718370f4c9
Allow plugin to take an etc_type keyword argument for using the TYPE_ETC ubid type, and remove the separate definitions in every model that uses the TYPE_ETC ubid type. This was the cleanest way to DRY things up. You cannot extend the models with a module to do this before including ResourceMethods, because then ResourceMethods::ClassMethods will override it, and you cannot extend the models with a module to do this after including ResourceMethods, because the inclusion will not work correctly due to the eager definition of @ubid_format. Best reviewed without whitespace differences.
54 lines
2.5 KiB
Ruby
54 lines
2.5 KiB
Ruby
# frozen_string_literal: true
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require_relative "../model"
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require_relative "../lib/system_parser"
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class StorageDevice < Sequel::Model
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many_to_one :vm_host
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plugin ResourceMethods, etc_type: true
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def migrate_device_name_to_device_id
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update(unix_device_list: unix_device_list.map { |device_name| StorageDevice.convert_device_name_to_device_id(vm_host.sshable, device_name) })
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end
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# We have both raided and non-raided servers, in non-raided servers, we can call blkid to get the uuid
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# but in the case of raided servers, all the underlying disk devices will be shown with the same uuid of the raid device
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# (/dev/md) so we end up with duplicate uuids for different ssd or nvme disks. so we won't use /dev/disk/by-uuid
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#
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# to handle this, we would use /dev/disk/by-id instead.
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# For SSD disks, there is a unique identifier which starts with wwn (World Wide Name) which is claimed to be unique across the world
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# For NVMe disks, there is a unique identidier which starts with nvme-eui and it is also claimed to be unique
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#
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# All of our disks are either SSD or NVMe, so the assumptions that we can rely on these two prefixes is reliable
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def self.convert_device_name_to_device_id(sshable, device_name)
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if device_name.start_with?("sd")
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sshable.cmd("ls -l /dev/disk/by-id/ | grep '#{device_name}$' | grep 'wwn-' | sed -E 's/.*(wwn[^ ]*).*/\\1/'").strip
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elsif device_name.start_with?("nvme")
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sshable.cmd("ls -l /dev/disk/by-id/ | grep '#{device_name}$' | grep 'nvme-eui' | sed -E 's/.*(nvme-eui[^ ]*).*/\\1/'").strip
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else
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device_name
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end
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end
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end
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# Table: storage_device
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# Columns:
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# id | uuid | PRIMARY KEY
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# name | text | NOT NULL
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# total_storage_gib | integer | NOT NULL
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# available_storage_gib | integer | NOT NULL
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# enabled | boolean | NOT NULL DEFAULT true
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# vm_host_id | uuid |
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# unix_device_list | text[] |
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# Indexes:
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# storage_device_pkey | PRIMARY KEY btree (id)
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# storage_device_vm_host_id_name_key | UNIQUE btree (vm_host_id, name)
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# Check constraints:
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# available_storage_gib_less_than_or_equal_to_total | (available_storage_gib <= total_storage_gib)
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# available_storage_gib_non_negative | (available_storage_gib >= 0)
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# Foreign key constraints:
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# storage_device_vm_host_id_fkey | (vm_host_id) REFERENCES vm_host(id)
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# Referenced By:
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# vm_storage_volume | vm_storage_volume_storage_device_id_fkey | (storage_device_id) REFERENCES storage_device(id)
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