-# == Class: neutron::agents::dhcp
-#
-# Setups Neutron DHCP agent.
-#
-# === Parameters
-#
-# [*package_ensure*]
-# (optional) Ensure state for package. Defaults to 'present'.
-#
-# [*enabled*]
-# (optional) Enable state for service. Defaults to 'true'.
-#
-# [*manage_service*]
-# (optional) Whether to start/stop the service
-# Defaults to true
-#
-# [*debug*]
-# (optional) Show debugging output in log. Defaults to false.
-#
-# [*state_path*]
-# (optional) Where to store dnsmasq state files. This directory must be
-# writable by the user executing the agent. Defaults to '/var/lib/neutron'.
-#
-# [*resync_interval*]
-# (optional) The DHCP agent will resync its state with Neutron to recover
-# from any transient notification or rpc errors. The interval is number of
-# seconds between attempts. Defaults to 30.
-#
-# [*interface_driver*]
-# (optional) Defaults to 'neutron.agent.linux.interface.OVSInterfaceDriver'.
-#
-# [*dhcp_driver*]
-# (optional) Defaults to 'neutron.agent.linux.dhcp.Dnsmasq'.
-#
-# [*root_helper*]
-# (optional) Defaults to 'sudo neutron-rootwrap /etc/neutron/rootwrap.conf'.
-# Addresses bug: https://bugs.launchpad.net/neutron/+bug/1182616
-# Note: This can safely be removed once the module only targets the Havana release.
-#
-# [*use_namespaces*]
-# (optional) Allow overlapping IP (Must have kernel build with
-# CONFIG_NET_NS=y and iproute2 package that supports namespaces).
-# Defaults to true.
-#
-# [*dnsmasq_config_file*]
-# (optional) Override the default dnsmasq settings with this file.
-# Defaults to undef
-#
-# [*dhcp_delete_namespaces*]
-# (optional) Delete namespace after removing a dhcp server
-# Defaults to false.
-#
-# [*enable_isolated_metadata*]
-# (optional) enable metadata support on isolated networks.
-# Defaults to false.
-#
-# [*enable_metadata_network*]
-# (optional) Allows for serving metadata requests coming from a dedicated metadata
-# access network whose cidr is 169.254.169.254/16 (or larger prefix), and is
-# connected to a Neutron router from which the VMs send metadata request.
-# This option requires enable_isolated_metadata = True
-# Defaults to false.
-#
-class neutron::agents::dhcp (
- $package_ensure = present,
- $enabled = true,
- $manage_service = true,
- $debug = false,
- $state_path = '/var/lib/neutron',
- $resync_interval = 30,
- $interface_driver = 'neutron.agent.linux.interface.OVSInterfaceDriver',
- $dhcp_driver = 'neutron.agent.linux.dhcp.Dnsmasq',
- $root_helper = 'sudo neutron-rootwrap /etc/neutron/rootwrap.conf',
- $use_namespaces = true,
- $dnsmasq_config_file = undef,
- $dhcp_delete_namespaces = false,
- $enable_isolated_metadata = false,
- $enable_metadata_network = false
-) {
-
- include neutron::params
-
- Neutron_config<||> ~> Service['neutron-dhcp-service']
- Neutron_dhcp_agent_config<||> ~> Service['neutron-dhcp-service']
-
- case $dhcp_driver {
- /\.Dnsmasq/: {
- Package[$::neutron::params::dnsmasq_packages] -> Package<| title == 'neutron-dhcp-agent' |>
- ensure_packages($::neutron::params::dnsmasq_packages)
- }
- /^midonet.*/: {
- ensure_packages($::neutron::params::midonet_server_package)
- }
- default: {
- fail("Unsupported dhcp_driver ${dhcp_driver}")
- }
- }
-
- if (! $enable_isolated_metadata) and $enable_metadata_network {
- fail('enable_metadata_network to true requires enable_isolated_metadata also enabled.')
- } else {
- neutron_dhcp_agent_config {
- 'DEFAULT/enable_isolated_metadata': value => $enable_isolated_metadata;
- 'DEFAULT/enable_metadata_network': value => $enable_metadata_network;
- }
- }
-
- # The DHCP agent loads both neutron.ini and its own file.
- # This only lists config specific to the agent. neutron.ini supplies
- # the rest.
- neutron_dhcp_agent_config {
- 'DEFAULT/debug': value => $debug;
- 'DEFAULT/state_path': value => $state_path;
- 'DEFAULT/resync_interval': value => $resync_interval;
- 'DEFAULT/interface_driver': value => $interface_driver;
- 'DEFAULT/dhcp_driver': value => $dhcp_driver;
- 'DEFAULT/use_namespaces': value => $use_namespaces;
- 'DEFAULT/root_helper': value => $root_helper;
- 'DEFAULT/dhcp_delete_namespaces': value => $dhcp_delete_namespaces;
- }
-
- if $dnsmasq_config_file {
- neutron_dhcp_agent_config {
- 'DEFAULT/dnsmasq_config_file': value => $dnsmasq_config_file;
- }
- } else {
- neutron_dhcp_agent_config {
- 'DEFAULT/dnsmasq_config_file': ensure => absent;
- }
- }
-
- if $::neutron::params::dhcp_agent_package {
- Package['neutron'] -> Package['neutron-dhcp-agent']
- Package['neutron-dhcp-agent'] -> Neutron_config<||>
- Package['neutron-dhcp-agent'] -> Neutron_dhcp_agent_config<||>
- package { 'neutron-dhcp-agent':
- ensure => $package_ensure,
- name => $::neutron::params::dhcp_agent_package,
- }
- } else {
- # Some platforms (RedHat) do not provide a neutron DHCP agent package.
- # The neutron DHCP agent config file is provided by the neutron package.
- Package['neutron'] -> Neutron_dhcp_agent_config<||>
- }
-
- if $manage_service {
- if $enabled {
- $service_ensure = 'running'
- } else {
- $service_ensure = 'stopped'
- }
- }
-
- service { 'neutron-dhcp-service':
- ensure => $service_ensure,
- name => $::neutron::params::dhcp_agent_service,
- enable => $enabled,
- require => Class['neutron'],
- }
-}