Re: [Openstack-operators] Migrating glance images to a new backend

2017-03-28 Thread Fei Long Wang
Hi Massimo, Thanks for providing more information. As you can see from David's blog and the script (https://github.com/dmsimard/migrate-glance-backend). The most tricky part is how to keep current image id, otherwise, all the existing instances will fail to rebuild. The way I'm suggesting can

Re: [Openstack-operators] Migrating glance images to a new backend

2017-03-28 Thread Massimo Sgaravatto
First of all thanks for your help This is a private cloud which is right now using gluster as backend. Most of the images are private (i.e. usable only within the project), uploaded by the end-users. Most of these images were saved in qcow2 format ... The ceph cluster is still being

Re: [Openstack-operators] Migrating glance images to a new backend

2017-03-27 Thread Fei Long Wang
Hi Massimo, Though I don't have experience on the migration, but as the glance RBD driver maintainer and image service maintainer of our public cloud (Catalyst Cloud based in NZ), I'm happy to provide some information. Before I talk more, would you mind sharing some information of your

Re: [Openstack-operators] Migrating glance images to a new backend

2017-03-26 Thread David Moreau Simard
Oh, hey, that's my blog. Happy to answer questions as much as my memory allows.. I haven't revisited this particular topic, it was a one-time thing for me. I would certainly hope for there to be a better way by now, almost two years later! Curious to see if other operators have any insight to

[Openstack-operators] Migrating glance images to a new backend

2017-03-24 Thread Massimo Sgaravatto
Hi In our Mitaka cloud we are currently using Gluster as storage backend for Glance and Cinder. We are now starting the migration to ceph: the idea is then to dismiss gluster when we have done. I have a question concerning Glance. I have understood (or at least I hope so) how to add ceph as