MAJOR: kubernetes-ingress: Make controller.config templatable (#279)

Author: phihos

kubernetes-ingress/ci/daemonset-customconfig-templated-values.yaml

@@ -0,0 +1,6 @@
+controller:
+  kind: DaemonSet
+  config: |
+    rate-limit: "{{ .Values.controller.configVars.rateLimit | required "controller.configVars.rateLimit is required" }}"
+  configVars:
+    rateLimit: "ON"

kubernetes-ingress/ci/deployment-customconfig-templated-values.yaml

@@ -0,0 +1,5 @@
+controller:
+  config: |
+    rate-limit: "{{ .Values.controller.configVars.rateLimit | required "controller.configVars.rateLimit is required" }}"
+  configVars:
+    rateLimit: "ON"

kubernetes-ingress/templates/controller-configmap.yaml

@@ -34,5 +34,9 @@ data:
   syslog-server: {{ include "kubernetes-ingress.syslogServer" . }}
 {{- end }}
 {{- if .Values.controller.config }}
+{{- if eq "string" (printf "%T" .Values.controller.config) }}
+{{ tpl .Values.controller.config . | indent 2 }}
+{{- else }}
 {{ toYaml .Values.controller.config | indent 2 }}
 {{- end }}
+{{- end }}