Top 8 Go Autoscaling Projects

keda

24 5,151 9.6 Go

KEDA is a Kubernetes-based Event Driven Autoscaling component. It provides event driven scale for any container running in Kubernetes

Project mention: What's your experience with FaaS and Rust? | reddit.com/r/rust | 2022-06-29

Maybe one worth mentioning as well is Azure Container Apps. It's not FaaS per se, but more CaaS (Container as a Service). It auto-scales containers based on Keda triggers and actually runs on Kubernetes internally.
AutoSpotting

4 2,070 7.9 Go

Saves up to 90% of AWS EC2 costs by automating the use of spot instances on existing AutoScaling groups. Installs in minutes using CloudFormation or Terraform. Convenient to deploy at scale using StackSets. Uses tagging to avoid launch configuration changes. Automated spot termination handling. Reliable fallback to on-demand instances.

Project mention: Show HN: I built a service to help companies reduce AWS spend by 50% | news.ycombinator.com | 2022-02-03

Relevant: https://github.com/cloudutil/AutoSpotting
I've seen some third party services that automate migration to / replacement with spot instances, but haven't used them yet personally.
Going serverless, in many places, has been the most effective cost optimization for me.
SonarLint

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kube-metrics-adapter

0 407 5.8 Go

General purpose metrics adapter for Kubernetes HPA metrics
custom-pod-autoscaler

0 212 5.9 Go

Custom Pod Autoscaler program and base images, allows creation of Custom Pod Autoscalers
predictive-horizontal-pod-autoscaler

2 179 2.8 Go

Horizontal Pod Autoscaler built with predictive abilities using statistical models

Project mention: Advanced Features of Kubernetes' Horizontal Pod Autoscaler | dev.to | 2022-07-04

Another option would be predictive HPA by Digital Ocean, which will try to predict how many replicas a resource should and application have.
http-add-on

4 110 8.8 Go

Add-on for KEDA to scale HTTP workloads

Project mention: How to descale to zero? | reddit.com/r/kubernetes | 2022-04-03
kubectl-vpa-recommendation

1 19 7.3 Go

kubectl plugin to compare VPA recommendations to actual resources requests

Project mention: "kubectl-vpa-recommendation": A kubectl plugin to compare VPA recommendations to actual resources requests | reddit.com/r/kubernetes | 2022-01-27
Scout APM

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k8shorizmetrics

2 11 10.0 Go

Brains of the Kubernetes Horizontal Pod Autoscaler wrapped in a simple API.

Project mention: k8shorizmetrics is the brains of the Kubernetes Horizontal Pod Autoscaler wrapped in a simple Go API, useful for building your own autoscalers | reddit.com/r/golang | 2022-05-15

NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020). The latest post mention was on 2022-07-04.

Go Autoscaling related posts

k8shorizmetrics is the brains of the Kubernetes Horizontal Pod Autoscaler wrapped in a simple Go API, useful for building your own autoscalers
2 projects | reddit.com/r/golang | 15 May 2022
Implementing Event Driven Auto Scaling with Keda and Kubernetes
2 projects | dev.to | 12 May 2022
Trigger k8s Jobs with Sqs - need your help
1 project | reddit.com/r/kubernetes | 9 May 2022
How do you use HPA? Can it scale a Deployment if a script returns true?
1 project | reddit.com/r/kubernetes | 24 Apr 2022
How to descale to zero?
1 project | reddit.com/r/kubernetes | 3 Apr 2022
Azure Container Apps: Underneath The Hood (Quickstart)
2 projects | dev.to | 30 Mar 2022
KEDA operator failed to elect a leader.
1 project | reddit.com/r/kubernetes | 15 Mar 2022

Index

What are some of the best open-source Autoscaling projects in Go? This list will help you:

	Project	Stars
1	keda	5,151
2	AutoSpotting	2,070
3	kube-metrics-adapter	407
4	custom-pod-autoscaler	212
5	predictive-horizontal-pod-autoscaler	179
6	http-add-on	110
7	kubectl-vpa-recommendation	19
8	k8shorizmetrics	11

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