Output supervisord log in the same format

[vvbogdanov87]

Is it possible to have supervisord's log in the same format?
I gather and parse docker(kubernetes) logs using fluentd. This is my config:

<source>
  type tail
  path /var/log/containers/*.log
  pos_file /var/log/fluentd-containers.log.pos
  time_format %Y-%m-%dT%H:%M:%S.%NZ
  tag kubernetes.*
  format json
  read_from_head true
</source>

<filter kubernetes.**>
  @type parser
  format /^(?<name>[^ ]*) (?<stream>[^ ]*) [^ ]* (?<log>.*)$/
  key_name log
  reserve_data true
  inject_key_prefix kubernetes.app.
</filter>

As a result I see this in kibana:

"log": "mongos_jetlore stdout | 2017-07-07T12:46:54.424+0000 I SHARDING [Balancer] distributed lock with ts: 595f82be07b9697e6caf0af3' unlocked.\n",
    "stream": "stdout",
    "kubernetes.app.name": "mongos_jetlore",
    "kubernetes.app.stream": "stdout",
    "kubernetes.app.log": "2017-07-07T12:46:54.424+0000 I SHARDING [Balancer] distributed lock with ts: 595f82be07b9697e6caf0af3' unlocked.",
    "docker": {
      "container_id": "4fb5b6422d57385d1f9cf26ddec83b71f2fe4cc2452af2240af75938ace98158"
    },

But also I see entries:

"stream": "stdout",
    "kubernetes.app.name": "2017-07-07",
    "kubernetes.app.stream": "11:41:06,240",
    "kubernetes.app.log": "success: goofys entered RUNNING state, process has stayed up for > than 1 seconds (startsecs)",

This happens because supervisor-stdout doesn't append supervisord's out. It appends log only for programs controlled by supervisord.
I tried to use this config:

[supervisord]
logfile=/var/log/supervisord.log ; (main log file;default $CWD/supervisord.log)
logfile_maxbytes=50MB        ; (max main logfile bytes b4 rotation;default 50MB)
logfile_backups=10           ; (num of main logfile rotation backups;default 10)
loglevel=info                ; (log level;default info; others: debug,warn,trace)
pidfile=/tmp/supervisord.pid ; (supervisord pidfile;default supervisord.pid)
nodaemon=true               ; (start in foreground if true;default false)
minfds=1024                  ; (min. avail startup file descriptors;default 1024)
minprocs=200                 ; (min. avail process descriptors;default 200)
stdout_events_enabled = true
stderr_events_enabled = true

But this doesn't work.