Class: PortAuthority::Tools::ServiceList

Inherits:
PortAuthority::Tool show all
Defined in:
lib/port-authority/tools/service_list.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods inherited from PortAuthority::Tool

#initialize

Constructor Details

This class inherits a constructor from PortAuthority::Tool

Instance Attribute Details

#etcd ⇒ Object (readonly)

Returns the value of attribute etcd.



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# File 'lib/port-authority/tools/service_list.rb', line 13

def etcd
  @etcd
end

Instance Method Details

#optparse ⇒ Object 



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# File 'lib/port-authority/tools/service_list.rb', line 15

def optparse
  @options = Hash.new
  @options[:url] = ENV['ETCDCTL_ENDPOINT']
  @options[:url] ||= "http://127.0.0.1:2379"
  @options[:output_yaml] = false
  @options[:output_json] = false
  @options[:ip_only] = false
  @options[:ports] = false
  @options[:service_filter] = '.*'

  OptionParser.new do |opts|
    opts.banner = "Lists\n\nUsage: #{$0} [OPTIONS] NETWORK_NAME"
    opts.separator ""
    opts.separator "Connection options:"
    opts.on("-u", "--url URL", "URL endpoint of the ETCD service (ETCDCTL_ENDPOINT envvar also applies) [DEFAULT: http://127.0.0.1:2379]") do |param|
      @options[:url] = param
    end

    opts.separator ""
    opts.separator "Filter options:"
    opts.on("-s SERVICE_NAME", "--service-filter SERVICE_NAME", String, "List only services by name") do |param|
      @options[:service_filter] = param
    end

    opts.separator ""
    opts.separator "Output options:"
    opts.on("-i", "--ips", "List only IPs (text mode)") do
      @options[:ip_only] = true
    end
    opts.on("-p", "--ports", "List exposed ports (text mode)") do
      @options[:ports] = true
    end
    opts.on("-y", "--yaml", "Output the data as YAML") do
      @options[:output_yaml] = true
    end
    opts.on("-j", "--json", "Output the data as JSON") do
      @options[:output_json] = true
    end

    opts.separator ""
    opts.separator "Common options:"
    opts.on_tail("-h", "--help", "show usage") do |param|
      puts opts
      exit! 0
    end
  end.parse!
end

#run ⇒ Object 



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# File 'lib/port-authority/tools/service_list.rb', line 63

def run
  unless @ARGS[0]
    $stderr.puts 'Missing NETWORK_NAME!'
    exit 1
  end

  @etcd = PortAuthority::Etcd.shell_cluster_connect(@options[:url])

  services = @etcd.swarm_list_services(@ARGS[0], @options[:service_filter])

  if @options[:output_yaml]
    puts services.to_yaml
  elsif @options[:output_json]
    puts services.to_json
  else
    if @options[:ip_only]
      services.each { |_, params| puts params['ip'] }
    elsif @options[:ports]
      services.each do |name, params|
        params['ports'].each do |port|
          puts "#{name} #{params['ip']}:#{port}"
        end
      end
    else
      services.each { |name, params| puts "#{name} #{params['ip']}" }
    end
  end
end