Worked on the cert-manager/aws-privateca-issuer repository to enhance deployment reliability by migrating the kube-rbac-proxy image to registry.k8s.io and upgrading it to version 0.5.0. This change addressed persistent 404 errors caused by the previous registry path, resulting in more dependable image pulls and smoother certificate issuance workflows. The approach prioritized configuration management and containerization best practices, using YAML to ensure compatibility and avoid introducing new flag-related issues. By maintaining the image version while updating the registry host, the work improved downstream reliability for Kubernetes-based deployments, reflecting a careful balance between stability and necessary modernization within DevOps environments.