Script: info-docker
Shows the number of Docker containers in one of the states: created, restarting, running, removing, paused, exited, dead
Configuration
You have to add the docker command to the /etc/sudoers NOPASSWD of your user:
user ALL=(ALL) NOPASSWD: /usr/bin/docker ps -qf status=running
user ALL=(ALL) NOPASSWD: /usr/bin/docker ps -qf status=exited
user ALL=(ALL) NOPASSWD: /usr/bin/docker ps -qf status=dead
Module
[module/info-docker]
type = custom/script
exec = ~/polybar-scripts/info-docker.sh
interval = 60