Add structured logging to newrelic daemon

[blkperl]

Summary

The current logging by the new relic daemon is unstructured making it difficult to use in log aggregation tooling

Desired Behavior

A configuration option exists to switch the newrelic daemon to structured logging

Possible Solution

There are many golang logging libraries to choose from that support structured logging

Additional context

Ref:

• https://newrelic.com/blog/how-to-relic/structured-logging
• https://kubernetes.io/blog/2020/09/04/kubernetes-1-19-introducing-structured-logs/

Example unstructured logs

2025/02/05 21:39:37.653586 (17) Warning: app "myapp" with run id "BVWmSdjEPdh_AC6zhD3n5yBno8mUAAMBACdHIQEAAAARAgRDPPbVcBFejH5m3mYtlxJR0Lrjs_Fmz-7w7jvsChNBkXzDbDcDAAkxMS41LjAuMTgAF2RydXBhbC02ODk2NmQ4NTRiLXdoaDR3ABBw" received response code: 503: NR service unavailable

2025/02/05 21:56:17.852275 (17) Info: Reporting to: https://rpm.newrelic.com/accounts/redacted/applications/redacted

2025/02/05 21:56:17.852613 (17) Info: app 'myapp' connected with run id 'BWBkVJWUqAnyAC6zhD281wdno97oAAMBACdHIQEAAAARAgRDKYYecBFejH5m3mYtlxJR0Lrjs_Fmz-7w7jvsChNBkXzDbDcDAAkxMS41LjAuMTgAF2RydXBhbC02NTk3NGQ2Yzk2LWprY2o0A'