#!/bin/bash

# Read docker ps output and format
docker_ps_output=$(docker ps --format '{{.Names}}: <b>{{.Image}}</b>\n' | column -t -o ' ' | sed ':a;N;$!ba;s/\n/\\n/g')

active_container_cnt=$(echo -e $docker_ps_output | grep -c "<b>")
echo "{ \"text\": \"$active_container_cnt\", \"tooltip\": \"$docker_ps_output\", \"class\": \"\", \"percentage\": 0 }"