Files
ubicloud/rhizome/host/lib/storage_path.rb
Daniel Farina 46e2647d69 Add rhizome multi-device storage abstractions
Managing multiple storage devices per VM indicates makes the old
one-to-one assumptions of the code in `vm_path.rb` obsolete.  This
patch introduces a similar `storage_path.rb` that is capable of
computing paths for multiple storage devices.

With the exception of the storage-key-tool interface change -- largely
harmless as the key tool is not run automatically -- these rhizome
changes are thought to be backwards compatible, and can be deployed
first.

Hadi wrote the code, but I am taking responsibility for breaking it up
and deploying it.

Co-authored-by: Hadi Moshayedi <hadi@ubicloud.com>
2024-01-24 09:19:33 -08:00

39 lines
839 B
Ruby

# frozen_string_literal: true
DEFAULT_STORAGE_DEVICE = "DEFAULT"
class StoragePath
def initialize(vm_name, device, disk_index)
@vm_name = vm_name
@device = device
@disk_index = disk_index
end
def device_path
@device_path ||=
(@device == DEFAULT_STORAGE_DEVICE) ?
File.join("", "var", "storage") :
File.join("", "var", "storage", "devices", @device)
end
def storage_root
@storage_root ||= File.join(device_path, @vm_name)
end
def storage_dir
@storage_dir ||= File.join(storage_root, @disk_index.to_s)
end
def disk_file
@disk_file ||= File.join(storage_dir, "disk.raw")
end
def data_encryption_key
@dek_path ||= File.join(storage_dir, "data_encryption_key.json")
end
def vhost_sock
@vhost_sock ||= File.join(storage_dir, "vhost.sock")
end
end