https://github.com/alexellis/hash-browns

Generate SHA256 hashes in Go with Prometheus metrics
https://github.com/alexellis/hash-browns

cloud-native golang metrics monitoring prometheus

Last synced: about 1 month ago
JSON representation

Generate SHA256 hashes in Go with Prometheus metrics

Host: GitHub
URL: https://github.com/alexellis/hash-browns
Owner: alexellis
License: mit
Created: 2017-03-18T17:17:16.000Z (about 8 years ago)
Default Branch: master
Last Pushed: 2023-02-15T01:47:49.000Z (over 2 years ago)
Last Synced: 2025-04-27T06:52:33.329Z (about 1 month ago)
Topics: cloud-native, golang, metrics, monitoring, prometheus
Language: Go
Homepage:
Size: 293 KB
Stars: 79
Watchers: 6
Forks: 24
Open Issues: 1
Metadata Files:
- Readme: README.md
- Contributing: CONTRIBUTING.md
- License: LICENSE

README

# hash-browns

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](http://blog.alexellis.io/prometheus-monitoring/)

### Get started

* Initialize Docker Swarm locally

```sh
docker swarm init
```

* Deploy:

```sh
docker stack deploy tutorial --compose-file=./docker-compose.yml
```
* View logs:

```sh
docker service logs tutorial_hashbrowns
```

* View scrape targets

```sh
http://localhost:9090/targets
```

* View the site:

http://127.0.0.1:8080/

* Invoke the service to generate some logs

```sh
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)

```sh
make docker push manifest
```

### Notes for Raspberry PI:

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