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#!/usr/bin/python |
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# |
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|
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# Copyright (C) 2006, 2007 Google Inc. |
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# |
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# This program is free software; you can redistribute it and/or modify |
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# it under the terms of the GNU General Public License as published by |
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# the Free Software Foundation; either version 2 of the License, or |
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# (at your option) any later version. |
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# |
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# This program is distributed in the hope that it will be useful, but |
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# WITHOUT ANY WARRANTY; without even the implied warranty of |
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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# General Public License for more details. |
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# |
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# You should have received a copy of the GNU General Public License |
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# along with this program; if not, write to the Free Software |
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
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# 02110-1301, USA. |
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|
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|
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"""Burnin program |
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|
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""" |
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|
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import os |
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import sys |
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import optparse |
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import time |
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import socket |
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import urllib |
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from itertools import izip, islice, cycle |
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from cStringIO import StringIO |
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|
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from ganeti import opcodes |
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from ganeti import constants |
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from ganeti import cli |
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from ganeti import errors |
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from ganeti import utils |
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|
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|
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USAGE = ("\tburnin -o OS_NAME [options...] instance_name ...") |
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|
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|
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class InstanceDown(Exception): |
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"""The checked instance was not up""" |
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|
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|
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def Usage(): |
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"""Shows program usage information and exits the program.""" |
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|
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print >> sys.stderr, "Usage:" |
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print >> sys.stderr, USAGE |
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sys.exit(2) |
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|
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|
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def Log(msg, indent=0): |
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"""Simple function that prints out its argument. |
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|
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""" |
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headers = { |
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0: "- ", |
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1: "* ", |
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2: "" |
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} |
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sys.stdout.write("%*s%s%s\n" % (2*indent, "", |
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headers.get(indent, " "), msg)) |
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sys.stdout.flush() |
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|
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def Err(msg, exit_code=1): |
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"""Simple error logging that prints to stderr. |
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|
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""" |
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sys.stderr.write(msg + "\n") |
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sys.stderr.flush() |
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sys.exit(exit_code) |
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|
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|
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class SimpleOpener(urllib.FancyURLopener): |
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"""A simple url opener""" |
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|
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def prompt_user_passwd(self, host, realm, clear_cache = 0): |
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"""No-interaction version of prompt_user_passwd.""" |
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return None, None |
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|
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def http_error_default(self, url, fp, errcode, errmsg, headers): |
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"""Custom error handling""" |
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# make sure sockets are not left in CLOSE_WAIT, this is similar |
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# but with a different exception to the BasicURLOpener class |
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_ = fp.read() # throw away data |
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fp.close() |
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raise InstanceDown("HTTP error returned: code %s, msg %s" % |
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(errcode, errmsg)) |
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|
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|
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class Burner(object): |
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"""Burner class.""" |
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|
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def __init__(self): |
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"""Constructor.""" |
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utils.SetupLogging(constants.LOG_BURNIN, debug=False, stderr_logging=True) |
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self.url_opener = SimpleOpener() |
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self._feed_buf = StringIO() |
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self.nodes = [] |
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self.instances = [] |
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self.to_rem = [] |
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self.queued_ops = [] |
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self.opts = None |
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self.ParseOptions() |
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self.cl = cli.GetClient() |
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self.GetState() |
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|
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def ClearFeedbackBuf(self): |
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"""Clear the feedback buffer.""" |
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self._feed_buf.truncate(0) |
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|
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def GetFeedbackBuf(self): |
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"""Return the contents of the buffer.""" |
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return self._feed_buf.getvalue() |
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|
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def Feedback(self, msg): |
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"""Acumulate feedback in our buffer.""" |
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self._feed_buf.write("%s %s\n" % (time.ctime(utils.MergeTime(msg[0])), |
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msg[2])) |
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if self.opts.verbose: |
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Log(msg, indent=3) |
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|
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def ExecOp(self, *ops): |
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"""Execute one or more opcodes and manage the exec buffer. |
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|
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@result: if only opcode has been passed, we return its result; |
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otherwise we return the list of results |
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|
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""" |
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job_id = cli.SendJob(ops, cl=self.cl) |
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results = cli.PollJob(job_id, cl=self.cl, feedback_fn=self.Feedback) |
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if len(ops) == 1: |
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return results[0] |
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else: |
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return results |
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|
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def ExecOrQueue(self, name, *ops): |
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"""Execute an opcode and manage the exec buffer.""" |
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if self.opts.parallel: |
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self.queued_ops.append((ops, name)) |
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else: |
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return self.ExecOp(*ops) |
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|
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def CommitQueue(self): |
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"""Execute all submitted opcodes in case of parallel burnin""" |
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if not self.opts.parallel: |
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return |
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|
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try: |
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results = self.ExecJobSet(self.queued_ops) |
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finally: |
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self.queued_ops = [] |
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return results |
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|
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def ExecJobSet(self, jobs): |
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"""Execute a set of jobs and return once all are done. |
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|
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The method will return the list of results, if all jobs are |
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successful. Otherwise, OpExecError will be raised from within |
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cli.py. |
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|
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""" |
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self.ClearFeedbackBuf() |
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job_ids = [cli.SendJob(row[0], cl=self.cl) for row in jobs] |
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Log("Submitted job ID(s) %s" % ", ".join(job_ids), indent=1) |
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results = [] |
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for jid, (_, iname) in zip(job_ids, jobs): |
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Log("waiting for job %s for %s" % (jid, iname), indent=2) |
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results.append(cli.PollJob(jid, cl=self.cl, feedback_fn=self.Feedback)) |
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|
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return results |
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|
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def ParseOptions(self): |
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"""Parses the command line options. |
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|
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In case of command line errors, it will show the usage and exit the |
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program. |
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|
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""" |
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|
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parser = optparse.OptionParser(usage="\n%s" % USAGE, |
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version="%%prog (ganeti) %s" % |
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constants.RELEASE_VERSION, |
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option_class=cli.CliOption) |
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|
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parser.add_option("-o", "--os", dest="os", default=None, |
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help="OS to use during burnin", |
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metavar="<OS>") |
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parser.add_option("--disk-size", dest="disk_size", |
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help="Disk size (determines disk count)", |
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default="128m", type="string", metavar="<size,size,...>") |
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parser.add_option("--disk-growth", dest="disk_growth", help="Disk growth", |
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default="128m", type="string", metavar="<size,size,...>") |
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parser.add_option("--mem-size", dest="mem_size", help="Memory size", |
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default=128, type="unit", metavar="<size>") |
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parser.add_option("-v", "--verbose", |
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action="store_true", dest="verbose", default=False, |
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help="print command execution messages to stdout") |
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parser.add_option("--no-replace1", dest="do_replace1", |
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help="Skip disk replacement with the same secondary", |
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action="store_false", default=True) |
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parser.add_option("--no-replace2", dest="do_replace2", |
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help="Skip disk replacement with a different secondary", |
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action="store_false", default=True) |
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parser.add_option("--no-failover", dest="do_failover", |
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help="Skip instance failovers", action="store_false", |
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default=True) |
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parser.add_option("--no-migrate", dest="do_migrate", |
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help="Skip instance live migration", |
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action="store_false", default=True) |
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parser.add_option("--no-importexport", dest="do_importexport", |
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help="Skip instance export/import", action="store_false", |
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default=True) |
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parser.add_option("--no-startstop", dest="do_startstop", |
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help="Skip instance stop/start", action="store_false", |
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default=True) |
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parser.add_option("--no-reinstall", dest="do_reinstall", |
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help="Skip instance reinstall", action="store_false", |
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default=True) |
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parser.add_option("--no-reboot", dest="do_reboot", |
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help="Skip instance reboot", action="store_false", |
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default=True) |
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parser.add_option("--no-activate-disks", dest="do_activate_disks", |
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help="Skip disk activation/deactivation", |
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action="store_false", default=True) |
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parser.add_option("--no-add-disks", dest="do_addremove_disks", |
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help="Skip disk addition/removal", |
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action="store_false", default=True) |
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parser.add_option("--no-add-nics", dest="do_addremove_nics", |
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help="Skip NIC addition/removal", |
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action="store_false", default=True) |
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parser.add_option("--no-nics", dest="nics", |
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help="No network interfaces", action="store_const", |
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const=[], default=[{}]) |
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parser.add_option("--rename", dest="rename", default=None, |
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help="Give one unused instance name which is taken" |
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" to start the renaming sequence", |
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metavar="<instance_name>") |
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parser.add_option("-t", "--disk-template", dest="disk_template", |
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choices=("diskless", "file", "plain", "drbd"), |
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default="drbd", |
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help="Disk template (diskless, file, plain or drbd)" |
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" [drbd]") |
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parser.add_option("-n", "--nodes", dest="nodes", default="", |
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help="Comma separated list of nodes to perform" |
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" the burnin on (defaults to all nodes)") |
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parser.add_option("-I", "--iallocator", dest="iallocator", |
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default=None, type="string", |
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help="Perform the allocation using an iallocator" |
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" instead of fixed node spread (node restrictions no" |
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" longer apply, therefore -n/--nodes must not be used") |
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parser.add_option("-p", "--parallel", default=False, action="store_true", |
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dest="parallel", |
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help="Enable parallelization of some operations in" |
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" order to speed burnin or to test granular locking") |
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parser.add_option("--net-timeout", default=15, type="int", |
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dest="net_timeout", |
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help="The instance check network timeout in seconds" |
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" (defaults to 15 seconds)") |
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parser.add_option("-C", "--http-check", default=False, action="store_true", |
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dest="http_check", |
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help="Enable checking of instance status via http," |
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" looking for /hostname.txt that should contain the" |
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" name of the instance") |
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parser.add_option("-K", "--keep-instances", default=False, |
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action="store_true", |
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dest="keep_instances", |
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help="Leave instances on the cluster after burnin," |
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" for investigation in case of errors or simply" |
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" to use them") |
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|
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|
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options, args = parser.parse_args() |
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if len(args) < 1 or options.os is None: |
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Usage() |
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|
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supported_disk_templates = (constants.DT_DISKLESS, |
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constants.DT_FILE, |
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constants.DT_PLAIN, |
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constants.DT_DRBD8) |
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if options.disk_template not in supported_disk_templates: |
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Err("Unknown disk template '%s'" % options.disk_template) |
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|
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if options.disk_template == constants.DT_DISKLESS: |
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disk_size = disk_growth = [] |
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options.do_addremove_disks = False |
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else: |
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disk_size = [utils.ParseUnit(v) for v in options.disk_size.split(",")] |
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disk_growth = [utils.ParseUnit(v) |
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for v in options.disk_growth.split(",")] |
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if len(disk_growth) != len(disk_size): |
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Err("Wrong disk sizes/growth combination") |
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if ((disk_size and options.disk_template == constants.DT_DISKLESS) or |
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(not disk_size and options.disk_template != constants.DT_DISKLESS)): |
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Err("Wrong disk count/disk template combination") |
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|
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self.disk_size = disk_size |
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self.disk_growth = disk_growth |
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self.disk_count = len(disk_size) |
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|
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if options.nodes and options.iallocator: |
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Err("Give either the nodes option or the iallocator option, not both") |
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|
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self.opts = options |
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self.instances = args |
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self.bep = { |
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constants.BE_MEMORY: options.mem_size, |
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constants.BE_VCPUS: 1, |
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} |
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self.hvp = {} |
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|
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socket.setdefaulttimeout(options.net_timeout) |
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|
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def GetState(self): |
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"""Read the cluster state from the config.""" |
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if self.opts.nodes: |
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names = self.opts.nodes.split(",") |
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else: |
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names = [] |
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try: |
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op = opcodes.OpQueryNodes(output_fields=["name", "offline", "drained"], |
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names=names, use_locking=True) |
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result = self.ExecOp(op) |
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except errors.GenericError, err: |
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err_code, msg = cli.FormatError(err) |
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Err(msg, exit_code=err_code) |
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self.nodes = [data[0] for data in result if not (data[1] or data[2])] |
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|
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result = self.ExecOp(opcodes.OpDiagnoseOS(output_fields=["name", "valid"], |
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names=[])) |
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|
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if not result: |
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Err("Can't get the OS list") |
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|
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# filter non-valid OS-es |
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os_set = [val[0] for val in result if val[1]] |
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|
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if self.opts.os not in os_set: |
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Err("OS '%s' not found" % self.opts.os) |
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|
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def BurnCreateInstances(self): |
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"""Create the given instances. |
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|
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""" |
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self.to_rem = [] |
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mytor = izip(cycle(self.nodes), |
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islice(cycle(self.nodes), 1, None), |
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self.instances) |
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|
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Log("Creating instances") |
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for pnode, snode, instance in mytor: |
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Log("instance %s" % instance, indent=1) |
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if self.opts.iallocator: |
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pnode = snode = None |
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msg = "with iallocator %s" % self.opts.iallocator |
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elif self.opts.disk_template not in constants.DTS_NET_MIRROR: |
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snode = None |
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msg = "on %s" % pnode |
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else: |
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msg = "on %s, %s" % (pnode, snode) |
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|
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Log(msg, indent=2) |
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|
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op = opcodes.OpCreateInstance(instance_name=instance, |
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disks = [ {"size": size} |
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for size in self.disk_size], |
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disk_template=self.opts.disk_template, |
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nics=self.opts.nics, |
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mode=constants.INSTANCE_CREATE, |
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os_type=self.opts.os, |
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pnode=pnode, |
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snode=snode, |
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start=True, |
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ip_check=True, |
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wait_for_sync=True, |
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file_driver="loop", |
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file_storage_dir=None, |
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iallocator=self.opts.iallocator, |
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beparams=self.bep, |
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hvparams=self.hvp, |
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) |
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|
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self.ExecOrQueue(instance, op) |
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self.to_rem.append(instance) |
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|
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self.CommitQueue() |
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|
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for instance in self.instances: |
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self._CheckInstanceAlive(instance) |
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|
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def BurnGrowDisks(self): |
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"""Grow both the os and the swap disks by the requested amount, if any.""" |
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Log("Growing disks") |
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for instance in self.instances: |
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Log("instance %s" % instance, indent=1) |
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for idx, growth in enumerate(self.disk_growth): |
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if growth > 0: |
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op = opcodes.OpGrowDisk(instance_name=instance, disk=idx, |
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amount=growth, wait_for_sync=True) |
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Log("increase disk/%s by %s MB" % (idx, growth), indent=2) |
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self.ExecOrQueue(instance, op) |
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self.CommitQueue() |
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|
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def BurnReplaceDisks1D8(self): |
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"""Replace disks on primary and secondary for drbd8.""" |
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Log("Replacing disks on the same nodes") |
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for instance in self.instances: |
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Log("instance %s" % instance, indent=1) |
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ops = [] |
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for mode in constants.REPLACE_DISK_SEC, constants.REPLACE_DISK_PRI: |
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op = opcodes.OpReplaceDisks(instance_name=instance, |
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mode=mode, |
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disks=[i for i in range(self.disk_count)]) |
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Log("run %s" % mode, indent=2) |
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ops.append(op) |
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self.ExecOrQueue(instance, *ops) |
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self.CommitQueue() |
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|
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def BurnReplaceDisks2(self): |
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"""Replace secondary node.""" |
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Log("Changing the secondary node") |
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mode = constants.REPLACE_DISK_CHG |
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|
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mytor = izip(islice(cycle(self.nodes), 2, None), |
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self.instances) |
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for tnode, instance in mytor: |
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Log("instance %s" % instance, indent=1) |
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if self.opts.iallocator: |
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tnode = None |
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msg = "with iallocator %s" % self.opts.iallocator |
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else: |
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msg = tnode |
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op = opcodes.OpReplaceDisks(instance_name=instance, |
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mode=mode, |
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remote_node=tnode, |
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iallocator=self.opts.iallocator, |
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disks=[i for i in range(self.disk_count)]) |
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Log("run %s %s" % (mode, msg), indent=2) |
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self.ExecOrQueue(instance, op) |
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self.CommitQueue() |
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|
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def BurnFailover(self): |
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"""Failover the instances.""" |
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Log("Failing over instances") |
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for instance in self.instances: |
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Log("instance %s" % instance, indent=1) |
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op = opcodes.OpFailoverInstance(instance_name=instance, |
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ignore_consistency=False) |
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|
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self.ExecOrQueue(instance, op) |
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self.CommitQueue() |
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for instance in self.instances: |
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self._CheckInstanceAlive(instance) |
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|
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def BurnMigrate(self): |
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"""Migrate the instances.""" |
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Log("Migrating instances") |
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for instance in self.instances: |
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Log("instance %s" % instance, indent=1) |
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op1 = opcodes.OpMigrateInstance(instance_name=instance, live=True, |
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cleanup=False) |
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|
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op2 = opcodes.OpMigrateInstance(instance_name=instance, live=True, |
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cleanup=True) |
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Log("migration and migration cleanup", indent=2) |
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self.ExecOrQueue(instance, op1, op2) |
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self.CommitQueue() |
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|
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def BurnImportExport(self): |
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"""Export the instance, delete it, and import it back. |
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|
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""" |
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Log("Exporting and re-importing instances") |
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mytor = izip(cycle(self.nodes), |
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islice(cycle(self.nodes), 1, None), |
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islice(cycle(self.nodes), 2, None), |
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self.instances) |
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|
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for pnode, snode, enode, instance in mytor: |
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Log("instance %s" % instance, indent=1) |
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# read the full name of the instance |
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nam_op = opcodes.OpQueryInstances(output_fields=["name"], |
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names=[instance], use_locking=True) |
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full_name = self.ExecOp(nam_op)[0][0] |
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|
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if self.opts.iallocator: |
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pnode = snode = None |
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import_log_msg = ("import from %s" |
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" with iallocator %s" % |
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(enode, self.opts.iallocator)) |
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elif self.opts.disk_template not in constants.DTS_NET_MIRROR: |
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snode = None |
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import_log_msg = ("import from %s to %s" % |
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(enode, pnode)) |
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else: |
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import_log_msg = ("import from %s to %s, %s" % |
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(enode, pnode, snode)) |
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|
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exp_op = opcodes.OpExportInstance(instance_name=instance, |
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target_node=enode, |
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shutdown=True) |
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rem_op = opcodes.OpRemoveInstance(instance_name=instance, |
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ignore_failures=True) |
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imp_dir = os.path.join(constants.EXPORT_DIR, full_name) |
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imp_op = opcodes.OpCreateInstance(instance_name=instance, |
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disks = [ {"size": size} |
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for size in self.disk_size], |
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disk_template=self.opts.disk_template, |
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nics=self.opts.nics, |
515 |
mode=constants.INSTANCE_IMPORT, |
516 |
src_node=enode, |
517 |
src_path=imp_dir, |
518 |
pnode=pnode, |
519 |
snode=snode, |
520 |
start=True, |
521 |
ip_check=True, |
522 |
wait_for_sync=True, |
523 |
file_storage_dir=None, |
524 |
file_driver="loop", |
525 |
iallocator=self.opts.iallocator, |
526 |
beparams=self.bep, |
527 |
hvparams=self.hvp, |
528 |
) |
529 |
|
530 |
erem_op = opcodes.OpRemoveExport(instance_name=instance) |
531 |
|
532 |
Log("export to node %s" % enode, indent=2) |
533 |
Log("remove instance", indent=2) |
534 |
Log(import_log_msg, indent=2) |
535 |
Log("remove export", indent=2) |
536 |
self.ExecOrQueue(instance, exp_op, rem_op, imp_op, erem_op) |
537 |
|
538 |
self.CommitQueue() |
539 |
for instance in self.instances: |
540 |
self._CheckInstanceAlive(instance) |
541 |
|
542 |
def StopInstanceOp(self, instance): |
543 |
"""Stop given instance.""" |
544 |
return opcodes.OpShutdownInstance(instance_name=instance) |
545 |
|
546 |
def StartInstanceOp(self, instance): |
547 |
"""Start given instance.""" |
548 |
return opcodes.OpStartupInstance(instance_name=instance, force=False) |
549 |
|
550 |
def RenameInstanceOp(self, instance, instance_new): |
551 |
"""Rename instance.""" |
552 |
return opcodes.OpRenameInstance(instance_name=instance, |
553 |
new_name=instance_new) |
554 |
|
555 |
def BurnStopStart(self): |
556 |
"""Stop/start the instances.""" |
557 |
Log("Stopping and starting instances") |
558 |
for instance in self.instances: |
559 |
Log("instance %s" % instance, indent=1) |
560 |
op1 = self.StopInstanceOp(instance) |
561 |
op2 = self.StartInstanceOp(instance) |
562 |
self.ExecOrQueue(instance, op1, op2) |
563 |
|
564 |
self.CommitQueue() |
565 |
|
566 |
for instance in self.instances: |
567 |
self._CheckInstanceAlive(instance) |
568 |
|
569 |
def BurnRemove(self): |
570 |
"""Remove the instances.""" |
571 |
Log("Removing instances") |
572 |
for instance in self.to_rem: |
573 |
Log("instance %s" % instance, indent=1) |
574 |
op = opcodes.OpRemoveInstance(instance_name=instance, |
575 |
ignore_failures=True) |
576 |
self.ExecOrQueue(instance, op) |
577 |
|
578 |
self.CommitQueue() |
579 |
|
580 |
def BurnRename(self): |
581 |
"""Rename the instances. |
582 |
|
583 |
Note that this function will not execute in parallel, since we |
584 |
only have one target for rename. |
585 |
|
586 |
""" |
587 |
Log("Renaming instances") |
588 |
rename = self.opts.rename |
589 |
for instance in self.instances: |
590 |
Log("instance %s" % instance, indent=1) |
591 |
op_stop1 = self.StopInstanceOp(instance) |
592 |
op_stop2 = self.StopInstanceOp(rename) |
593 |
op_rename1 = self.RenameInstanceOp(instance, rename) |
594 |
op_rename2 = self.RenameInstanceOp(rename, instance) |
595 |
op_start1 = self.StartInstanceOp(rename) |
596 |
op_start2 = self.StartInstanceOp(instance) |
597 |
self.ExecOp(op_stop1, op_rename1, op_start1) |
598 |
self._CheckInstanceAlive(rename) |
599 |
self.ExecOp(op_stop2, op_rename2, op_start2) |
600 |
self._CheckInstanceAlive(instance) |
601 |
|
602 |
def BurnReinstall(self): |
603 |
"""Reinstall the instances.""" |
604 |
Log("Reinstalling instances") |
605 |
for instance in self.instances: |
606 |
Log("instance %s" % instance, indent=1) |
607 |
op1 = self.StopInstanceOp(instance) |
608 |
op2 = opcodes.OpReinstallInstance(instance_name=instance) |
609 |
Log("reinstall without passing the OS", indent=2) |
610 |
op3 = opcodes.OpReinstallInstance(instance_name=instance, |
611 |
os_type=self.opts.os) |
612 |
Log("reinstall specifying the OS", indent=2) |
613 |
op4 = self.StartInstanceOp(instance) |
614 |
self.ExecOrQueue(instance, op1, op2, op3, op4) |
615 |
|
616 |
self.CommitQueue() |
617 |
|
618 |
for instance in self.instances: |
619 |
self._CheckInstanceAlive(instance) |
620 |
|
621 |
def BurnReboot(self): |
622 |
"""Reboot the instances.""" |
623 |
Log("Rebooting instances") |
624 |
for instance in self.instances: |
625 |
Log("instance %s" % instance, indent=1) |
626 |
ops = [] |
627 |
for reboot_type in constants.REBOOT_TYPES: |
628 |
op = opcodes.OpRebootInstance(instance_name=instance, |
629 |
reboot_type=reboot_type, |
630 |
ignore_secondaries=False) |
631 |
Log("reboot with type '%s'" % reboot_type, indent=2) |
632 |
ops.append(op) |
633 |
self.ExecOrQueue(instance, *ops) |
634 |
|
635 |
self.CommitQueue() |
636 |
|
637 |
for instance in self.instances: |
638 |
self._CheckInstanceAlive(instance) |
639 |
|
640 |
def BurnActivateDisks(self): |
641 |
"""Activate and deactivate disks of the instances.""" |
642 |
Log("Activating/deactivating disks") |
643 |
for instance in self.instances: |
644 |
Log("instance %s" % instance, indent=1) |
645 |
op_start = self.StartInstanceOp(instance) |
646 |
op_act = opcodes.OpActivateInstanceDisks(instance_name=instance) |
647 |
op_deact = opcodes.OpDeactivateInstanceDisks(instance_name=instance) |
648 |
op_stop = self.StopInstanceOp(instance) |
649 |
Log("activate disks when online", indent=2) |
650 |
Log("activate disks when offline", indent=2) |
651 |
Log("deactivate disks (when offline)", indent=2) |
652 |
self.ExecOrQueue(instance, op_act, op_stop, op_act, op_deact, op_start) |
653 |
self.CommitQueue() |
654 |
for instance in self.instances: |
655 |
self._CheckInstanceAlive(instance) |
656 |
|
657 |
def BurnAddRemoveDisks(self): |
658 |
"""Add and remove an extra disk for the instances.""" |
659 |
Log("Adding and removing disks") |
660 |
for instance in self.instances: |
661 |
Log("instance %s" % instance, indent=1) |
662 |
op_add = opcodes.OpSetInstanceParams(\ |
663 |
instance_name=instance, |
664 |
disks=[(constants.DDM_ADD, {"size": self.disk_size[0]})]) |
665 |
op_rem = opcodes.OpSetInstanceParams(\ |
666 |
instance_name=instance, disks=[(constants.DDM_REMOVE, {})]) |
667 |
op_stop = self.StopInstanceOp(instance) |
668 |
op_start = self.StartInstanceOp(instance) |
669 |
Log("adding a disk", indent=2) |
670 |
Log("removing last disk", indent=2) |
671 |
self.ExecOrQueue(instance, op_add, op_stop, op_rem, op_start) |
672 |
self.CommitQueue() |
673 |
for instance in self.instances: |
674 |
self._CheckInstanceAlive(instance) |
675 |
|
676 |
def BurnAddRemoveNICs(self): |
677 |
"""Add and remove an extra NIC for the instances.""" |
678 |
Log("Adding and removing NICs") |
679 |
for instance in self.instances: |
680 |
Log("instance %s" % instance, indent=1) |
681 |
op_add = opcodes.OpSetInstanceParams(\ |
682 |
instance_name=instance, nics=[(constants.DDM_ADD, {})]) |
683 |
op_rem = opcodes.OpSetInstanceParams(\ |
684 |
instance_name=instance, nics=[(constants.DDM_REMOVE, {})]) |
685 |
Log("adding a NIC", indent=2) |
686 |
Log("removing last NIC", indent=2) |
687 |
self.ExecOrQueue(instance, op_add, op_rem) |
688 |
self.CommitQueue() |
689 |
|
690 |
def _CheckInstanceAlive(self, instance): |
691 |
"""Check if an instance is alive by doing http checks. |
692 |
|
693 |
This will try to retrieve the url on the instance /hostname.txt |
694 |
and check that it contains the hostname of the instance. In case |
695 |
we get ECONNREFUSED, we retry up to the net timeout seconds, for |
696 |
any other error we abort. |
697 |
|
698 |
""" |
699 |
if not self.opts.http_check: |
700 |
return |
701 |
end_time = time.time() + self.opts.net_timeout |
702 |
url = None |
703 |
while time.time() < end_time and url is None: |
704 |
try: |
705 |
url = self.url_opener.open("http://%s/hostname.txt" % instance) |
706 |
except IOError: |
707 |
# here we can have connection refused, no route to host, etc. |
708 |
time.sleep(1) |
709 |
if url is None: |
710 |
raise InstanceDown(instance, "Cannot contact instance") |
711 |
hostname = url.read().strip() |
712 |
url.close() |
713 |
if hostname != instance: |
714 |
raise InstanceDown(instance, ("Hostname mismatch, expected %s, got %s" % |
715 |
(instance, hostname))) |
716 |
|
717 |
def BurninCluster(self): |
718 |
"""Test a cluster intensively. |
719 |
|
720 |
This will create instances and then start/stop/failover them. |
721 |
It is safe for existing instances but could impact performance. |
722 |
|
723 |
""" |
724 |
|
725 |
opts = self.opts |
726 |
|
727 |
Log("Testing global parameters") |
728 |
|
729 |
if (len(self.nodes) == 1 and |
730 |
opts.disk_template not in (constants.DT_DISKLESS, constants.DT_PLAIN, |
731 |
constants.DT_FILE)): |
732 |
Err("When one node is available/selected the disk template must" |
733 |
" be 'diskless', 'file' or 'plain'") |
734 |
|
735 |
has_err = True |
736 |
try: |
737 |
self.BurnCreateInstances() |
738 |
if opts.do_replace1 and opts.disk_template in constants.DTS_NET_MIRROR: |
739 |
self.BurnReplaceDisks1D8() |
740 |
if (opts.do_replace2 and len(self.nodes) > 2 and |
741 |
opts.disk_template in constants.DTS_NET_MIRROR) : |
742 |
self.BurnReplaceDisks2() |
743 |
|
744 |
if (opts.disk_template != constants.DT_DISKLESS and |
745 |
utils.any(self.disk_growth, lambda n: n > 0)): |
746 |
self.BurnGrowDisks() |
747 |
|
748 |
if opts.do_failover and opts.disk_template in constants.DTS_NET_MIRROR: |
749 |
self.BurnFailover() |
750 |
|
751 |
if opts.do_migrate and opts.disk_template == constants.DT_DRBD8: |
752 |
self.BurnMigrate() |
753 |
|
754 |
if (opts.do_importexport and |
755 |
opts.disk_template not in (constants.DT_DISKLESS, |
756 |
constants.DT_FILE)): |
757 |
self.BurnImportExport() |
758 |
|
759 |
if opts.do_reinstall: |
760 |
self.BurnReinstall() |
761 |
|
762 |
if opts.do_reboot: |
763 |
self.BurnReboot() |
764 |
|
765 |
if opts.do_addremove_disks: |
766 |
self.BurnAddRemoveDisks() |
767 |
|
768 |
if opts.do_addremove_nics: |
769 |
self.BurnAddRemoveNICs() |
770 |
|
771 |
if opts.do_activate_disks: |
772 |
self.BurnActivateDisks() |
773 |
|
774 |
if opts.rename: |
775 |
self.BurnRename() |
776 |
|
777 |
if opts.do_startstop: |
778 |
self.BurnStopStart() |
779 |
|
780 |
has_err = False |
781 |
finally: |
782 |
if has_err: |
783 |
Log("Error detected: opcode buffer follows:\n\n") |
784 |
Log(self.GetFeedbackBuf()) |
785 |
Log("\n\n") |
786 |
if not self.opts.keep_instances: |
787 |
self.BurnRemove() |
788 |
|
789 |
return 0 |
790 |
|
791 |
|
792 |
def main(): |
793 |
"""Main function""" |
794 |
|
795 |
burner = Burner() |
796 |
return burner.BurninCluster() |
797 |
|
798 |
|
799 |
if __name__ == "__main__": |
800 |
main() |