A small set of utility classes for setting up logback and a helper to create logging messages suitable for the Spotify internal log parsing infrastructure.
The logstash-logback-encoder is used to log in the JSON format.
The primary motivation is provide any Java service running inside a container with Kubernetes (k8s) or Helios a way to log in a structured format.
The general flow for a log message running on k8s is as follows.
- Log a message as part of your service code (e.g.
LOG.info()). - Logback configuration will output to the logs to stdout.
- Docker captures messages from stdout and logs to file.
- Fluentd reads from log file and sends to a logging service (e.g. elk stack, stackdriver, splunk, etc).
Instead of writing directly to a given logging service we chose this approach to more easily switch between providers without needing to modify as little code as possible.
This software is released under the Apache License 2.0. More information in the file LICENSE distributed with this project.