Mixing
How to convert a snapshot to a snapshot to an Image in Openstack?
It seems that snapshots and instances are very similar (e.g. https://serverfault.com/questions/527449/why-does-openstack-distinguish-images-from-snapshots).
However, I've been unable to share snapshots publicly globally (i.e. across all projects). Note, I'm a user of the OpenStack installation, not an administrator of the installation.
Assuming that Images don't suffer the same limitation of Snapshots, is there a procedure for convert a snapshot to an image? If not, maybe I should ask a separate question, but my cloud admin tells me it needs to be an image.
openstack openstack-nova
asked Nov 19 '18 at 21:29
bbarkerbbarker
1,64621526
add a comment |
It seems that snapshots and instances are very similar (e.g. https://serverfault.com/questions/527449/why-does-openstack-distinguish-images-from-snapshots).
However, I've been unable to share snapshots publicly globally (i.e. across all projects). Note, I'm a user of the OpenStack installation, not an administrator of the installation.
Assuming that Images don't suffer the same limitation of Snapshots, is there a procedure for convert a snapshot to an image? If not, maybe I should ask a separate question, but my cloud admin tells me it needs to be an image.
openstack openstack-nova
asked Nov 19 '18 at 21:29
bbarkerbbarker
1,64621526
add a comment |
It seems that snapshots and instances are very similar (e.g. https://serverfault.com/questions/527449/why-does-openstack-distinguish-images-from-snapshots).
However, I've been unable to share snapshots publicly globally (i.e. across all projects). Note, I'm a user of the OpenStack installation, not an administrator of the installation.
Assuming that Images don't suffer the same limitation of Snapshots, is there a procedure for convert a snapshot to an image? If not, maybe I should ask a separate question, but my cloud admin tells me it needs to be an image.
openstack openstack-nova
asked Nov 19 '18 at 21:29
bbarkerbbarker
1,64621526
It seems that snapshots and instances are very similar (e.g. https://serverfault.com/questions/527449/why-does-openstack-distinguish-images-from-snapshots).
However, I've been unable to share snapshots publicly globally (i.e. across all projects). Note, I'm a user of the OpenStack installation, not an administrator of the installation.
Assuming that Images don't suffer the same limitation of Snapshots, is there a procedure for convert a snapshot to an image? If not, maybe I should ask a separate question, but my cloud admin tells me it needs to be an image.
openstack openstack-nova
openstack openstack-nova
asked Nov 19 '18 at 21:29
bbarkerbbarker
1,64621526
asked Nov 19 '18 at 21:29
bbarkerbbarker
1,64621526
asked Nov 19 '18 at 21:29
bbarkerbbarker
1,64621526
asked Nov 19 '18 at 21:29
bbarkerbbarker
1,64621526
asked Nov 19 '18 at 21:29
bbarkerbbarker
1,64621526
1,64621526
add a comment |
add a comment |
2 Answers
2
active
oldest
votes
for download
glance-image download
answered Nov 21 '18 at 7:17
Eranachandran EEranachandran E
114
I didn't actually try this, but it is basically the same as what I did try, just using another tool that we've been using (the openstack python cli). Unfortunately, I don't think it would work for me, I kept getting errors with the analogous command because for some reason the snapshot was showing size 0 when I tried. I'll document in another answer.
– bbarker
Dec 10 '18 at 16:26
are you using which backend, did you booted instance with volume?
– Eranachandran E
Dec 26 '18 at 13:16
add a comment |
Initially I tried this:
openstack image save --file NixOS.qcow2 5426bbcf-06b3-42f3-b117-37395e7dde83
However, the reported size of NixOS.qcow2 was always 0 bytes. Not good. Well, the issue was apparently related to the fact that is is also what was reported in OpenStack and Horizon for the size of the Snapshot. So something weird was going on, but functionally, I could still use the snapshot to create instances without issue.
I then created a volume of a snapshot in horizon (when shut off, couldn't create a volume when shelved), then used this command to create an image from the newly created volume (NixSnapVol):
openstack image create --volume NixSnapVol NixSnapVol-img
Interestingly the reported size went from 41GB to 45GB, maybe that was part of the issue. Anyway, seems to work now, and bonus is that it is now RAW type instead of qcow2, so I don't need to do the conversion (our system largely benefits from using RAW as we have a ceph backend).
answered Dec 10 '18 at 16:32
bbarkerbbarker
1,64621526
add a comment |
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2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
for download
glance-image download
answered Nov 21 '18 at 7:17
Eranachandran EEranachandran E
114
I didn't actually try this, but it is basically the same as what I did try, just using another tool that we've been using (the openstack python cli). Unfortunately, I don't think it would work for me, I kept getting errors with the analogous command because for some reason the snapshot was showing size 0 when I tried. I'll document in another answer.
– bbarker
Dec 10 '18 at 16:26
are you using which backend, did you booted instance with volume?
– Eranachandran E
Dec 26 '18 at 13:16
add a comment |
for download
glance-image download
answered Nov 21 '18 at 7:17
Eranachandran EEranachandran E
114
I didn't actually try this, but it is basically the same as what I did try, just using another tool that we've been using (the openstack python cli). Unfortunately, I don't think it would work for me, I kept getting errors with the analogous command because for some reason the snapshot was showing size 0 when I tried. I'll document in another answer.
– bbarker
Dec 10 '18 at 16:26
are you using which backend, did you booted instance with volume?
– Eranachandran E
Dec 26 '18 at 13:16
add a comment |
for download
glance-image download
answered Nov 21 '18 at 7:17
Eranachandran EEranachandran E
114
for download
glance-image download
answered Nov 21 '18 at 7:17
Eranachandran EEranachandran E
114
edited Dec 22 '18 at 12:35
answered Nov 21 '18 at 7:17
Eranachandran EEranachandran E
114
answered Nov 21 '18 at 7:17
Eranachandran EEranachandran E
114
answered Nov 21 '18 at 7:17
Eranachandran EEranachandran E
114
114
I didn't actually try this, but it is basically the same as what I did try, just using another tool that we've been using (the openstack python cli). Unfortunately, I don't think it would work for me, I kept getting errors with the analogous command because for some reason the snapshot was showing size 0 when I tried. I'll document in another answer.
– bbarker
Dec 10 '18 at 16:26
are you using which backend, did you booted instance with volume?
– Eranachandran E
Dec 26 '18 at 13:16
add a comment |
I didn't actually try this, but it is basically the same as what I did try, just using another tool that we've been using (the openstack python cli). Unfortunately, I don't think it would work for me, I kept getting errors with the analogous command because for some reason the snapshot was showing size 0 when I tried. I'll document in another answer.
– bbarker
Dec 10 '18 at 16:26
are you using which backend, did you booted instance with volume?
– Eranachandran E
Dec 26 '18 at 13:16
I didn't actually try this, but it is basically the same as what I did try, just using another tool that we've been using (the openstack python cli). Unfortunately, I don't think it would work for me, I kept getting errors with the analogous command because for some reason the snapshot was showing size 0 when I tried. I'll document in another answer.
– bbarker
Dec 10 '18 at 16:26
I didn't actually try this, but it is basically the same as what I did try, just using another tool that we've been using (the openstack python cli). Unfortunately, I don't think it would work for me, I kept getting errors with the analogous command because for some reason the snapshot was showing size 0 when I tried. I'll document in another answer.
– bbarker
Dec 10 '18 at 16:26
are you using which backend, did you booted instance with volume?
– Eranachandran E
Dec 26 '18 at 13:16
are you using which backend, did you booted instance with volume?
– Eranachandran E
Dec 26 '18 at 13:16
add a comment |
Initially I tried this:
openstack image save --file NixOS.qcow2 5426bbcf-06b3-42f3-b117-37395e7dde83
However, the reported size of NixOS.qcow2 was always 0 bytes. Not good. Well, the issue was apparently related to the fact that is is also what was reported in OpenStack and Horizon for the size of the Snapshot. So something weird was going on, but functionally, I could still use the snapshot to create instances without issue.
I then created a volume of a snapshot in horizon (when shut off, couldn't create a volume when shelved), then used this command to create an image from the newly created volume (NixSnapVol):
openstack image create --volume NixSnapVol NixSnapVol-img
Interestingly the reported size went from 41GB to 45GB, maybe that was part of the issue. Anyway, seems to work now, and bonus is that it is now RAW type instead of qcow2, so I don't need to do the conversion (our system largely benefits from using RAW as we have a ceph backend).
answered Dec 10 '18 at 16:32
bbarkerbbarker
1,64621526
add a comment |
Initially I tried this:
openstack image save --file NixOS.qcow2 5426bbcf-06b3-42f3-b117-37395e7dde83
However, the reported size of NixOS.qcow2 was always 0 bytes. Not good. Well, the issue was apparently related to the fact that is is also what was reported in OpenStack and Horizon for the size of the Snapshot. So something weird was going on, but functionally, I could still use the snapshot to create instances without issue.
I then created a volume of a snapshot in horizon (when shut off, couldn't create a volume when shelved), then used this command to create an image from the newly created volume (NixSnapVol):
openstack image create --volume NixSnapVol NixSnapVol-img
Interestingly the reported size went from 41GB to 45GB, maybe that was part of the issue. Anyway, seems to work now, and bonus is that it is now RAW type instead of qcow2, so I don't need to do the conversion (our system largely benefits from using RAW as we have a ceph backend).
answered Dec 10 '18 at 16:32
bbarkerbbarker
1,64621526
add a comment |
Initially I tried this:
openstack image save --file NixOS.qcow2 5426bbcf-06b3-42f3-b117-37395e7dde83
However, the reported size of NixOS.qcow2 was always 0 bytes. Not good. Well, the issue was apparently related to the fact that is is also what was reported in OpenStack and Horizon for the size of the Snapshot. So something weird was going on, but functionally, I could still use the snapshot to create instances without issue.
I then created a volume of a snapshot in horizon (when shut off, couldn't create a volume when shelved), then used this command to create an image from the newly created volume (NixSnapVol):
openstack image create --volume NixSnapVol NixSnapVol-img
Interestingly the reported size went from 41GB to 45GB, maybe that was part of the issue. Anyway, seems to work now, and bonus is that it is now RAW type instead of qcow2, so I don't need to do the conversion (our system largely benefits from using RAW as we have a ceph backend).
answered Dec 10 '18 at 16:32
bbarkerbbarker
1,64621526
Initially I tried this:
openstack image save --file NixOS.qcow2 5426bbcf-06b3-42f3-b117-37395e7dde83
However, the reported size of NixOS.qcow2 was always 0 bytes. Not good. Well, the issue was apparently related to the fact that is is also what was reported in OpenStack and Horizon for the size of the Snapshot. So something weird was going on, but functionally, I could still use the snapshot to create instances without issue.
I then created a volume of a snapshot in horizon (when shut off, couldn't create a volume when shelved), then used this command to create an image from the newly created volume (NixSnapVol):
openstack image create --volume NixSnapVol NixSnapVol-img
Interestingly the reported size went from 41GB to 45GB, maybe that was part of the issue. Anyway, seems to work now, and bonus is that it is now RAW type instead of qcow2, so I don't need to do the conversion (our system largely benefits from using RAW as we have a ceph backend).
answered Dec 10 '18 at 16:32
bbarkerbbarker
1,64621526
answered Dec 10 '18 at 16:32
bbarkerbbarker
1,64621526
answered Dec 10 '18 at 16:32
bbarkerbbarker
1,64621526
answered Dec 10 '18 at 16:32
bbarkerbbarker
1,64621526
1,64621526
add a comment |
add a comment |
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