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Jenkins to GitHub Actions Migration - Enterprise CI/CD Transformation

Migration GitHub Actions Jenkins Terraform Azure DevOps CI/CD Pipelines
flowchart LR
    J["🔧 Jenkins"]
    A["⚡ Azure DevOps"]

    G["🚀 GITHUB"]

    G1["GitHub Actions"]
    G2["Governance"]
    G3["Policy as Code"]
    G4["IaC"]

    J --> G
    A --> G
    G1 --> G
    G2 --> G
    G3 --> G
    G4 --> G

    style J fill:#6b7280,stroke:#4b5563,color:#fff
    style A fill:#6b7280,stroke:#4b5563,color:#fff
    style G fill:#3b82f6,stroke:#2563eb,color:#fff,stroke-width:3px
    style G1 fill:#22c55e,stroke:#16a34a,color:#fff
    style G2 fill:#22c55e,stroke:#16a34a,color:#fff
    style G3 fill:#22c55e,stroke:#16a34a,color:#fff
    style G4 fill:#22c55e,stroke:#16a34a,color:#fff

  

The Challenge

The organization operated with fragmented CI/CD infrastructure spread across Jenkins and Azure DevOps. This dual-platform setup generated significant licensing costs and created daily friction for development teams.

Developer Pain Points:

  • Developers couldn’t build their own pipelines — no reusable components existed
  • Teams patched together custom solutions that often broke in production
  • Every pipeline change required DevOps team support and intervention
  • Zero consistency across projects — each team implemented CI/CD differently
  • No standards, no governance, no shared best practices

The lack of self-service capabilities meant the DevOps team became a bottleneck, slowing down delivery across all projects.

My Solution

Executed a complete, zero-downtime migration to GitHub Enterprise. The solution evolved into a comprehensive platform with reusable building blocks:

  • Converted complex Groovy/YAML pipelines to optimized GitHub Actions workflows
  • Built a library of reusable workflow components that developers can compose themselves
  • Created comprehensive documentation explaining how to use each building block
  • Established governance policies and Policy as Code standards
  • Standardized all infrastructure provisioning via Terraform modules

The result: developers are now fully self-sufficient. They can build, modify, and maintain their own pipelines without DevOps intervention. Workflows are clean and readable — team members from other departments can review and understand them easily. Pipeline execution time dropped by an average of 30%.

The Impact

$$$
License Costs Saved
Unified
Developer Experience

Confidentiality Note: Due to NDA obligations, specific client names and proprietary details cannot be disclosed publicly. However, I'm happy to discuss this use case in general terms during a consultation—feel free to reach out if you'd like to learn more about the approach and methodology.

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