+if [ -z ${JDBC_USERNAME} ]; then
+ export JDBC_USERNAME=holmes
+ echo "No user name is specified for the database. Use the default value \"$JDBC_USERNAME\"."
+fi
+
+if [ -z ${JDBC_PASSWORD} ]; then
+ export JDBC_PASSWORD=holmespwd
+ echo "No password is specified for the database. Use the default value \"$JDBC_PASSWORD\"."
+fi
+
+if [ -z ${DB_NAME} ]; then
+ export DB_NAME=holmes
+ echo "No database is name is specified. Use the default value \"$DB_NAME\"."
+fi
+
+sed -i "s|user:.*|user: $JDBC_USERNAME|" "$main_path/conf/rulemgt.yml"
+sed -i "s|password:.*|password: $JDBC_PASSWORD|" "$main_path/conf/rulemgt.yml"
+sed -i "s|url:.*|url: jdbc:postgresql://$URL_JDBC/$DB_NAME|" "$main_path/conf/rulemgt.yml"