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102 lines
2.8 KiB
Ruby
102 lines
2.8 KiB
Ruby
require 'fog/core/model'
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module Fog
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module HP
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class BlockStorage
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class Volume < Fog::Model
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identity :id
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attribute :name, :aliases => 'displayName'
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attribute :description, :aliases => 'displayDescription'
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attribute :size
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attribute :status
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attribute :type, :aliases => 'volumeType'
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attribute :created_at, :aliases => 'createdAt'
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attribute :availability_zone, :aliases => 'availabilityZone'
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attribute :snapshot_id, :aliases => 'snapshotId'
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attribute :source_image_id, :aliases => 'sourceImageRef' # only for bootable volumes
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attribute :attachments
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attribute :metadata
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attr_reader :server_id
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attr_reader :device
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def initialize(attributes = {})
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# assign these attributes first to prevent race condition with new_record?
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self.image_id = attributes.delete(:image_id)
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super
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end
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def device
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attachments[0]['device'] if has_attachments?
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end
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def server_id
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attachments[0]['serverId'] if has_attachments?
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end
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# used for creating bootable volumes
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def image_id=(new_image_id)
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@image_id = new_image_id
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end
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# a volume can be attached to only one server at a time
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def has_attachments?
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!(attachments.nil? || attachments.empty? || attachments[0].empty?)
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end
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def in_use?
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self.status == 'in-use'
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end
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def ready?
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self.status == 'available'
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end
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# volume can be attached to only one server at a time
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def attach(new_server_id, device)
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requires :id
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unless in_use?
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data = service.compute.attach_volume(new_server_id, id, device)
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merge_attributes(:attachments => attachments << data.body['volumeAttachment'])
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true
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else
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false
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end
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end
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def detach
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requires :id
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if has_attachments?
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service.compute.detach_volume(server_id, id)
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end
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true
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end
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def destroy
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requires :id
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service.delete_volume(id)
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true
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end
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def save
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raise Fog::Errors::Error.new('Resaving an existing object may create a duplicate') if persisted?
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requires :name, :size
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options = {
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'metadata' => metadata,
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'snapshot_id' => snapshot_id,
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'imageRef' => @image_id
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}
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options = options.reject {|key, value| value.nil?}
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data = service.create_volume(name, description, size, options)
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merge_attributes(data.body['volume'])
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true
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end
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end
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end
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end
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end
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