Integrating load testing into a CI/CD pipeline using AWS CodeBuild and Grafana k6 involves automating performance tests to identify system issues under various loads. k6, an open-source tool, is used to test APIs, microservices, and websites for performance regressions or errors, while AWS CodeBuild, a managed continuous integration service, compiles code, runs tests, and prepares software packages for deployment. The process involves creating a test script in JavaScript to simulate virtual users, configuring load parameters, setting performance thresholds, and utilizing Docker within AWS CodeBuild to execute these tests. AWS CodeBuild can be integrated with various AWS services like Amazon EventBridge to automate the scheduling of load tests. The guide emphasizes using cloud tests for high-load scenarios and suggests running these tests during off-peak hours to minimize user disruptions. By establishing a systematic approach to performance testing, development teams can ensure reliability and efficiency in their software delivery pipelines, catching potential issues before they impact users.