Example Cert-Manager Certificate manifest

apiVersion: certmanager.k8s.io/v1alpha1
kind: Certificate
metadata:
  name: test-cert-manager-certificate
  namespace: test-cert-manager-namespace
spec:
  acme:
    config:
    - domains:
      - cert-manager.kubernauts.sh
      http01:
        ingress: ""
  dnsNames:
  - cert-manager.kubernauts.sh
  issuerRef:
    kind: Issuer
    name: test-cert-manager-issuer
  secretName: test-cert-manager-secret