diff --git a/rootfs/fluentd/deis-output/lib/fluent/plugin/out_deis.rb b/rootfs/fluentd/deis-output/lib/fluent/plugin/out_deis.rb
index 1a88a8b..a53afcc 100644
--- a/rootfs/fluentd/deis-output/lib/fluent/plugin/out_deis.rb
+++ b/rootfs/fluentd/deis-output/lib/fluent/plugin/out_deis.rb
@@ -17,8 +17,8 @@ class DeisOutput < Output
     config_param :tag, :string, :default => ""
     config_set_default :output_include_time, false
     config_set_default :output_include_tag, false
-    config_set_default :num_threads, 5
-    config_set_default :flush_thread_count, 5
+    config_set_default :num_threads, ENV['NUM_THREADS'] || "5"
+    config_set_default :flush_thread_count, ENV['FLUSH_THREAD_COUNT'] || "5"
 
     def initialize
       super
diff --git a/rootfs/fluentd/sbin/sources b/rootfs/fluentd/sbin/sources
index 467b915..ef53fda 100755
--- a/rootfs/fluentd/sbin/sources
+++ b/rootfs/fluentd/sbin/sources
@@ -5,6 +5,7 @@ then
 cat << EOF >> $FLUENTD_CONF
 <source>
   @type tail
+  @log_level warn
   path /var/log/containers/*.log
   pos_file /var/log/containers.log.pos
   tag kubernetes.*