docker_exporter

Docker Exporter for Prometheus

This Go application exports Docker container metrics for Prometheus monitoring.

Features

• Collects metrics such as CPU, memory, disk, and network usage for Docker containers.
• Exposes metrics in Prometheus format for monitoring and alerting.

Prerequisites

• Go installed on your system (Installation Guide)
• Docker installed and running on your system (Installation Guide)

Installation

1. Clone the repository:

git clone https://github.com/yourusername/docker-exporter.git

build the application

1. cd docker-exporter
2. go mod tidy
3. go build

Usage

1. run the exporter

./docker-exporter

The exporter will start collecting Docker container metrics and expose them on http://localhost:8815/metrics.

Add the Metrics endpoint to Prometheus

scrape_configs:
  - job_name: 'docker-exporter'
    static_configs:
      - targets: ['localhost:8815']

Restart Prometheus to apply the configuration changes.

Access Prometheus web UI (http://localhost:9090) and query the Docker Exporter metrics.

Metrics

The Docker Exporter exposes the following metrics:

container_status: Status of the Docker container (0 = created, 1 = running, 2 = stopped)
disk_utilization: Disk utilization of the Docker container in kB/s
memory_usage: Memory usage of the Docker container in MB
network: Network usage of the Docker container in Mbps
cpu_utilization: CPU utilization of the Docker container in %