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Versions: 11
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Contents
module Fog
module Brightbox
module Compute
#
# This selects the preferred image to use based on a number of
# conditions
#
class ImageSelector
# Prepares a selector with the API output
#
# @param [Array<Hash>] images hash matching API output for {Fog::Compute::Brightbox#list_images}
#
def initialize(images)
@images = images
end
# Returns current identifier of the latest version of Ubuntu
#
# The order of preference is:
# * Only Official Brightbox images
# * Only Ubuntu images
# * Latest by name (alphanumeric sort)
# * Latest by creation date
#
# @return [String] if image matches containing the identifier
# @return [NilClass] if no image matches
#
def latest_ubuntu
@images.select do |img|
img["official"] == true &&
img["arch"] == "i686" &&
img["name"] =~ /ubuntu/i
end.sort do |a, b|
# Reverse sort so "raring" > "precise" and "13.10" > "13.04"
b["name"].downcase <=> a["name"].downcase
end.first["id"]
rescue StandardError
nil
end
# Returns current identifier of the smallest official image
#
# @return [String] if image matches containing the identifier
# @return [NilClass] if no image matches
#
def official_minimal
@images.select do |img|
img["official"] == true &&
img["virtual_size"] != 0
end.sort_by do |img|
img["disk_size"]
end.first["id"]
rescue StandardError
nil
end
end
end
end
end
Version data entries
11 entries across 9 versions & 2 rubygems