Class: VagrantPlugins::GuestFedora::Cap::ChangeHostName

Inherits:

Object

• Object
• VagrantPlugins::GuestFedora::Cap::ChangeHostName

show all

Defined in:

plugins/guests/fedora/cap/change_host_name.rb

Instance Attribute Summary (collapse)

• - (Object) machine readonly

  Returns the value of attribute machine.

• - (Object) new_hostname readonly

  Returns the value of attribute new_hostname.

Class Method Summary (collapse)

• + (Object) change_host_name(machine, name)

Instance Method Summary (collapse)

• - (Object) change!
• - (Object) current_hostname
• - (Object) fqdn
• - (Object) get_current_hostname
• - (ChangeHostName) initialize(machine, new_hostname) constructor

  A new instance of ChangeHostName.

• - (Object) refresh_hostname_service
• - (Object) short_hostname
• - (Boolean) should_change?
• - (Object) sudo(cmd, &block)
• - (Object) update_etc_hostname
• - (Object) update_etc_hosts

  /etc/hosts should resemble: 127.0.0.1 localhost 127.0.1.1 host.fqdn.com host.fqdn host.

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# File 'plugins/guests/fedora/cap/change_host_name.rb', line 11

def initialize(machine, new_hostname)
  @machine = machine
  @new_hostname = new_hostname
end

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# File 'plugins/guests/fedora/cap/change_host_name.rb', line 9

def machine
  @machine
end

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# File 'plugins/guests/fedora/cap/change_host_name.rb', line 9

def new_hostname
  @new_hostname
end

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# File 'plugins/guests/fedora/cap/change_host_name.rb', line 5

def self.change_host_name(machine, name)
  new(machine, name).change!
end

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# File 'plugins/guests/fedora/cap/change_host_name.rb', line 16

def change!
  return unless should_change?

  update_etc_hostname
  update_etc_hosts
  refresh_hostname_service
end

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# File 'plugins/guests/fedora/cap/change_host_name.rb', line 28

def current_hostname
  @current_hostname ||= get_current_hostname
end

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# File 'plugins/guests/fedora/cap/change_host_name.rb', line 61

def fqdn
  new_hostname
end

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# File 'plugins/guests/fedora/cap/change_host_name.rb', line 32

def get_current_hostname
  hostname = ""
  sudo "hostname -f" do |type, data|
    hostname = data.chomp if type == :stdout && hostname.empty?
  end

  hostname
end

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# File 'plugins/guests/fedora/cap/change_host_name.rb', line 57

def refresh_hostname_service
  sudo("hostname -F /etc/hostname")
end

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# File 'plugins/guests/fedora/cap/change_host_name.rb', line 65

def short_hostname
  new_hostname.split('.').first
end

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# File 'plugins/guests/fedora/cap/change_host_name.rb', line 24

def should_change?
  new_hostname != current_hostname
end

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# File 'plugins/guests/fedora/cap/change_host_name.rb', line 69

def sudo(cmd, &block)
  machine.communicate.sudo(cmd, &block)
end

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# File 'plugins/guests/fedora/cap/change_host_name.rb', line 41

def update_etc_hostname
  sudo("echo '#{short_hostname}' > /etc/hostname")
end

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# File 'plugins/guests/fedora/cap/change_host_name.rb', line 48

def update_etc_hosts
  ip_address = '([0-9]{1,3}\.){3}[0-9]{1,3}'
  search     = "^(#{ip_address})\\s+#{Regexp.escape(current_hostname)}(\\s.*)?$"
  replace    = "\\1 #{fqdn} #{short_hostname}"
  expression = ['s', search, replace, 'g'].join('@')

  sudo("sed -ri '#{expression}' /etc/hosts")
end