Apply the issuer configuration using kubectl :
Note: Writing a Controller usually requires programming knowledge (typically Go) and is outside the scope of a basic setup text, but tools like or Operator SDK can generate the boilerplate code for you. crd setup
kubectl apply -f my-cron.yaml
A Certificate Request Definition (CRD) is a Kubernetes resource that allows you to manage certificate requests and issuances. A CRD provides a way to define a certificate template, specify the issuer, and request a certificate. This simplifies the process of obtaining and managing certificates for your cluster. Apply the issuer configuration using kubectl : Note: