docker_exporter

docker-exporter

A Prometheus exporter for Docker container metrics. Collects CPU, memory, network stats, and container events (OOM kills) from the Docker API and exposes them at /metrics on port 8080.

Supports Docker Swarm — containers are labeled with serviceName and serviceID when Swarm labels are present.

Metrics

Usage

Docker

docker run -d \
  -p 8080:8080 \
  -v /var/run/docker.sock:/var/run/docker.sock \
  alexnav/docker-exporter

Docker Compose

services:
  docker-exporter:
    image: alexnav/docker-exporter
    ports:
      - "8080:8080"
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock

Metrics are available at http://localhost:8080/metrics.

Building

go build -o docker-exporter ./cmd/main.go
./docker-exporter

Or with Docker:

docker build -t docker-exporter .

Requirements

• Docker socket access (/var/run/docker.sock)
• Docker API compatible with the running daemon (version negotiation is automatic)