[Helm] base64 encode secrets (#2492)

* Fix #2393

* Bump chart version

Co-authored-by: Roman Zabaluev <rzabaluev@provectus.com>

charts/kafka-ui/Chart.yaml

@@ -2,6 +2,6 @@ apiVersion: v2
 name: kafka-ui
 description: A Helm chart for kafka-UI
 type: application
-version: 0.4.2
+version: 0.4.3
 appVersion: latest
 icon: https://github.com/provectus/kafka-ui/raw/master/documentation/images/kafka-ui-logo.png

charts/kafka-ui/templates/secret.yaml

@@ -6,4 +6,6 @@ metadata:
     {{- include "kafka-ui.labels" . | nindent 4 }}
 type: Opaque
 data:
-  {{- toYaml .Values.envs.secret | nindent 2 }}
+  {{- range $key, $val := .Values.envs.secret }}
+  {{ $key }}: {{ $val | b64enc | quote }}
+  {{- end -}}