Class: Beaker::Host

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

Direct Known Subclasses

PSWindows::Host, Unix::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, host_hash, options) ⇒ Host

Returns a new instance of Host.



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# File 'lib/beaker/host.rb', line 51

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

  @host_hash = self.platform_defaults.merge(@host_hash)
  pkg_initialize
end

Instance Attribute Details

#host_hash ⇒ Object (readonly)

Returns the value of attribute host_hash.



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# File 'lib/beaker/host.rb', line 50

def host_hash
  @host_hash
end

#logger ⇒ Object

Returns the value of attribute logger.



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# File 'lib/beaker/host.rb', line 49

def logger
  @logger
end

#name ⇒ Object (readonly)

Returns the value of attribute name.



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# File 'lib/beaker/host.rb', line 50

def name
  @name
end

#options ⇒ Object (readonly)

Returns the value of attribute options.



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# File 'lib/beaker/host.rb', line 50

def options
  @options
end

Class Method Details

.create(name, host_hash, options) ⇒ Object 



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# File 'lib/beaker/host.rb', line 29

def self.create name, host_hash, options
  case host_hash['platform']
  when /windows/
    cygwin = host_hash['is_cygwin']
    if cygwin.nil? or cygwin == true
      Windows::Host.new name, host_hash, options
    else
      PSWindows::Host.new name, host_hash, options
    end
  when /aix/
    Aix::Host.new name, host_hash, options
  when /osx/
    Mac::Host.new name, host_hash, options
  when /freebsd/
    FreeBSD::Host.new name, host_hash, options
  else
    Unix::Host.new name, host_hash, options
  end
end

Instance Method Details

#+(other) ⇒ Object 



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# File 'lib/beaker/host.rb', line 138

def + other
  @name + other
end

#[](k) ⇒ Object

Does this host have this key? Either as defined in the host itself, or globally?



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# File 'lib/beaker/host.rb', line 109

def [] k
  host_hash[k] || options[k]
end

#[]=(k, v) ⇒ Object 



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# File 'lib/beaker/host.rb', line 104

def []= k, v
  host_hash[k] = v
end

#close ⇒ Object 



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# File 'lib/beaker/host.rb', line 224

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

#connection ⇒ Object 



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# File 'lib/beaker/host.rb', line 218

def connection
  @connection ||= SshConnection.connect( reachable_name,
                                         self['user'],
                                         self['ssh'], { :logger => @logger } )
end

#delete(k) ⇒ Object 



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# File 'lib/beaker/host.rb', line 118

def delete k
  host_hash.delete(k)
end

#do_rsync_to(from_path, to_path, opts = {}) ⇒ Object

rsync a file or directory from the localhost to this test host

Parameters:

  • from_path (String) —

    The path to the file/dir to upload

  • to_path (String) —

    The destination path on the host

  • opts (Hash{Symbol=>String}) (defaults to: {}) —

    Options to alter execution

Options Hash (opts):

  • :ignore (Array<String>) —

    An array of file/dir paths that will not be copied to the host



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# File 'lib/beaker/host.rb', line 382

def do_rsync_to from_path, to_path, opts = {}
  ssh_opts = self['ssh']
  rsync_args = []
  ssh_args = []

  if not File.file?(from_path) and not File.directory?(from_path)
    raise IOError, "No such file or directory - #{from_path}"
  end

  # We enable achieve mode and compression
  rsync_args << "-az"

  if not self['user']
    user = "root"
  else
    user = self['user']
  end
  hostname_with_user = "#{user}@#{reachable_name}"

  Rsync.host = hostname_with_user

  # vagrant uses temporary ssh configs in order to use dynamic keys
  # without this config option using ssh may prompt for password
  if ssh_opts[:config] and File.exists?(ssh_opts[:config])
    ssh_args << "-F #{ssh_opts[:config]}"
  else
    if ssh_opts.has_key?('keys') and
        ssh_opts.has_key?('auth_methods') and
        ssh_opts['auth_methods'].include?('publickey')

      key = ssh_opts['keys']

      # If an array was set, then we use the first value
      if key.is_a? Array
        key = key.first
      end

      # We need to expand tilde manually as rsync can be
      # funny sometimes
      key = File.expand_path(key)

      ssh_args << "-i #{key}"
    end
  end

  if ssh_opts.has_key?(:port)
    ssh_args << "-p #{ssh_opts[:port]}"
  end

  # We disable prompt when host isn't known
  ssh_args << "-o 'StrictHostKeyChecking no'"

  if not ssh_args.empty?
    rsync_args << "-e \"ssh #{ssh_args.join(' ')}\""
  end

  if opts.has_key?(:ignore) and not opts[:ignore].empty?
    opts[:ignore].map! do |value|
      "--exclude '#{value}'"
    end
    rsync_args << opts[:ignore].join(' ')
  end

  # We assume that the *contents* of the directory 'from_path' needs to be
  # copied into the directory 'to_path'
  if File.directory?(from_path) and not from_path.end_with?('/')
    from_path += '/'
  end

  @logger.notify "rsync: localhost:#{from_path} to #{hostname_with_user}:#{to_path} {:ignore => #{opts[:ignore]}}"
  result = Rsync.run(from_path, to_path, rsync_args)
  @logger.debug("rsync returned #{result.inspect}")
  result
end

#do_scp_from(source, target, options) ⇒ Object 



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# File 'lib/beaker/host.rb', line 369

def do_scp_from source, target, options

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

#do_scp_to(source, target, options) ⇒ Object

scp files from the localhost to this test host, if a directory is provided it is recursively copied. If the provided source is a directory both the contents of the directory and the directory itself will be copied to the host, if you only want to copy directory contents you will either need to specify the contents file by file or do a separate ‘mv’ command post scp_to to create the directory structure as desired. To determine if a file/dir is ‘ignored’ we compare to any contents of the source dir and NOT any part of the path to that source dir.

Examples:

do_scp_to('source/dir1/dir2/dir3', 'target')
-> will result in creation of target/source/dir1/dir2/dir3 on host

do_scp_to('source/file.rb', 'target', { :ignore => 'file.rb' }
-> will result in not files copyed to the host, all are ignored

Parameters:

  • source (String) —

    The path to the file/dir to upload

  • target (String) —

    The destination path on the host

  • options (Hash{Symbol=>String}) —

    Options to alter execution

Options Hash (options):

  • :ignore (Array<String>) —

    An array of file/dir paths that will not be copied to the host



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# File 'lib/beaker/host.rb', line 298

def do_scp_to source, target, options
  @logger.notify "localhost $ scp #{source} #{@name}:#{target} {:ignore => #{options[:ignore]}}"

  result = Result.new(@name, [source, target])
  has_ignore = options[:ignore] and not options[:ignore].empty?
  # construct the regex for matching ignored files/dirs
  ignore_re = nil
  if has_ignore
    ignore_arr = Array(options[:ignore]).map do |entry|
      "((\/|\\A)#{Regexp.escape(entry)}(\/|\\z))"
    end
    ignore_re = Regexp.new(ignore_arr.join('|'))
    @logger.debug("going to ignore #{ignore_re}")
  end

  # either a single file, or a directory with no ignores
  if not File.file?(source) and not File.directory?(source)
    raise IOError, "No such file or directory - #{source}"
  end
  if File.file?(source) or (File.directory?(source) and not has_ignore)
    source_file = source
    if has_ignore and (source =~ ignore_re)
      @logger.trace "After rejecting ignored files/dirs, there is no file to copy"
      source_file = nil
      result.stdout = "No files to copy"
      result.exit_code = 1
    end
    if source_file
      result = connection.scp_to(source_file, target, options, $dry_run)
      @logger.trace result.stdout
    end
  else # a directory with ignores
    dir_source = Dir.glob("#{source}/**/*").reject do |f|
      f.gsub(/\A#{Regexp.escape(source)}/, '') =~ ignore_re #only match against subdirs, not full path
    end
    @logger.trace "After rejecting ignored files/dirs, going to scp [#{dir_source.join(", ")}]"

    # create necessary directory structure on host
    # run this quietly (no STDOUT)
    @logger.quiet(true)
    required_dirs = (dir_source.map{ | dir | File.dirname(dir) }).uniq
    require 'pathname'
    required_dirs.each do |dir|
      dir_path = Pathname.new(dir)
      if dir_path.absolute?
        mkdir_p(File.join(target, dir.gsub(/#{Regexp.escape(File.dirname(File.absolute_path(source)))}/, '')))
      else
        mkdir_p( File.join(target, dir) )
      end
    end
    @logger.quiet(false)

    # copy each file to the host
    dir_source.each do |s|
      # Copy files, not directories (as they are copied recursively)
      next if File.directory?(s)

      s_path = Pathname.new(s)
      if s_path.absolute?
        file_path = File.join(target, File.dirname(s).gsub(/#{Regexp.escape(File.dirname(File.absolute_path(source)))}/,''))
      else
        file_path = File.join(target, File.dirname(s))
      end
      result = connection.scp_to(s, file_path, options, $dry_run)
      @logger.trace result.stdout
    end
  end

  return result
end

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



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# File 'lib/beaker/host.rb', line 229

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} #{Time.new.strftime('%H:%M:%S')}$ #{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)
    }

    if not options[:silent]
      @logger.debug "\n#{log_prefix} executed in %0.2f seconds" % seconds
    end

    unless options[:silent]
      # What?
      result.log(@logger)
      if !options[:expect_connection_failure] && !result.exit_code
        # no exit code was collected, so the stream failed
        raise CommandFailure, "Host '#{self}' connection failure running:\n #{cmdline}\nLast #{@options[:trace_limit]} lines of output were:\n#{result.formatted_output(@options[:trace_limit])}"

      end
      if options[:expect_connection_failure] && result.exit_code
        # should have had a connection failure, but didn't
        # wait to see if the connection failure will be generation, otherwise raise error
        if not connection.wait_for_connection_failure
          raise CommandFailure,  "Host '#{self}' should have resulted in a connection failure running:\n #{cmdline}\nLast #{@options[:trace_limit]} lines of output were:\n#{result.formatted_output(@options[:trace_limit])}"
        end
      end
      # 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??
      if !options[:accept_all_exit_codes] && !result.exit_code_in?(Array(options[:acceptable_exit_codes] || [0, nil]))
        raise CommandFailure, "Host '#{self}' exited with #{result.exit_code} running:\n #{cmdline}\nLast #{@options[:trace_limit]} lines of output were:\n#{result.formatted_output(@options[:trace_limit])}"
      end
    end
    # Danger, so we have to return this result?
    result
  end
end

#get_ip ⇒ Object

Determine the ip address of this host



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# File 'lib/beaker/host.rb', line 204

def get_ip
  @logger.warn("Uh oh, this should be handled by sub-classes but hasn't been")
end

#graceful_restarts? ⇒ Boolean

Mirrors the true/false value of the host’s ‘graceful-restarts’ property, or falls back to the value of is_using_passenger? if ‘graceful-restarts’ is nil, but only if this is not a PE run (foss only).

Returns:

  • (Boolean) 


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# File 'lib/beaker/host.rb', line 166

def graceful_restarts?
  graceful =
  if !self['graceful-restarts'].nil?
    self['graceful-restarts']
  else
    !is_pe? && is_using_passenger?
  end
  graceful
end

#has_key?(k) ⇒ Boolean

Does this host have this key? Either as defined in the host itself, or globally?

Returns:

  • (Boolean) 


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# File 'lib/beaker/host.rb', line 114

def has_key? k
  host_hash.has_key?(k) || options.has_key?(k)
end

#hostname ⇒ Object

Return the public name of the particular host, which may be different then the name of the host provided in the configuration file as some provisioners create random, unique hostnames.



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# File 'lib/beaker/host.rb', line 134

def hostname
  host_hash['vmhostname'] || @name
end

#ip ⇒ Object

Return the ip address of this host



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# File 'lib/beaker/host.rb', line 209

def ip
  self[:ip] ||= get_ip
end

#is_cygwin? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/beaker/host.rb', line 146

def is_cygwin?
  self.class == Windows::Host
end

#is_pe? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/beaker/host.rb', line 142

def is_pe?
  self['type'] && self['type'].to_s =~ /pe/
end

#is_powershell? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/beaker/host.rb', line 150

def is_powershell?
  self.class == PSWindows::Host
end

#is_using_passenger? ⇒ Boolean

True if this is a PE run, or if the host’s ‘passenger’ property has been set.

Returns:

  • (Boolean) 


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# File 'lib/beaker/host.rb', line 191

def is_using_passenger?
  is_pe? || self['passenger']
end

#is_x86_64? ⇒ Boolean

Returns true if x86_64, false otherwise.

Returns:

  • (Boolean) —

    true if x86_64, false otherwise



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# File 'lib/beaker/host.rb', line 214

def is_x86_64?
  @x86_64 ||= determine_if_x86_64
end

#log_prefix ⇒ Object 



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# File 'lib/beaker/host.rb', line 195

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

#node_name ⇒ Object 



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# File 'lib/beaker/host.rb', line 64

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 59

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

#platform ⇒ Object 



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

def platform
  self['platform']
end

#port_open?(port) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/beaker/host.rb', line 71

def port_open? port
  begin
    Timeout.timeout SELECT_TIMEOUT do
      TCPSocket.new(reachable_name, port).close
      return true
    end
  rescue Errno::ECONNREFUSED, Timeout::Error, Errno::ETIMEDOUT
    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 100

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

#reachable_name ⇒ Object

Return the preferred method to reach the host, will use IP is available and then default to #hostname.



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# File 'lib/beaker/host.rb', line 92

def reachable_name
  self['ip'] || hostname
end

#to_s ⇒ Object

The #hostname of this host.



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# File 'lib/beaker/host.rb', line 128

def to_s
  hostname
end

#to_str ⇒ Object

The #hostname of this host.



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

def to_str
  hostname
end

#up? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/beaker/host.rb', line 82

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

#use_service_scripts? ⇒ Boolean

True if this is a pe run, or if the host has had a ‘use-service’ property set.

Returns:

  • (Boolean) 


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# File 'lib/beaker/host.rb', line 159

def use_service_scripts?
  is_pe? || self['use-service']
end

#uses_passenger!(puppetservice = 'apache2') ⇒ Object

Modifies the host settings to indicate that it will be using passenger service scripts, (apache2) by default. Does nothing if this is a PE host, since it is already using passenger.

Parameters:

  • puppetservice (String) (defaults to: 'apache2') —

    Name of the service script that should be called to stop/startPuppet on this host. Defaults to ‘apache2’.



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# File 'lib/beaker/host.rb', line 181

def uses_passenger!(puppetservice = 'apache2')
  if !is_pe?
    self['passenger'] = true
    self['puppetservice'] = puppetservice
    self['use-service'] = true
  end
  return true
end