To prevent code changes from bypassing automated testing in a containerized application development workflow, what should you enforce?

Enabling binary authorization is a crucial step in ensuring that only trusted code is deployed in a containerized application development workflow. Binary authorization works by requiring builds to be signed by designated authorities before they can be deployed to production environments. This ensures that all code changes have been vetted and approved, effectively mitigating the risk of API errors or deploying untested code.

In a container environment, where the risk of deploying vulnerable or non-compliant images is significant, having a mechanism that guarantees that only pre-approved artifacts move forward in the deployment pipeline is essential. By enforcing signed builds, organizations can create a robust security posture and uphold quality control throughout the software development lifecycle.

The other options, while they contribute to an overall security strategy, do not directly prevent code changes from bypassing automated testing. Protecting branches and requiring pull request approvals can enforce reviews but do not guarantee that the actual code has been tested through automated pipelines. Leveraging RBAC helps manage access controls but doesn’t specifically address the integrity of the code that is being deployed. Finally, using Admission Controllers to verify requests is a useful approach for validating operations on resources within the Kubernetes cluster but does not impact the deployment readiness of the code itself. Thus, binary authorization is the most effective choice for ensuring that only