Class: Beaker::Host

Inherits:
Object
  • Object
show all
Defined in:
lib/beaker/host.rb

Direct Known Subclasses

Unix::Host, Windows::Host

Defined Under Namespace

Classes: CommandFailure, PuppetConfigReader

Constant Summary collapse

SELECT_TIMEOUT = 
30

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(name, options) ⇒ Host

Returns a new instance of Host.



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# File 'lib/beaker/host.rb', line 45

def initialize name, options
  @logger = options[:logger]
  @name, @options = name.to_s, options.dup

  # This is annoying and its because of drift/lack of enforcement/lack of having
  # a explict relationship between our defaults, our setup steps and how they're
  # related through 'type' and the differences between the assumption of our two
  # configurations we have for many of our products
  type = is_pe? ? :pe : :foss
  @defaults = merge_defaults_for_type @options, type
  pkg_initialize
end

Instance Attribute Details

#defaults ⇒ Object (readonly)

Returns the value of attribute defaults.



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# File 'lib/beaker/host.rb', line 44

def defaults
  @defaults
end

#logger ⇒ Object

Returns the value of attribute logger.



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# File 'lib/beaker/host.rb', line 43

def logger
  @logger
end

#name ⇒ Object (readonly)

Returns the value of attribute name.



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# File 'lib/beaker/host.rb', line 44

def name
  @name
end

Class Method Details

.create(name, options) ⇒ Object 



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# File 'lib/beaker/host.rb', line 32

def self.create name, options
  case options['HOSTS'][name]['platform']
  when /windows/
    Windows::Host.new name, options
  when /aix/
    Aix::Host.new name, options
  else
    Unix::Host.new name, options
  end
end

Instance Method Details

#+(other) ⇒ Object 



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# File 'lib/beaker/host.rb', line 127

def + other
  @name + other
end

#[](k) ⇒ Object 



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# File 'lib/beaker/host.rb', line 111

def [] k
  @defaults[k]
end

#[]=(k, v) ⇒ Object 



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# File 'lib/beaker/host.rb', line 107

def []= k, v
  @defaults[k] = v
end

#close ⇒ Object 



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# File 'lib/beaker/host.rb', line 149

def close
  @connection.close if @connection
  @connection = nil
end

#connection ⇒ Object 



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# File 'lib/beaker/host.rb', line 143

def connection
  @connection ||= SshConnection.connect( reachable_name,
                                         self['user'],
                                         self['ssh'] )
end

#do_scp_from(source, target, options) ⇒ Object 



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# File 'lib/beaker/host.rb', line 198

def do_scp_from source, target, options

  @logger.debug "localhost $ scp #{@name}:#{source} #{target} #{options.to_s}"
  result = connection.scp_from(source, target, options, $dry_run)
  return result
end

#do_scp_to(source, target, options) ⇒ Object 



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# File 'lib/beaker/host.rb', line 192

def do_scp_to source, target, options
  @logger.debug "localhost $ scp #{source} #{@name}:#{target} #{options.to_s}"
  result = connection.scp_to(source, target, options, $dry_run)
  return result
end

#exec(command, options = {}) ⇒ Object 



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# File 'lib/beaker/host.rb', line 154

def exec command, options={}
  # I've always found this confusing
  cmdline = command.cmd_line(self)

  if options[:silent]
    output_callback = nil
  else
    @logger.debug "\n#{log_prefix} $ #{cmdline}"
    output_callback = logger.method(:host_output)
  end

  unless $dry_run
    # is this returning a result object?
    # the options should come at the end of the method signature (rubyism)
    # and they shouldn't be ssh specific
    result = nil

    seconds = Benchmark.realtime {
      result = connection.execute(cmdline, options, output_callback)
    }
    @logger.debug "\n#{log_prefix} executed in %0.2f seconds" % seconds

    unless options[:silent]
      # What?
      result.log(@logger)
      # No, TestCase has the knowledge about whether its failed, checking acceptable
      # exit codes at the host level and then raising...
      # is it necessary to break execution??
      unless result.exit_code_in?(Array(options[:acceptable_exit_codes] || 0))
        limit = 10
        raise CommandFailure, "Host '#{self}' exited with #{result.exit_code} running:\n #{cmdline}\nLast #{limit} lines of output were:\n#{result.formatted_output(limit)}"
      end
    end
    # Danger, so we have to return this result?
    result
  end
end

#has_key?(k) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/beaker/host.rb', line 115

def has_key? k
  @defaults.has_key?(k)
end

#is_pe? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/beaker/host.rb', line 131

def is_pe?
  @options.is_pe?
end

#log_prefix ⇒ Object 



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# File 'lib/beaker/host.rb', line 135

def log_prefix
  if @defaults['vmhostname']
    "#{self} (#{@name})"
  else
    self.to_s
  end
end

#merge_defaults_for_type(options, type) ⇒ Object 



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# File 'lib/beaker/host.rb', line 63

def merge_defaults_for_type options, type
  defaults = self.class.send "#{type}_defaults".to_sym
  defaults.merge(options.merge((options['HOSTS'][name])))
end

#node_name ⇒ Object 



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# File 'lib/beaker/host.rb', line 68

def node_name
  # TODO: might want to consider caching here; not doing it for now because
  #  I haven't thought through all of the possible scenarios that could
  #  cause the value to change after it had been cached.
  result = puppet['node_name_value'].strip
end

#pkg_initialize ⇒ Object 



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# File 'lib/beaker/host.rb', line 58

def pkg_initialize
  # This method should be overridden by platform-specific code to
  # handle whatever packaging-related initialization is necessary.
end

#port_open?(port) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/beaker/host.rb', line 75

def port_open? port
  begin
    Timeout.timeout SELECT_TIMEOUT do
      TCPSocket.new(reachable_name, port).close
      return true
    end
  rescue Errno::ECONNREFUSED, Timeout::Error
    return false
  end
end

#puppet(command = 'agent') ⇒ Object

Returning our PuppetConfigReader here allows users of the Host class to do things like ‘host.puppet` to query the ’main’ section or, if they want the configuration for a particular run type, ‘host.puppet(’agent’)‘



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# File 'lib/beaker/host.rb', line 103

def puppet(command='agent')
  PuppetConfigReader.new(self, command)
end

#reachable_name ⇒ Object 



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# File 'lib/beaker/host.rb', line 95

def reachable_name
  self['ip'] || self['vmhostname'] || name
end

#to_s ⇒ Object 



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# File 'lib/beaker/host.rb', line 123

def to_s
  @defaults['vmhostname'] || @name
end

#to_str ⇒ Object 



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# File 'lib/beaker/host.rb', line 119

def to_str
  @defaults['vmhostname'] || @name
end

#up? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/beaker/host.rb', line 86

def up?
  begin
    Socket.getaddrinfo( reachable_name, nil )
    return true
  rescue SocketError
    return false
  end
end