Tenant chart: : add extra resources capability (#1643)

This commit introduces an extraResources value which is directly
rendered as part of the chart like a regular Helm template.
This allows users to add some Kubernetes object they might need as part
of their cluster configuration.
I added in the comment an example of my use case because I use a
different type of ingress and it is easier to configure it this way.

Closes: #1642

Co-authored-by: Pedro Juarez <pjuarezd@users.noreply.github.com>

helm/tenant/templates/_helpers.tpl

@@ -82,3 +82,17 @@ Selector labels Operator
 app.kubernetes.io/name: {{ include "minio-operator.name" . }}
 app.kubernetes.io/instance: {{ printf "%s-%s" .Release.Name "console" }}
 {{- end -}}
+
+
+{{/*
+Renders a value that contains template.
+Usage:
+{{ include "minio-operator.render" ( dict "value" .Values.path.to.the.Value "context" $) }}
+*/}}
+{{- define "minio-operator.render" -}}
+  {{- if typeIs "string" .value }}
+    {{- tpl .value .context }}
+  {{- else }}
+    {{- tpl (.value | toYaml) .context }}
+  {{- end }}
+{{- end -}}

helm/tenant/templates/extra-resources.yaml

@@ -0,0 +1,4 @@
+{{- range .Values.extraResources }}
+---
+{{- include "minio-operator.render" (dict "value" . "context" $) }}
+{{- end }}