log persistence folder parametrization

Issue-ID: OOM-145

Change-Id: I27c98398b6304e17540f6c74afe4e1d811450683
Signed-off-by: kerenj <keren.joseph@amdocs.com>
diff --git a/kubernetes/log/values.yaml b/kubernetes/log/values.yaml
index c70055b..af53915 100644
--- a/kubernetes/log/values.yaml
+++ b/kubernetes/log/values.yaml
@@ -1,6 +1,7 @@
 nsPrefix: onap
 pullPolicy: Always
 nodePortPrefix: 302
+dataRootDir: /dockerdata-nfs
 image:
   readiness: oomk8s/readiness-check:1.1.0
   logstash: docker.elastic.co/logstash/logstash:5.4.3