Issuer is a generic ACME solver. The actual work is done by an
external service. Look at the respective documentation of
View more webhook solvers at https://github.com/topics/cert-manager-webhook.
Here is an example of how webhook providers are to be configured. All
providers will contain their own specific configuration however all require a
apiVersion: cert-manager.io/v1kind: Issuermetadata:name: example-issuerspec:acme:...solvers:- dns01:webhook:groupName: $WEBHOOK_GROUP_NAMEsolverName: $WEBHOOK_SOLVER_NAMEconfig:...<webhook-specific-configuration>