Re: cephadm & iSCSI

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Hi,

Isn't this the same issue reported in https://tracker.ceph.com/issues/45252 which was fixed on v15.2.5?

Which ceph version are you using?

Ricardo Marques
________________________________
From: Sebastian Wagner <swagner@xxxxxxxx>
Sent: Friday, September 4, 2020 4:51 PM
To: Robert Sander <r.sander@xxxxxxxxxxxxxxxxxxx>; ceph-users@xxxxxxx <ceph-users@xxxxxxx>
Subject:  Re: cephadm & iSCSI

Thanks! do you want to create a bug for that?

https://tracker.ceph.com/projects/orchestrator/issues/new

Am 04.09.20 um 15:25 schrieb Robert Sander:
> Hi,
>
> yes, I have read https://docs.ceph.com/docs/octopus/cephadm/stability/
> and know that the iSCSI support is still under development.
>
> But why is the command "ceph orch apply iscsi" available
> when cephadmin is the orchestrator backend?
>
> I am at the stage that I successfully rolled out an iSCSI gateway
> which is visible in the Ceph dashboard.
>
> But when trying to setup a target an error occurs:
>
> Sep 04 15:15:58 ceph02 rbd-target-api[124040]: Unable to create the Target definition - Could not load module: iscsi_target_mod
> Sep 04 15:15:58 ceph02 rbd-target-api[124040]: Unhandled Exception
>                                                Traceback (most recent call last):
>                                                  File "/usr/lib/python3.6/site-packages/rtslib_fb/node.py", line 71, in _create_in_cfs_ine
>                                                    os.mkdir(self.path)
>                                                FileNotFoundError: [Errno 2] No such file or directory: '/sys/kernel/config/target/iscsi'
>
>                                                During handling of the above exception, another exception occurred:
>
>                                                Traceback (most recent call last):
>                                                  File "/usr/lib/python3.6/site-packages/rtslib_fb/fabric.py", line 156, in _check_self
>                                                    self._create_in_cfs_ine('any')
>                                                  File "/usr/lib/python3.6/site-packages/rtslib_fb/node.py", line 74, in _create_in_cfs_ine
>                                                    % self.__class__.__name__)
>                                                rtslib_fb.utils.RTSLibError: Could not create ISCSIFabricModule in configFS
>
>                                                During handling of the above exception, another exception occurred:
>
>                                                Traceback (most recent call last):
>                                                  File "/usr/lib/python3.6/site-packages/rtslib_fb/utils.py", line 432, in modprobe
>                                                    kmod.Kmod().modprobe(module)
>                                                  File "kmod/kmod.pyx", line 106, in kmod.kmod.Kmod.modprobe
>                                                  File "kmod/kmod.pyx", line 82, in lookup
>                                                kmod.error.KmodError: Could not modprobe
>
>                                                During handling of the above exception, another exception occurred:
>
>                                                Traceback (most recent call last):
>                                                  File "/usr/lib/python3.6/site-packages/flask/app.py", line 1612, in full_dispatch_request
>                                                    rv = self.dispatch_request()
>                                                  File "/usr/lib/python3.6/site-packages/flask/app.py", line 1598, in dispatch_request
>                                                    return self.view_functions[rule.endpoint](**req.view_args)
>                                                  File "/usr/bin/rbd-target-api", line 106, in decorated
>                                                    return f(*args, **kwargs)
>                                                  File "/usr/bin/rbd-target-api", line 304, in target
>                                                    target.manage('init')
>                                                  File "/usr/lib/python3.6/site-packages/ceph_iscsi_config/target.py", line 710, in manage
>                                                    'mutual_password_encryption_enabled'])
>                                                  File "/usr/lib/python3.6/site-packages/ceph_iscsi_config/discovery.py", line 14, in set_discovery_auth_lio
>                                                    iscsi_fabric.clear_discovery_auth_settings()
>                                                  File "/usr/lib/python3.6/site-packages/rtslib_fb/fabric.py", line 224, in clear_discovery_auth_settings
>                                                    self._check_self()
>                                                  File "/usr/lib/python3.6/site-packages/rtslib_fb/fabric.py", line 158, in _check_self
>                                                    modprobe(self.kernel_module)
>                                                  File "/usr/lib/python3.6/site-packages/rtslib_fb/utils.py", line 434, in modprobe
>                                                    raise RTSLibError("Could not load module: %s" % module)
>                                                rtslib_fb.utils.RTSLibError: Could not load module: iscsi_target_mod
>
> Solution:
>
> "modprobe iscsi_target_mod" on the host itself,
> the container is not allowed to do that.
>
> Regards
>
>
> _______________________________________________
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>

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