@Marvin what is the best way to get secrets into env variables for a flow to use?

To get secrets into environment variables for a Prefect flow, here are some general steps and best practices: 1. Use a Secrets Manager: It's recommended to use a secrets manager to securely store and manage access to secrets. You can create the secrets within the manager and configure them to be accessible in the environment where the Prefect flow runs. 2. Inject Secrets into CI/CD: If you're using a CI/CD system, you can often inject secrets from the secrets manager directly into the CI/CD environment, ensuring they're available to your flows at runtime. These secrets should not be exposed in any scripts or configuration files. 3. Prefect Specific Methods: Consider using Prefect integrations or features designed for managing secrets. Prefect does have documentation on security practices, but details on handling secrets in flows are not directly provided in the excerpts I've found. 4. Environment Variables: When deploying flows, especially using Docker, you can add secrets as environment variables in your container, such as

DOCKER_USERNAME

and

DOCKER_PASSWORD

, making them available for your Prefect flows. Please note that the precise instructions depend on the infrastructure you're using (cloud, on-prem, or hybrid), the CI/CD system, and the secrets manager service you have chosen. Ensure you follow the instructions for the particular systems and tools you are using, and always follow the principle of least privilege when providing access to secrets. Additionally, Prefect's security page suggests that enterprise customers can also set up a SAML 2.0 connection for authentication, indicating that there may be additional ways to handle secret management within Prefect's enterprise tier. For further specifics and current best practices according to Prefect 2.x, it would be advisable to consult the latest Prefect documentation or community forums, since my knowledge has not been updated with the latest Prefect versions.