SaaS Scaling: Zero-Downtime Deployment Architecture
Augmenting the Ops team to move from manual deployments to Kubernetes.
The Challenge
C.CRM was a victim of its own success. Deployments were manual, stressful events that required 2 hours of downtime on weekends. Rollbacks were impossible. The existing team was burnt out firefighting server issues.
The Solution
We augmented their team with 2 Senior DevOps Engineers. We containerized the monolith and migrated it to EKS (Kubernetes). We implemented GitOps using ArgoCD, allowing developers to deploy by simply merging a PR. We set up Horizontal Pod Autoscaling (HPA) to handle load automatically.
Architectural Strategy
AWS EKS with Karpenter for node scaling. Terraform for Infrastructure as Code (IaC).
Impact & Achievements
The engineering culture shifted from 'fear of deployment' to 'deployment on demand'. Feature velocity doubled as developers no longer waited for release windows.
Achieved SLA targets
Frequency (multiple times/day)
Infrastructure savings via Spot instances
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