Class: AwsUtils::Ec2ListMachines

Inherits:
Object
  • Object
show all
Defined in:
lib/awsutils/ec2listmachines.rb

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Ec2ListMachines

Returns a new instance of Ec2ListMachines.



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# File 'lib/awsutils/ec2listmachines.rb', line 400

def initialize
  list_instances(parse_opts)
rescue Interrupt
  puts 'Interrupted by user (SIGINT, Ctrl+C, etc.)'
end

Instance Method Details

#connect ⇒ Object 



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# File 'lib/awsutils/ec2listmachines.rb', line 24

def connect
  @connect = Fog::Compute.new(provider: 'AWS')
  if $DEBUG
    puts 'Inspect connection result:'
    puts connect.inspect
  end

  @connect
end

#get_flavor_color(flavor) ⇒ Object 



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# File 'lib/awsutils/ec2listmachines.rb', line 197

def get_flavor_color(flavor)
  case flavor
  when 't1.micro'
    '1;33'
  when 'm1.large'
    '0;33'
  when 'm1.xlarge'
    '0;34'
  when 'm2.2xlarge'
    '0;35'
  when 'm2.4xlarge'
    '0;31'
  when 'm2.xlarge'
    '0;36'
  else
    '0'
  end
end

#get_longest_server_name(servers_sorted) ⇒ Object 



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# File 'lib/awsutils/ec2listmachines.rb', line 128

def get_longest_server_name(servers_sorted)
  server_names = []
  servers_sorted.each do |server|
    server_names << server[:name]
  end

  server_names.longest.length + 1
end

#get_servers(opts) ⇒ Object 



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# File 'lib/awsutils/ec2listmachines.rb', line 34

def get_servers(opts)
  static_ips = []
  connect.addresses.all.each do |eip|
    static_ips << eip.public_ip
  end

  group_map = {}
  connect.security_groups.map { |g| group_map[g.name] = g.group_id }

  if opts[:search]
    servers = connect.servers.select do |s|
      s.tags['Name'] =~ /.*#{opts[:search]}.*/
    end
  else
    servers = connect.servers
  end

  servers_a = []

  servers.each do |s|
    if (opts[:state].nil? || (s.state == opts[:state])) &&
      (
        (opts[:terminated] == true) ||
        (s.state != 'terminated') ||
        (opts[:state] == 'terminated')
      ) &&
      (opts[:flavor].nil? || (s.flavor_id == opts[:flavor])) &&
      (opts[:role].nil? || (s.tags['Role'] == opts[:role])) &&
      (opts[:zone].nil? || (s.availability_zone.to_s == opts[:zone]))

      if s.public_ip_address.nil?
        pub_ip = ''
      else
        pub_ip = s.public_ip_address

        static_ip = static_ips.include?(pub_ip) ? '(S)' : '(D)'
      end

      role = s.tags['Role'] ? '-' : s.tags['Role']

      if s.groups.first =~ /-/
        group_to_insert = "#{group_map[s.groups.first]}/#{s.groups.first}"
      else
        group_to_insert = s.groups.first
      end

      created = s.tags['created_on'] ||= s.created_at

      servers_a << {
        name: s.tags['Name'].to_s,
        date: created.to_s,
        role: role.to_s,
        az: s.availability_zone.to_s,
        id: s.id,
        group: group_to_insert,
        pub_ip: pub_ip,
        static_ip: static_ip,
        flavor: s.flavor_id,
        state: s.state
      }

    end
  end

  servers_a
end

#get_state_color(state) ⇒ Object 



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# File 'lib/awsutils/ec2listmachines.rb', line 216

def get_state_color(state)
  case state
  when 'running'
    '1;32'
  when 'stopped'
    '1;31'
  when 'starting'
    '5;32'
  when 'stopping'
    '5;31'
  else
    '0'
  end
end

#list_instances(opts) ⇒ Object 



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# File 'lib/awsutils/ec2listmachines.rb', line 366

def list_instances(opts)
  servers = get_servers(opts)
  servers_sorted = sort_servers(servers, opts[:sort])
  longest_server_name = get_longest_server_name(servers_sorted)
  print_headers(opts[:csv], servers_sorted, longest_server_name, opts[:dates])
  print_machine_list(
    servers_sorted,
    opts[:nocolor],
    opts[:csv],
    longest_server_name,
    opts[:dates]
  )

  print_counts(servers_sorted, opts[:csv])
end

#parse_opts ⇒ Object 



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# File 'lib/awsutils/ec2listmachines.rb', line 382

def parse_opts
  opts = Trollop.options do
    opt :sort, 'Sort order', short: 's', type: String
    opt :state, 'State', short: 'S', type: String
    opt :flavor, 'Flavor', short: 'F', type: String
    opt :role, 'Role', short: 'r', type: String
    opt :zone, 'Availability Zone', short: 'Z', type: String
    opt :csv, 'Output in CSV Format', short: 'C', default: false
    opt :dates, 'Show creation timestamp', short: 'd', default: false
    opt :terminated, 'Show terminated instances', short: 't', default: false
    opt :nocolor, 'No color', short: 'c'
  end

  opts[:search] = ARGV[0] unless ARGV[0].empty?

  opts
end

#print_counts(servers_sorted, opts_csv) ⇒ Object 



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# File 'lib/awsutils/ec2listmachines.rb', line 333

def print_counts(servers_sorted, opts_csv)
  flavor_data = {}
  connect.flavors.each do |f|
    flavor_data[f.id] = {
      'cores' => f.cores,
      'disk' => f.disk,
      'ram' => f.ram
    }
  end
  total_cores = 0
  total_disk = 0.0
  total_ram = 0.0

  servers_sorted.each do |s|
    total_cores += flavor_data[s[:flavor]]['cores']
    total_disk += flavor_data[s[:flavor]]['disk'].to_f
    total_ram += flavor_data[s[:flavor]]['ram'].to_f
  end

  if opts_csv
    puts "total_instances,#{servers_sorted.count}"
    puts "total_cores,#{total_cores}"
    puts "total_disk,#{total_disk}"
    puts "total_ram,#{total_ram}"
  else
    puts "\nTotals"
    puts "\tInstances: #{servers_sorted.count}"
    puts "\tCores: #{total_cores}"
    printf("\tInstance storage: %.2f TB\n", total_disk / 1024)
    printf("\tRAM: %.2f GB\n", total_ram / 1024)
  end
end

#print_headers(csv_opt, servers_sorted, longest_server_name, show_dates) ⇒ Object 



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# File 'lib/awsutils/ec2listmachines.rb', line 137

def print_headers(csv_opt, servers_sorted, longest_server_name, show_dates)
  if csv_opt == true
    if show_dates
      printf(
        "%s,%s,%s,%s,%s,%s,%s,%s,%s\n",
        'Name',
        'Created',
        'Role',
        'AZ',
        'ID',
        'Sec Group',
        'Public IP,(S/D)',
        'Flavor',
        'State'
      )
    else
      printf(
        "%s,%s,%s,%s,%s,%s,%s,%s\n",
        'Name',
        'Role',
        'AZ',
        'ID',
        'Sec Group',
        'Public IP,(S/D)',
        'Flavor',
        'State'
      )
    end
  else
    if show_dates
      printf(
        "\033[0;4m%-#{longest_server_name}s %-30s %-16s %-10s %-10s " \
          "%-24s %-19s %-10s %-7s\033[0m\n",
        'Name',
        'Created',
        'Role',
        'AZ',
        'ID',
        'Sec Group',
        'Public IP (S/D)',
        'Flavor',
        'State'
      )
    else
      printf(
        "\033[0;4m%-#{longest_server_name}s %-16s %-10s %-10s %-24s " \
          "%-19s %-10s %-7s\033[0m\n",
        'Name',
        'Role',
        'AZ',
        'ID',
        'Sec Group',
        'Public IP (S/D)',
        'Flavor',
        'State'
      )
    end
  end
end

#print_machine_list(servers_sorted, nocolor_opt, csv_opt, longest_server_name, show_dates) ⇒ Object 



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# File 'lib/awsutils/ec2listmachines.rb', line 231

def print_machine_list(servers_sorted, nocolor_opt, csv_opt, longest_server_name, show_dates)
  servers_sorted.each do |server|
    name =      server[:name]
    date =      server[:date]
    role =      server[:role]
    az =        server[:az]
    id =        server[:id]
    group =     server[:group]
    ip =        server[:pub_ip]
    static_ip = server[:static_ip]
    flavor =    server[:flavor]
    state =     server[:state]
    fcolor =    get_flavor_color(flavor)
    scolor =    get_state_color(state)

    if (nocolor_opt == false) && (csv_opt == false)
      if show_dates
        printf(
          "\033[1m%-#{longest_server_name}s\033[0m %-30s %-16s %-10s %-10s " \
            "%-24s %-19s \033[#{fcolor}m%-11s\033[#{scolor}m%-7s\033[0m\n",
          name,
          date,
          role,
          az,
          id,
          group,
          "#{ip} #{static_ip}",
          flavor,
          state
        )
      else
        printf(
          "\033[1m%-#{longest_server_name}s\033[0m %-16s %-10s %-10s " \
            "%-24s %-19s \033[#{fcolor}m%-11s\033[#{scolor}m%-7s\033[0m\n",
          name,
          role,
          az,
          id,
          group,
          "#{ip} #{static_ip}",
          flavor,
          state
        )
      end
    elsif csv_opt == true
      if show_dates
        printf(
          "%s,%s,%s,%s,%s,%s,%s,%s,%s\n",
          name,
          date,
          role,
          az,
          id,
          group,
          "#{ip},#{static_ip}",
          flavor,
          state
        )
      else
        printf(
          "%s,%s,%s,%s,%s,%s,%s,%s\n",
          name,
          role,
          az,
          id,
          group,
          "#{ip},#{static_ip}",
          flavor,
          state
        )
      end
    else
      if show_dates
        printf(
          "%-#{longest_server_name}s %-20s %-16s %-10s %-10s %-20s %-19s %-11s%-7s\n",
          name,
          date,
          role,
          az,
          id,
          group,
          "#{ip} #{static_ip}",
          flavor,
          state
        )
      else
        printf(
          "%-#{longest_server_name}s %-16s %-10s %-10s %-20s %-19s %-11s%-7s\n",
          name,
          role,
          az,
          id,
          group,
          "#{ip} #{static_ip}",
          flavor,
          state
        )
      end
    end
  end
end

#sort_servers(servers_a, sort_col) ⇒ Object 



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# File 'lib/awsutils/ec2listmachines.rb', line 101

def sort_servers(servers_a, sort_col)
  case sort_col
  when 'role'
    servers_a.sort_by { |a| a[:role] }
  when 'az'
    servers_a.sort_by { |a| a[:az] }
  when 'name'
    servers_a.sort_by { |a| a[:name] }
  when 'id'
    servers_a.sort_by { |a| a[:id] }
  when 'group'
    servers_a.sort_by { |a| a[:group] }
  when 'flavor'
    servers_a.sort_by { |a| a[:flavor] }
  when 'state'
    servers_a.sort_by { |a| a[:state] }
  when 'ip'
    servers_a.sort_by { |a| a[:pub_ip] }
  when 'static'
    servers_a.sort_by { |a| a[:static_ip] }
  when 'date'
    servers_a.sort_by { |a| a[:date] }
  else
    servers_a.sort_by { |a| a[:name] }
  end
end