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Lessons (11)

• Deployments, ReplicaSets & Rollouts

  … A Deployment is that shift manager for your pods.  Deployment → ReplicaSet …

• Monolith vs Microservices

  … one deployable"] direction LR U[Users module] --- O[Orders module] --- P[Payments module] --- I[Inventory module] DB1[(One …

• Why Kubernetes?

  … one or more containers running together Pods Deployment Keeps N identical pods running; handles rollouts Deployments Service A …

• Helm, kubectl Cheat Sheet & Best Practices

  … Helm, the package manager The big idea Installing an app by hand means writing a Deployment, a Service …

• Choosing an Architecture

  … a realistic example mermaid flowchart TB subgraph Mono["🏢 Modular monolith (one deployable)"] direction LR subgraph Ord["📦 Ordering: Hexagonal …

• Kubernetes Cluster Architecture

  … apply Deployment (replicas: 3) A- E: store desired state C- A: watch: new Deployment → create ReplicaSet → create 3 …

• Vertical Slice Architecture & the Modular Monolith

  … A modular monolith is one deployable application divided into strongly separated modules , each owning its own code and …

• Architecture Patterns at Scale

  … out Central service capacity Microservices Independent domain ownership/deployments Distributed operations and contracts Serverless Bursty event-driven work …

• Pods

  … In practice you create a Deployment (next lesson), which creates and replaces pods for you. What containers in …

• What Is Software Architecture?

  … No customer can read another customer's orders Deployability Can we ship safely and often? Deploy many times …

• Scaling & Health Probes

  … a metric (CPU by default) and adjusts a Deployment's replica count to keep it near a target …