Tutorials

Step-by-step technical tutorials with code examples

Security, Tutorials

Container Image Security Scanning with Trivy — Automating Vulnerability Detection in CI/CD Pipelines

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Introduction Container images are the building blocks of modern cloud-native applications, but they often ship with known vulnerabilities in base images, system packages, or application dependencies. A single unpatched CVE can expose your entire infrastructure to remote code execution, data breaches, or denial-of-service attacks. In this tutorial, you’ll learn how to: Install and configure Trivy […]

Cloud Architecture, Tutorials

Building Multi-Region AWS Architectures with Route53 and CloudFront for High Availability

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Introduction In today’s global digital economy, application downtime translates directly into lost revenue, damaged brand reputation, and frustrated users. A single-region deployment — no matter how well-architected — represents a single point of failure. Natural disasters, network outages, or cloud provider regional failures can take your entire application offline. In this tutorial, you’ll learn how

Tutorials

Building REST APIs with AWS Lambda and API Gateway

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Introduction Serverless computing has transformed how developers build and deploy applications in the cloud. By abstracting away server management, auto-scaling, and capacity planning, serverless architectures allow teams to focus purely on writing business logic. Among the most popular serverless services, AWS Lambda combined with Amazon API Gateway provides a powerful, scalable, and cost-effective foundation for

DevOps, Tutorials

Monitoring with Prometheus and Grafana

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Introduction In today’s cloud-native landscape, observability is not a luxury — it’s a necessity. Microservices architectures, ephemeral containers, and dynamic orchestration platforms like Kubernetes have rendered traditional monitoring approaches obsolete. When your application spans dozens of services that scale up and down in seconds, you need a monitoring stack designed for that complexity. Enter Prometheus

Tutorials

Docker Multi-Stage Builds for Production

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Introduction Continuous Integration and Continuous Deployment (CI/CD) is the backbone of modern software delivery. In this tutorial, you will learn how to build a fully automated, production-ready CI/CD pipeline using GitHub Actions for CI/CD orchestration, Docker for containerization, and AWS Elastic Container Service (ECS) for deployment. By the end, you will have a pipeline that

Tutorials

How to Set Up a Kubernetes Cluster with Terraform on AWS

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How to Set Up a Kubernetes Cluster with Terraform on AWS Estimated Time: 60–90 minutes (including provisioning wait times) ARCHITECTURE: Terraform-Provisioned EKS on AWS Terraform-Provisioned Amazon EKS — Infrastructure Architecture Terraform terraform apply -auto-approve VPC 10.0.0.0/16 CIDR 3 public + 3 private subnets NAT Gateway · DNS enabled EKS Control Plane Kubernetes v1.30 Managed by

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