feat(cluster): Allowing a templated (tpl) cluster.initdb.owner value. (…

…cloudnative-pg#346)

Utilized the tpl function to evaluate the owner string as a template inside the Helm template.

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Signed-off-by: apriebeAVSystem <a.priebe+git@avsystem.com>
Co-authored-by: Itay Grudev <itay.grudev@essentim.com>
Signed-off-by: Zack Stevens <zack.st7@gmail.com>

charts/cluster/templates/_bootstrap.tpl

@@ -3,10 +3,13 @@
 bootstrap:
   initdb:
     {{- with .Values.cluster.initdb }}
-        {{- with (omit . "postInitApplicationSQL") }}
+        {{- with (omit . "postInitApplicationSQL" "owner") }}
             {{- . | toYaml | nindent 4 }}
         {{- end }}
     {{- end }}
+    {{- if .Values.cluster.initdb.owner }}
+    owner: {{ tpl .Values.cluster.initdb.owner . }}
+    {{- end }}
     postInitApplicationSQL:
       {{- if eq .Values.type "postgis" }}
       - CREATE EXTENSION IF NOT EXISTS postgis;