def get_console_output(self, context, instance):
"""Get console output for an instance
:param context: security context
:param instance: nova.objects.instance.Instance
"""
LOG.debug('get_console_output called for instance', instance=instance)
try:
console_log = self.container_dir.get_console_path(instance.name)
if not os.path.exists(console_log):
return ""
uid = pwd.getpwuid(os.getuid()).pw_uid
utils.execute('chown', '%s:%s' % (uid, uid),
console_log, run_as_root=True)
utils.execute('chmod', '755',
os.path.join(
self.container_dir.get_container_dir(
instance.name), instance.name),
run_as_root=True)
with open(console_log, 'rb') as fp:
log_data, remaning = utils.last_bytes(fp,
MAX_CONSOLE_BYTES)
return log_data
except Exception as ex:
with excutils.save_and_reraise_exception():
LOG.error(_LE('Failed to get container output'
' for %(instance)s: %(ex)s'),
{'instance': instance.name, 'ex': ex},
instance=instance)
def get_console_output(self, context, instance):
"""Get console output for an instance
:param context: security context
:param instance: nova.objects.instance.Instance
"""
LOG.debug('get_console_output called for instance', instance=instance)
try:
console_log = self.container_dir.get_console_path(instance.name)
if not os.path.exists(console_log):
return ""
uid = pwd.getpwuid(os.getuid()).pw_uid
utils.execute('chown',
'%s:%s' % (uid, uid),
console_log,
run_as_root=True)
utils.execute('chmod',
'755',
os.path.join(
self.container_dir.get_container_dir(
instance.name), instance.name),
run_as_root=True)
with open(console_log, 'rb') as fp:
log_data, remaning = utils.last_bytes(fp, MAX_CONSOLE_BYTES)
return log_data
except Exception as ex:
with excutils.save_and_reraise_exception():
LOG.error(_LE('Failed to get container output'
' for %(instance)s: %(ex)s'), {
'instance': instance.name,
'ex': ex
},
instance=instance)
def get_container_console(self, instance):
LOG.debug('Container console log')
console_log = container_utils.get_container_console(instance)
with open(console_log, 'rb') as fp:
log_data, remaining = utils.last_bytes(fp, MAX_CONSOLE_BYTES)
if remaining > 0:
LOG.info(_('Truncated console log returned, '
'%d bytes ignored'),
remaining, instance=instance)
return log_data
def get_container_console(self, instance):
LOG.debug('Container console log')
console_log = container_utils.get_container_console(instance)
with open(console_log, 'rb') as fp:
log_data, remaining = utils.last_bytes(fp, MAX_CONSOLE_BYTES)
if remaining > 0:
LOG.info(_('Truncated console log returned, '
'%d bytes ignored'),
remaining,
instance=instance)
return log_data
def get_console_output(self, context, instance):
LOG.debug('in console output')
console_log = self.container_dir.get_console_path(instance.uuid)
uid = pwd.getpwuid(os.getuid()).pw_uid
utils.execute('chown', '%s:%s' % (uid, uid),
console_log, run_as_root=True)
utils.execute('chmod', '755',
self.container_dir.get_container_dir(instance.uuid),
run_as_root=True)
with open(console_log, 'rb') as fp:
log_data, remaning = utils.last_bytes(fp,
MAX_CONSOLE_BYTES)
return log_data
def get_console_log(self, instance):
if self.client.container_defined(instance.uuid):
return
console_dir = os.path.join(CONF.lxd.lxd_root_dir, instance.uuid)
console_log = self._get_console_path(instance)
uid = pwd.getpwuid(os.getuid()).pw_uid
utils.execute('chown', '%s:%s' %
(uid, uid), console_log, run_as_root=True)
utils.execute('chmod', '755', console_dir, run_as_root=True)
with open(console_log, 'rb') as fp:
log_data, remaining = utils.last_bytes(fp, MAX_CONSOLE_BYTES)
if remaining > 0:
LOG.info(_('Truncated console log returned, '
'%d bytes ignored'),
remaining, instance=instance)
return log_data
def get_console_output(self, context, instance):
"""Get the output of the container console.
See `nova.virt.driver.ComputeDriver.get_console_output` for more
information.
"""
instance_attrs = common.InstanceAttributes(instance)
console_path = instance_attrs.console_path
if not os.path.exists(console_path):
return ''
uid = pwd.getpwuid(os.getuid()).pw_uid
utils.execute(
'chown', '%s:%s' % (uid, uid), console_path, run_as_root=True)
utils.execute(
'chmod', '755', instance_attrs.container_path, run_as_root=True)
with open(console_path, 'rb') as f:
log_data, _ = utils.last_bytes(f, MAX_CONSOLE_BYTES)
return log_data
def get_console_output(self, context, instance):
LOG.debug('in console output')
console_log = self.container_dir.get_console_path(instance.name)
if not os.path.exists(console_log):
return
uid = pwd.getpwuid(os.getuid()).pw_uid
utils.execute('chown', '%s:%s' % (uid, uid),
console_log, run_as_root=True)
utils.execute('chmod', '755',
os.path.join(
self.container_dir.get_container_dir(
instance.name), instance.name),
run_as_root=True)
with open(console_log, 'rb') as fp:
log_data, remaning = utils.last_bytes(fp,
MAX_CONSOLE_BYTES)
return log_data
def test_seek_too_far_real_file(self):
# StringIO doesn't raise IOError if you see past the start of the file.
with tempfile.TemporaryFile() as flo:
content = b'1234567890'
flo.write(content)
self.assertEqual((content, 0), utils.last_bytes(flo, 1000))
def test_read_all(self):
self.f.seek(0, os.SEEK_SET)
out, remaining = utils.last_bytes(self.f, 1000)
self.assertEqual(out, b'1234567890')
self.assertFalse(remaining > 0)
def test_truncated(self):
self.f.seek(0, os.SEEK_SET)
out, remaining = utils.last_bytes(self.f, 5)
self.assertEqual(out, b'67890')
self.assertTrue(remaining > 0)
def test_seek_too_far_real_file(self):
# StringIO doesn't raise IOError if you see past the start of the file.
flo = tempfile.TemporaryFile()
content = '1234567890'
flo.write(content)
self.assertEqual((content, 0), utils.last_bytes(flo, 1000))
def test_read_all(self):
self.f.seek(0, os.SEEK_SET)
out, remaining = utils.last_bytes(self.f, 1000)
self.assertEqual(out, '1234567890')
self.assertFalse(remaining > 0)
def test_truncated(self):
self.f.seek(0, os.SEEK_SET)
out, remaining = utils.last_bytes(self.f, 5)
self.assertEqual(out, '67890')
self.assertTrue(remaining > 0)
def test_truncated(self):
self.f.seek(0, os.SEEK_SET)
out, remaining = utils.last_bytes(self.f, 5)
self.assertEqual(out, b"67890")
self.assertGreater(remaining, 0)
