[Newm] Add method for displaying active docker containers

.config/newm/config.py

@@ -6,6 +6,9 @@ import time
 import logging
 import psutil
 import subprocess
+import docker
+
+docker_client = docker.from_env()
 
 from newm.layout import Layout
 from newm.helper import BacklightManager, WobRunner, PaCtl
@@ -246,6 +249,11 @@ def right_text() -> str:
     return " | ".join([unread_emails(), cpu_usage(), mem_usage(), battery_status()])
 
 
+def display_docker() -> str:
+    containers = docker_client.containers.list(sparse=True)
+    return f"  {len(containers)}"
+
+
 def get_time() -> str:
     return time.strftime("%a %Y-%m-%d %X")