133 lines
4.7 KiB
Python
Executable File
133 lines
4.7 KiB
Python
Executable File
#!/usr/bin/env python
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# Copyright 2012 Hewlett-Packard Development Company, L.P.
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# Copyright 2013 OpenStack Foundation
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import configparser
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import extras
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import io
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import logging
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import logging.config
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import os
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import signal
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import sys
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import traceback
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import threading
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yappi = extras.try_import('yappi')
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objgraph = extras.try_import('objgraph')
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from zuul.ansible import logconfig
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import zuul.lib.connections
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# Do not import modules that will pull in paramiko which must not be
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# imported until after the daemonization.
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# https://github.com/paramiko/paramiko/issues/59
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# Similar situation with gear and statsd.
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def stack_dump_handler(signum, frame):
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signal.signal(signal.SIGUSR2, signal.SIG_IGN)
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log = logging.getLogger("zuul.stack_dump")
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log.debug("Beginning debug handler")
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try:
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threads = {}
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for t in threading.enumerate():
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threads[t.ident] = t
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log_str = ""
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for thread_id, stack_frame in sys._current_frames().items():
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thread = threads.get(thread_id)
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if thread:
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thread_name = thread.name
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else:
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thread_name = thread.ident
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log_str += "Thread: %s %s\n" % (thread_id, thread_name)
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log_str += "".join(traceback.format_stack(stack_frame))
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log.debug(log_str)
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except Exception:
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log.exception("Thread dump error:")
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try:
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if yappi:
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if not yappi.is_running():
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log.debug("Starting Yappi")
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yappi.start()
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else:
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log.debug("Stopping Yappi")
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yappi.stop()
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yappi_out = io.StringIO()
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yappi.get_func_stats().print_all(out=yappi_out)
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yappi.get_thread_stats().print_all(out=yappi_out)
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log.debug(yappi_out.getvalue())
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yappi_out.close()
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yappi.clear_stats()
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except Exception:
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log.exception("Yappi error:")
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try:
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if objgraph:
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log.debug("Most common types:")
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objgraph_out = io.StringIO()
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objgraph.show_growth(limit=100, file=objgraph_out)
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log.debug(objgraph_out.getvalue())
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objgraph_out.close()
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except Exception:
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log.exception("Objgraph error:")
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log.debug("End debug handler")
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signal.signal(signal.SIGUSR2, stack_dump_handler)
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class ZuulApp(object):
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def __init__(self):
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self.args = None
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self.config = None
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self.connections = {}
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def _get_version(self):
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from zuul.version import version_info as zuul_version_info
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return "Zuul version: %s" % zuul_version_info.release_string()
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def read_config(self):
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self.config = configparser.ConfigParser()
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if self.args.config:
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locations = [self.args.config]
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else:
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locations = ['/etc/zuul/zuul.conf',
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'~/zuul.conf']
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for fp in locations:
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if os.path.exists(os.path.expanduser(fp)):
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self.config.read(os.path.expanduser(fp))
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return
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raise Exception("Unable to locate config file in %s" % locations)
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def setup_logging(self, section, parameter):
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if self.config.has_option(section, parameter):
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fp = os.path.expanduser(self.config.get(section, parameter))
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logging_config = logconfig.load_config(fp)
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else:
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# If someone runs in the foreground and doesn't give a logging
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# config, leave the config set to emit to stdout.
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if hasattr(self.args, 'nodaemon') and self.args.nodaemon:
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logging_config = logconfig.ServerLoggingConfig()
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logging_config.setDebug()
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else:
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# Setting a server value updates the defaults to use
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# WatchedFileHandler on /var/log/zuul/{server}-debug.log
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# and /var/log/zuul/{server}.log
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logging_config = logconfig.ServerLoggingConfig(server=section)
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logging_config.apply()
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def configure_connections(self, source_only=False):
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self.connections = zuul.lib.connections.ConnectionRegistry()
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self.connections.configure(self.config, source_only)
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