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OpenStack Block Storage - cinder

For Cinder, we will have to enable additional servcies and re-build our openstack enviornment.

  1. Delete any running VMs (they need to go away to allow us to re-create the containers)
  2. We will also lose our image and networks, so the network and image scripts can re-create them quickly.
echo 'enable_cinder: "yes"' >> /etc/kolla/globals.yml
echo 'enable_swift: "yes"' >> /etc/kolla/globals.yml
echo 'enable_manila: "yes"' >> /etc/kolla/globals.yml

for n in `docker ps -qa`; do docker stop $n ; docker rm $n; done
kolla-ansible deploy

Once that's done, we can start creating Volumes, though it's possible you did this via the earlier Nova extra Credit.

  • create a volume and associate it with a running VM
  • log in to the VM, and create a file system on it:
mkfs.ext4 /dev/vdb
mount /dev/vdb /mnt
touch /mnt/file_to_prove_that_our_disk_is_the_same_one_we_initially_created
  • create a backup of this volume, and once complete
  • remove the file
  • detach the volume restore from backup
  • validate that the file is back

Extra Credit

  • create a second project
  • transfer the volume from your project to the other project and assiciate it with a vm in that project (create a network, VM, etc.)