autoserv revision f5427bb08d4f783874e9de7fd31e259cb5207d36 
1#!/usr/bin/python -u
2#
3# Copyright 2007 Google Inc. Released under the GPL v2
4
5"""
6Run an control file through the server side engine
7"""
8
9__author__ = """\
10mbligh@google.com (Martin J. Bligh)
11"""
12
13import sys, os, re, traceback, signal
14
15import common
16from autotest_lib.server import server_job, utils
17
18
19# send stdin to /dev/null
20dev_null = os.open(os.devnull, os.O_RDONLY)
21os.dup2(dev_null, sys.stdin.fileno())
22os.close(dev_null)
23
24
25class PidFileManager(object):
26	pid_file = None
27
28	def open_pid_file(self, results_dir):
29		pid_file_path = os.path.join(results_dir, '.autoserv_execute')
30		assert not os.path.exists(pid_file_path)
31		self.pid_file = open(pid_file_path, 'w')
32		self.pid_file.write(str(os.getpid()) + '\n')
33		self.pid_file.flush()
34
35
36	def close_pid_file(self, exit_code, signal_code=0):
37		if not self.pid_file:
38			return
39		real_exit_code = (exit_code << 8) | (signal_code & 0xFF)
40		self.pid_file.write(str(real_exit_code) + '\n')
41		self.pid_file.close()
42
43
44pid_file_manager = PidFileManager()
45
46
47# Create separate process group
48os.setpgrp()
49
50# Implement SIGTERM handler
51def handle_sigint(signum, frame):
52	pid_file_manager.close_pid_file(1, signal.SIGTERM)
53	os.killpg(os.getpgrp(), signal.SIGKILL)
54
55# Set signal handler
56signal.signal(signal.SIGTERM, handle_sigint)
57
58
59usage = """\
60usage: autoserv
61	[-h, --help]               # This help message
62	[-m machine,[machine,...]] # list of machines to pass to control file
63	[-M machines_file]         # list of machines (from a file)
64	[-c]                       # control file is a client side control
65	[-r resultsdir]            # specify results directory (default '.')
66	[-i]                       # reinstall machines before running the job
67	[-I]                       # reinstall machines after running the job
68	[-b]                       # reboot all specified machines after the job
69	[-l label]                 # label for the job (arbitrary string)
70	[-u user]                  # username for the job (email address)
71	[-v]                       # verify the machines only
72	[-R]                       # repair the machines
73	[-n]                       # no teeing the status to stdout/stderr
74	[-p]                       # write pidfile (.autoserv_execute)
75	<control file>             # name of the control file to run
76	[args ...]                 # args to pass through to the control file
77"""
78
79args = sys.argv[1:]
80parser = utils.AutoservOptionParser(args)
81
82# Get a useful value for running 'USER'
83realuser = os.environ.get('USER')
84if not realuser:
85	realuser = 'anonymous'
86
87machines = parser.parse_opts_param('-m', None, split = ',')
88machines_file = parser.parse_opts_param('-M', None)
89results  = parser.parse_opts_param('-r', os.path.abspath('.'))
90results  = os.path.abspath(results)
91label    = parser.parse_opts_param('-l', '')
92user     = parser.parse_opts_param('-u', realuser)
93client   = parser.parse_opts('-c')
94reboot   = parser.parse_opts('-b')
95install_before = parser.parse_opts('-i')
96install_after  = parser.parse_opts('-I')
97verify   = parser.parse_opts('-v')
98repair   = parser.parse_opts('-R')
99no_tee   = parser.parse_opts('-n')
100help     = parser.parse_opts('-h') or parser.parse_opts('--help')
101write_pidfile = parser.parse_opts('-p')
102
103if help is True:
104  print usage
105  sys.exit(0)
106
107if len(parser.args) < 1 and not verify and not repair:
108	print usage
109	sys.exit(-1)
110
111if machines_file:
112	machines = []
113	for m in open(machines_file, 'r').readlines():
114		m = re.sub('#.*', '', m).strip()   # remove comments, spaces
115		if m:
116			machines.append(m)
117	print "Read list of machines from file: %s" % machines_file
118	print ','.join(machines)
119
120if machines:
121	for machine in machines:
122		if not machine or re.search('\s', machine):
123			print "Invalid machine %s" % str(machine)
124			sys.exit(1)
125	machines = list(set(machines))
126	machines.sort()
127
128# We have a control file unless it's just a verify/repair job
129if len(parser.args) > 0:
130	control = parser.args[0]
131else:
132	control = None
133
134job = server_job.server_job(control, parser.args[1:], results, label,
135							user, machines, client)
136debug_dir = os.path.join(results, 'debug')
137if no_tee:
138	job.stdout.redirect(os.path.join(debug_dir, 'autoserv.stdout'))
139	job.stderr.redirect(os.path.join(debug_dir, 'autoserv.stderr'))
140else:
141	job.stdout.tee_redirect(os.path.join(debug_dir, 'autoserv.stdout'))
142	job.stderr.tee_redirect(os.path.join(debug_dir, 'autoserv.stderr'))
143
144if write_pidfile:
145	pid_file_manager.open_pid_file(results)
146
147# run the job
148exit_code = 0
149try:
150	if repair:
151		job.repair()
152	elif verify:
153		job.verify()
154	else:
155		job.run(reboot, install_before, install_after)
156except:
157	job.aborted = True
158	traceback.print_exc()
159
160if getattr(job, 'aborted', False):
161	exit_code = 1
162pid_file_manager.close_pid_file(exit_code)
163
164sys.exit(exit_code)
165