Fluentd: Render Config as Template

This change updates the fluentd configmap-etc to render
.Values.conf.fluentd.template as a template, allowing for greater
flexibility in configuration.

Change-Id: I8809767c679c377e319ecc53960c55ae18e1b558

fluentd/templates/configmap-etc.yaml

@@ -23,5 +23,5 @@ metadata:
   name: {{ printf "%s-%s" $envAll.Release.Name "fluentd-etc" | quote }}
 type: Opaque
 data:
-  fluent.conf: {{ .Values.conf.fluentd.template | b64enc }}
+{{- include "helm-toolkit.snippets.values_template_renderer" (dict "envAll" $envAll "template" .Values.conf.fluentd.template "key" "fluent.conf" "format" "Secret") | indent 2 }}
 {{- end }}

fluentd/values.yaml

@@ -59,10 +59,11 @@ dependencies:
 
 conf:
   fluentd:
+    # This field is now rendered as a helm template!
     template: |
       <source>
         @type prometheus
-        port 24231
+        port {{ tuple "fluentd" "internal" "metrics" . | include "helm-toolkit.endpoints.endpoint_port_lookup" }}
       </source>
 
       <source>

tools/deployment/common/fluentd-daemonset.sh

@@ -40,10 +40,11 @@ deployment:
   type: DaemonSet
 conf:
   fluentd:
+    # This field is now rendered as a helm template!
     template: |
       <source>
         @type prometheus
-        port 24231
+        port {{ tuple "fluentd" "internal" "metrics" . | include "helm-toolkit.endpoints.endpoint_port_lookup" }}
       </source>
 
       <source>