Files
python-ganttclient/nova/tests/test_virt_disk.py
Pádraig Brady 4a10ed1ae0 ensure failure to inject user files results in startup error
This was the case in Essex but was inadvertantly changed in:
folsom-2-95-g0d166ca.

* nova/virt/disk/api.py: Refactor to allow specifying
mandatory injection items, that result in an exception
on failure to inject.
* nova/virt/libvirt/driver.py: Specify that user 'files'
are mandatory items and thus result in VM startup failure
unless injected successfully.
* nova/tests/test_virt_disk.py: A new test for the
separate warning and error cases.

Fixes bug: 1095744
Change-Id: Idab5c4294c1cb52098ce44a7aae957a44fb2674f
2013-01-22 14:50:35 +00:00

220 lines
8.8 KiB
Python

# vim: tabstop=4 shiftwidth=4 softtabstop=4
#
# Copyright (C) 2012 Red Hat, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
import os
import sys
from nova import exception
from nova import test
from nova.tests import fakeguestfs
from nova.virt.disk import api as diskapi
from nova.virt.disk.vfs import guestfs as vfsguestfs
class VirtDiskTest(test.TestCase):
def setUp(self):
super(VirtDiskTest, self).setUp()
sys.modules['guestfs'] = fakeguestfs
vfsguestfs.guestfs = fakeguestfs
def test_inject_data(self):
self.assertTrue(diskapi.inject_data("/some/file", use_cow=True))
self.assertTrue(diskapi.inject_data("/some/file",
mandatory=('files',)))
self.assertTrue(diskapi.inject_data("/some/file", key="mysshkey",
mandatory=('key',)))
os_name = os.name
os.name = 'nt' # Cause password injection to fail
self.assertRaises(exception.NovaException,
diskapi.inject_data,
"/some/file", admin_password="p",
mandatory=('admin_password',))
self.assertFalse(diskapi.inject_data("/some/file", admin_password="p"))
os.name = os_name
def test_inject_data_key(self):
vfs = vfsguestfs.VFSGuestFS("/some/file", "qcow2")
vfs.setup()
diskapi._inject_key_into_fs("mysshkey", vfs)
self.assertTrue("/root/.ssh" in vfs.handle.files)
self.assertEquals(vfs.handle.files["/root/.ssh"],
{'isdir': True, 'gid': 0, 'uid': 0, 'mode': 0700})
self.assertTrue("/root/.ssh/authorized_keys" in vfs.handle.files)
self.assertEquals(vfs.handle.files["/root/.ssh/authorized_keys"],
{'isdir': False,
'content': "Hello World\n# The following ssh " +
"key was injected by Nova\nmysshkey\n",
'gid': 100,
'uid': 100,
'mode': 0700})
vfs.teardown()
def test_inject_data_key_with_selinux(self):
vfs = vfsguestfs.VFSGuestFS("/some/file", "qcow2")
vfs.setup()
vfs.make_path("etc/selinux")
vfs.make_path("etc/rc.d")
diskapi._inject_key_into_fs("mysshkey", vfs)
self.assertTrue("/etc/rc.d/rc.local" in vfs.handle.files)
self.assertEquals(vfs.handle.files["/etc/rc.d/rc.local"],
{'isdir': False,
'content': "Hello World#!/bin/sh\n# Added by " +
"Nova to ensure injected ssh keys " +
"have the right context\nrestorecon " +
"-RF root/.ssh 2>/dev/null || :\n",
'gid': 100,
'uid': 100,
'mode': 0700})
self.assertTrue("/root/.ssh" in vfs.handle.files)
self.assertEquals(vfs.handle.files["/root/.ssh"],
{'isdir': True, 'gid': 0, 'uid': 0, 'mode': 0700})
self.assertTrue("/root/.ssh/authorized_keys" in vfs.handle.files)
self.assertEquals(vfs.handle.files["/root/.ssh/authorized_keys"],
{'isdir': False,
'content': "Hello World\n# The following ssh " +
"key was injected by Nova\nmysshkey\n",
'gid': 100,
'uid': 100,
'mode': 0700})
vfs.teardown()
def test_inject_data_key_with_selinux_append_with_newline(self):
vfs = vfsguestfs.VFSGuestFS("/some/file", "qcow2")
vfs.setup()
vfs.replace_file("/etc/rc.d/rc.local", "#!/bin/sh\necho done")
vfs.make_path("etc/selinux")
vfs.make_path("etc/rc.d")
diskapi._inject_key_into_fs("mysshkey", vfs)
self.assertTrue("/etc/rc.d/rc.local" in vfs.handle.files)
self.assertEquals(vfs.handle.files["/etc/rc.d/rc.local"],
{'isdir': False,
'content': "#!/bin/sh\necho done\n# Added "
"by Nova to ensure injected ssh keys have "
"the right context\nrestorecon -RF "
"root/.ssh 2>/dev/null || :\n",
'gid': 100,
'uid': 100,
'mode': 0700})
vfs.teardown()
def test_inject_net(self):
vfs = vfsguestfs.VFSGuestFS("/some/file", "qcow2")
vfs.setup()
diskapi._inject_net_into_fs("mynetconfig", vfs)
self.assertTrue("/etc/network/interfaces" in vfs.handle.files)
self.assertEquals(vfs.handle.files["/etc/network/interfaces"],
{'content': 'mynetconfig',
'gid': 100,
'isdir': False,
'mode': 0700,
'uid': 100})
vfs.teardown()
def test_inject_metadata(self):
vfs = vfsguestfs.VFSGuestFS("/some/file", "qcow2")
vfs.setup()
diskapi._inject_metadata_into_fs([{"key": "foo",
"value": "bar"},
{"key": "eek",
"value": "wizz"}], vfs)
self.assertTrue("/meta.js" in vfs.handle.files)
self.assertEquals(vfs.handle.files["/meta.js"],
{'content': '{"foo": "bar", ' +
'"eek": "wizz"}',
'gid': 100,
'isdir': False,
'mode': 0700,
'uid': 100})
vfs.teardown()
def test_inject_admin_password(self):
vfs = vfsguestfs.VFSGuestFS("/some/file", "qcow2")
vfs.setup()
def fake_salt():
return "1234567890abcdef"
self.stubs.Set(diskapi, '_generate_salt', fake_salt)
vfs.handle.write("/etc/shadow",
"root:$1$12345678$xxxxx:14917:0:99999:7:::\n" +
"bin:*:14495:0:99999:7:::\n" +
"daemon:*:14495:0:99999:7:::\n")
vfs.handle.write("/etc/passwd",
"root:x:0:0:root:/root:/bin/bash\n" +
"bin:x:1:1:bin:/bin:/sbin/nologin\n" +
"daemon:x:2:2:daemon:/sbin:/sbin/nologin\n")
diskapi._inject_admin_password_into_fs("123456", vfs)
self.assertEquals(vfs.handle.files["/etc/passwd"],
{'content': "root:x:0:0:root:/root:/bin/bash\n" +
"bin:x:1:1:bin:/bin:/sbin/nologin\n" +
"daemon:x:2:2:daemon:/sbin:" +
"/sbin/nologin\n",
'gid': 100,
'isdir': False,
'mode': 0700,
'uid': 100})
shadow = vfs.handle.files["/etc/shadow"]
# if the encrypted password is only 13 characters long, then
# nova.virt.disk.api:_set_password fell back to DES.
if len(shadow['content']) == 91:
self.assertEquals(shadow,
{'content': "root:12tir.zIbWQ3c" +
":14917:0:99999:7:::\n" +
"bin:*:14495:0:99999:7:::\n" +
"daemon:*:14495:0:99999:7:::\n",
'gid': 100,
'isdir': False,
'mode': 0700,
'uid': 100})
else:
self.assertEquals(shadow,
{'content': "root:$1$12345678$a4ge4d5iJ5vw" +
"vbFS88TEN0:14917:0:99999:7:::\n" +
"bin:*:14495:0:99999:7:::\n" +
"daemon:*:14495:0:99999:7:::\n",
'gid': 100,
'isdir': False,
'mode': 0700,
'uid': 100})
vfs.teardown()