should be a cluster issuer

clusters/ontime-dev/configs/cluster-issuer.yaml

@@ -1,8 +1,7 @@
 apiVersion: cert-manager.io/v1
-kind: Issuer
+kind: ClusterIssuer
 metadata:
   name: lets-encrypt-staging
-  namespace: kube-system
 spec:
   acme:
     server: https://acme-staging-v02.api.letsencrypt.org/directory

clusters/ontime-dev/configs/kustomization.yaml

@@ -1,5 +1,5 @@
 apiVersion: kustomize.config.k8s.io/v1beta1
 kind: Kustomization
 resources:
-  - issuer.yaml
+  - cluster-issuer.yaml
   - storageclass.yaml