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Citi LightSpeed: The New Enterprise CI/CD Platform
LightSpeed is Citi’s modern CI/CD platform designed to replace Jenkins and uDeploy for enterprise Java delivery. It standardizes cloud-native DevOps practices and provides:
·  Automated, scalable builds
·  Governance and compliance controls
·  Traceable, reproducible pipelines
·  Seamless promotion of artifacts across environments
High-level responsibilities:
Responsibility  Platform Component
Source trigger  GitHub
CI execution    Tekton on OpenShift
Artifact repository JFrog Artifactory
Pipeline orchestration & governance Harness
Runtime deployment target   Linux servers
How LightSpeed Works End-to-End
1.  Developer commits code to GitHub.
2.  GitHub triggers a Harness pipeline.
3.  Harness orchestrates the pipeline, instructing Tekton to build inside OpenShift.
4.  Tekton executes tasks (compile, test, package) in containers.
5.  RPM artifacts are stored in Artifactory.
6.  After governance approval, Harness deploys artifacts to target Linux environments.
Flow Diagram:
Developer Commit
       │
       ▼
GitHub Webhook Trigger
       │
       ▼
Harness Pipeline Orchestration
       │
       ▼
Tekton Pipeline on OpenShift (Kubernetes)
       ├─ Compile Java
       ├─ Run Tests
       ├─ Package RPM
       ▼
Artifactory Storage
       │
       ▼
Deployment to Linux Environments
Platform Foundation: OpenShift + Kubernetes
LightSpeed runs on OpenShift, Citi’s enterprise Kubernetes platform.
Key capabilities:
·  Managed Kubernetes clusters
·  Container runtime and orchestration
·  Secure multi-tenant execution
·  Network and secret management
·  Policy and compliance enforcement
Key idea: OpenShift provides the enterprise platform, Kubernetes orchestrates containers inside it, and LightSpeed pipelines run on this foundation for secure, isolated, and scalable builds.
Tekton Execution Model
Tekton is a Kubernetes-native CI framework running inside OpenShift.
·  Tekton is not a local client; it runs as Kubernetes resources (pods, tasks, pipelines).
·  Each build runs in dynamically created containers, using OpenShift for compute, networking, and security.
·  This removes the need for fixed build servers and enables horizontal scaling.
Execution flow: Developer push → Tekton pipeline → containers perform compilation, testing, packaging.
Governance and Control
LightSpeed embeds enterprise controls into the CI/CD workflow:
·  Immutable artifacts and versioned deployments
·  Manual approval gates and policy enforcement
·  Automatic rollback using package version management
Outcome: Fast delivery without compromising operational risk.
DevOps Alignment
LightSpeed maps standard enterprise DevOps concepts into its architecture:
·  Pipeline orchestration: Harness controls workflows and approvals
·  Containerized build execution: Tekton tasks run in pods
·  Immutable artifacts: RPM packages in Artifactory
·  Infrastructure abstraction: OpenShift provides compute
·  Promotion model: Artifacts promoted across environments
·  Observability: Centralized logs for pipelines and deployments
Strategic Outcome
LightSpeed delivers a modern, cloud-native CI/CD lifecycle with:
·  Scalable, reproducible builds
·  Traceable artifact management
·  Standardized governance and policy enforcement
·  Reduced manual deployment complexity
Bottom line: LightSpeed is the next-generation CI/CD platform for Citi’s enterprise Java delivery, replacing legacy tools with a secure, automated, and scalable ecosystem.