a8e3d482be
This commit adds support for the libvirt live_migration_progress_timeout and live_migration_completion_timeout parameters. These parameters are useful for configuring timeouts for live_migration in cases where the network is slower (e.g. 1GbE) or where the RAM usage is large. In both these cases, timeouts can occur while live migrating using the default libvirt values in nova. Change-Id: Id728b3aa184d4218fcecea4e716e3b644668af85
232 lines
7.5 KiB
Puppet
232 lines
7.5 KiB
Puppet
# == Class: nova::migration::libvirt
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#
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# Sets libvirt config that is required for migration
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#
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# === Parameters:
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#
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# [*use_tls*]
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# (optional) Use tls for remote connections to libvirt
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# Defaults to false
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#
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# [*auth*]
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# (optional) Use this authentication scheme for remote libvirt connections.
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# Valid options are none and sasl.
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# Defaults to 'none'
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#
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# [*live_migration_tunnelled*]
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# (optional) Whether to use tunnelled migration, where migration data is
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# transported over the libvirtd connection.
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# If True, we use the VIR_MIGRATE_TUNNELLED migration flag, avoiding the
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# need to configure the network to allow direct hypervisor to hypervisor
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# communication.
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# If False, use the native transport.
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# If not set, Nova will choose a sensible default based on, for example
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# the availability of native encryption support in the hypervisor.
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# Defaults to $::os_service_default
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#
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# [*live_migration_completion_timeout*]
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# (optional) Time to wait, in seconds, for migration to successfully complete
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# transferring data before aborting the operation. Value is per GiB of guest
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# RAM + disk to be transferred, with lower bound of a minimum of 2 GiB. Set
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# to 0 to disable timeouts.
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# Defaults to $::os_service_default
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#
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# [*live_migration_progress_timeout*]
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# (optional) Time to wait, in seconds, for migration to make forward progress
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# in transferring data before aborting the operation. Set to 0 to disable
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# timeouts.
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# Defaults to $::os_service_default
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#
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# [*override_uuid*]
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# (optional) Set uuid not equal to output from dmidecode (boolean)
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# Defaults to false
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#
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# [*configure_libvirt*]
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# (optional) Whether or not configure libvirt bits.
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# Defaults to true.
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#
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# [*configure_nova*]
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# (optional) Whether or not configure libvirt bits.
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# Defaults to true.
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#
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#DEPRECATED PARAMETERS
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#
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# [*live_migration_flag*]
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# (optional) Migration flags to be set for live migration (string value)
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# Defaults to undef
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#
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# [*block_migration_flag*]
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# (optional) Migration flags to be set for block migration (string value)
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# Defaults to undef
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#
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class nova::migration::libvirt(
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$use_tls = false,
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$auth = 'none',
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$live_migration_tunnelled = $::os_service_default,
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$live_migration_completion_timeout = $::os_service_default,
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$live_migration_progress_timeout = $::os_service_default,
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$override_uuid = false,
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$configure_libvirt = true,
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$configure_nova = true,
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#DEPRECATED PARAMETERS
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$live_migration_flag = undef,
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$block_migration_flag = undef,
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){
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include ::nova::deps
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validate_re($auth, [ '^sasl$', '^none$' ], 'Valid options for auth are none and sasl.')
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if $use_tls {
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$listen_tls = '1'
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$listen_tcp = '0'
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} else {
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$listen_tls = '0'
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$listen_tcp = '1'
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}
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if $live_migration_flag {
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warning('live_migration_flag parameter is deprecated, has no effect and will be removed in a future release.')
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}
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if $block_migration_flag {
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warning('block_migration_flag parameter is deprecated, has no effect and will be removed in a future release.')
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}
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if $configure_nova {
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if $use_tls {
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nova_config {
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'libvirt/live_migration_uri': value => 'qemu+tls://%s/system';
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}
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}
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nova_config {
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'libvirt/live_migration_tunnelled': value => $live_migration_tunnelled;
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'libvirt/live_migration_completion_timeout': value => $live_migration_completion_timeout;
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'libvirt/live_migration_progress_timeout': value => $live_migration_progress_timeout;
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}
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}
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if $configure_libvirt {
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Anchor['nova::config::begin']
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-> File_line<| tag == 'libvirt-file_line'|>
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-> Anchor['nova::config::end']
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File_line<| tag == 'libvirt-file_line' |>
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~> Service['libvirt']
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if $override_uuid {
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if ! $::libvirt_uuid {
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$host_uuid = generate('/bin/cat', '/proc/sys/kernel/random/uuid')
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file { '/etc/libvirt/libvirt_uuid':
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content => $host_uuid,
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require => Package['libvirt'],
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}
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} else {
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$host_uuid = $::libvirt_uuid
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}
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augeas { 'libvirt-conf-uuid':
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context => '/files/etc/libvirt/libvirtd.conf',
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changes => [
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"set host_uuid ${host_uuid}",
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],
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notify => Service['libvirt'],
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require => Package['libvirt'],
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}
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}
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case $::osfamily {
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'RedHat': {
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file_line { '/etc/libvirt/libvirtd.conf listen_tls':
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path => '/etc/libvirt/libvirtd.conf',
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line => "listen_tls = ${listen_tls}",
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match => 'listen_tls =',
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tag => 'libvirt-file_line',
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}
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file_line { '/etc/libvirt/libvirtd.conf listen_tcp':
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path => '/etc/libvirt/libvirtd.conf',
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line => "listen_tcp = ${listen_tcp}",
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match => 'listen_tcp =',
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tag => 'libvirt-file_line',
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}
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if $use_tls {
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file_line { '/etc/libvirt/libvirtd.conf auth_tls':
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path => '/etc/libvirt/libvirtd.conf',
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line => "auth_tls = \"${auth}\"",
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match => 'auth_tls =',
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tag => 'libvirt-file_line',
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}
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} else {
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file_line { '/etc/libvirt/libvirtd.conf auth_tcp':
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path => '/etc/libvirt/libvirtd.conf',
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line => "auth_tcp = \"${auth}\"",
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match => 'auth_tcp =',
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tag => 'libvirt-file_line',
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}
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}
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file_line { '/etc/sysconfig/libvirtd libvirtd args':
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path => '/etc/sysconfig/libvirtd',
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line => 'LIBVIRTD_ARGS="--listen"',
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match => 'LIBVIRTD_ARGS=',
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tag => 'libvirt-file_line',
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}
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}
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'Debian': {
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file_line { '/etc/libvirt/libvirtd.conf listen_tls':
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path => '/etc/libvirt/libvirtd.conf',
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line => "listen_tls = ${listen_tls}",
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match => 'listen_tls =',
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tag => 'libvirt-file_line',
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}
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file_line { '/etc/libvirt/libvirtd.conf listen_tcp':
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path => '/etc/libvirt/libvirtd.conf',
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line => "listen_tcp = ${listen_tcp}",
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match => 'listen_tcp =',
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tag => 'libvirt-file_line',
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}
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if $use_tls {
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file_line { '/etc/libvirt/libvirtd.conf auth_tls':
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path => '/etc/libvirt/libvirtd.conf',
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line => "auth_tls = \"${auth}\"",
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match => 'auth_tls =',
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tag => 'libvirt-file_line',
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}
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} else {
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file_line { '/etc/libvirt/libvirtd.conf auth_tcp':
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path => '/etc/libvirt/libvirtd.conf',
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line => "auth_tcp = \"${auth}\"",
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match => 'auth_tcp =',
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tag => 'libvirt-file_line',
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}
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}
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if $::operatingsystem == 'Ubuntu' and versioncmp($::operatingsystemmajrelease, '16') >= 0 {
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# If systemd is being used then libvirtd is already being launched correctly and
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# adding -d causes a second consecutive start to fail which causes puppet to fail.
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$libvirtd_opts = 'libvirtd_opts="-l"'
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} else {
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$libvirtd_opts = 'libvirtd_opts="-d -l"'
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}
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file_line { "/etc/default/${::nova::compute::libvirt::libvirt_service_name} libvirtd opts":
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path => "/etc/default/${::nova::compute::libvirt::libvirt_service_name}",
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line => $libvirtd_opts,
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match => 'libvirtd_opts=',
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tag => 'libvirt-file_line',
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}
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}
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default: {
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warning("Unsupported osfamily: ${::osfamily}, make sure you are configuring this yourself")
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}
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}
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}
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}
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