** Changed in: nova
Status: Confirmed => Fix Released
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https://bugs.launchpad.net/bugs/1403836
Title:
Nova volume attach fails for a iscsi disk with CHAP enabled.
Status in OpenStack Compute (nova):
Fix Released
Status in os-win:
Fix Released
Bug description:
I was trying nova volume attach of a disk with CHAP enabled on
Windows(HyperV driver), I notice that the attach volume fails with
CHAP authentication enforced and the same works without CHAP
authentication set.
My current setup is Juno based:
I saw a similar bug reported as
https://bugs.launchpad.net/nova/+bug/1397549 . The fix of which is
as per
https://review.openstack.org/#/c/137623/ and
https://review.openstack.org/#/c/134592/ .
Even after incorporating these changes things do not work and it
needs an additional fix.
Issue: The issue even after having the code as in the commits
mentioned earlier is that – when we try to do nova volume-attach , on
Hyperv host we first do a login to portal , then attach the volume to
target.
Now, if we login to portal without chap authentication – it will fail
(Authentication failure) and hence the code needs to be changed here
(https://github.com/openstack/nova/blob/master/nova/virt/hyperv/volumeutilsv2.py#L64-65
) .
Resoultion: While creating/adding the new portal we need to add it with the
CHAP credentials (as the way it is done on target.connect) .
Sample snippet of the fix would be;
if portal:
portal[0].Update()
else:
# Adding target portal to iscsi initiator. Sending targets
LOG.debug("Create a new portal")
auth = {}
if auth_username and auth_password:
auth['AuthenticationType'] = self._CHAP_AUTH_TYPE
auth['ChapUsername'] = auth_username
auth['ChapSecret'] = auth_password
LOG.debug(auth)
portal = self._conn_storage.MSFT_iSCSITargetPortal
portal.New(TargetPortalAddress=target_address,
TargetPortalPortNumber=target_port, **auth)
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