feat: [CDE-321]: Storage for CDE

[vikyathharekal]

Refer https://harness.atlassian.net/wiki/spaces/CDE/pages/22007742538/Block+storage+for+VM+created+in+bare-metal+machines+using+Ceph#Start-Gitspace

Init

1. Added scripts for provision, detach, and delete of storage.
2. Adding StorageIdentifier in init task which is in the format /
3. Adding nomad task to create ceph storage script
4. CephPoolIdentifier and RBDIdentifier are extracted from the StorageIdentifier
5. Size for the RBD is taken from resource.DiskSize
6. Updated ignite_run to mount the above mapped volume from bare metal machine to the VM using --volumes
7. instance_storage_identifier is stored in DB for it to be used in cleanup task
8. Added migration to add the above column
9. Updated the init task cleanup to remove ceph storage script

Cleanup

1. CleanupType (DETACH, DELETE) added. Difference is in delete, we would also delete the RBD and the data will be gone. This will be used when gitspace is deleted
2. Added nomad tasks to copy the script and delete at the end
3. storageIdentifier is picked up from the instance in DB and ceph script is updated as done in init task above

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[vistaarjuneja]

@vikyathharekal how do we send the storage identifier in the cleanup request?

[vikyathharekal]

@vikyathharekal how do we send the storage identifier in the cleanup request?

Discussed offline - storage identifier is stored in the instance record as of now