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python_daemon_context_with_pidfile_and_signal_handling.py

python

A basic example of using the DaemonContext manager to run a program as a b

15d ago25 linespypi.org
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python_daemon_context_with_pidfile_and_signal_handling.py
1import daemon
2import lockfile
3
4from spam import do_main_program
5
6context = daemon.DaemonContext(
7    working_directory='/var/lib/spam',
8    umask=0o002,
9    pidfile=lockfile.FileLock('/var/run/spam.pid'),
10    )
11
12context.signal_map = {
13    signal.SIGTERM: program_cleanup,
14    signal.SIGHUP: 'terminate',
15    signal.SIGUSR1: reload_program_config,
16    }
17
18mail_gid = grp.getgrnam('mail').gr_gid
19context.gid = mail_gid
20
21important_file = open('test.log', 'w')
22context.files_preserve = [important_file]
23
24with context:
25    do_main_program()