software/fluentd: Add time chunk key to output buffers

software/fluentd/buildout.hash.cfg

@@ -14,7 +14,7 @@
 # not need these here).
 [instance-profile]
 filename = instance.cfg
-md5sum = a1eb619b5353fe7ca090c7d9a2992df7
+md5sum = 9bb912ccc58047cbefe449f9d3783358
 
 [template-fluentd]
 filename = instance-fluentd.cfg

software/fluentd/instance.cfg

@@ -83,7 +83,8 @@ init =
       "  streamtool_uri %s\n"
       "  user %s\n"
       "  password %s\n"
-      "  <buffer tag>\n"
+      "  <buffer tag,time>\n"
+      "    timekey 1m\n"
       "    flush_mode interval\n"
       "    flush_interval 1m\n"
       "    flush_thread_count 4\n"