Pipeline Architecture

Pipeline architecture describes how CI/CD workflows are structured so that many repositories can share the same delivery logic without losing necessary flexibility.

Scope

This topic includes:

  • reusable workflows
  • shared job composition patterns
  • repository-level workflow wrappers or entry points
  • consistency of validation stages across repositories

Relevant Tools

  • GitHub Actions reusable workflows
  • repository-local workflow files that call shared automation
  • versioned workflow repositories or shared action definitions

Current Context

Reusable workflows are a visible part of the S-CORE infrastructure. That is important in a multi-repository model because it reduces duplicated YAML, makes policy changes easier to roll out, and gives contributors a more predictable CI experience.

Typical Work Items

  • define common workflow stages such as build, test, scan, and publication preparation
  • separate shared pipeline logic from repository-specific triggers or parameters
  • document when a repository should extend the shared model instead of replacing it
  • make workflow reuse easy to understand for new contributors

Practical Questions

  • Which stages should be mandatory across repositories?
  • How are reusable workflows versioned and updated safely?
  • Where should repository-specific exceptions be documented?
  • How should pipelines surface results that matter to developers, maintainers, and stakeholders?

Why It Matters

Good pipeline architecture reduces maintenance cost and improves transparency. It also strengthens traceability by making automation behavior easier to review and reason about across repositories.