daemonizing

데몬으로 python script 를 실행할때 직접 daemonizing 코드를 구형하여 만들었는데

python-daemon 이라는 패키지를 사용해보니 cmdline 에서 start/stop/restart 도 지원하고 filelock 도 지원한다.

쓸만해보여서 정리해둠 

wget https://www.python.org/ftp/python/2.7.12/Python-2.7.12.tgz

tar zxf Python-2.7.12.tgz

cd Python-2.7.12

./configure --prefix=/home/apps/python2.7 --enable-unicode=ucs4 --enable-shared

make

make install

wget --no-check-certificate https://pypi.python.org/packages/25/4e/1b16cfe90856235a13872a6641278c862e4143887d11a12ac4905081197f/setuptools-28.8.0.tar.gz

tar zxf setuptools-28.8.0.tar.gz

cd setuptools-28.8.0

python2.7 setup.py build

python2.7 setup.py install

wget --no-check-certificate https://bootstrap.pypa.io/get-pip.py

python2.7 get-pip.py

pip install python-daemon

 

mkdir /daemon_sample

cd /daemon_sample

mkdir  bin lib log run

cd bin

vi daemon_sample.py

--------------------------------------------------------------------------------------------

#!/home/apps/python2.7/bin/python

# -*- coding: UTF-8 -*-

import time

from daemon.runner import DaemonRunner

class TestDaemon(object):

    def __init__(self):

        self.stdin_path = '/dev/null'

        self.stdout_path = '/dev/tty'

        self.stderr_path = '/dev/tty'

        self.pidfile_timeout = 0

        self.pidfile_path="/usr/mgmt/apm_package_manager/run/TestDaemon.pid"

    def run(self):

        while 1:

            time.sleep(3)

DaemonRunner(TestDaemon()).do_action()

--------------------------------------------------------------------------------------------

chmod 700 daemon_sample.py

./daemon_sample.py

usage: test.py start|stop|restart

 

 

./daemon_sample.py start

started with pid 24751

 

 

./daemon_sample.py start

  File "./test.py", line 19, in <module>

    DaemonRunner(TestDaemon()).do_action()

  File "/home/apps/python2.7/lib/python2.7/site-packages/daemon/runner.py", line 274, in do_action

    func(self)

  File "/home/apps/python2.7/lib/python2.7/site-packages/daemon/runner.py", line 187, in _start

    raise error

daemon.runner.DaemonRunnerStartFailureError: PID file '/usr/mgmt/apm_package_manager/run/TestDaemon.pid' already locked