https://github.com/electrocucaracha/k8s-horizontalpodautoscaler-demo

Kubernetes Horizontal Pod Autoscaler demo
https://github.com/electrocucaracha/k8s-horizontalpodautoscaler-demo

Last synced: 8 days ago
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Kubernetes Horizontal Pod Autoscaler demo

• Host: GitHub
• URL: https://github.com/electrocucaracha/k8s-horizontalpodautoscaler-demo
• Owner: electrocucaracha
• Created: 2020-11-06T22:46:05.000Z (about 4 years ago)
• Default Branch: master
• Last Pushed: 2024-10-24T05:00:28.000Z (20 days ago)
• Last Synced: 2024-10-24T22:47:19.171Z (19 days ago)
• Language: Shell
• Homepage:
• Size: 257 KB
• Stars: 2
• Watchers: 2
• Forks: 0
• Open Issues: 2
• Metadata Files:
  • Readme: README.md

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README

        
# Kubernetes Horizontal Pod Autoscaler

[![License](https://img.shields.io/badge/License-Apache%202.0-blue.svg)](https://opensource.org/licenses/Apache-2.0)

[![Ruby Style Guide](https://img.shields.io/badge/code_style-rubocop-brightgreen.svg)](https://github.com/rubocop/rubocop)

## Summary

This project was created to demonstrate what components are required

by an application to consume [Kubernetes Horizontal Pod Autoscaler][1]

feature.

The [k6.yml](tests/k6.yml) provides a traffic simulator which

generates virtual users, those users perform HTTP requests against the

web server. The *Prometheus* instance collects custom metrics which

are aggreated by *Prometheus Adapter* and consumed by *Horizontal Pod

Autoscaler*, this last component triggers actions to scale out/in

replicas in order to distribute the workload.

![Dashboard](img/diagram.png)

## Virtual Machines

The [Vagrant tool][2] can be used for provisioning an Ubuntu Focal

Virtual Machine. It's highly recommended to use the  *setup.sh* script

of the [bootstrap-vagrant project][3] for installing Vagrant

dependencies and plugins required for this project. That script

supports two Virtualization providers (Libvirt and VirtualBox) which

are determine by the **PROVIDER** environment variable.

    curl -fsSL http://bit.ly/initVagrant | PROVIDER=libvirt bash

Once Vagrant is installed, it's possible to provision a Virtual

Machine using the following instructions:

    vagrant up

The provisioning process will take some time to install all

dependencies required by this project and perform a Kubernetes

deployment on it.

[1]: https://kubernetes.io/docs/tasks/run-application/horizontal-pod-autoscale/

[2]: https://www.vagrantup.com/

[3]: https://github.com/electrocucaracha/bootstrap-vagrant