Reviewed: https://review.openstack.org/196482
Committed:
https://git.openstack.org/cgit/openstack/nova/commit/?id=89a61ab8f4602e018763afb173e1a862f151a222
Submitter: Jenkins
Branch: master
commit 89a61ab8f4602e018763afb173e1a862f151a222
Author: Tomoki Sekiyama <tomoki.sekiyama...@hitachi.com>
Date: Thu Jun 25 17:41:47 2015 -0400
Fix multipath iSCSI encrypted volume attach failure
Currently iSCSI volume attachment fails if iscsi_use_multipath is
set to True. This is because the encryptor requests cryptsetup
to create the symlink to the LUKS device with the same name of
the device-mapper multipath device. To avoid the name collision,
this patch adds the 'crypt-' prefix to the symlink.
Change-Id: I01a3104025a9c479e40933ca24024355df9dfb8b
Closes-Bug: #1439869
** Changed in: nova
Status: In Progress => Fix Released
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https://bugs.launchpad.net/bugs/1439869
Title:
encrypted iSCSI volume attach fails when iscsi_use_multipath is
enabled
Status in OpenStack Compute (nova):
Fix Released
Status in OpenStack Compute (nova) liberty series:
New
Status in OpenStack Compute (nova) mitaka series:
In Progress
Bug description:
When attempting to attach an encrypted iSCSI volume to an instance
with iscsi_use_multipath set to True in nova.conf an error occurs in
n-cpu.
The devstack system being used had the following nova version:
commit ab25f5f34b6ee37e495aa338aeb90b914f622b9d
Merge "instance termination with update_dns_entries set fails"
The following error occurs in n-cpu:
Stack Trace:
2015-04-02 13:46:22.641 ERROR nova.virt.block_device
[req-61f49ff8-b814-42c0-8cf8-ffe7b6a3561c admin admin] [instance:
41d0c192-a1ce-45eb-a5ff-bcb96ec0d8e5] Driver failed to attach volume
4778e71c-a1b5-4d
b5-b677-1d8191468e87 at /dev/vdb
2015-04-02 13:46:22.641 TRACE nova.virt.block_device [instance:
41d0c192-a1ce-45eb-a5ff-bcb96ec0d8e5] Traceback (most recent call last):
2015-04-02 13:46:22.641 TRACE nova.virt.block_device [instance:
41d0c192-a1ce-45eb-a5ff-bcb96ec0d8e5] File
"/opt/stack/nova/nova/virt/block_device.py", line 251, in attach
2015-04-02 13:46:22.641 TRACE nova.virt.block_device [instance:
41d0c192-a1ce-45eb-a5ff-bcb96ec0d8e5] device_type=self['device_type'],
encryption=encryption)
2015-04-02 13:46:22.641 TRACE nova.virt.block_device [instance:
41d0c192-a1ce-45eb-a5ff-bcb96ec0d8e5] File
"/opt/stack/nova/nova/virt/libvirt/driver.py", line 1064, in attach_volume
2015-04-02 13:46:22.641 TRACE nova.virt.block_device [instance:
41d0c192-a1ce-45eb-a5ff-bcb96ec0d8e5]
self._disconnect_volume(connection_info, disk_dev)
2015-04-02 13:46:22.641 TRACE nova.virt.block_device [instance:
41d0c192-a1ce-45eb-a5ff-bcb96ec0d8e5] File
"/usr/local/lib/python2.7/dist-packages/oslo_utils/excutils.py", line 85, in
__exit__
2015-04-02 13:46:22.641 TRACE nova.virt.block_device [instance:
41d0c192-a1ce-45eb-a5ff-bcb96ec0d8e5] six.reraise(self.type_, self.value,
self.tb)
2015-04-02 13:46:22.641 TRACE nova.virt.block_device [instance:
41d0c192-a1ce-45eb-a5ff-bcb96ec0d8e5] File
"/opt/stack/nova/nova/virt/libvirt/driver.py", line 1051, in attach_volume
2015-04-02 13:46:22.641 TRACE nova.virt.block_device [instance:
41d0c192-a1ce-45eb-a5ff-bcb96ec0d8e5] encryptor.attach_volume(context,
**encryption)
2015-04-02 13:46:22.641 TRACE nova.virt.block_device [instance:
41d0c192-a1ce-45eb-a5ff-bcb96ec0d8e5] File
"/opt/stack/nova/nova/volume/encryptors/cryptsetup.py", line 93, in
attach_volume
2015-04-02 13:46:22.641 TRACE nova.virt.block_device [instance:
41d0c192-a1ce-45eb-a5ff-bcb96ec0d8e5] self._open_volume(passphrase,
**kwargs)
2015-04-02 13:46:22.641 TRACE nova.virt.block_device [instance:
41d0c192-a1ce-45eb-a5ff-bcb96ec0d8e5] File
"/opt/stack/nova/nova/volume/encryptors/cryptsetup.py", line 78, in _open_volume
2015-04-02 13:46:22.641 TRACE nova.virt.block_device [instance:
41d0c192-a1ce-45eb-a5ff-bcb96ec0d8e5] check_exit_code=True,
run_as_root=True)
2015-04-02 13:46:22.641 TRACE nova.virt.block_device [instance:
41d0c192-a1ce-45eb-a5ff-bcb96ec0d8e5] File "/opt/stack/nova/nova/utils.py",
line 206, in execute
2015-04-02 13:46:22.641 TRACE nova.virt.block_device [instance:
41d0c192-a1ce-45eb-a5ff-bcb96ec0d8e5] return processutils.execute(*cmd,
**kwargs)
2015-04-02 13:46:22.641 TRACE nova.virt.block_device [instance:
41d0c192-a1ce-45eb-a5ff-bcb96ec0d8e5] File
"/usr/local/lib/python2.7/dist-packages/oslo_concurrency/processutils.py", line
233, in execute
2015-04-02 13:46:22.641 TRACE nova.virt.block_device [instance:
41d0c192-a1ce-45eb-a5ff-bcb96ec0d8e5] cmd=sanitized_cmd)
2015-04-02 13:46:22.641 TRACE nova.virt.block_device [instance:
41d0c192-a1ce-45eb-a5ff-bcb96ec0d8e5] ProcessExecutionError: Unexpected error
while running command.
2015-04-02 13:46:22.641 TRACE nova.virt.block_device [instance:
41d0c192-a1ce-45eb-a5ff-bcb96ec0d8e5] Command: sudo nova-rootwrap
/etc/nova/rootwrap.conf cryptsetup create --key-file=- 36000eb37601bcf0200
0000000000036c /dev/mapper/36000eb37601bcf02000000000000036c
2015-04-02 13:46:22.641 TRACE nova.virt.block_device [instance:
41d0c192-a1ce-45eb-a5ff-bcb96ec0d8e5] Exit code: 1
2015-04-02 13:46:22.641 TRACE nova.virt.block_device [instance:
41d0c192-a1ce-45eb-a5ff-bcb96ec0d8e5] Stdout: u''
2015-04-02 13:46:22.641 TRACE nova.virt.block_device [instance:
41d0c192-a1ce-45eb-a5ff-bcb96ec0d8e5] Stderr: u''
2015-04-02 13:46:22.641 TRACE nova.virt.block_device [instance:
41d0c192-a1ce-45eb-a5ff-bcb96ec0d8e5]
multipath-tools was installed
iscsi_use_multipath = True was set under the [libvirt] entry in nova.conf
To reproduce:
install multipath-tools
set iscsi_use_multipath to True in nova.conf under the [libvirt] section.
create an encrypted iSCSI volume and attempt to attach it to an instance (I
was using CryptsetupEncryptor).
The above error will occur in n-cpu.
Possibly related bug: https://bugs.launchpad.net/nova/+bug/1439855
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