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# Copyright (C) 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.
"""Utilities for QA tests.
"""
import os
import subprocess
from ganeti import utils
import qa_config
import qa_error
def AssertEqual(first, second, msg=None):
"""Raises an error when values aren't equal.
"""
if not first == second:
raise qa_error.Error(msg or '%r == %r' % (first, second))
def GetSSHCommand(node, cmd, strict=True):
"""Builds SSH command to be executed.
"""
args = [ 'ssh', '-oEscapeChar=none', '-oBatchMode=yes', '-l', 'root' ]
if strict:
tmp = 'yes'
else:
tmp = 'no'
args.append('-oStrictHostKeyChecking=%s' % tmp)
args.append('-oClearAllForwardings=yes')
args.append('-oForwardAgent=yes')
args.append(node)
if qa_config.options.dry_run:
prefix = 'exit 0; '
else:
prefix = ''
args.append(prefix + cmd)
print 'SSH:', utils.ShellQuoteArgs(args)
return args
def StartSSH(node, cmd, strict=True):
"""Starts SSH.
"""
args = GetSSHCommand(node, cmd, strict=strict)
return subprocess.Popen(args, shell=False)
def UploadFile(node, src):
"""Uploads a file to a node and returns the filename.
Caller needs to remove the returned file on the node when it's not needed
anymore.
"""
# Make sure nobody else has access to it while preserving local permissions
mode = os.stat(src).st_mode & 0700
cmd = ('tmp=$(tempfile --mode %o --prefix gnt) && '
'[[ -f "${tmp}" ]] && '
'cat > "${tmp}" && '
'echo "${tmp}"') % mode
f = open(src, 'r')
try:
p = subprocess.Popen(GetSSHCommand(node, cmd), shell=False, stdin=f,
stdout=subprocess.PIPE)
AssertEqual(p.wait(), 0)
# Return temporary filename
return p.stdout.read().strip()
finally:
f.close()
def ResolveInstanceName(instance):
"""Gets the full name of an instance.
"""
master = qa_config.GetMasterNode()
info_cmd = utils.ShellQuoteArgs(['gnt-instance', 'info', instance['name']])
sed_cmd = utils.ShellQuoteArgs(['sed', '-n', '-e', 's/^Instance name: *//p'])
cmd = '%s | %s' % (info_cmd, sed_cmd)
ssh_cmd = GetSSHCommand(master['primary'], cmd)
p = subprocess.Popen(ssh_cmd, shell=False, stdout=subprocess.PIPE)
AssertEqual(p.wait(), 0)
return p.stdout.read().strip()