MULTI-REGION KUBERNETES FLEET

Automated provisioning and scaling of EKS clusters globally to ensure seamless failover.

Lighthouse Score

Uptime

99.999%

Avg Latency

N/A

Status

LIVE

PROJECT OVERVIEW

Automated provisioning and scaling of EKS clusters globally to ensure seamless failover.

This project showcases our expertise in devops, delivering a robust solution that exceeds industry standards for performance, reliability, and maintainability.

THE CHALLENGE

PROBLEM

A SaaS company's single-region EKS cluster had suffered three regional outages in one year, each costing 4+ hours of downtime and six-figure revenue losses.

OUTCOME

Deployed active/active EKS clusters across 4 AWS regions with ArgoCD GitOps sync and automated failover — achieving 99.999% uptime with zero manual intervention during the next 12 regional events.

ARCHITECTURE & CODE

cluster-autoscaler.yaml

YAML

1# Cluster Autoscaler with cross-AZ balancing and scale-down guard
2apiVersion: apps/v1
3kind: Deployment
4metadata:
5  name: cluster-autoscaler
6  namespace: kube-system
7spec:
8  replicas: 2 # HA: two replicas, leader election enabled
9  template:
10    spec:
11      containers:
12        - name: cluster-autoscaler
13          image: registry.k8s.io/autoscaling/cluster-autoscaler:v1.29.0
14          command:
15            - ./cluster-autoscaler
16            - --cloud-provider=aws
17            - --balance-similar-node-groups=true
18            - --skip-nodes-with-local-storage=false
19            - --scale-down-delay-after-add=5m
20            - --scale-down-unneeded-time=10m
21            - --max-graceful-termination-sec=600

DEPLOYMENT PIPELINE

ci/cd — deploy log

7 PASSED

BUILD COMPLETE

01▸ Linting Helm charts (4 charts, 3 environments)...

02✓ helm lint — 0 errors, 0 warnings

03▸ Running Conftest policy checks (OPA)...

04✓ 38 policy tests passed — no privilege escalation, no host PID

05▸ Syncing via ArgoCD to staging cluster...

06✓ Staging sync complete — all resources healthy

07▸ Running chaos engineering test (kill 2/6 nodes)...

08✓ Workloads rescheduled in 28s — SLA met (<60s)

09▸ Promoting to production (4 regions)...

10✓ us-east-1: synced ✓ eu-west-1: synced ✓

11✓ ap-southeast-1: synced ✓ ap-northeast-1: synced ✓

12✓ Cross-region health check: all green — failover test passed

PERFORMANCE AUDIT

lighthouse — performance report

LIGHTHOUSE PERFORMANCE

ACCEPTABLE — OPTIMISE BEFORE PROD

CORE WEB VITALS

LCP — Largest Contentful PaintTime until the largest element is rendered

2.4sGOOD

FID — First Input DelayResponsiveness to first user interaction

28msGOOD

CLS — Cumulative Layout ShiftVisual stability during page load

0.05GOOD

TTFB — Time to First ByteServer response time to first byte

220msIMPROVE

TECHNOLOGY STACK

KubernetesHelmArgoCDAWSPrometheus

INTERESTED?

Let's discuss how we can build something similar for your organization.