Using attribute mode to drive dhcp_cookbook

attributes.rb

default[:dhcp][:failover] = nil
default[:dhcp][:allows] = [ "booting", "bootp", "unknown-clients" ]

default[:dhcp][:hosts] = []
default[:dhcp][:groups] = []
default[:dhcp][:networks] = []
default[:dhcp][:interfaces] = []

default[:dhcp][:hosts_bag] = "dhcp_hosts"
default[:dhcp][:networks_bag] = "dhcp_networks"
default[:dhcp][:groups_bag] = "dhcp_groups"

default[:dhcp][:parameters][:"default-lease-time"] = "6400"
default[:dhcp][:parameters][:"ddns-domainname"] = "\"#{domain}\""
default[:dhcp][:parameters][:"ddns-update-style"] = "interim"
default[:dhcp][:parameters][:"max-lease-time"] = "86400"
default[:dhcp][:parameters][:"update-static-leases"] = "true"
default[:dhcp][:parameters][:"one-lease-per-client"] =  "true"
default[:dhcp][:parameters][:"authoritative"] = ""
default[:dhcp][:parameters][:"ping-check"] = "true"
default[:dhcp][:parameters][:"next-server"] = node[:ipaddress]
default[:dhcp][:parameters][:"filename"] = '"pxelinux.0"'

default[:dhcp][:options][:'domain-name'] = "\"#{domain}\""
default[:dhcp][:options][:'domain-name-servers'] = "8.8.8.8"
default[:dhcp][:options][:'host-name'] = " = binary-to-ascii (16, 8, \"-\", substring (hardware, 1, 6))"

default[:dhcp][:dir] = "/etc/dhcp"
default[:dhcp][:init_config]  = "/etc/sysconfig/dhcpd"
case node[:platform_family]
when "rhel"
  default[:dhcp][:package_name] = "dhcp"
  default[:dhcp][:service_name] = "dhcpd"
  default[:dhcp][:init_config]  = "/etc/sysconfig/dhcpd"
  default[:dhcp][:init_iface] = "DHCPDARGS"

  if node[:platform_version].to_i >= 6
    default[:dhcp][:config_file]  = "/etc/dhcp/dhcpd.conf"
  else
    default[:dhcp][:dir] = "/etc/dhcpd"
    default[:dhcp][:config_file]  = "/etc/dhcpd.conf"
  end

when "debian"
  default[:dhcp][:package_name] = "isc-dhcp-server"
  default[:dhcp][:service_name] = "isc-dhcp-server"
  default[:dhcp][:config_file]  = "/etc/dhcp/dhcpd.conf"
  default[:dhcp][:init_config]  = "/etc/default/isc-dhcp-server"
  default[:dhcp][:init_iface] = "INTERFACES"
end

example_dhcp_recipe.rb

tag 'dhcp'

node.default[:dhcp][:options]['domain-name-servers'] = '10.33.87.98, 10.33.87.99'

include_recipe "dhcp::_package"
include_recipe "dhcp::_service"
include_recipe "dhcp::_config"

rndc_key = {
  'name' => 'dev.foo.com',
  'algorithm' => 'hmac-md5',
  'secret' => 'supersecret'
}

dns_zones = [
  {
    'zone' => 'dev.foo.com',
    'primary' => 'ns01.dev.foo.com',
    'key' => 'dev.foo.com'
  },
  {
    'zone' => '0.87.33.10.in-addr.arpa.',
    'primary' => 'ns01.dev.foo.com',
    'key' => 'dev.foo.com'
  }
]

dhcp_subnet "10.33.87.0" do
  conf_dir  node[:dhcp][:dir]
  netmask "255.255.255.0"
  broadcast "10.33.87.255"
  routers ["10.33.87.1"]
  range "10.33.87.5 10.33.87.254"
  key rndc_key
  zones dns_zones
end