Works/mobilife_aws

Mobilife AWS High Availability Architecture

Designed a production-grade AWS runbook for Mobilife focused on scalability, caching, cost optimization, secure deployments, and operational readiness.

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Mobilife AWS architecture overview

This work focused on formalizing a new AWS EC2-based production architecture for Mobilife and turning it into a practical handover document that infrastructure and operations teams can run with confidence.

The target setup uses Route 53, ACM, an Application Load Balancer, Target Groups, an Auto Scaling Group, and EC2 Launch Templates to replace a more fragile single-instance model with a scalable, high-availability deployment pattern.

The runbook also emphasizes professional operating practices such as cache-aware application design, resource right-sizing to reduce monthly cost, secure secret delivery, repeatable Docker-based deployments, health checks, rollback procedures, and layered monitoring for infrastructure and application availability.

Highlights

  • Defined a Route 53 -> ALB -> Target Group -> Auto Scaling Group -> EC2 deployment architecture with TLS termination and API health checks.
  • Documented Launch Template bootstrap flow for Docker startup, ECR login, Secrets Manager environment loading, container replacement, and repeatable instance provisioning.
  • Included caching considerations for reducing database and application load, improving response times, and supporting more efficient scaling under peak traffic.
  • Outlined cost-optimization guidance through Auto Scaling, instance right-sizing, minimizing idle capacity, and reducing operational waste in the deployment flow.
  • Specified scaling policy recommendations using ASG target tracking with CPU-based scale-out behavior and safer deregistration for graceful traffic draining.
  • Added security and operational hardening guidance around TLS termination, controlled network access, secret handling, and SSM-based administration.
  • Added testing server observability guidance with Prometheus, Grafana, and Node Exporter for CPU, memory, disk, and network visibility.
  • Included production domain health-check strategy using Route 53 Health Checks and Prometheus Blackbox Exporter.
  • Specified AWS alerting patterns for ASG lifecycle events, service health degradation, and RDS CPU thresholds using CloudWatch and SNS.
  • Documented deployment, troubleshooting, and rollback steps so releases can be executed faster with lower operational risk.