Hey Cody,
I recall hitting a related problem, when both Glance and Cinder use the
same NFS server, while each service uses it's own share if both shares
reside on same NFS server you may hit an selinux issue.
The original bug I hit/reported, was closed EOL.
https://bugzilla.redhat.com/show_bug.cgi?id=1491597
Notice 4th comment, adding nosharecache mount option helped me.
I'll re-check this on queens as well maybe need to rebug it.
Thanks
Tzach
On Sun, Oct 7, 2018 at 6:32 AM Cody <codeology.lab(a)gmail.com> wrote:
Hi everyone,
I have an issue with using TripleO (Queens) to setup an NFS backend for
Cinder.
My storage.yaml is as follows:
parameter_defaults:
CinderEnableIscsiBackend: false
CinderEnableRbdBackend: false
CinderEnableNfsBackend: true
NovaEnableRbdBackend: false
GlanceBackend: 'file'
CinderNfsMountOptions: 'rw,sync'
CinderNfsServers: '192.168.24.1:/export/cinder'
GlanceNfsEnabled: true
GlanceNfsShare: '192.168.24.1:/export/glance'
GlanceNfsOptions: 'rw,sync,context=system_u:object_r:glance_var_lib_t:s0'
NovaNfsEnabled: true
NovaNfsShare: '192.168.24.1:/export/nova'
NovaNfsOptions: 'rw,sync,context=system_u:object_r:nfs_t:s0'
I used the undercloud node as an NFS server for testing purposes. Iptables
is set accordingly. The /etc/exportfs on the NFS server is as follows:
/export/nova 192.168.24.0/24(rw,no_root_squash)
/export/glance 192.168.24.0/24(rw,no_root_squash)
/export/cinder 192.168.24.0/24(rw,no_root_squash)
All three folders are set to chmod 777. Nova and Glance work as expected.
Only Cinder remains problematic. I can try to upload volumes from
overcloud, but nothing would show up in the cinder folder. Also Horizon
gives errors like unable to retrieve volume and volume snapshots. Did I
miss something here? I do plan to use Ceph later, but I wish to use NFS for
now to test migration and failover. Any helps would be appreciated. Thank
you!
Best regards,
Cody
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Tzach Shefi
Senior Quality Engineer, RHCSA
Red Hat
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https://www.redhat.com>
tshefi(a)redaht.com M: +972-54-4701080 IM: tshefi
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