added logging level setting

src/main/helm/templates/deployment.yaml

@@ -58,6 +58,8 @@ spec:
             app.kubernetes.io/name: {{ .Release.Name }}
       containers:
       - env:
+          - name: LOGGING_LEVEL
+            value: "INFO"
           - name: HTTP_SERVER_PORT
             value: "8082"
           - name: GRPC_SERVER_MOCK