ARCHIVED

This processor is no longer needed as the ottl library added a flatten function that does this and we have implemented this. https://github.com/open-telemetry/opentelemetry-collector-contrib/blob/main/pkg/ottl/README.md

OpenTelemetry JSON Log Flattener

NewRelic doesn't support nested JSON attributes in OpenTelemetry logs. To help alleviate these issues, this processor will flatten JSON at the top level. It turns messages like this:

{
  "name": "Test User",
  "address": {
    "street": "First Ave",
    "house": 1234
  },
  "occupants": [
    "Test User",
    "Test User 2",
    "Test User 3"
  ]
}

into

{
  "name": "Test User",
  "address.street": "First Ave",
  "address.house": 1234,
  "occupants": "[\"Test User\", \"Test User 2\", \"Test User 3\"]"
}

Using this processor

To add this processor to your OpenTelemetry Collector, follow the instructions for building a collector here: https://opentelemetry.io/docs/collector/custom-collector/

In your config, add the following:

processors:
  - github.com/jupiterone/oteljsonlogflattenerprocessor latest

In your collector config, add the following processor:

receivers:
  ...
exporters:
  ...
processors:
  - jsonlogflattener
pipelines:
  logs:
    receivers: [...]
    processors: [jsonlogflattener]
    exporters: [...]