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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, parallels
# 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 qemu or kvm,
# otherwise defaults to 'none'.
#
# [*cpu_models*]
# (optional) The named libvirt CPU models (see names listed in
# /usr/share/libvirt/cpu_map.xml). This option requires
# 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
#
# [*cpu_power_management*]
# (optional) Use libvirt to manage CPU cores performance
# Defaults to $::os_service_default
#
# [*cpu_power_management_strategy*]
# (optional) Tuning strategy to reduce CPU power consumption when unused.
# Defaults to $::os_service_default
#
# [*cpu_power_governor_low*]
# (optional) Governor to use in order to reduce CPU power consumption.
# Defaults to $::os_service_default
#
# [*cpu_power_governor_high*]
# (optional) Goernor to use in order to have best CPU performance.
# Defaults to $::os_service_default
#
# [*snapshot_image_format*]
# (optional) Format to save snapshots to. Some filesystems
# have a preference and only operate on raw or qcow2
# Defaults to $facts['os_service_default']
#
# [*snapshots_directory*]
# (optional) Location where libvirt driver will store snapshots before
# uploading them to image service
# Defaults to $facts['os_service_default']
#
# [*disk_cachemodes*]
# (optional) A list of cachemodes for different disk types, e.g.
# ["file=directsync", "block=none"]
# Defaults to $facts['os_service_default']
#
# [*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 $facts['os_service_default']
#
# [*hw_machine_type*]
# (optional) Option to specify a default machine type per host architecture.
# Defaults to $facts['os_service_default']
#
# [*sysinfo_serial*]
# (optional) Option to specify a serial number entry generation method.
# Defaults to $facts['os_service_default']
#
# [*inject_password*]
# (optional) Inject the admin password at boot time, without an agent.
# Defaults to $facts['os_service_default']
#
# [*inject_key*]
# (optional) Inject the ssh public key at boot time.
# Defaults to $facts['os_service_default']
#
# [*inject_partition*]
# (optional) The partition to inject to : -2 => disable, -1 => inspect
# (libguestfs only), 0 => not partitioned, >0 => partition
# number (integer value)
# Defaults to $facts['os_service_default']
#
# [*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 $facts['os_service_default']
#
# [*device_detach_attempts*]
# (optional) Maximum number of attempts the driver tries to detach a device
# in libvirt.
# Defaults to $facts['os_service_default']
#
# [*device_detach_timeout*]
# (optional) Maximum number of seconds the driver waits for the success or
# the failure event from libvirt for a given device detach attempt before
# it re-trigger the detach.
# Defaults to $facts['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 $facts['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 $facts['os_service_default']
#
# [*tx_queue_size*]
# (optional) virtio-net tx queue size
# Valid values are 256, 512, 1024
# Defaults to $facts['os_service_default']
#
# [*file_backed_memory*]
# (optional) Available capacity in MiB for file-backed memory.
# Defaults to $facts['os_service_default']
#
# [*images_type*]
# (optional) VM Images format.
# Valid Values are raw, flat, qcow2, lvm, rbd, ploop, default
# Defaults to $facts['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 $facts['os_service_default']
#
# [*num_volume_scan_tries*]
# (optional) Number of times to scan given storage protocol to find volume.
# Defaults to $facts['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 $facts['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 $facts['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 $facts['os_service_default']
#
# [*pmem_namespaces*]
# (optional) Configure persistent memory(pmem) namespaces. These namespaces
# must have been already created on the host. This config option is in the
# following format: "$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 $facts['os_service_default']
#
# [*swtpm_enabled*]
# (optional) Enable emulated Trusted Platform Module (TPM) for guests.
# Defaults to $facts['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 $facts['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 $facts['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 $facts['os_service_default']
#
# [*num_memory_encrypted_guests*]
# (optional) The maximum number of guests with encrypted memory which can
# run concurrently on this compute host.
# Defaults to $facts['os_service_default']
#
# [*wait_soft_reboot_seconds*]
# (optional) Number of seconds to wait for instance to shut down after soft
# reboot request is made.
# Defaults to $facts['os_service_default']
#
# [*tb_cache_size*]
# (optional) The tb-cache size (in MiB) of each guest VM.
# Defaults to $facts['os_service_default']
#
class nova::compute::libvirt (
$ensure_package = 'present',
Nova::VirtType $virt_type = 'kvm',
$vncserver_listen = '127.0.0.1',
Boolean $migration_support = false,
Optional[Nova::CpuMode] $cpu_mode = undef,
Array[String[1]] $cpu_models = [],
$cpu_model_extra_flags = undef,
$cpu_power_management = $facts['os_service_default'],
$cpu_power_management_strategy = $facts['os_service_default'],
$cpu_power_governor_low = $facts['os_service_default'],
$cpu_power_governor_high = $facts['os_service_default'],
$snapshot_image_format = $facts['os_service_default'],
$snapshots_directory = $facts['os_service_default'],
$disk_cachemodes = $facts['os_service_default'],
$hw_disk_discard = $facts['os_service_default'],
$hw_machine_type = $facts['os_service_default'],
$sysinfo_serial = $facts['os_service_default'],
$inject_password = $facts['os_service_default'],
$inject_key = $facts['os_service_default'],
$inject_partition = $facts['os_service_default'],
$enabled_perf_events = $facts['os_service_default'],
$device_detach_attempts = $facts['os_service_default'],
$device_detach_timeout = $facts['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 = $facts['os_service_default'],
Boolean $manage_libvirt_services = true,
$rx_queue_size = $facts['os_service_default'],
$tx_queue_size = $facts['os_service_default'],
$file_backed_memory = $facts['os_service_default'],
$images_type = $facts['os_service_default'],
$volume_use_multipath = $facts['os_service_default'],
$num_volume_scan_tries = $facts['os_service_default'],
$nfs_mount_options = $facts['os_service_default'],
$num_pcie_ports = $facts['os_service_default'],
$mem_stats_period_seconds = $facts['os_service_default'],
$pmem_namespaces = $facts['os_service_default'],
$swtpm_enabled = $facts['os_service_default'],
$swtpm_user = $facts['os_service_default'],
$swtpm_group = $facts['os_service_default'],
$max_queues = $facts['os_service_default'],
$num_memory_encrypted_guests = $facts['os_service_default'],
$wait_soft_reboot_seconds = $facts['os_service_default'],
$tb_cache_size = $facts['os_service_default'],
) inherits nova::params {
include nova::deps
include nova::params
# cpu_mode has different defaults depending on hypervisor.
if !$cpu_mode {
case $virt_type {
'qemu', 'kvm': {
$cpu_mode_real = 'host-model'
}
default: {
$cpu_mode_real = 'none'
}
}
} else {
if $cpu_mode != 'none' and !($virt_type in ['qemu', 'kvm']) {
fail("\$virt_type = \"${virt_type}\" supports only \$cpu_mode = \"none\"")
}
$cpu_mode_real = $cpu_mode
}
if($facts['os']['family'] == 'Debian') {
package { "nova-compute-${virt_type}":
ensure => $ensure_package,
tag => ['openstack', 'nova-package'],
}
}
if $migration_support {
include nova::migration::libvirt
}
unless $rx_queue_size == $facts['os_service_default'] or $rx_queue_size in [256, 512, 1024] {
fail("Invalid rx_queue_size parameter: ${rx_queue_size}")
}
unless $tx_queue_size == $facts['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,
}
}
if defined('Class[nova::compute::rbd]') {
if $::nova::compute::rbd::ephemeral_storage and $images_type != 'rbd' {
fail('nova::compute::libvirt::images_type should be rbd if rbd ephemeral storage is used.')
}
}
$disk_cachemodes_real = $disk_cachemodes ? {
Hash => join(join_keys_to_values($disk_cachemodes, '='), ','),
default => join(any2array($disk_cachemodes), ','),
}
$hw_machine_type_real = $hw_machine_type ? {
Hash => join(join_keys_to_values($hw_machine_type, '='), ','),
default => join(any2array($hw_machine_type), ','),
}
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;
'libvirt/cpu_mode': value => $cpu_mode_real;
'libvirt/cpu_power_management': value => $cpu_power_management;
'libvirt/cpu_power_management_strategy': value => $cpu_power_management_strategy;
'libvirt/cpu_power_governor_low': value => $cpu_power_governor_low;
'libvirt/cpu_power_governor_high': value => $cpu_power_governor_high;
'libvirt/snapshot_image_format': value => $snapshot_image_format;
'libvirt/snapshots_directory': value => $snapshots_directory;
'libvirt/disk_cachemodes': value => $disk_cachemodes_real;
'libvirt/inject_password': value => $inject_password;
'libvirt/inject_key': value => $inject_key;
'libvirt/inject_partition': value => $inject_partition;
'libvirt/hw_disk_discard': value => $hw_disk_discard;
'libvirt/hw_machine_type': value => $hw_machine_type_real;
'libvirt/sysinfo_serial': value => $sysinfo_serial;
'libvirt/enabled_perf_events': value => join(any2array($enabled_perf_events), ',');
'libvirt/device_detach_attempts': value => $device_detach_attempts;
'libvirt/device_detach_timeout': value => $device_detach_timeout;
'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/images_type': value => $images_type;
'libvirt/volume_use_multipath': value => $volume_use_multipath;
'libvirt/num_volume_scan_tries': value => $num_volume_scan_tries;
'libvirt/nfs_mount_options': value => $nfs_mount_options;
'libvirt/num_pcie_ports': value => $num_pcie_ports;
'libvirt/mem_stats_period_seconds': value => $mem_stats_period_seconds;
'libvirt/pmem_namespaces': value => join(any2array($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;
'libvirt/num_memory_encrypted_guests': value => $num_memory_encrypted_guests;
'libvirt/wait_soft_reboot_seconds': value => $wait_soft_reboot_seconds;
'libvirt/tb_cache_size': value => $tb_cache_size;
}
if !empty($cpu_models) {
if $cpu_mode_real != 'custom' {
fail('$cpu_models requires that $cpu_mode is "custom"')
}
$cpu_models_real = join($cpu_models, ',')
} else {
if $cpu_mode_real == 'custom' {
fail('$cpu_models is required when $cpu_mode is "custom"')
}
$cpu_models_real = $facts['os_service_default']
}
nova_config {
'libvirt/cpu_models': value => $cpu_models_real;
}
# cpu_model_extra_flags is only valid if cpu_mode!=none
# otherwise it should be commented out
if $cpu_mode_real != 'none' and $cpu_model_extra_flags {
$cpu_model_extra_flags_real = join(any2array($cpu_model_extra_flags), ',')
} else {
if $cpu_model_extra_flags {
warning('$cpu_model_extra_flags requires that $cpu_mode is not set to "none" and will be ignored')
}
$cpu_model_extra_flags_real = $facts['os_service_default']
}
nova_config {
'libvirt/cpu_model_extra_flags': value => $cpu_model_extra_flags_real;
}
}
|
