@Marvin, is configuring the logger to print json as simple as setting an env var? Looking at the logging.formatters here: https://docs.prefect.io/latest/api-ref/prefect/logging/formatters/#prefect.logging.formatters.JsonFormatter and this config file: https://github.com/PrefectHQ/prefect/blob/main/src/prefect/logging/logging.yml

It seems that setting an environment variable is indeed a way to configure various aspects of logging, including the level and whether to log print statements, but the results provided do not directly address configuring the logger to use a

JsonFormatter

. To set the logger to output in JSON format, you typically need to configure the logger with a

JsonFormatter

. This is usually done in code or through a logging configuration file, rather than solely through an environment variable. To configure logging in Prefect with a

JsonFormatter

, you would modify the

logging.yml

configuration file provided by Prefect or extend the existing logging configuration programmatically. You can look at the structure of the default logging configuration file for Prefect to understand how loggers and formatters are configured. An environment variable may be used as a switch to choose between standard and JSON formatting if your application or wrapper script is designed to support it, but that level of dynamic configuration would likely require additional coding on your part. To view official documentation regarding logging and formatters in Prefect, please refer to the Prefect Logging Guide. For details on how to use environment variables with Prefect configuration, visit the Prefect Settings Documentation.