Modern cloud-native CI/CD pipelines enable rapid software delivery but introduce new security challenges. We propose GenSecAI-Ops, a framework embedding specialized generative AI agents across the pipeline for proactive security and automated remediation. GenSecAI-Ops uses Retrieval-Augmented Generation (RAG) and eXplainable AI (XAI) for reliable security automation. Implemented using GitHub Actions and Jenkins, our framework demonstrates significant improvements in detection accuracy, remediation correctness, and developer trust while maintaining pipeline velocity. The approach provides a practical blueprint for integrating AI-driven security controls in DevSecOps workflows.