Golang, Prometheus, Grafana Example

This is a simple example project demonstrating how to use Golang, Prometheus, and Grafana together. The Golang application exposes metrics, Prometheus scrapes these metrics, and Grafana visualizes the data.

Prerequisites

• Docker
• Docker Compose

Getting Started

1. Clone the repository:

   git clone https://github.com/danielmeloramos/sre-artigo.git
   cd sre-artigo

2. Build the Golang application:

   make build

3. Run the entire setup:

   make run

4. This command starts the Golang application, Prometheus, and Grafana containers.

• Access Grafana at http://localhost:3000 (default credentials: admin/admin).
• Add Prometheus as a data source in Grafana with the URL http://prometheus:9090.
• Create a dashboard in Grafana and visualize the myapp_requests_total metric sum(increase(myapp_requests_total[1m])) .

5. Stopping the Setup. To stop and remove all containers, use the following command:

   make clean

6. Notes

   • The Golang application runs on port 8080;
   • Prometheus is accessible at http://localhost:9090;
   • Grafana is accessible at http://localhost:3000 (default credentials: admin/admin).

7. Post Blog

https://danielmeloramos.com.br/site-reliability-engineering/

Feel free to customize the Golang application and the Prometheus/Grafana configurations based on your needs.

Replace https://github.com/your-username/your-repository.git with the actual URL of your Git repository.