Cloud Native

Kubernetes networking is often considered the “final boss” for system architects. While the platform abstracts away much of the complexity of container orchestration, the underlying networking model is a sophisticated web of IPAM, virtual interfaces, routing tables, and netfilter rules. Understanding how a packet travels from a user’s browser to a container deep within your cluster is essential for building scalable, secure, and resilient systems. In this guide, we will peel back the layers of the Kubernetes networking stack. ...

LocalStack has become a go-to tool for teams that build on AWS but want fast, reliable, and cost-free local environments for development and testing. This guide walks you from zero to production-ready workflows with LocalStack: installing it, wiring it into your application and infrastructure code, using it in CI, and confidently promoting that code to real AWS. Important: “Production with LocalStack” in this article means production-grade workflows (CI/CD, automated tests, infrastructure validation) that support your production AWS environment. LocalStack itself is not designed to replace AWS for serving production traffic. ...

Introduction Microservices promise speed, scalability, and team autonomy by decomposing a system into small, independently deployable services. But they also introduce complexity in distributed systems, data consistency, and operational overhead. This in-depth, zero-to-hero guide walks you through microservices architecture from fundamentals to production-ready practices. You’ll learn when to choose microservices, how to design services and APIs, what tooling to adopt, and how to deploy, secure, and observe them at scale. Code snippets and reference patterns are included to bridge theory and practice. We end with curated resources for further study. ...

Introduction Kubernetes has become the de facto standard for running containerized applications at scale. But the ecosystem can feel overwhelming: pods, deployments, services, ingress, operators, Helm, RBAC—the list goes on. This in-depth tutorial takes you from zero to hero with clear explanations, hands-on examples, and practical guidance. You’ll learn the mental model, set up a local cluster, deploy and expose applications, manage configuration and storage, scale reliably, secure your workloads, observe and debug issues, and ship to production using modern workflows. ...