Allow opensearch-dashboard user to read its config (#4038)

Signed-off-by: Romain Tartière <romain@blogreen.org>
Signed-off-by: Peter Zhu <zhujiaxi@amazon.com>

Author: smortex

scripts/pkg/build_templates/opensearch-dashboards/deb/debian/postinst

@@ -37,6 +37,7 @@ echo "### You can start opensearch-dashboards service by executing"
 echo " sudo systemctl start opensearch-dashboards.service"
 
 # Set ownership and permissions
+chown -R root.opensearch-dashboards ${config_dir}
 chmod -R u=rwX,g=rX,o= ${config_dir}
 
 chown -R opensearch-dashboards.adm ${log_dir}

scripts/pkg/build_templates/opensearch-dashboards/rpm/opensearch-dashboards.rpm.spec

@@ -76,6 +76,7 @@ exit 0
 
 %post
 set -e
+chown -R root.%{name} %{config_dir}
 # Reload systemctl daemon
 if command -v systemctl > /dev/null; then
     systemctl daemon-reload