rancher/templates/issuer-rancher.yaml

{{- if eq .Values.tls "ingress" -}}
  {{- if eq .Values.ingress.tls.source "rancher" -}}
    {{- $certmanagerVer :=  split "." .Values.certmanager.version -}}
    {{- if or (.Capabilities.APIVersions.Has "cert-manager.io/v1beta1") (and (gt (len $certmanagerVer._0) 0) (eq (int $certmanagerVer._0) 0) (ge (int $certmanagerVer._1) 16)) }}
apiVersion: cert-manager.io/v1beta1
    {{- else if or (.Capabilities.APIVersions.Has "cert-manager.io/v1alpha2") (and (gt (len $certmanagerVer._0) 0) (eq (int $certmanagerVer._0) 0) (ge (int $certmanagerVer._1) 11)) }}
apiVersion: cert-manager.io/v1alpha2
    {{- else if or (.Capabilities.APIVersions.Has "certmanager.k8s.io/v1alpha1") (and (gt (len $certmanagerVer._0) 0) (eq (int $certmanagerVer._0) 0) (lt (int $certmanagerVer._1) 11)) }}
apiVersion: certmanager.k8s.io/v1alpha1
    {{- else }}
apiVersion: cert-manager.io/v1
    {{- end }}
kind: Issuer
metadata:
  name: {{ template "rancher.fullname" . }}
  labels:
{{ include "rancher.labels" . | indent 4 }}
spec:
  ca:
    secretName: tls-rancher
  {{- end -}}
{{- end -}}