deploy.py 2.09 KB
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import os
import subprocess
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import sys
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import time
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PROCESS_NAME = 'meteorologger'
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BASE_DIR = os.path.abspath(os.path.dirname(__file__))
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BASE_DIR = BASE_DIR[:BASE_DIR.rfind(os.path.sep)]
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SUPERVISOR_CONFIG_FILENAME = '/etc/supervisor/conf.d/{}.conf'\
                             .format(PROCESS_NAME)

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PID_FILENAME = 'logger/logs/pid_{}'.format(PROCESS_NAME)
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TEMPLATE_SUPERVISOR_CONF =\
"""\
[program:{PROCESS_NAME}]
command={BASE_DIR}/.venv/bin/python3 {BASE_DIR}/logger/run.py -s
directory={BASE_DIR}
user=root
autostart=true
autorestart=true
redirect_stderr=true
stdout_logfile={BASE_DIR}/logger/logs/stdout.log
logfile={BASE_DIR}/logger/logs/supervisor-{PROCESS_NAME}.log
""".format(**globals())
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def deploy_supervisor():
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    print('\nRegistering supervisor config at \n    {}\n'
          .format(SUPERVISOR_CONFIG_FILENAME) + '='*60 + '\n'
          + TEMPLATE_SUPERVISOR_CONF + '='*60)
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    with open(SUPERVISOR_CONFIG_FILENAME, 'w') as f:
        f.write(TEMPLATE_SUPERVISOR_CONF + '\n')
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    print('\nRestarting supervisor..')
    proc = subprocess.Popen('supervisorctl update', shell=True)
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    proc.wait()
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    print('')
    time.sleep(2)

    proc = subprocess.Popen('supervisorctl status meteorologger', shell=True)
    proc.wait()

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    proc = subprocess.Popen('supervisorctl pid {}'.format(PROCESS_NAME),
                            shell=True, stdout=subprocess.PIPE)
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    proc.wait()
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    pid = proc.stdout.read().decode('ascii').strip()
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    try:
        pid = int(pid)
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        with open(PID_FILENAME, 'w') as f:
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            f.write(str(pid) + '\n')	
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    except:
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        print("\nUnable to save PID={} at '{}'".format(pid, PID_FILENAME))

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def undeploy_supervisor():
    print('\nRemoving supervisor config file at\n   {}'
          .format(SUPERVISOR_CONFIG_FILENAME))
    os.system('rm -f {}'.format(SUPERVISOR_CONFIG_FILENAME))
    os.system('rm -f {}'.format(PID_FILENAME))

    print('\nRestarting supervisor..')
    proc = subprocess.Popen('supervisorctl update', shell=True)
    proc.wait()


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if __name__ == '__main__':
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    if '-u' in sys.argv:
        undeploy_supervisor()
    else:
        deploy_supervisor()