removed daemonize code that is not needed for services, cleaned up need for logrotate, removed some logging that was not useful
This commit is contained in:
Blake J. Harnden
parent
1ac862cc17
commit
44363b0500
7 changed files with 20 additions and 255 deletions
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@ -8,9 +8,7 @@ message handlers are defined and some support for sending messages.
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import ConfigParser
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import atexit
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import optparse
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import os
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import signal
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import socket
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import sys
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import time
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@ -20,16 +18,10 @@ from core import coreserver
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from core import enumerations
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from core import logger
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from core import services
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from core.api import coreapi
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from core.enumerations import MessageFlags
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from core.enumerations import RegisterTlvs
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from core.misc import nodeutils
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from core.misc.utils import close_onexec
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from core.misc.utils import daemonize
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from core.service import ServiceManager
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DEFAULT_MAXFD = 1024
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def banner():
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"""
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@ -51,6 +43,7 @@ def cored(cfg=None):
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port = int(cfg["port"])
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if host == "" or host is None:
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host = "localhost"
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try:
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server = coreserver.CoreServer((host, port), corehandlers.CoreRequestHandler, cfg)
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except:
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@ -62,7 +55,7 @@ def cored(cfg=None):
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server.serve_forever()
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# TODO: should sessions and the main core daemon both catch at exist to shutdown independently?
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# TODO: should sessions and the main core daemon both catch exit to shutdown independently?
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def cleanup():
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"""
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Runs server shutdown and cleanup when catching an exit signal.
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@ -74,9 +67,6 @@ def cleanup():
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server.shutdown()
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atexit.register(cleanup)
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def sighandler(signum, stackframe):
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"""
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Signal handler when different signals are sent.
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@ -94,43 +84,7 @@ signal.signal(signal.SIGINT, sighandler)
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signal.signal(signal.SIGTERM, sighandler)
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signal.signal(signal.SIGUSR1, sighandler)
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signal.signal(signal.SIGUSR2, sighandler)
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def logrotate(stdout, stderr, stdoutmode=0644, stderrmode=0644):
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"""
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Log rotation method.
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:param stdout: stdout
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:param stderr: stderr
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:param int stdoutmode: stdout mode
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:param int stderrmode: stderr mode
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:return:
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"""
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def reopen(fileno, filename, mode):
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err = 0
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fd = -1
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try:
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fd = os.open(filename,
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os.O_WRONLY | os.O_CREAT | os.O_APPEND, mode)
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os.dup2(fd, fileno)
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except OSError as e:
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err = e.errno
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finally:
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if fd >= 0:
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os.close(fd)
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return err
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if stdout:
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err = reopen(1, stdout, stdoutmode)
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if stderr:
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if stderr == stdout and not err:
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try:
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os.dup2(1, 2)
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except OSError as e:
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pass
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else:
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reopen(2, stderr, stderrmode)
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atexit.register(cleanup)
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def get_merged_config(filename):
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@ -142,50 +96,23 @@ def get_merged_config(filename):
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:rtype: dict
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"""
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# these are the defaults used in the config file
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defaults = {"port": "%d" % enumerations.CORE_API_PORT,
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"listenaddr": "localhost",
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"pidfile": "%s/run/core-daemon.pid" % constants.CORE_STATE_DIR,
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"logfile": "%s/log/core-daemon.log" % constants.CORE_STATE_DIR,
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"xmlfilever": "1.0",
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"numthreads": "1",
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"verbose": "False",
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"daemonize": "False",
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"debug": "False",
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"execfile": None,
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}
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defaults = {
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"port": "%d" % enumerations.CORE_API_PORT,
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"listenaddr": "localhost",
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"xmlfilever": "1.0",
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"numthreads": "1",
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}
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usagestr = "usage: %prog [-h] [options] [args]\n\n" + \
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"CORE daemon v.%s instantiates Linux network namespace " \
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"nodes." % constants.COREDPY_VERSION
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parser = optparse.OptionParser(usage=usagestr)
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parser.add_option("-f", "--configfile", dest="configfile",
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type="string",
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help="read config from specified file; default = %s" %
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filename)
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parser.add_option("-d", "--daemonize", dest="daemonize",
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action="store_true",
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help="run in background as daemon; default=%s" % \
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defaults["daemonize"])
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parser.add_option("-e", "--execute", dest="execfile", type="string",
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help="execute a Python/XML-based session")
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parser.add_option("-l", "--logfile", dest="logfile", type="string",
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help="log output to specified file; default = %s" %
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defaults["logfile"])
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parser.add_option("-f", "--configfile", dest="configfile", type="string",
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help="read config from specified file; default = %s" % filename)
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parser.add_option("-p", "--port", dest="port", type=int,
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help="port number to listen on; default = %s" % \
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defaults["port"])
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parser.add_option("-i", "--pidfile", dest="pidfile",
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help="filename to write pid to; default = %s" % \
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defaults["pidfile"])
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help="port number to listen on; default = %s" % defaults["port"])
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parser.add_option("-t", "--numthreads", dest="numthreads", type=int,
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help="number of server threads; default = %s" % \
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defaults["numthreads"])
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parser.add_option("-v", "--verbose", dest="verbose", action="store_true",
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help="enable verbose logging; default = %s" % \
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defaults["verbose"])
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parser.add_option("-g", "--debug", dest="debug", action="store_true",
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help="enable debug logging; default = %s" % \
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defaults["debug"])
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help="number of server threads; default = %s" % defaults["numthreads"])
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# parse command line options
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options, args = parser.parse_args()
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@ -200,19 +127,6 @@ def get_merged_config(filename):
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section = "core-daemon"
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if not cfg.has_section(section):
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cfg.add_section(section)
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# gracefully support legacy configs (cored.py/cored now core-daemon)
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if cfg.has_section("cored.py"):
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for name, val in cfg.items("cored.py"):
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if name == "pidfile" or name == "logfile":
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bn = os.path.basename(val).replace("coredpy", "core-daemon")
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val = os.path.join(os.path.dirname(val), bn)
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cfg.set(section, name, val)
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if cfg.has_section("cored"):
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for name, val in cfg.items("cored"):
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if name == "pidfile" or name == "logfile":
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bn = os.path.basename(val).replace("cored", "core-daemon")
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val = os.path.join(os.path.dirname(val), bn)
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cfg.set(section, name, val)
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# merge command line with config file
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for opt in options.__dict__:
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@ -223,24 +137,6 @@ def get_merged_config(filename):
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return dict(cfg.items(section)), args
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def exec_file(cfg):
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"""
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Send a Register Message to execute a new session based on XML or Python script file.
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:param dict cfg: configuration settings
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:return: 0
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"""
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filename = cfg["execfile"]
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logger.info("Telling daemon to execute file: %s...", filename)
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tlvdata = coreapi.CoreRegisterTlv.pack(RegisterTlvs.EXECUTE_SERVER.value, filename)
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msg = coreapi.CoreRegMessage.pack(MessageFlags.ADD.value, tlvdata)
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sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
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# TODO: connect address option
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sock.connect(("localhost", int(cfg["port"])))
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sock.sendall(msg)
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return 0
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def main():
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"""
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Main program startup.
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@ -260,19 +156,8 @@ def main():
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service_path = service_path.strip()
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ServiceManager.add_services(service_path)
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if cfg["daemonize"] == "True":
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daemonize(rootdir=None, umask=0, close_fds=False,
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stdin=os.devnull,
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stdout=cfg["logfile"], stderr=cfg["logfile"],
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pidfilename=cfg["pidfile"],
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defaultmaxfd=DEFAULT_MAXFD)
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signal.signal(signal.SIGUSR1, lambda signum, stackframe:
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logrotate(stdout=cfg["logfile"], stderr=cfg["logfile"]))
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banner()
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if cfg["execfile"]:
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cfg["execfile"] = os.path.abspath(cfg["execfile"])
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sys.exit(exec_file(cfg))
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try:
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cored(cfg)
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except KeyboardInterrupt:
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