Usefull commands to manage Docker

1. Checking Unix process > htop
2. Docker container resource usage > docker stats
3. Running containers > docker ps
4. Clean all unused containers volumes > docker system prune
5. Check log file size of docker containers > du -chs /var/lib/docker/containers/*/*json.log
6. Clean log of docker containers without container restart > truncate -s 0 /var/lib/docker/containers/*/*-json.log;