Document the differences between this plugin and the built-in nrlogs output

[philomory]

There should be at least some mention of Fluent-Bit's built-in nrlogs output, and what benefits this plugin might offer over that one to justify the complexity of using an external plugin.

[cameronattard]

+1, very confusing for new users.

[woehrl01]

As this was confusing for me, too, let me share my findings which have been validated by newrelic support.

The major difference between both are that this output plugin is maintained by newrelic whereas as the nrlogs output plugin is maintained by fluentbit.

I have successfully switched to using the nrlogs plugin from fluentbit as this allows me to easily use the latest fluentbit version without waiting for an update from newrelic.

Besides different values on some added attributes about plugin source, I haven't seen a difference.

I'd suggest using nrlogs if you want to use the latest fluentbit version.