Edge Infrastructure, Simplified.

High-density ARM edge cluster replaces AWS

IG CloudOps

IG CloudOps had evolved its CloudOps platform through several infrastructure generations – from single VMs to a full Kubernetes setup on AWS. While the platform scaled effectively, cloud costs rose sharply, particularly for compute-heavy workloads.

The team sought a way to regain control of performance, cost, and hardware flexibility without re-architecting their microservices platform.

The Challenge

Even with a well-structured cloud deployment, IG CloudOps faced three persistent issues:

Escalating AWS spend

Spot pricing offered some relief but monthly costs remained unpredictable and high.

Compute inefficiency

ARM64 workloads were cost-effective per core, but EC2 pricing limited density.

Vendor dependency

Scaling or experimenting with hybrid workloads required significant additional spend.

Solution

Working with Scaler Pi, IG CloudOps transitioned from AWS to an on-premise Raspberry Pi 5 cluster. Each device was pre-configured, hardened, and monitored via the Scaler Pi Device Manager.

The new deployment mirrored the previous AWS environment, running Kubernetes on ARM64 across a fleet of Raspberry Pi nodes. Dedicated virtualisation units were included to handle non-containerised workloads. The system integrated with existing monitoring and CI/CD pipelines, ensuring a seamless migration.

Key elements included:

  • High-density Raspberry Pi 5 cluster replacing EC2 ARM instances

  • Hardened OS with built-in telemetry and alerting

  • Prometheus + Grafana observability stack

  • On-prem automation and remote management via Scaler Pi platform

Results

The move delivered a step-change in operational efficiency and cost control.

  • ~67% lower OpEx versus AWS equivalent spend

  • CapEx recovery within two months of previous cloud billing

  • Improved density per watt and per £ — higher compute power within the same footprint

  • Predictable monthly operating costs without reliance on spot markets

Performance remained on par with the previous cloud setup, with improved fault tolerance through a larger node count.

Technical Overview

Scaler Pi handled every stage of deployment — from hardware build and OS hardening to integration with IG CloudOps’ monitoring stack. Each device was shipped ready to join the cluster and automatically register to the management platform, ensuring a consistent, production-grade setup from day one.

Fully managed Raspberry Pi infrastructure

Simplified scalability with modular, swappable nodes

No re-architecting required — migrated containers ran natively on ARM

Complete visibility through unified monitoring and alerting

Outcome

By moving to Raspberry Pi-based infrastructure, IG CloudOps cut long-term costs while retaining full control over its compute environment. The project proved that a modern, ARM-powered on-prem cluster can deliver enterprise-grade performance without the cloud overhead — setting a new baseline for predictable, high-efficiency edge operations.