baseimage-tutorial-framework/lib/tfw/mixins/supervisor_mixin.py

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# Copyright (C) 2018 Avatao.com Innovative Learning Kft.
# All Rights Reserved. See LICENSE file for details.
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import xmlrpc.client
from xmlrpc.client import Fault as SupervisorFault
from contextlib import suppress
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from os import remove
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from tfw.config import TFWENV
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class SupervisorMixin:
supervisor = xmlrpc.client.ServerProxy(TFWENV.SUPERVISOR_HTTP_URI).supervisor
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def stop_process(self, process_name):
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with suppress(SupervisorFault):
self.supervisor.stopProcess(process_name)
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def start_process(self, process_name):
self.supervisor.startProcess(process_name)
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def read_log_stdout(self, process_name):
return self._read_log_internal(self.supervisor.readProcessStdoutLog, process_name)
def read_log_stderr(self, process_name):
return self._read_log_internal(self.supervisor.readProcessStderrLog, process_name)
def _read_log_internal(self, read_method, process_name):
log = read_method(process_name, 0, 0)
self.clear_logs(process_name)
return log
def clear_logs(self, process_name):
for logfile in ('stdout_logfile', 'stderr_logfile'):
remove(self.supervisor.getProcessInfo(process_name)[logfile])
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self.supervisor.clearProcessLogs(process_name)
def restart_process(self, process_name):
self.stop_process(process_name)
self.start_process(process_name)