AWS Lambda Logs (Go)

Overview

This guide explains how to enable application and platform logs for a Go (Golang) AWS Lambda function using the OpenTelemetry Collector Lambda Layer, and export them to KubeSense Logs.

What this collects: This setup collects Lambda platform logs and function logs via the Lambda Telemetry API receiver (telemetryapi).

1) Add the OpenTelemetry Collector Lambda Layer

Add the OpenTelemetry Collector Lambda Layer to your Lambda function.

arn:aws:lambda:<region>:184161586896:layer:opentelemetry-collector-<amd64|arm64>-0_19_0:1

Example (x86_64, us-east-1):

arn:aws:lambda:us-east-1:184161586896:layer:opentelemetry-collector-amd64-0_19_0:1

Choose the correct:

Region
Architecture (amd64 or arm64)

2) Set Lambda environment variables (logs-only)

Set these environment variables in your Lambda configuration:

AWS_LAMBDA_EXEC_WRAPPER=/opt/otel-instrument
OPENTELEMETRY_COLLECTOR_CONFIG_URI=/var/task/collector.yaml
OTEL_SERVICE_NAME=<SERVICE_NAME>

OTEL_SERVICE_NAME should reflect your application/service name (for example: payments-lambda).

3) Add `collector.yaml` (logs pipeline only)

Place a collector.yaml file in the Lambda root directory and include it in your deployment package.

receivers:
  telemetryapi:
    types: ["platform", "function"]

  otlp:
    protocols:
      grpc:
        endpoint: "localhost:4317"
      http:
        endpoint: "localhost:4318"

processors:
  batch:

  resource:
    attributes:
      - action: insert
        key: kubesense.cluster
        value: <CLUSTER_NAME> # Provided by KubeSense team (e.g., Kreditbee)
      - action: insert
        key: kubesense.env_type
        value: legacy

exporters:
  otlphttp/kubesense-logs:
    endpoint: "http://<KUBESENSE_LOG_BACKEND_HOST>:30055" # KubeSense Logs endpoint
    tls:
      insecure: true

  debug:
    verbosity: detailed

service:
  pipelines:
    logs:
      receivers: [telemetryapi]
      processors: [resource, batch]
      exporters: [otlphttp/kubesense-logs]

Fill in placeholders: Replace <CLUSTER_NAME> and <KUBESENSE_LOG_BACKEND_HOST> with the values provided by the KubeSense team.

4) Deploy and confirm

Confirm these are in place:

OpenTelemetry Collector Lambda Layer attached
Required environment variables set
collector.yaml included in the Lambda deployment package

Then invoke your Lambda and verify logs appear in KubeSense.

Reference

For official OpenTelemetry Lambda Collector releases and documentation, see: https://github.com/open-telemetry/opentelemetry-lambda/releases