Cleaning docker logs if it's not configured correctly

daemon.json

{
          "log-driver": "json-file",
          "log-opts": {
                 "max-size": "10m",
                 "max-file": "3",
                 "labels": "production_status",
                 "env": "os,customer"
          }
}

loop.sh

#!/bin/bash
DIR=/var/lib/docker/containers
FILES=$(ls $DIR)
for f in $FILES
do
  echo "Processing $f dir..."
  # take action on each file. $f store current file name
  ls -lash $DIR/$f | grep .log

  LOGS=$(ls $DIR/$f/ | grep .log)

  for l in $LOGS
  do
    echo "emptying $l logfille"
    echo "" > $DIR/$f/$l
  done

done