Class: Commands::ListInstances

Inherits:
Object
  • Object
show all
Defined in:
lib/commands/list_instances.rb

Instance Method Summary collapse

Instance Method Details

#options ⇒ Object

holds the options that were passed you can set any initial defaults here



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# File 'lib/commands/list_instances.rb', line 8

def options
  @options ||= {
  }
end

#register(opts, global_options) ⇒ Object 



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# File 'lib/commands/list_instances.rb', line 20

def register(opts, global_options)
  opts.banner = "Usage: list [options]"
  opts.description = "List the server instances"

  opts.on('-r', "--role role", MetaOptions.roles, "Role to look for.") do |v|
    options[:role] = v
  end

  opts.on('-g', "--group deploy_group", "Required: Group to look for.") do |v|
    options[:group] = v
  end

end

#required_options ⇒ Object

required options



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# File 'lib/commands/list_instances.rb', line 14

def required_options
  @required_options ||= Set.new [
      :group
  ]
end

#run(global_options, amazon) ⇒ Object 



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# File 'lib/commands/list_instances.rb', line 35

def run(global_options, amazon)
  ec2 = amazon.ec2

  instances = amazon.find_and_sort_named_instances(options[:group], options[:role])

  first = true
  instances.each do |instance|
    if first
      s = sprintf("%-40s%-14s%-40s","Name", "Instance", "Public Host")
      puts s
      first = false
    end
    name = instance[:Name]
    resource_id = instance[:resource_id]
    public_host = instance[:public_hostname]
    s = sprintf("%-40s%-14s%-40s",name, resource_id, public_host)
    puts s
  end

end