Class: OctofactsUpdater::Service::ENC

Inherits:
Object
  • Object
show all
Defined in:
lib/octofacts_updater/service/enc.rb

Class Method Summary collapse

Class Method Details

.run_enc(hostname, config) ⇒ Object

Execute the external node classifier script. This expects the value of “path” to be set in the configuration.

hostname - A String with the FQDN of the host. config - A Hash with configuration data.

Returns a Hash consisting of the parsed output of the ENC.



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# File 'lib/octofacts_updater/service/enc.rb', line 18

def self.run_enc(hostname, config)
  unless config["enc"].is_a?(Hash)
    raise ArgumentError, "The ENC configuration must be defined"
  end

  unless config["enc"]["path"].is_a?(String)
    raise ArgumentError, "The ENC path must be defined"
  end

  unless File.file?(config["enc"]["path"])
    raise Errno::ENOENT, "The ENC script could not be found at #{config['enc']['path'].inspect}"
  end

  command = [config["enc"]["path"], hostname].map { |x| Shellwords.escape(x) }.join(" ")
  stdout, stderr, exitstatus = Open3.capture3(command)
  unless exitstatus.exitstatus == 0
    output = { "stdout" => stdout, "stderr" => stderr, "exitstatus" => exitstatus.exitstatus }
    raise "Error executing #{command.inspect}: #{output.to_yaml}"
  end

  YAML.load(stdout)
end