OpenTelemetry Log Sampling Demo in Go

This project demonstrates how to implement OpenTelemetry logging in Go with a simple counter application that sends logs to an OpenTelemetry Collector.

Prerequisites

• Go 1.23.5 or later
• Docker and Docker Compose
• OpenTelemetry Collector

Project Structure

The project consists of:

• A Go application that generates logs with a counter
• An OpenTelemetry Collector configuration
• Docker Compose setup for running the collector

Installation

1. Clone the repository:

   git clone github.com/RichardBray/otel-log-sampling-go
   cd otel-log-sampling-go

2. Install dependencies:

   go mod downloa

This configuration:

• Receives OTLP logs via gRPC (4317) and HTTP (4318)
• Processes logs in batches
• Exports logs to debug output for demonstration

Running the Application

1. Start the OpenTelemetry Collector:

   docker-compose up

2. Run the Go application:

   go run main.go

The application will:

• Initialize an OTLP HTTP log exporter
• Create a logger provider with batch processing
• Generate logs every second with an incrementing counter

Code Example

The main application logic can be found in main.go: d

## Configuration

The OpenTelemetry Collector is configured in `otel-collector-config.yaml`:


This configuration:
- Receives OTLP logs via gRPC (4317) and HTTP (4318)
- Processes logs in batches
- Exports logs to debug output for demonstration

## Running the Application

1. Start the OpenTelemetry Collector:
```bash
docker-compose up

2. Run the Go application:

   go run main.go

The application will:

• Initialize an OTLP HTTP log exporter
• Create a logger provider with batch processing
• Generate logs every second with an incrementing counter