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Lesson 1: Developer Experience (Backstage)

🧠 The Concept (Explain Like I'm 5)

Developers want to write code, not fight with AWS, Terraform, and Kubernetes configs. Backstage (Internal Developer Portal) is an internal app store for developers. A developer clicks "New Node.js App", and Backstage automatically creates the Git repo, CI/CD pipeline, SonarQube project, and Kubernetes deployment YAML.

🏢 The Enterprise Context

  • Golden Paths: Instead of dictating rules, platform teams provide "Golden Paths". If a developer uses the Backstage template, they get logging, metrics, and security out-of-the-box.
  • Software Catalog: A single pane of glass showing who owns which microservice, its API documentation (TechDocs), and its current pagerduty status.

🗺️ Visual Architecture: The Software Scaffolder

flowchart LR
    Dev["Developer"] -->|Fills Form| BS["Backstage Portal"]

    BS -->|1. Creates Repo| Git["GitHub"]
    BS -->|2. Registers App| Cat["Software Catalog"]
    BS -->|3. Triggers CI| CI["GitHub Actions"]

    CI -->|Builds Image| ECR["Container Registry"]
    CI -->|Updates Manifests| CD["ArgoCD"]