This repository contains:

• A Quick-Start recipe for monitoring an application with Prometheus.
• A tiny web-server for creating SHA256 hashes with a /metrics endpoint

Read more on the related blog post

• Initialize Docker Swarm locally

  docker swarm init

• Deploy:

  docker stack deploy tutorial --compose-file=./docker-compose.yml

• View logs:

  docker service logs tutorial_hashbrowns

• View scrape targets

  http://localhost:9090/targets

• View the site:

  http://127.0.0.1:8080/

• Invoke the service to generate some logs

  curl -d test http://localhost:8080/hash
  
  9f86d081884c7d659a2feaa0c55ad015a3bf4f1b2b0b822cd15d6c15b0f00a08

• Open Prometheus:

  http://127.0.0.1:9090/

  View metrics such as hash_seconds_sum hash_seconds_count and hash_seconds_bucket

• Build the image (optional)

  make docker push manifest

A multi-arch Docker image is available, so you can use the same instructions.