#!/usr/bin/python
#
+# Copyright (C) 2006, 2007 Google Inc.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+# 02110-1301, USA.
+
+
+"""Burnin program
+
+"""
+
+import os
import sys
import optparse
+import time
+from itertools import izip, islice, cycle
+from cStringIO import StringIO
from ganeti import opcodes
from ganeti import mcpu
-from ganeti import objects
from ganeti import constants
from ganeti import cli
from ganeti import logger
from ganeti import errors
from ganeti import utils
+
USAGE = ("\tburnin -o OS_NAME [options...] instance_name ...")
+
def Usage():
"""Shows program usage information and exits the program."""
sys.exit(2)
-def Feedback(msg):
+def Log(msg):
"""Simple function that prints out its argument.
"""
print msg
-
-
-def ParseOptions():
- """Parses the command line options.
-
- In case of command line errors, it will show the usage and exit the
- program.
-
- Returns:
- (options, args), as returned by OptionParser.parse_args
- """
-
- parser = optparse.OptionParser(usage="\n%s" % USAGE,
- version="%%prog (ganeti) %s" %
- constants.RELEASE_VERSION,
- option_class=cli.CliOption)
-
- parser.add_option("-o", "--os", dest="os", default=None,
- help="OS to use during burnin",
- metavar="<OS>")
- parser.add_option("--os-size", dest="os_size", help="Disk size",
- default=4 * 1024, type="unit", metavar="<size>")
- parser.add_option("--swap-size", dest="swap_size", help="Swap size",
- default=4 * 1024, type="unit", metavar="<size>")
- parser.add_option("-v", "--verbose",
- action="store_true", dest="verbose", default=False,
- help="print command execution messages to stdout")
- parser.add_option("--do-replace1", dest="do_replace1",
- help="Do disk replacement with the same secondary",
- action="store_false", default=True)
- parser.add_option("--do-replace2", dest="do_replace2",
- help="Do disk replacement with a different secondary",
- action="store_false", default=True)
- parser.add_option("--do-failover", dest="do_failover",
- help="Do instance failovers", action="store_false",
- default=True)
-
- options, args = parser.parse_args()
- if len(args) < 1 or options.os is None:
- Usage()
-
- return options, args
-
-
-def BurninCluster(opts, args):
- """Test a cluster intensively.
-
- This will create instances and then start/stop/failover them.
- It is safe for existing instances but could impact performance.
-
- """
-
- logger.SetupLogging(debug=True, program="ganeti/burnin")
- proc = mcpu.Processor()
- result = proc.ExecOpCode(opcodes.OpQueryNodes(output_fields=["name"],
- names=[]), Feedback)
- nodelist = [data[0] for data in result]
-
- Feedback("- Testing global parameters")
-
- result = proc.ExecOpCode(opcodes.OpDiagnoseOS(), Feedback)
-
- if not result:
- Feedback("Can't get the OS list")
- return 1
-
- # filter non-valid OS-es
- oses = {}
- for node_name in result:
- oses[node_name] = [obj for obj in result[node_name]
- if isinstance(obj, objects.OS)]
-
- fnode = oses.keys()[0]
- os_set = set([os_inst.name for os_inst in oses[fnode]])
- del oses[fnode]
- for node in oses:
- os_set &= set([os_inst.name for os_inst in oses[node]])
-
- if opts.os not in os_set:
- Feedback("OS '%s' not found" % opts.os)
- return 1
-
- to_remove = []
- try:
- idx = 0
- for instance_name in args:
- next_idx = idx + 1
- if next_idx >= len(nodelist):
- next_idx = 0
- pnode = nodelist[idx]
- snode = nodelist[next_idx]
- if len(nodelist) > 1:
- tplate = constants.DT_REMOTE_RAID1
+ sys.stdout.flush()
+
+
+class Burner(object):
+ """Burner class."""
+
+ def __init__(self):
+ """Constructor."""
+ logger.SetupLogging(program="ganeti/burnin", debug=False)
+ self._feed_buf = StringIO()
+ self.nodes = []
+ self.instances = []
+ self.to_rem = []
+ self.opts = None
+ self.ParseOptions()
+ self.GetState()
+
+ def ClearFeedbackBuf(self):
+ """Clear the feedback buffer."""
+ self._feed_buf.truncate(0)
+
+ def GetFeedbackBuf(self):
+ """Return the contents of the buffer."""
+ return self._feed_buf.getvalue()
+
+ def Feedback(self, msg):
+ """Acumulate feedback in our buffer."""
+ self._feed_buf.write("%s %s\n" % (time.ctime(msg[0]), msg[2]))
+ if self.opts.verbose:
+ Log(msg)
+
+ def ExecOp(self, op):
+ """Execute an opcode and manage the exec buffer."""
+ self.ClearFeedbackBuf()
+ return cli.SubmitOpCode(op, feedback_fn=self.Feedback)
+
+ def ParseOptions(self):
+ """Parses the command line options.
+
+ In case of command line errors, it will show the usage and exit the
+ program.
+
+ """
+
+ parser = optparse.OptionParser(usage="\n%s" % USAGE,
+ version="%%prog (ganeti) %s" %
+ constants.RELEASE_VERSION,
+ option_class=cli.CliOption)
+
+ parser.add_option("-o", "--os", dest="os", default=None,
+ help="OS to use during burnin",
+ metavar="<OS>")
+ parser.add_option("--os-size", dest="os_size", help="Disk size",
+ default=4 * 1024, type="unit", metavar="<size>")
+ parser.add_option("--swap-size", dest="swap_size", help="Swap size",
+ default=4 * 1024, type="unit", metavar="<size>")
+ parser.add_option("--mem-size", dest="mem_size", help="Memory size",
+ default=128, type="unit", metavar="<size>")
+ parser.add_option("-v", "--verbose",
+ action="store_true", dest="verbose", default=False,
+ help="print command execution messages to stdout")
+ parser.add_option("--no-replace1", dest="do_replace1",
+ help="Skip disk replacement with the same secondary",
+ action="store_false", default=True)
+ parser.add_option("--no-replace2", dest="do_replace2",
+ help="Skip disk replacement with a different secondary",
+ action="store_false", default=True)
+ parser.add_option("--no-failover", dest="do_failover",
+ help="Skip instance failovers", action="store_false",
+ default=True)
+ parser.add_option("--no-importexport", dest="do_importexport",
+ help="Skip instance export/import", action="store_false",
+ default=True)
+ parser.add_option("--no-startstop", dest="do_startstop",
+ help="Skip instance stop/start", action="store_false",
+ default=True)
+ parser.add_option("--rename", dest="rename", default=None,
+ help="Give one unused instance name which is taken"
+ " to start the renaming sequence",
+ metavar="<instance_name>")
+ parser.add_option("-t", "--disk-template", dest="disk_template",
+ choices=("diskless", "file", "plain", "drbd"),
+ default="drbd",
+ help="Disk template (diskless, file, plain or drbd)"
+ " [drbd]")
+ parser.add_option("-n", "--nodes", dest="nodes", default="",
+ help="Comma separated list of nodes to perform"
+ " the burnin on (defaults to all nodes)")
+ parser.add_option("--iallocator", dest="iallocator",
+ default=None, type="string",
+ help="Perform the allocation using an iallocator"
+ " instead of fixed node spread (node restrictions no"
+ " longer apply, therefore -n/--nodes must not be used")
+
+ options, args = parser.parse_args()
+ if len(args) < 1 or options.os is None:
+ Usage()
+
+ supported_disk_templates = (constants.DT_DISKLESS,
+ constants.DT_FILE,
+ constants.DT_PLAIN,
+ constants.DT_DRBD8)
+ if options.disk_template not in supported_disk_templates:
+ Log("Unknown disk template '%s'" % options.disk_template)
+ sys.exit(1)
+
+ if options.nodes and options.iallocator:
+ Log("Give either the nodes option or the iallocator option, not both")
+ sys.exit(1)
+
+ self.opts = options
+ self.instances = args
+
+ def GetState(self):
+ """Read the cluster state from the config."""
+ if self.opts.nodes:
+ names = self.opts.nodes.split(",")
+ else:
+ names = []
+ try:
+ op = opcodes.OpQueryNodes(output_fields=["name"], names=names)
+ result = self.ExecOp(op)
+ except errors.GenericError, err:
+ err_code, msg = cli.FormatError(err)
+ Log(msg)
+ sys.exit(err_code)
+ self.nodes = [data[0] for data in result]
+
+ result = self.ExecOp(opcodes.OpDiagnoseOS(output_fields=["name", "valid"],
+ names=[]))
+
+ if not result:
+ Log("Can't get the OS list")
+ sys.exit(1)
+
+ # filter non-valid OS-es
+ os_set = [val[0] for val in result if val[1]]
+
+ if self.opts.os not in os_set:
+ Log("OS '%s' not found" % self.opts.os)
+ sys.exit(1)
+
+ def CreateInstances(self):
+ """Create the given instances.
+
+ """
+ self.to_rem = []
+ mytor = izip(cycle(self.nodes),
+ islice(cycle(self.nodes), 1, None),
+ self.instances)
+ for pnode, snode, instance in mytor:
+ if self.opts.iallocator:
+ pnode = snode = None
+ Log("- Add instance %s (iallocator: %s)" %
+ (instance, self.opts.iallocator))
+ elif self.opts.disk_template not in constants.DTS_NET_MIRROR:
+ snode = None
+ Log("- Add instance %s on node %s" % (instance, pnode))
else:
- tplate = constants.DT_PLAIN
+ Log("- Add instance %s on nodes %s/%s" % (instance, pnode, snode))
- op = opcodes.OpCreateInstance(instance_name=instance_name, mem_size=128,
- disk_size=opts.os_size,
- swap_size=opts.swap_size,
- disk_template=tplate,
+ op = opcodes.OpCreateInstance(instance_name=instance,
+ mem_size=self.opts.mem_size,
+ disk_size=self.opts.os_size,
+ swap_size=self.opts.swap_size,
+ disk_template=self.opts.disk_template,
mode=constants.INSTANCE_CREATE,
- os_type=opts.os, pnode=pnode,
- snode=snode, vcpus=1,
+ os_type=self.opts.os,
+ pnode=pnode,
+ snode=snode,
+ vcpus=1,
start=True,
- wait_for_sync=True)
- Feedback("- Add instance %s on node %s" % (instance_name, pnode))
- result = proc.ExecOpCode(op, Feedback)
- to_remove.append(instance_name)
- idx = next_idx
-
-
- if opts.do_replace1:
- if len(nodelist) > 1:
- # failover
- for instance_name in args:
- op = opcodes.OpReplaceDisks(instance_name=instance_name,
- remote_node=None)
-
- Feedback("- Replace disks for instance %s" % (instance_name))
- result = proc.ExecOpCode(op, Feedback)
+ ip_check=True,
+ wait_for_sync=True,
+ mac="auto",
+ kernel_path=None,
+ initrd_path=None,
+ hvm_boot_order=None,
+ file_driver="loop",
+ file_storage_dir=None,
+ iallocator=self.opts.iallocator)
+ self.ExecOp(op)
+ self.to_rem.append(instance)
+
+ def ReplaceDisks1D8(self):
+ """Replace disks on primary and secondary for drbd8."""
+ for instance in self.instances:
+ for mode in constants.REPLACE_DISK_SEC, constants.REPLACE_DISK_PRI:
+ op = opcodes.OpReplaceDisks(instance_name=instance,
+ mode=mode,
+ disks=["sda", "sdb"])
+ Log("- Replace disks (%s) for instance %s" % (mode, instance))
+ self.ExecOp(op)
+
+ def ReplaceDisks2(self):
+ """Replace secondary node."""
+ mode = constants.REPLACE_DISK_SEC
+
+ mytor = izip(islice(cycle(self.nodes), 2, None),
+ self.instances)
+ for tnode, instance in mytor:
+ if self.opts.iallocator:
+ tnode = None
+ op = opcodes.OpReplaceDisks(instance_name=instance,
+ mode=mode,
+ remote_node=tnode,
+ iallocator=self.opts.iallocator,
+ disks=["sda", "sdb"])
+ Log("- Replace secondary (%s) for instance %s" % (mode, instance))
+ self.ExecOp(op)
+
+ def Failover(self):
+ """Failover the instances."""
+
+ for instance in self.instances:
+ op = opcodes.OpFailoverInstance(instance_name=instance,
+ ignore_consistency=False)
+
+ Log("- Failover instance %s" % (instance))
+ self.ExecOp(op)
+
+ def ImportExport(self):
+ """Export the instance, delete it, and import it back.
+
+ """
+
+ mytor = izip(cycle(self.nodes),
+ islice(cycle(self.nodes), 1, None),
+ islice(cycle(self.nodes), 2, None),
+ self.instances)
+
+ for pnode, snode, enode, instance in mytor:
+
+ if self.opts.iallocator:
+ pnode = snode = None
+ import_log_msg = ("- Import instance %s from node %s (iallocator: %s)" %
+ (instance, enode, self.opts.iallocator))
+ elif self.opts.disk_template not in constants.DTS_NET_MIRROR:
+ snode = None
+ import_log_msg = ("- Import instance %s from node %s to node %s" %
+ (instance, enode, pnode))
else:
- Feedback("- Can't run replace1, not enough nodes")
+ import_log_msg = ("- Import instance %s from node %s to nodes %s/%s" %
+ (instance, enode, pnode, snode))
+
+ exp_op = opcodes.OpExportInstance(instance_name=instance,
+ target_node=enode,
+ shutdown=True)
+ rem_op = opcodes.OpRemoveInstance(instance_name=instance,
+ ignore_failures=True)
+ nam_op = opcodes.OpQueryInstances(output_fields=["name"],
+ names=[instance])
+ full_name = self.ExecOp(nam_op)[0][0]
+ imp_dir = os.path.join(constants.EXPORT_DIR, full_name)
+ imp_op = opcodes.OpCreateInstance(instance_name=instance,
+ mem_size=128,
+ disk_size=self.opts.os_size,
+ swap_size=self.opts.swap_size,
+ disk_template=self.opts.disk_template,
+ mode=constants.INSTANCE_IMPORT,
+ src_node=enode,
+ src_path=imp_dir,
+ pnode=pnode,
+ snode=snode,
+ vcpus=1,
+ start=True,
+ ip_check=True,
+ wait_for_sync=True,
+ mac="auto",
+ file_storage_dir=None,
+ file_driver=None,
+ iallocator=self.opts.iallocator)
+ erem_op = opcodes.OpRemoveExport(instance_name=instance)
+
+ Log("- Export instance %s to node %s" % (instance, enode))
+ self.ExecOp(exp_op)
+ Log("- Remove instance %s" % (instance))
+ self.ExecOp(rem_op)
+ self.to_rem.remove(instance)
+ Log(import_log_msg)
+ self.ExecOp(imp_op)
+ Log("- Remove export of instance %s" % (instance))
+ self.ExecOp(erem_op)
+
+ self.to_rem.append(instance)
+
+ def StopInstance(self, instance):
+ """Stop given instance."""
+ op = opcodes.OpShutdownInstance(instance_name=instance)
+ Log("- Shutdown instance %s" % instance)
+ self.ExecOp(op)
+
+ def StartInstance(self, instance):
+ """Start given instance."""
+ op = opcodes.OpStartupInstance(instance_name=instance, force=False)
+ Log("- Start instance %s" % instance)
+ self.ExecOp(op)
+
+ def RenameInstance(self, instance, instance_new):
+ """Rename instance."""
+ op = opcodes.OpRenameInstance(instance_name=instance,
+ new_name=instance_new)
+ Log("- Rename instance %s to %s" % (instance, instance_new))
+ self.ExecOp(op)
+
+ def StopStart(self):
+ """Stop/start the instances."""
+ for instance in self.instances:
+ self.StopInstance(instance)
+ self.StartInstance(instance)
+
+ def Remove(self):
+ """Remove the instances."""
+ for instance in self.to_rem:
+ op = opcodes.OpRemoveInstance(instance_name=instance,
+ ignore_failures=True)
+ Log("- Remove instance %s" % instance)
+ self.ExecOp(op)
+
+
+ def Rename(self):
+ """Rename the instances."""
+ rename = self.opts.rename
+ for instance in self.instances:
+ self.StopInstance(instance)
+ self.RenameInstance(instance, rename)
+ self.StartInstance(rename)
+ self.StopInstance(rename)
+ self.RenameInstance(rename, instance)
+ self.StartInstance(instance)
+
+ def BurninCluster(self):
+ """Test a cluster intensively.
+
+ This will create instances and then start/stop/failover them.
+ It is safe for existing instances but could impact performance.
+
+ """
+
+ opts = self.opts
+
+ Log("- Testing global parameters")
+
+ if (len(self.nodes) == 1 and
+ opts.disk_template not in (constants.DT_DISKLESS, constants.DT_PLAIN,
+ constants.DT_FILE)):
+ Log("When one node is available/selected the disk template must"
+ " be 'diskless', 'file' or 'plain'")
+ sys.exit(1)
+
+ has_err = True
+ try:
+ self.CreateInstances()
+ if opts.do_replace1 and opts.disk_template in constants.DTS_NET_MIRROR:
+ self.ReplaceDisks1D8()
+ if (opts.do_replace2 and len(self.nodes) > 2 and
+ opts.disk_template in constants.DTS_NET_MIRROR) :
+ self.ReplaceDisks2()
+
+ if opts.do_failover and opts.disk_template in constants.DTS_NET_MIRROR:
+ self.Failover()
+
+ if opts.do_importexport:
+ self.ImportExport()
+
+ if opts.do_startstop:
+ self.StopStart()
+
+ if opts.rename:
+ self.Rename()
+
+ has_err = False
+ finally:
+ if has_err:
+ Log("Error detected: opcode buffer follows:\n\n")
+ Log(self.GetFeedbackBuf())
+ Log("\n\n")
+ self.Remove()
+
+ return 0
- if opts.do_failover:
- if len(nodelist) > 1:
- # failover
- for instance_name in args:
- op = opcodes.OpFailoverInstance(instance_name=instance_name,
- ignore_consistency=True)
-
- Feedback("- Failover instance %s" % (instance_name))
- result = proc.ExecOpCode(op, Feedback)
- else:
- Feedback("- Can't run failovers, not enough nodes")
-
- # stop / start
- for instance_name in args:
- op = opcodes.OpShutdownInstance(instance_name=instance_name)
- Feedback("- Shutdown instance %s" % instance_name)
- result = proc.ExecOpCode(op, Feedback)
- op = opcodes.OpStartupInstance(instance_name=instance_name, force=False)
- Feedback("- Start instance %s" % instance_name)
- result = proc.ExecOpCode(op, Feedback)
-
- finally:
- # remove
- for instance_name in to_remove:
- op = opcodes.OpRemoveInstance(instance_name=instance_name)
- Feedback("- Remove instance %s" % instance_name)
- result = proc.ExecOpCode(op, Feedback)
-
- return 0
def main():
"""Main function"""
- opts, args = ParseOptions()
- try:
- utils.Lock('cmd', max_retries=15, debug=True)
- except errors.LockError, err:
- logger.ToStderr(str(err))
- return 1
- try:
- retval = BurninCluster(opts, args)
- finally:
- utils.Unlock('cmd')
- utils.LockCleanup()
- return retval
+ burner = Burner()
+ return burner.BurninCluster()
+
if __name__ == "__main__":
main()
projects / ganeti-local / blobdiff