OpenStack Nova Puppet Module
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# == Class: nova::compute::libvirt
#
# Install and manage nova-compute guests managed
# by libvirt
#
# === Parameters:
#
# [*ensure_package*]
# (optional) The state of nova packages
# Defaults to 'present'
#
# [*virt_type*]
# (optional) Libvirt domain type. Options are: kvm, lxc, qemu, uml, xen
# Defaults to 'kvm'
#
# [*vncserver_listen*]
# (optional) IP address on which instance vncservers should listen
# Defaults to '127.0.0.1'
#
# [*migration_support*]
# (optional) Whether to support virtual machine migration
# Defaults to false
#
# [*cpu_mode*]
# (optional) The libvirt CPU mode to configure. Possible values
# include custom, host-model, none, host-passthrough.
# Defaults to 'host-model' if virt_type is set to kvm,
# otherwise defaults to 'none'.
#
# [*cpu_models*]
# (optional) The named libvirt CPU models (see names listed in
# /usr/share/libvirt/cpu_map.xml). Only has effect if
# cpu_mode="custom" and virt_type="kvm|qemu".
# Defaults to []
#
# [*cpu_model_extra_flags*]
# (optional) This allows specifying granular CPU feature flags when
# specifying CPU models. Only has effect if cpu_mode is not set
# to 'none'.
# Defaults to undef
#
# [*snapshot_image_format*]
# (optional) Format to save snapshots to. Some filesystems
# have a preference and only operate on raw or qcow2
# Defaults to $::os_service_default
#
# [*snapshots_directory*]
# (optional) Location where libvirt driver will store snapshots before
# uploading them to image service
# Defaults to $::os_service_default
#
# [*disk_cachemodes*]
# (optional) A list of cachemodes for different disk types, e.g.
# ["file=directsync", "block=none"]
# If an empty list is specified, the disk_cachemodes directive
# will be removed from nova.conf completely.
# Defaults to an empty list
#
# [*hw_disk_discard*]
# (optional) Discard option for nova managed disks. Need Libvirt(1.0.6)
# Qemu1.5 (raw format) Qemu1.6(qcow2 format).
# Defaults to $::os_service_default
#
# [*hw_machine_type*]
# (optional) Option to specify a default machine type per host architecture.
# Defaults to $::os_service_default
#
# [*inject_password*]
# (optional) Inject the admin password at boot time, without an agent.
# Defaults to false
#
# [*inject_key*]
# (optional) Inject the ssh public key at boot time.
# Defaults to false
#
# [*inject_partition*]
# (optional) The partition to inject to : -2 => disable, -1 => inspect
# (libguestfs only), 0 => not partitioned, >0 => partition
# number (integer value)
# Defaults to -2
#
# [*enabled_perf_events*]
# (optional) This is a performance event list which could be used as monitor.
# A string list. For example: ``enabled_perf_events = cmt, mbml, mbmt``
# The supported events list can be found in
# https://libvirt.org/html/libvirt-libvirt-domain.html ,
# which you may need to search key words ``VIR_PERF_PARAM_*``
# Defaults to $::os_service_default
#
# [*libvirt_service_name*]
# (optional) libvirt service name.
# Defaults to $::nova::params::libvirt_service_name
#
# [*virtlock_service_name*]
# (optional) virtlock service name.
# Defaults to $::nova::params::virtlock_service_name
#
# [*virtlog_service_name*]
# (optional) virtlog service name.
# Defaults to $::nova::params::virtlog_service_name
#
# [*compute_driver*]
# (optional) Compute driver.
# Defaults to 'libvirt.LibvirtDriver'
#
# [*preallocate_images*]
# (optional) The image preallocation mode to use.
# Valid values are 'none' or 'space'.
# Defaults to $::os_service_default
#
# [*manage_libvirt_services*]
# (optional) Whether or not deploy Libvirt services.
# In the case of micro-services, set it to False and use
# nova::compute::libvirt::services + hiera to select what
# you actually want to deploy.
# Defaults to true for backward compatibility.
#
# [*rx_queue_size*]
# (optional) virtio-net rx queue size
# Valid values are 256, 512, 1024
# Defaults to $::os_service_default
#
# [*tx_queue_size*]
# (optional) virtio-net tx queue size
# Valid values are 256, 512, 1024
# Defaults to $::os_service_default
#
# [*file_backed_memory*]
# (optional) Available capacity in MiB for file-backed memory.
# Defaults to $::os_service_default
#
# [*volume_use_multipath*]
# (optional) Use multipath connection of the
# iSCSI or FC volume. Volumes can be connected in the
# LibVirt as multipath devices.
# Defaults to $::os_service_default
#
# [*nfs_mount_options*]
# (optional) Mount options passed to the NFS client. See section of the
# nfs man page for details.
# Defaults to $::os_service_default
#
# [*num_pcie_ports*]
# (optional) The number of PCIe ports an instance will get.
# Libvirt allows a custom number of PCIe ports (pcie-root-port controllers) a
# target instance will get. Some will be used by default, rest will be available
# for hotplug use.
# Defaults to $::os_service_default
#
# [*mem_stats_period_seconds*]
# (optional) A number of seconds to memory usage statistics period,
# zero or negative value mean to disable memory usage statistics.
# Defaults to $::os_service_default
#
# [*pmem_namespaces*]
# (optional) Configure persistent memory(pmem) namespaces. These namespaces
# must have been already created on the host. This config option is in the
# following format: "$LABEL:$NSNAME[|$NSNAME][,$LABEL:$NSNAME[|$NSNAME]]"
# $NSNAME is the name of the pmem namespace. $LABEL represents one resource
# class, this is used to generate the resource class name as
# CUSTOM_PMEM_NAMESPACE_$LABEL.
# Defaults to $::os_service_default
#
# [*log_outputs*]
# (optional) Defines log outputs, as specified in
# https://libvirt.org/logging.html
# Defaults to undef
#
# [*log_filters*]
# (optional) Defines a filter to select a different logging level
# for a given category log outputs, as specified in
# https://libvirt.org/logging.html
# Defaults to undef
#
# [*tls_priority*]
# (optional) Override the compile time default TLS priority string. The
# default is usually "NORMAL" unless overridden at build time.
# Only set this if it is desired for libvirt to deviate from
# the global default settings.
# Defaults to undef
#
# [*ovs_timeout*]
# (optional) A timeout for openvswitch calls made by libvirt
# Defaults to undef
#
# [*swtpm_enabled*]
# (optional) Enable emulated Trusted Platform Module (TPM) for guests.
# Defaults to $::os_service_default
#
# [*swtpm_user*]
# (optional) Configure the user that the swtpm binary, used for emulated
# Trusted Platform Module (TPM) functionality, runs as.
# Defaults to $::os_service_default
#
# [*swtpm_group*]
# (optional) Configure the group that the swtpm binary, used for emulated
# Trusted Platform Module (TPM) functionality, runs as.
# Defaults to $::os_service_default
#
# [*max_queues*]
# (optional) The maximum number of virtio queue pairs that can be enabled
# when creating a multiqueue guest. The number of virtio queues allocated
# will be the lesser of the CPUs requested by the guest and the max value
# defined. By default, this value is set to none meaning the legacy limits
# based on the reported kernel major version will be used.
# Defaults to $::os_service_default
#
# DEPRECATED PARAMETERS
#
# [*libvirt_virt_type*]
# (optional) Libvirt domain type. Options are: kvm, lxc, qemu, uml, xen
# Defaults to undef
#
# [*libvirt_cpu_mode*]
# (optional) The libvirt CPU mode to configure. Possible values
# include custom, host-model, none, host-passthrough.
# Defaults to 'host-model' if libvirt_virt_type is set to kvm,
# Defaults to undef
#
# [*libvirt_cpu_model*]
# (optional) The named libvirt CPU model (see names listed in
# /usr/share/libvirt/cpu_map.xml). Only has effect if
# cpu_mode="custom" and virt_type="kvm|qemu".
# Defaults to undef
#
# [*libvirt_cpu_model_extra_flags*]
# (optional) This allows specifying granular CPU feature flags when
# specifying CPU models. Only has effect if cpu_mode is not set
# to 'none'.
# Defaults to undef
#
# [*libvirt_snapshot_image_format*]
# (optional) Format to save snapshots to. Some filesystems
# have a preference and only operate on raw or qcow2
# Defaults to undef
#
# [*libvirt_disk_cachemodes*]
# (optional) A list of cachemodes for different disk types, e.g.
# ["file=directsync", "block=none"]
# If an empty list is specified, the disk_cachemodes directive
# will be removed from nova.conf completely.
# Defaults to undef
#
# [*libvirt_hw_disk_discard*]
# (optional) Discard option for nova managed disks. Need Libvirt(1.0.6)
# Qemu1.5 (raw format) Qemu1.6(qcow2 format).
# Defaults to undef
#
# [*libvirt_hw_machine_type*]
# (optional) Option to specify a default machine type per host architecture.
# Defaults to undef
#
# [*libvirt_inject_password*]
# (optional) Inject the admin password at boot time, without an agent.
# Defaults to undef
#
# [*libvirt_inject_key*]
# (optional) Inject the ssh public key at boot time.
# Defaults to undef
#
# [*libvirt_inject_partition*]
# (optional) The partition to inject to : -2 => disable, -1 => inspect
# (libguestfs only), 0 => not partitioned, >0 => partition
# number (integer value)
# Defaults to -2
# Defaults to undef
#
# [*libvirt_enabled_perf_events*]
# (optional) This is a performance event list which could be used as monitor.
# A string list. For example: ``enabled_perf_events = cmt, mbml, mbmt``
# The supported events list can be found in
# https://libvirt.org/html/libvirt-libvirt-domain.html ,
# which you may need to search key words ``VIR_PERF_PARAM_*``
# Defaults to undef
#
# [*remove_unused_base_images*]
# (optional) Should unused base images be removed?
# If undef is specified, remove the line in nova.conf
# otherwise, use a boolean to remove or not the base images.
# Defaults to undef
#
# [*remove_unused_resized_minimum_age_seconds*]
# (optional) Unused resized base images younger
# than this will not be removed
# If undef is specified, remove the line in nova.conf
# otherwise, use a integer or a string to define after
# how many seconds it will be removed.
# Defaults to undef
#
# [*remove_unused_original_minimum_age_seconds*]
# (optional) Unused unresized base images younger
# than this will not be removed
# If undef is specified, remove the line in nova.conf
# otherwise, use a integer or a string to define after
# how many seconds it will be removed.
# Defaults to undef
#
class nova::compute::libvirt (
$ensure_package = 'present',
$virt_type = 'kvm',
$vncserver_listen = '127.0.0.1',
$migration_support = false,
$cpu_mode = false,
$cpu_models = [],
$cpu_model_extra_flags = undef,
$snapshot_image_format = $::os_service_default,
$snapshots_directory = $::os_service_default,
$disk_cachemodes = [],
$hw_disk_discard = $::os_service_default,
$hw_machine_type = $::os_service_default,
$inject_password = false,
$inject_key = false,
$inject_partition = -2,
$enabled_perf_events = $::os_service_default,
$libvirt_service_name = $::nova::params::libvirt_service_name,
$virtlock_service_name = $::nova::params::virtlock_service_name,
$virtlog_service_name = $::nova::params::virtlog_service_name,
$compute_driver = 'libvirt.LibvirtDriver',
$preallocate_images = $::os_service_default,
$manage_libvirt_services = true,
$rx_queue_size = $::os_service_default,
$tx_queue_size = $::os_service_default,
$file_backed_memory = undef,
$volume_use_multipath = $::os_service_default,
$nfs_mount_options = $::os_service_default,
$num_pcie_ports = $::os_service_default,
$mem_stats_period_seconds = $::os_service_default,
$pmem_namespaces = $::os_service_default,
$swtpm_enabled = $::os_service_default,
$swtpm_user = $::os_service_default,
$swtpm_group = $::os_service_default,
$log_outputs = undef,
$log_filters = undef,
$tls_priority = undef,
$ovs_timeout = undef,
$max_queues = $::os_service_default,
# DEPRECATED PARAMETERS
$libvirt_virt_type = undef,
$libvirt_cpu_mode = undef,
$libvirt_cpu_model = undef,
$libvirt_cpu_model_extra_flags = undef,
$libvirt_snapshot_image_format = undef,
$libvirt_disk_cachemodes = undef,
$libvirt_hw_disk_discard = undef,
$libvirt_hw_machine_type = undef,
$libvirt_inject_password = undef,
$libvirt_inject_key = undef,
$libvirt_inject_partition = undef,
$libvirt_enabled_perf_events = undef,
$remove_unused_base_images = undef,
$remove_unused_resized_minimum_age_seconds = undef,
$remove_unused_original_minimum_age_seconds = undef,
) inherits nova::params {
include nova::deps
include nova::params
if $remove_unused_base_images != undef {
warning('The remove_unused_base_images parameter was deprecated and \
will be removed in a future release. Use the nova::compute::image_cache class')
}
if $remove_unused_resized_minimum_age_seconds != undef {
warning('The remove_unused_resized_minimum_age_seconds parameter was deprecated and \
will be removed in a future release. Use the nova::compute::image_cache class')
}
if $remove_unused_original_minimum_age_seconds != undef {
warning('The remove_unused_original_minimum_age_seconds parameter was deprecated and \
will be removed in a future release. Use the nova::compute::image_cache class')
}
# TODO(tkajinam): Remove this when removing deprecated image cache parameters
include nova::compute::image_cache
# Cleanup deprecated image cache parameters
nova_config {
'DEFAULT/remove_unused_base_images': ensure => 'absent';
'DEFAULT/remove_unused_original_minimum_age_seconds': ensure => 'absent';
'libvirt/remove_unused_resize_minimum_age_seconds': ensure => 'absent';
}
if $libvirt_virt_type != undef {
warning('The libvirt_virt_type parameter was deprecated and will be removed \
in a future release. Use the virt_type parameter instead')
$virt_type_real = $libvirt_virt_type
} else {
$virt_type_real = $virt_type
}
if $libvirt_cpu_mode != undef {
warning('The libvirt_cpu_mode parameter was deprecated and will be removed \
in a future release. Use the cpu_mode parameter instead')
$cpu_mode_real = $libvirt_cpu_mode
} else {
$cpu_mode_real = $cpu_mode
}
if $libvirt_cpu_model_extra_flags != undef {
warning('The libvirt_cpu_model_extra_flags parameter was deprecated and will be removed \
in a future release. Use the cpu_model_extra_flags parameter instead')
$cpu_model_extra_flags_real = $libvirt_cpu_model_extra_flags
} else {
$cpu_model_extra_flags_real = $cpu_model_extra_flags
}
if $libvirt_snapshot_image_format != undef {
warning('The libvirt_snapshot_image_format parameter was deprecated and will be removed \
in a future release. Use the snapshot_image_format parameter instead')
$snapshot_image_format_real = $libvirt_snapshot_image_format
} else {
$snapshot_image_format_real = $snapshot_image_format
}
if $libvirt_disk_cachemodes != undef {
warning('The libvirt_disk_cachemodes parameter was deprecated and will be removed \
in a future release. Use the disk_cachemodes parameter instead')
$disk_cachemodes_real = $libvirt_disk_cachemodes
} else {
$disk_cachemodes_real = $disk_cachemodes
}
if $libvirt_hw_disk_discard != undef {
warning('The libvirt_hw_disk_discard parameter was deprecated and will be removed \
in a future release. Use the hw_disk_discard parameter instead')
$hw_disk_discard_real = $libvirt_hw_disk_discard
} else {
$hw_disk_discard_real = $hw_disk_discard
}
if $libvirt_hw_machine_type != undef {
warning('The libvirt_hw_machine_type parameter was deprecated and will be removed \
in a future release. Use the hw_machine_type parameter instead')
$hw_machine_type_real = $libvirt_hw_machine_type
} else {
$hw_machine_type_real = $hw_machine_type
}
if $libvirt_inject_password != undef {
warning('The libvirt_inject_password parameter was deprecated and will be removed \
in a future release. Use the inject_password parameter instead')
$inject_password_real = $libvirt_inject_password
} else {
$inject_password_real = $inject_password
}
if $libvirt_inject_key != undef {
warning('The libvirt_inject_key parameter was deprecated and will be removed \
in a future release. Use the inject_key parameter instead')
$inject_key_real = $libvirt_inject_key
} else {
$inject_key_real = $inject_key
}
if $libvirt_inject_partition != undef {
warning('The libvirt_inject_partition parameter was deprecated and will be removed \
in a future release. Use the inject_partition parameter instead')
$inject_partition_real = $libvirt_inject_partition
} else {
$inject_partition_real = $inject_partition
}
if $libvirt_enabled_perf_events != undef {
warning('The libvirt_enabled_perf_events parameter was deprecated and will be removed \
in a future release. Use the enabled_perf_events parameter instead')
$enabled_perf_events_real = $libvirt_enabled_perf_events
} else {
$enabled_perf_events_real = $enabled_perf_events
}
# cpu_mode has different defaults depending on hypervisor.
if !$cpu_mode_real {
case $virt_type_real {
'kvm': {
$cpu_mode_default = 'host-model'
}
default: {
$cpu_mode_default = 'none'
}
}
} else {
$cpu_mode_default = $cpu_mode_real
}
if($::osfamily == 'Debian') {
package { "nova-compute-${virt_type_real}":
ensure => $ensure_package,
tag => ['openstack', 'nova-package'],
}
}
if $migration_support {
include nova::migration::libvirt
}
if $log_outputs {
libvirtd_config {
'log_outputs': value => "\"${log_outputs}\"";
}
} else {
libvirtd_config {
'log_outputs': ensure => 'absent';
}
}
if $log_filters {
libvirtd_config {
'log_filters': value => "\"${log_filters}\"";
}
} else {
libvirtd_config {
'log_filters': ensure => 'absent';
}
}
if $tls_priority {
libvirtd_config {
'tls_priority': value => "\"${tls_priority}\"";
}
} else {
libvirtd_config {
'tls_priority': ensure => 'absent';
}
}
if $ovs_timeout {
libvirtd_config {
'ovs_timeout': value => $ovs_timeout;
}
} else {
libvirtd_config {
'ovs_timeout': ensure => 'absent';
}
}
unless $rx_queue_size == $::os_service_default or $rx_queue_size in [256, 512, 1024] {
fail("Invalid rx_queue_size parameter: ${rx_queue_size}")
}
unless $tx_queue_size == $::os_service_default or $tx_queue_size in [256, 512, 1024] {
fail("Invalid_tx_queue_size parameter: ${tx_queue_size}")
}
# manage_libvirt_services is here for backward compatibility to support
# deployments that do not include nova::compute::libvirt::services
#
# If you're using hiera:
# - set nova::compute::libvirt::manage_libvirt_services to false
# - include nova::compute::libvirt::services in your composition layer
# - select which services you want to deploy with
# ::nova::compute::libvirt::services:* parameters.
#
# If you're not using hiera:
# - set nova::compute::libvirt::manage_libvirt_services to true (default).
# - select which services you want to deploy with
# ::nova::compute::libvirt::*_service_name parameters.
if $manage_libvirt_services {
class { 'nova::compute::libvirt::services':
libvirt_service_name => $libvirt_service_name,
virtlock_service_name => $virtlock_service_name,
virtlog_service_name => $virtlog_service_name,
libvirt_virt_type => $virt_type_real,
}
}
nova_config {
'DEFAULT/compute_driver': value => $compute_driver;
'DEFAULT/preallocate_images': value => $preallocate_images;
'vnc/server_listen': value => $vncserver_listen;
'libvirt/virt_type': value => $virt_type_real;
'libvirt/cpu_mode': value => $cpu_mode_default;
'libvirt/snapshot_image_format': value => $snapshot_image_format_real;
'libvirt/snapshots_directory': value => $snapshots_directory;
'libvirt/inject_password': value => $inject_password_real;
'libvirt/inject_key': value => $inject_key_real;
'libvirt/inject_partition': value => $inject_partition_real;
'libvirt/hw_disk_discard': value => $hw_disk_discard_real;
'libvirt/hw_machine_type': value => $hw_machine_type_real;
'libvirt/enabled_perf_events': value => join(any2array($enabled_perf_events_real), ',');
'libvirt/rx_queue_size': value => $rx_queue_size;
'libvirt/tx_queue_size': value => $tx_queue_size;
'libvirt/file_backed_memory': value => $file_backed_memory;
'libvirt/volume_use_multipath': value => $volume_use_multipath;
'libvirt/nfs_mount_options': value => $nfs_mount_options;
'libvirt/num_pcie_ports': value => $num_pcie_ports;
'libvirt/mem_stats_period_seconds': value => $mem_stats_period_seconds;
'libvirt/pmem_namespaces': value => $pmem_namespaces;
'libvirt/swtpm_enabled': value => $swtpm_enabled;
'libvirt/swtpm_user' : value => $swtpm_user;
'libvirt/swtpm_group': value => $swtpm_group;
'libvirt/max_queues': value => $max_queues;
}
if $libvirt_cpu_model != undef {
warning('The libvirt_cpu_model parameter was deprecated an will be removed \
in a future release. Use the cpu_models parameter instead')
validate_legacy(String, 'validate_string', $libvirt_cpu_model)
$cpu_models_real = [$libvirt_cpu_model]
} else {
validate_legacy(Array, 'validate_array', $cpu_models)
$cpu_models_real = $cpu_models
}
# cpu_model param is only valid if cpu_mode=custom
# otherwise it should be commented out
if $cpu_mode_default == 'custom' {
if empty($cpu_models_real){
$cpu_models_value = $::os_service_default
} else {
$cpu_models_value = join($cpu_models_real, ',')
}
} else {
if !empty($cpu_models_real) {
warning('$cpu_models requires that $cpu_mode => "custom" and will be ignored')
}
$cpu_models_value = $::os_service_default
}
nova_config {
'libvirt/cpu_model' : ensure => absent;
'libvirt/cpu_models': value => $cpu_models_value;
}
if $cpu_mode_default != 'none' and $cpu_model_extra_flags_real {
validate_legacy(String, 'validate_string', $cpu_model_extra_flags_real)
nova_config {
'libvirt/cpu_model_extra_flags': value => $cpu_model_extra_flags_real;
}
} else {
nova_config {
'libvirt/cpu_model_extra_flags': ensure => absent;
}
if $cpu_model_extra_flags_real {
warning('$cpu_model_extra_flags requires that $cpu_mode is not set to "none" and will be ignored')
}
}
if size($disk_cachemodes_real) > 0 {
nova_config {
'libvirt/disk_cachemodes': value => join($disk_cachemodes_real, ',');
}
} else {
nova_config {
'libvirt/disk_cachemodes': ensure => absent;
}
}
}