment
    work_pool:
      name: my-docker-pool
    infra_overrides:
      env:
        MY_ENV_VARIABLE: "my_value"

In this example,

MY_ENV_VARIABLE

will be set to

my_value

inside the flow container, but it won't be available on the worker itself. You can find more details on overriding job variables in the Prefect documentation. If you want to learn more about setting up and managing Docker work pools, you can refer to the Prefect infrastructure examples for Docker.