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#03

CI/CD Pipeline Design

Robust integration and deployment pipelines with GitHub Actions, auto-scaling runners, and multi-cloud deployments.

GitHub Actions GitHub Actions Argo CD Docker Docker Cloudflare

Problem

Slow pipelines, lack of isolation between jobs, saturated runners at peak hours, and manual deployments risking drift between environments.

Solution

Actions Runner Controller (ARC) with auto-scaling to 0 when idle, distributed dependency caching, GitOps push-on-tag deployments into Argo CD.

Stack

  • GitHub Actions with ARC (Actions Runner Controller)
  • Self-hosted runners on k3s, scaled 0-N
  • Docker BuildKit with layer caching
  • Cloudflare Pages + R2 for static frontends

Outcomes

  • Cold start of jobs: <30s (was 3+ min)
  • Parallelism capacity: 50+ concurrent jobs
  • Reproducible deploys: tag → production in <5 min
  • Repository: pending
  • Demo: pending