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Versions: 23
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Contents
# frozen_string_literal: true
module Facter
module Resolvers
class Gce < BaseResolver
init_resolver
METADATA_URL = 'http://metadata.google.internal/computeMetadata/v1/?recursive=true&alt=json'
HEADERS = { "Metadata-Flavor": 'Google', "Accept": 'application/json' }.freeze
class << self
private
def post_resolve(fact_name, _options)
log.debug('reading Gce metadata')
@fact_list.fetch(fact_name) { read_facts(fact_name) }
end
def read_facts(fact_name)
@fact_list[:metadata] = query_for_metadata
@fact_list[fact_name]
end
def query_for_metadata
gce_data = extract_to_hash(Facter::Util::Resolvers::Http.get_request(METADATA_URL, HEADERS))
parse_instance(gce_data)
gce_data.empty? ? nil : gce_data
end
def extract_to_hash(metadata)
JSON.parse(metadata)
rescue JSON::ParserError => e
log.debug("Trying to parse result but got: #{e.message}")
{}
end
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
end
end
end
end
Version data entries
23 entries across 23 versions & 1 rubygems