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/v1alpha2 kind: Issuer metadata: name: example-issuer spec: acme: ... solvers: - dns01: webhook: groupName: $WEBHOOK_GROUP_NAME solverName: $WEBHOOK_SOLVER_NAME config: ... <webhook-specific-configuration>