Class: Kontena::Cli::Apps::MonitorCommand

Inherits:
Kontena::Command
  • Object
show all
Includes:
Common, Common, GridOptions
Defined in:
lib/kontena/cli/apps/monitor_command.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from Common

#abort_on_validation_errors, #app_json, #create_yml, #current_dir, #display_notifications, #generate_services, #hint_on_validation_notifications, #prefixed_name, #project_name_from_yaml, #read_yaml, #require_config_file, #service_exists?, #service_prefix, #services_from_yaml, #set_env_variables, #token, #valid_addons

Instance Attribute Details

#services ⇒ Object (readonly)

Returns the value of attribute services.



14
15
16
 
# File 'lib/kontena/cli/apps/monitor_command.rb', line 14

def services
  @services
end

Instance Method Details

#clear_terminal ⇒ Object 



89
90
91
 
# File 'lib/kontena/cli/apps/monitor_command.rb', line 89

def clear_terminal
  print "\e[H\e[2J"
end

#color_for_service(service) ⇒ Object 



70
71
72
73
 
# File 'lib/kontena/cli/apps/monitor_command.rb', line 70

def color_for_service(service)
  color_maps[service] = colors.shift unless color_maps[service]
  color_maps[service].to_sym
end

#color_maps ⇒ Object 



75
76
77
 
# File 'lib/kontena/cli/apps/monitor_command.rb', line 75

def color_maps
  @color_maps ||= {}
end

#colors ⇒ Object 



79
80
81
82
83
84
85
86
87
 
# File 'lib/kontena/cli/apps/monitor_command.rb', line 79

def colors
  if(@colors.nil? || @colors.size == 0)
    @colors = %i(
      red green yellow blue magenta cyan bright_red bright_green
      bright_yellow bright_blue bright_magenta bright_cyan
    )
  end
  @colors
end

#execute ⇒ Object 



16
17
18
19
20
21
22
23
24
25
 
# File 'lib/kontena/cli/apps/monitor_command.rb', line 16

def execute
  require_config_file(filename)

  @services = services_from_yaml(filename, service_list, service_prefix, true)
  if services.size > 0
    show_monitor(services)
  elsif !service_list.empty?
    puts "No such service: #{service_list.join(', ')}".colorize(:red)
  end
end

#show_monitor(services) ⇒ Object 



27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
 
# File 'lib/kontena/cli/apps/monitor_command.rb', line 27

def show_monitor(services)
  require_api_url
  token = require_token
  loop do
    nodes = {}
    services.each do |name, data|
      service = prefixed_name(name)
      result = client(token).get("services/#{current_grid}/#{service}/containers") rescue nil
      if result
        services[name]['instances'] = result['containers'].size
        result['containers'].each do |container|
          container['service'] = name
          nodes[container['node']['name']] ||= []
          nodes[container['node']['name']] << container
        end
      end
    end
    clear_terminal
    puts "services:"
    services.each do |name, data|
      color = color_for_service(name)
      puts "  #{"■".colorize(color)} #{name} (#{data['instances']} instances)"
    end
    puts "nodes:"
    node_names = nodes.keys.sort
    node_names.each do |name|
      containers = nodes[name]
      puts "  #{name} (#{containers.size} instances)"
      print "  "
      containers.each do |container|
        icon = "■"
        if container['status'] != 'running'
          icon = "□"
        end
        color = color_for_service(container['service'])
        print icon.colorize(color)
      end
      puts ''
    end
    sleep 1
  end
end