feat: Allow configuring ingressClassName

Signed-off-by: Andres Montalban <amontalban@gmail.com>

Author: Andres Montalban

charts/fluentd/templates/ingress.yaml

@@ -14,6 +14,9 @@ metadata:
     {{- toYaml . | nindent 4 }}
   {{- end }}
 spec:
+  {{- if and .Values.ingress.className (semverCompare ">=1.18-0" .Capabilities.KubeVersion.GitVersion) }}
+  ingressClassName: {{ .Values.ingress.className }}
+  {{- end }
   {{- if .Values.ingress.tls }}
   tls:
     {{- range .Values.ingress.tls }}

charts/fluentd/values.yaml

@@ -380,6 +380,7 @@ fileConfigs:
 
 ingress:
   enabled: false
+  className: ""
   annotations: {}
     # kubernetes.io/ingress.class: nginx
     # kubernetes.io/tls-acme: "true"