[英]How to stop and start a systemd service via python script w/o requiring sudo password
以下腳本允許我檢查systemd service
是否處於活動狀態,以及停止或啟動該服務。 當執行.stop()
或.start()
如何繼續進行到停止和直接啟動服務的w / o具有供給須藤密碼? 這很有用的一個示例應用程序是停止和重新啟動NetworkManager
服務。
#!/bin/python3
import subprocess
import sys
class SystemdService(object):
'''A systemd service object with methods to check it's activity, and to stop() and start() it.'''
def __init__(self, service):
self.service = service
def is_active(self):
"""Return True if systemd service is running"""
try:
cmd = '/bin/systemctl status {}.service'.format(self.service)
completed = subprocess.run( cmd, shell=True, check=True, stdout=subprocess.PIPE )
except subprocess.CalledProcessError as err:
print( 'ERROR:', err )
else:
for line in completed.stdout.decode('utf-8').splitlines():
if 'Active:' in line:
if '(running)' in line:
print('True')
return True
return False
def stop(self):
''' Stop systemd service.'''
try:
cmd = '/bin/systemctl stop {}.service'.format(self.service)
completed = subprocess.run( cmd, shell=True, check=True, stdout=subprocess.PIPE )
except subprocess.CalledProcessError as err:
print( 'ERROR:', err )
def start(self):
''' Start systemd service.'''
try:
cmd = '/bin/systemctl start {}.service'.format(self.service)
completed = subprocess.run( cmd, shell=True, check=True, stdout=subprocess.PIPE )
except subprocess.CalledProcessError as err:
print( 'ERROR:', err )
if __name__ == '__main__':
monitor = SystemdService(sys.argv[1])
monitor.is_active()
就像你的腳本一樣對我有用。 就好像你的問題本身有一個解決方案。 在終端中,您可以使用以下命令示例啟動、停止、重新啟動服務:sudo systemctl restart "name of service".service。 為了通過 python 腳本實現相同的功能,上面的命令示例變為: /bin/systemctl restart "name of service".service
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