Class: Beaker::Host

Inherits:
Object
  • Object
show all
Includes:
DSL::Helpers, DSL::Patterns
Defined in:
lib/beaker/host.rb

Direct Known Subclasses

Unix::Host

Defined Under Namespace

Classes: CommandFailure, PuppetConfigReader, RebootFailure, RebootWarning

Constant Summary collapse

SELECT_TIMEOUT = 
30

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Methods included from DSL::Patterns

#block_on

Methods included from DSL::Helpers::HoconHelpers

#hocon_file_edit_in_place_on, #hocon_file_edit_on, #hocon_file_read_on

Methods included from DSL::Helpers::WebHelpers

#link_exists?, #port_open_within?

Methods included from DSL::Helpers::TestHelpers

#current_step_name, #current_test_filename, #current_test_name, #set_current_step_name, #set_current_test_filename, #set_current_test_name

Methods included from DSL::Helpers::HostHelpers

#add_system32_hosts_entry, #archive_file_from, #backup_the_file, #check_for_package, #create_remote_file, #curl_on, #curl_with_retries, #directory_exists_on, #echo_on, #execute_powershell_script_on, #exit_code, #file_contents_on, #file_exists_on, #install_package, #link_exists_on, #on, #retry_on, #rsync_to, #run_script, #run_script_on, #scp_from, #scp_to, #shell, #stderr, #stdout, #uninstall_package, #upgrade_package, #win_ads_path

Constructor Details

#initialize(name, host_hash, options) ⇒ Host

Returns a new instance of Host.



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

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['packaging_platform'] ||= @host_hash['platform']

  @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 70

def host_hash
  @host_hash
end

#logger ⇒ Object

Returns the value of attribute logger.



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# File 'lib/beaker/host.rb', line 69

def logger
  @logger
end

#name ⇒ Object (readonly)

Returns the value of attribute name.



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# File 'lib/beaker/host.rb', line 70

def name
  @name
end

#options ⇒ Object (readonly)

Returns the value of attribute options.



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# File 'lib/beaker/host.rb', line 70

def options
  @options
end

Class Method Details

.create(name, host_hash, options) ⇒ Object 



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

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
  when /eos/
    Eos::Host.new name, host_hash, options
  when /cisco/
    Cisco::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 175

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 146

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

#[]=(k, v) ⇒ Object 



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# File 'lib/beaker/host.rb', line 141

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

#close ⇒ Object 



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# File 'lib/beaker/host.rb', line 319

def close
  if @connection
    @connection.close
    # update connection information
    @connection.ip         = self['ip'] if self['ip']
    @connection.vmhostname = self['vmhostname'] if self['vmhostname']
    @connection.hostname   = @name
  end
  @connection = nil
end

#connection ⇒ Object 



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# File 'lib/beaker/host.rb', line 296

def connection
  # create new connection object if necessary
  if self['hypervisor'] == 'none' && @name == 'localhost'
    @connection ||= LocalConnection.connect( { :ssh_env_file => self['ssh_env_file'], :logger => @logger })
    return @connection
  end

  @connection ||= SshConnection.connect( { :ip => self['ip'], :vmhostname => self['vmhostname'], :hostname => @name },
                                         self['user'],
                                         self['ssh'], { :logger => @logger, :ssh_connection_preference => self[:ssh_connection_preference]} )
  # update connection information
  if self['ip'] && (@connection.ip != self['ip'])
    @connection.ip = self['ip']
  end
  if self['vmhostname'] && (@connection.vmhostname != self['vmhostname'])
    @connection.vmhostname = self['vmhostname']
  end
  if @name && (@connection.hostname != @name)
    @connection.hostname = @name
  end
  @connection
end

#delete(k) ⇒ Object 



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# File 'lib/beaker/host.rb', line 155

def delete k
  host_hash.delete(k)
end

#do_rsync_to(from_path, to_path, opts = {}) ⇒ Rsync::Result

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

Returns:

  • (Rsync::Result) —

    Rsync result with status code

Raises:



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# File 'lib/beaker/host.rb', line 533

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
  #
  # We still want any user-set SSH config to win though
  filesystem_ssh_config = nil
  if ssh_opts[:config] && File.exists?(ssh_opts[:config])
    filesystem_ssh_config = ssh_opts[:config]
  elsif self[:vagrant_ssh_config] && File.exists?(self[:vagrant_ssh_config])
    filesystem_ssh_config = self[:vagrant_ssh_config]
  end

  if filesystem_ssh_config
    ssh_args << "-F #{filesystem_ssh_config}"
  else
    if ssh_opts.has_key?('keys') and
        ssh_opts.has_key?('auth_methods') and
        ssh_opts['auth_methods'].include?('publickey')

      # find the first SSH key that exists
      key = Array(ssh_opts['keys']).find do |k|
          File.exist?(k)
      end

      if key
        # rsync doesn't always play nice with tilde, so be sure to expand first
        ssh_args << "-i #{File.expand_path(key)}"
      end
    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?
    rsync_args << opts[:ignore].map { |value| "--exclude '#{value}'" }.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}")

  return result if result.success?
  raise Beaker::Host::CommandFailure, result.error
end

#do_scp_from(source, target, options) ⇒ Object 



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# File 'lib/beaker/host.rb', line 509

def do_scp_from source, target, options
  # use the value of :dry_run passed to the method unless
  # undefined, then use parsed @options hash.
  options[:dry_run] ||= @options[:dry_run]

  if options[:dry_run]
    scp_cmd = "scp #{@name}:#{source} #{target}"
    @logger.debug "\n Running in :dry_run mode. localhost $ #{scp_cmd} not executed."
    return  NullResult.new(self, scp_cmd)
  end

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

#do_scp_to(source, target_path, 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_path (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 425

def do_scp_to source, target_path, options
  target = self.scp_path( target_path )

  # use the value of :dry_run passed to the method unless
  # undefined, then use parsed @options hash.
  options[:dry_run] ||= @options[:dry_run]

  if options[:dry_run]
    scp_cmd = "scp #{source} #{@name}:#{target}"
    @logger.debug "\n Running in :dry_run mode. localhost $ #{scp_cmd} not executed."
    return NullResult.new(self, scp_cmd)
  end

  @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)
      @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? and (File.dirname(File.absolute_path(source)).to_s != '/')
        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? and (File.dirname(File.absolute_path(source)).to_s != '/')
        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)
      @logger.trace result.stdout
    end
  end

  self.scp_post_operations( target, target_path )
  return result
end

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



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# File 'lib/beaker/host.rb', line 330

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

  # use the value of :dry_run passed to the method unless
  # undefined, then use parsed @options hash.
  options[:dry_run] ||= @options[:dry_run]

  if options[:dry_run]
    @logger.debug "\n Running in :dry_run mode. Command #{cmdline} not executed."
    result = Beaker::NullResult.new(self, command)
    return result
  end

  if options[:silent]
    output_callback = nil
  else
    @logger.debug "\n#{log_prefix} #{Time.new.strftime('%H:%M:%S')}$ #{cmdline}"
    if @options[:color_host_output]
      output_callback = logger.method(:color_host_output)
    else
      output_callback = logger.method(:host_output)
    end
  end

  unless options[: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

    seconds = Benchmark.realtime {
      @logger.with_indent do
        result = connection.execute(cmdline, options, output_callback)
      end
    }

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

    if options[:reset_connection]
      # Expect the connection to fail hard and possibly take a long time timeout.
      # Pre-emptively reset it so we don't wait forever.
      close
      return result
    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(options, output_callback)
          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] && options[:acceptable_exit_codes]
        @logger.warn ":accept_all_exit_codes & :acceptable_exit_codes set. :acceptable_exit_codes overrides, but they shouldn't both be set at once"
        options[:accept_all_exit_codes] = false
      end
      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
  end
  result
end

#fips_mode? ⇒ Boolean

Returns true if the host is running in FIPS mode.

We currently only test FIPS mode on Redhat 7. Other detection modes should be added here if we expand FIPS support to other platforms.

Returns:

  • (Boolean) 


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

def fips_mode?
  case self['platform']
  when /el-7/
    begin
      execute("cat /proc/sys/crypto/fips_enabled") == "1"
    rescue Beaker::Host::CommandFailure
      false
    end
  else
    false
  end
end

#get_ip ⇒ Object

Determine the ip address of this host



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# File 'lib/beaker/host.rb', line 259

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

#get_public_ip ⇒ Object

Determine the ip address using logic specific to the hypervisor



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# File 'lib/beaker/host.rb', line 264

def get_public_ip
  case host_hash[:hypervisor]
  when /^(ec2|openstack)$/
    if self[:hypervisor] == 'ec2' && self[:instance]
      return self[:instance].ip_address
    elsif self[:hypervisor] == 'openstack' && self[:ip]
      return self[:ip]
    else
      # In the case of using ec2 instances with the --no-provision flag, the ec2
      # instance object does not exist and we should just use the curl endpoint
      # specified here:
      # http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/using-instance-addressing.html
      if self.instance_of?(Windows::Host)
      execute("wget http://169.254.169.254/latest/meta-data/public-ipv4").strip
      else
      execute("curl http://169.254.169.254/latest/meta-data/public-ipv4").strip
      end
    end
  end
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 203

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 151

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 171

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

#ip ⇒ Object

Return the ip address of this host Always pull fresh, because this can sometimes change



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# File 'lib/beaker/host.rb', line 287

def ip
  self['ip'] = get_public_ip || get_ip
end

#is_cygwin? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/beaker/host.rb', line 183

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

#is_pe? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/beaker/host.rb', line 179

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 187

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 246

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 292

def is_x86_64?
  @x86_64 ||= determine_if_x86_64
end

#log_prefix ⇒ Object 



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# File 'lib/beaker/host.rb', line 250

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 85

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_configprint['node_name_value'].strip
end

#pkg_initialize ⇒ Object 



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# File 'lib/beaker/host.rb', line 80

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 191

def platform
  self['platform']
end

#port_open?(port) ⇒ Boolean

Returns:

  • (Boolean) 


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

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, Errno::EHOSTUNREACH
    return false
  end
end

#puppet_configprint(command = 'agent') ⇒ Object Also known as: puppet

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 136

def puppet_configprint(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 128

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 165

def to_s
  hostname
end

#to_str ⇒ Object

The #hostname of this host.



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# File 'lib/beaker/host.rb', line 160

def to_str
  hostname
end

#up? ⇒ Boolean

Returns:

  • (Boolean) 


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

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 196

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 236

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

#wait_for_port(port, attempts = 15) ⇒ Object

Wait for a port on the host. Useful for those occasions when you’ve called host.reboot and want to avoid spam from subsequent SSH connections retrying to connect from say retry_on()



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# File 'lib/beaker/host.rb', line 106

def wait_for_port(port, attempts=15)
  @logger.debug("  Waiting for port #{port} ... ", false)
  start = Time.now
  done = repeat_fibonacci_style_for(attempts) { port_open?(port) }
  if done
    @logger.debug('connected in %0.2f seconds' % (Time.now - start))
  else
    @logger.debug('timeout')
  end
  done
end