class Facter::Resolvers::Gce

Constants

HEADERS
METADATA_URL

Private Class Methods

extract_to_hash(metadata) click to toggle source
# File lib/facter/resolvers/gce.rb, line 29
def extract_to_hash(metadata)
  JSON.parse(metadata)
rescue JSON::ParserError => e
  log.debug("Trying to parse result but got: #{e.message}")
  {}
end
parse_instance(gce_data) click to toggle source
# File lib/facter/resolvers/gce.rb, line 36
def parse_instance(gce_data)
  instance_data = gce_data['instance']
  return if instance_data.nil? || instance_data.empty?

  %w[image machineType zone].each do |key|
    instance_data[key] = instance_data[key].split('/').last if instance_data[key]
  end

  network = instance_data.dig('networkInterfaces', 0, 'network')
  instance_data['networkInterfaces'][0]['network'] = network.split('/').last unless network.nil?

  gce_data['instance'] = instance_data
end
post_resolve(fact_name) click to toggle source
# File lib/facter/resolvers/gce.rb, line 12
def post_resolve(fact_name)
  log.debug('reading Gce metadata')
  @fact_list.fetch(fact_name) { read_facts(fact_name) }
end
query_for_metadata() click to toggle source
# File lib/facter/resolvers/gce.rb, line 22
def query_for_metadata
  gce_data = extract_to_hash(Utils::Http.get_request(METADATA_URL, HEADERS))
  parse_instance(gce_data)

  gce_data.empty? ? nil : gce_data
end
read_facts(fact_name) click to toggle source
# File lib/facter/resolvers/gce.rb, line 17
def read_facts(fact_name)
  @fact_list[:metadata] = query_for_metadata
  @fact_list[fact_name]
end