Class: Provisioner::CLI

Inherits:
Object
  • Object
show all
Defined in:
lib/provisioner/cli.rb

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(args) ⇒ CLI

Returns a new instance of CLI.



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# File 'lib/provisioner/cli.rb', line 57

def initialize( args )
  @args = args
end

Class Method Details

.defaults ⇒ Object 



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# File 'lib/provisioner/cli.rb', line 9

def self.defaults
  {
    :debug       => false,
    :log_level   => 5,
    :memory      => 4096,
    :num_cores   => 2,
    :num_servers => 1,
    :platform    => "production",
    :ssh_config  => true,         # if not specified, use system defaults
  }.freeze
end

.process(options = {}) ⇒ Object 



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# File 'lib/provisioner/cli.rb', line 21

def self.process(options = {})
  # The template must specify a zone so we know where to look in the
  # organisation config
  begin
    zone = options[:machine_metadata].fetch(:zone)
  rescue KeyError
    raise ConfigurationError, "The machine configuration doesn't specify " +
      "a zone (Maybe you've put machine metadata and org config in the wrong order?)"
  end

  # Internal defaults
  res = self.defaults.dup
  # vCloud config defaults
  org_config = options.delete(:org_config)
  res.merge!(org_config.fetch(:default, {}))
  # vCloud zone defaults
  res.merge!(org_config.fetch(zone.to_sym, {}))
  # Machine metadata options
  res.merge!(options.delete(:machine_metadata))
  # Command line options
  res.merge!(options)

  unless res.include? :catalog_id
    begin
      template_name = res.fetch(:template_name)
      catalog_id = res.fetch(:catalog_items).fetch(template_name.to_sym)
    rescue KeyError
      raise ConfigurationError, 'You must specify catalog_id OR (catalog_items AND template_name)'
    end
    res[:catalog_id] = catalog_id
  end

  res
end

Instance Method Details

#execute ⇒ Object 



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# File 'lib/provisioner/cli.rb', line 61

def execute
  options = {}

  optparser = OptionParser.new do |o|

    o.banner = "Usage: #{File.basename($0)} [options] <action>"

    o.separator ""
    o.separator "Provision a machine described by the JSON template `machine_metadata` in the vCloud organisation"
    o.separator "described in the JSON config file `org_config`"
    o.separator ""
    o.separator "e.g. vcloud-box-spinner -u johndoe -o orgs/staging.json -m machines/frontend-1.json create"
    o.separator ""
    o.separator "[Available actions]:"
    o.separator "   #{Provisioner::AVAILABLE_ACTIONS.join(', ')}"
    o.separator ""
    o.separator "[Available options]:"

    o.on("-c", "--credential", "=GROUP", "fog credential group") do |v|
      options[:credential] = v
    end

    o.on("-u", "--user", "=USERNAME", "vCloud username") do |v|
      options[:user] = v
    end

    o.on("-p", "--password", "=PASSWORD", "vCloud password") do |v|
      options[:password] = v
    end

    o.on("-F", "--ssh-config", "=FILENAME", "SSH config file(s) to use (can be specified multiple times)") do |v|
      options[:ssh_config] ||= []
      options[:ssh_config].push(v)
    end

    options[:org_config] = {}
    o.on("-o", "--org-config", "=ORG-CONFIG-JSON",
         "The organisation configuration JSON file path") do |v|
      options[:org_config] = MultiJson.load(File.read(v), :symbolize_names => true)
    end

    options[:machine_metadata] = {}
    o.on("-m", "--machine-config", "=METADATA",
         "The machine configuration JSON file path") do |v|
      options[:machine_metadata] = MultiJson.load(File.read(v), :symbolize_names => true)
    end

    o.on('-s', '--setup-script', "=SETUP-SCRIPT", "path to setup script that should run after machine is brought up") do |v|
      options[:setup_script] = v
    end

    o.on("-d", "--debug", "Enable debugging output") do
      options[:debug] = true
    end

    o.on("-v", "--verbose", "Enable verbose output") do
      options[:log_level] = 0
    end

    o.on_tail("-h", "--help", "Show usage instructions") do
      puts o
      exit
    end
  end

  begin
    optparser.parse!(@args)

    if @args.length != 1
      raise ConfigurationError, "#{File.basename($0)} takes one argument"
    end

    action = @args[0]

    if options[:user] && options[:password].nil? then
      options[:password] = ask("vCloud password: ") { |q| q.echo = false }
    end

    provisioner_opts = self.class.process(options)

    provisioner = VcloudBoxProvisioner.build provisioner_opts
    provisioner.execute(action)
  rescue OptionParser::InvalidArgument, ConfigurationError => e
    $stderr.puts "Error: #{e}"
    $stderr.puts
    $stderr.puts optparser
    exit 1
  end
end