[stable/mongodb] Do not set mongo password if username and database are not defined (#4955)

* Do not set mongo password if username and database are not defined

* Bump chart version

stable/mongodb/Chart.yaml

@@ -1,5 +1,5 @@
 name: mongodb
-version: 1.0.1
+version: 1.0.2
 appVersion: 3.7.3
 description: NoSQL document-oriented database that stores JSON-like documents with dynamic schemas, simplifying the integration of data in content-driven applications.
 keywords:

stable/mongodb/templates/deployment.yaml

@@ -35,11 +35,13 @@ spec:
               key: mongodb-root-password
         - name: MONGODB_USERNAME
           value: {{ default "" .Values.mongodbUsername | quote }}
+        {{ if and .Values.mongodbUsername .Values.mongodbDatabase }}
         - name: MONGODB_PASSWORD
           valueFrom:
             secretKeyRef:
               name: {{ template "mongodb.fullname" . }}
               key: mongodb-password
+        {{ end }}
         - name: MONGODB_DATABASE
           value: {{ default "" .Values.mongodbDatabase | quote }}
         ports:

stable/mongodb/templates/secrets.yaml

@@ -14,8 +14,10 @@ data:
   {{ else }}
   mongodb-root-password: {{ randAlphaNum 10 | b64enc | quote }}
   {{ end }}
+  {{ if and .Values.mongodbUsername .Values.mongodbDatabase }}
   {{ if .Values.mongodbPassword }}
   mongodb-password:  {{ .Values.mongodbPassword | b64enc | quote }}
   {{ else }}
   mongodb-password: {{ randAlphaNum 10 | b64enc | quote }}
+  {{ end }}
   {{ end }}