EDK logging

[WillDaSilva]

The EDK should provide plugins that use it with logging facilities.

An example of an issue that can arise without such facilities provided:

(cron-ext) will ~/meltano/cron-ext (main) $ meltano invoke cron
2022-09-16T19:21:11.159996Z [info     ] Environment 'dev' is active
Unable to list crontab entries.

The first log line is from Meltano. The second is from calling structlog.get_logger(APP_NAME).error.

The EDK should ensure that the plugins that use it emit logs that match the logging configuration the Meltano instance that is calling it. Maybe to do this the EDK should provide a get_logger function that provides an appropriately configured logger.

[WillDaSilva]

There is the --meltano-log-json flag, and meltano.edk.logging.default_logging_config, but those seem to require a fair bit of boilerplate, and don't provide an out-of-the-box experience wherein the configuration inherits from the caller (Meltano).