Module: EsFacts

Defined in:
lib/facter/es_facts.rb

Class Method Summary collapse

Class Method Details

.add_fact(prefix, key, value) ⇒ Object 



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# File 'lib/facter/es_facts.rb', line 7

def self.add_fact(prefix, key, value)
  key = "#{prefix}_#{key}".to_sym
  ::Facter.add(key) do
    setcode { value }
  end
end

.run ⇒ Object 



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# File 'lib/facter/es_facts.rb', line 14

def self.run

  dir_prefix = '/etc/elasticsearch'
  ports = []

  # only when the directory exists we need to process the stuff
  if File.directory?(dir_prefix)

    Dir.foreach(dir_prefix) do |dir|
      next if dir == '.'

      if File.exists?("#{dir_prefix}/#{dir}/elasticsearch.yml")
        config_data = YAML.load_file("#{dir_prefix}/#{dir}/elasticsearch.yml")

        if not config_data['http.enabled'].nil? and \
            config_data['http.enabled'] == 'false'
          next
        elsif not config_data['http.port'].nil?
          port = config_data['http.port']
        else
          port = '9200'
        end

        ports << port
      end
    end

    begin
      if ports.count > 0

        add_fact('elasticsearch', 'ports', ports.join(",") )
        ports.each do |port|

          key_prefix = "elasticsearch_#{port}"

          uri = URI("http://localhost:#{port}")
          http = Net::HTTP.new(uri.host, uri.port)
          http.read_timeout = 10
          response = http.get("/")
          json_data = JSON.parse(response.body)
          next if json_data['status'] && json_data['status'] != 200

          add_fact(key_prefix, 'name', json_data['name'])
          add_fact(key_prefix, 'version', json_data['version']['number'])

          uri2 = URI("http://localhost:#{port}/_nodes/#{json_data['name']}")
          http2 = Net::HTTP.new(uri2.host, uri2.port)
          http2.read_timeout = 10
          response2 = http2.get(uri2.path)
          json_data_node = JSON.parse(response2.body)

          add_fact(key_prefix, 'cluster_name', json_data_node['cluster_name'])
          node_data = json_data_node['nodes'].first

          add_fact(key_prefix, 'node_id', node_data[0])

          nodes_data = json_data_node['nodes'][node_data[0]]

          process = nodes_data['process']
          add_fact(key_prefix, 'mlockall', process['mlockall'])

          plugins = nodes_data['plugins']

          plugin_names = []
          plugins.each do |plugin|
            plugin_names << plugin['name']

           plugin.each do |key, value|
              prefix = "#{key_prefix}_plugin_#{plugin['name']}"
              add_fact(prefix, key, value) unless key == 'name'
            end
          end
          add_fact(key_prefix, 'plugins', plugin_names.join(","))

        end

      end
    rescue
    end

  end

end