This adds valuable logging data to the open telemetry traces.
When the trace is not recording we don't bother doing anything as it is
relatively expensive to convert logrus data to otel just due to the
nature of how logrus works.
The way this works is that we now set a context on the logrus.Entry that
gets passed around which the hook then uses to determine if there is an
active span to forward the logs to.
Signed-off-by: Brian Goff <cpuguy83@gmail.com>
After comtemplation, the complexity of the logging module system
outweighs its usefulness. This changeset removes the system and restores
lighter weight code paths. As a concession, we can always provide more
context when necessary to log messages to understand them without having
to fork the context for a certain set of calls.
Signed-off-by: Stephen J Day <stephen.day@docker.com>
