values: rename invenio.extraConfig

* Renames invenio.extra_config to invenio.extraConfig to follow helm's
  naming conventions. Both variables are loaded for the moment to avoid
  issues. It also add a deprecation notice inside Notes.txt

charts/invenio/templates/NOTES.txt

@@ -1 +1,11 @@
-Invenio is ready to rock 🚀
+Invenio is ready to rock 🚀
+
+Your release is named {{ .Release.Name }}.
+
+{{- if .Values.invenio.extra_config}}
+
+DEPRECATION WARNING: 
+    `invenio.extra_config` has been renamed to `invenio.extraConfig` and will be
+    removed in a future release.
+
+{{- end }}

charts/invenio/templates/invenio-configmap.yaml

@@ -20,5 +20,8 @@ data:
   INVENIO_DATACITE_ENABLED: "False"
   INVENIO_LOGGING_CONSOLE_LEVEL: "WARNING"
   {{- range $key, $value := .Values.invenio.extra_config }}
-  {{ $key }}: {{ tpl $value $ | toYaml | indent 5 | trim }}
+  {{ $key }}: {{ $value | toYaml | indent 4 | trim }}
+  {{- end }}
+  {{- range $key, $value := .Values.invenio.extraConfig }}
+  {{ $key }}: {{ tpl $value $ | toYaml | indent 4 | trim }}
   {{- end }}

charts/invenio/values.yaml

@@ -37,9 +37,11 @@ invenio:
       - name: ""
         consumer_key: ""
         consumer_secret: ""
-  ## @param invenio.extra_config Extra environment variables (templated) to be added to all the pods.
-  ##
+  ## @param invenio.extra_config DEPRECATED: invenio.extraConfig instead
   extra_config: {}
+  ## @param invenio.extraConfig Extra environment variables (templated) to be added to all the pods.
+  ##
+  extraConfig: {}
   extra_env_from_secret: []
     # - name: NAME_OF_MY_ENV_VAR
     #   valueFrom: