Puppet Class: nova::compute::libvirt::qemu

Inherits:
nova::compute::libvirt::version
Defined in:
manifests/compute/libvirt/qemu.pp

Overview

Class: nova::compute::libvirt::qemu

Configures qemu limits for use by libvirt

Parameters:

configure_qemu

(optional) Whether or not configure qemu bits. Defaults to false.

user

(optional) User for qemu processes run by the system instance. Defaults to undef.

group

(optional) Group under which the qemu should run. Defaults to undef.

max_files

(optional) Maximum number of opened files, per process. Defaults to 1024.

max_processes

(optional) Maximum number of processes that can be run by qemu user. Defaults to 4096.

vnc_tls

(optional) Enables TLS for vnc connections. Defaults to false.

vnc_tls_verify

(optional) Enables TLS client cert verification when vnc_tls is enabled. Defaults to true.

default_tls_verify

(optional) Enables TLS client cert verification. Defaults to true.

memory_backing_dir

(optional) This directory is used for memoryBacking source if configured as file. NOTE: big files will be stored here Defaults to undef.

nbd_tls

(optional) Enables TLS for nbd connections. Defaults to false.

libvirt_version

(optional) installed libvirt version. Default is automatic detected depending of the used OS installed via $::nova::compute::libvirt::version::default . Defaults to $::nova::compute::libvirt::version::default

Parameters:

  • configure_qemu (Boolean) (defaults to: false)
  • user (Any) (defaults to: undef)
  • group (Any) (defaults to: undef)
  • max_files (Any) (defaults to: 1024)
  • max_processes (Any) (defaults to: 4096)
  • vnc_tls (Boolean) (defaults to: false)
  • vnc_tls_verify (Boolean) (defaults to: true)
  • default_tls_verify (Boolean) (defaults to: true)
  • memory_backing_dir (Any) (defaults to: undef)
  • nbd_tls (Boolean) (defaults to: false)
  • libvirt_version (Any) (defaults to: $::nova::compute::libvirt::version::default) 


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# File 'manifests/compute/libvirt/qemu.pp', line 53

class nova::compute::libvirt::qemu(
  Boolean $configure_qemu     = false,
  $user                       = undef,
  $group                      = undef,
  $max_files                  = 1024,
  $max_processes              = 4096,
  Boolean $vnc_tls            = false,
  Boolean $vnc_tls_verify     = true,
  Boolean $default_tls_verify = true,
  $memory_backing_dir         = undef,
  Boolean $nbd_tls            = false,
  $libvirt_version            = $::nova::compute::libvirt::version::default,
) inherits nova::compute::libvirt::version {

  include nova::deps

  if versioncmp($libvirt_version, '4.5') < 0 {
    fail('libvirt version < 4.5 is no longer supported')
  }

  Qemu_config<||> ~> Service<| tag == 'libvirt-qemu-service' |>

  if $configure_qemu {

    if $vnc_tls {
      $vnc_tls_verify_real = $vnc_tls_verify
    } else {
      $vnc_tls_verify_real = false
    }

    qemu_config {
      'max_files':               value => $max_files;
      'max_processes':           value => $max_processes;
      'vnc_tls':                 value => $vnc_tls;
      'vnc_tls_x509_verify':     value => $vnc_tls_verify_real;
      'default_tls_x509_verify': value => $default_tls_verify;
    }

    if $user and !empty($user) {
      qemu_config { 'user': value => $user, quote =>true }
    } else {
      qemu_config { 'user': ensure => absent }
    }

    if $group and !empty($group) {
      qemu_config { 'group': value => $group, quote =>true }
    } else {
      qemu_config { 'group': ensure => absent }
    }

    if $memory_backing_dir and !empty($memory_backing_dir) {
      qemu_config { 'memory_backing_dir': value => $memory_backing_dir, quote =>true }
    } else {
      qemu_config { 'memory_backing_dir': ensure => absent }
    }

    qemu_config { 'nbd_tls': value => $nbd_tls }

  } else {
    qemu_config {
      'max_files':               ensure => absent;
      'max_processes':           ensure => absent;
      'vnc_tls':                 ensure => absent;
      'vnc_tls_x509_verify':     ensure => absent;
      'default_tls_x509_verify': ensure => absent;
      'user':                    ensure => absent;
      'group':                   ensure => absent;
      'memory_backing_dir':      ensure => absent;
      'nbd_tls':                 ensure => absent;
    }
  }
}