Building GitOps CI/CD Pipeline for Kustomize Application using GitHub Actions

In this blog post, I will demonstrate how I built a cross-repository GitOps CI/CD pipeline for Kustomize application leveraging GitHub Actions Reusable workflow and Cross-repository GitOps pattern.

Table of Contents

1. Workflow Architecture and Design
   • Reusable workflow with workflow_call
   • Cross-repository GitOps pattern
   • GitHub App authentication strategy
2. Implementation Details
   • Dynamic Kustomize configuration updates
   • Multi-environment support with overlays
   • Automated git operations and commits
3. Common Issues and Solutions
   • yq version compatibility across environments
   • Authentication and permission troubleshooting
   • Git configuration for automated commits
4. Integration and Usage
   • Calling from application repositories
   • ArgoCD synchronization workflow