[polybar] Add docker module and fix font issues

.config/polybar/bar.ini

@@ -58,17 +58,18 @@ fixed-center = true
 background = ${colors.background}
 foreground = ${colors.foreground}
 
-font-0 = "Droid Sans Mono:size=16:antialias=true;1"
+font-0 = "RobotoMono-Regular:size=16:antialias=true;1"
 ; https://fontawesome.com/cheatsheet/free
 font-1 = "FontAwesome:size=16:antialias=true;2"
 font-2 = "Material Icons:size=16:antialias=true;1"
-font-3 = NotoSans-Regular:size=18:weight=bold:antialias=true;2
-font-4 = NotoSans-Regular:size=28:weight=bold:antialias=true;-12
+font-3 = "NotoSans-Regular:size=18:weight=bold:antialias=true;2"
+font-4 = "NotoSans-Regular:size=28:weight=bold:antialias=true;-12"
 font-5 = "FontAwesome:size=21:antialias=true;4"
+font-6 = "Font Awesome 5 Brands-Regular-400:size=32:antialias=true;1"
 
 modules-left = polywins
 modules-center = custom_date
-modules-right = updates cpu_bar memory_bar vpn network_usage alsa_bar
+modules-right = updates cpu_bar memory_bar docker vpn network_usage alsa_bar
 
 cursor-click = pointer
 cursor-scroll = ns-resize

.config/polybar/modules.ini

@@ -174,3 +174,10 @@ label-charging = %percentage%% 
 format-discharging = <label-discharging>
 label-discharging = %percentage%% 
 label-full = 
+
+[module/docker]
+type = custom/script
+exec = ~/.config/polybar/scripts/docker
+exec-if = docker ps -q
+interval = 30
+label = "%output%"

.config/polybar/scripts/docker

@@ -0,0 +1,24 @@
+#!/usr/bin/env bash
+
+declare -A STATUS=(
+    [running]=#43A047
+    [exited]=#A14242
+    [restarting]=#E53935
+    [dead]=#E53935
+    [created]=#1A4F76
+    [paused]=#654321
+    [removing]=#8E6995
+)
+
+output=""
+containers=$(docker ps --all --format="{{.State}}")
+if [ "$(echo "$containers" | wc -l)" -gt 0 ]; then
+    for status in "${!STATUS[@]}"; do
+        count=$(echo "$containers" | grep -c "$status")
+        if [ "$count" -gt 0 ]; then
+            output="$output %{F${STATUS[$status]}}$count%{F-}"
+        fi
+    done
+fi
+
+echo "$output"