Securing Istio Service Mesh
cert-manager can be integrated with Istio using the project istio-csr. istio-csr will deploy an agent that is responsible for receiving certificate signing requests for all members of the Istio mesh, and signing them through cert-manager.
istio-csr will sign all control plane and workload certificates via your chosen cert-manager Issuer.
Please follow the instructions for installing and using istio-csr on the project page.