Selenium kill process to release mem, supervisor conf rotate log file

app_selenium/utils.py

@@ -1,6 +1,7 @@
 from selenium import webdriver
 from selenium.webdriver.firefox.options import Options 
 from selenium.webdriver.firefox.service import Service
+import psutil
 
 def get_webdriver():
     options = Options()
@@ -10,4 +11,13 @@ def get_webdriver():
     service = Service('/usr/local/bin/geckodriver')
 
     driver = webdriver.Firefox(options=options, service=service)
-    return driver
+    return driver, service
+
+def kill_process_tree(pid):
+    try:
+        parent = psutil.Process(pid)
+        for child in parent.children(recursive=True):
+            child.kill()
+        parent.kill()
+    except psutil.NoSuchProcess:
+        pass