lib/fog/azurerm/requests/storage/create_disk.rb
module Fog
module Storage
class AzureRM
# This class provides the actual implementation for service calls.
class Real
# Create a disk in Azure storage.
#
# @param disk_name [String] Name of disk
# @param disk_size_in_gb [Integer] Disk size in GiB. Value range: [1, 1023]
# @param options [Hash]
# @option options [String] container_name Sets name of the container which contains the disk. Default is 'vhds'.
#
# @return [Boolean]
#
def create_disk(disk_name, disk_size_in_gb, options = {})
msg = "Creating disk(#{disk_name}, #{disk_size_in_gb}). options: #{options}"
Fog::Logger.debug msg
raise ArgumentError, "disk_size_in_gb #{disk_size_in_gb} must be an integer" unless disk_size_in_gb.is_a?(Integer)
raise ArgumentError, "Azure minimum disk size is 1 GiB: #{disk_size_in_gb}" if disk_size_in_gb < 1
raise ArgumentError, "Azure maximum disk size is 1023 GiB: #{disk_size_in_gb}" if disk_size_in_gb > 1023
container_name = options.delete(:container_name)
container_name = 'vhds' if container_name.nil?
blob_name = "#{disk_name}.vhd"
vhd_size = disk_size_in_gb * 1024 * 1024 * 1024
blob_size = vhd_size + 512
opts = {
type: :fixed,
name: '/tmp/footer.vhd', # Only used to initialize vhd, no local file is generated.
size: disk_size_in_gb
}
vhd_footer = Vhd::Library.new(opts).footer.values.join
begin
create_page_blob(container_name, blob_name, blob_size, options)
put_blob_pages(container_name, blob_name, vhd_size, blob_size - 1, vhd_footer, options)
rescue
begin
delete_blob(container_name, blob_name)
rescue => ex
Fog::Logger.debug "Cannot delete the blob: #{container_name}/#{blob_name} after create_disk failed. #{ex.inspect}"
end
raise
end
Fog::Logger.debug "Created a disk #{disk_name} successfully."
true
end
end
# This class provides the mock implementation for unit tests.
class Mock
def create_disk(*)
Fog::Logger.debug 'Disk created successfully.'
true
end
end
end
end
end