Method: LinuxAdmin::NetworkInterfaceRH#save

Defined in:
lib/linux_admin/network_interface/network_interface_rh.rb

#save ⇒ Boolean

Writes the contents of @interface_config to @interface_file as ‘key`=`value` pairs and resets the interface

Returns:

  • (Boolean) —

    true if the interface was successfully brought up with the new configuration, false otherwise



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# File 'lib/linux_admin/network_interface/network_interface_rh.rb', line 171

def save
  old_contents = @interface_file.file? ? File.read(@interface_file) : ""

  stop_success = stop
  # Stop twice because when configure both ipv4 and ipv6 as dhcp, ipv6 dhcp client will
  # exit and leave a /var/run/dhclient6-eth0.pid file. Then stop (ifdown eth0) will try
  # to kill this exited process so it returns 1. In the second call, this `.pid' file
  # has been deleted and ifdown returns 0.
  # See: https://bugzilla.redhat.com/show_bug.cgi?id=1472396
  stop_success = stop unless stop_success
  return false unless stop_success

  File.write(@interface_file, @interface_config.delete_blanks.collect { |k, v| "#{k}=#{v}" }.join("\n"))

  unless start
    File.write(@interface_file, old_contents)
    start
    return false
  end

  reload
end