Systemd执行启动

Question

我有一个想要作为守护进程运行的Python脚本。我通过创建一个单元文件/etc/systemd/system/service来做到这一点

我想以systemctl start/stop/restart myservice的身份运行它

根据这个start stop参数，我可以处理像SIGUP、SIGINT这样的系统信号

问题是我可以像Python /stop/restart那样运行我的脚本，并且我的逻辑可以工作。

但是在转换成一个单元文件之后，这个python文件被ExecStart调用了，我不知道如何在那里传递参数？

    [Unit] 
    Description=This service monitors docker daemon for events
    After=multi-user.target

    [Service]
    Type=simple
    ExecStart=/home/PycharmProjects/python_tests/service-discovery/utils/auto_registeration_script/main.py
    User=root
    WorkingDirectory=/home/PycharmProjects/python_tests/service-discovery/utils/auto_registeration_script/
    Restart=on-failure

    [Install]
    WantedBy=multi-user.target

Answer 1

您实际上不是在运行"main.py start“和"main.py stop”吗？在这种情况下，您已经编写了一个"forking“服务。

[Unit] 
Description=This service monitors docker daemon for events
After=multi-user.target

[Service]
Type=forking
Environment=script=/home/PycharmProjects/python_tests/service-discovery/utils/auto_registeration_script/main.py
ExecStart=$script start
ExecStop=$script stop
User=root
WorkingDirectory=/home/PycharmProjects/python_tests/service-discovery/utils/auto_registeration_script/
Restart=on-failure

[Install]
WantedBy=multi-user.target