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Revert "cloudinit: avoid unsafe write of VM config"

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This reverts commit b137c30c3a.

In preparation of fixing the special:cloudinig section.
This commit is contained in:
Wolfgang Bumiller 2022-11-16 18:14:03 +01:00 committed by Thomas Lamprecht
parent e0e036e1ba
commit 3de134ef4a
2 changed files with 19 additions and 20 deletions
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20
PVE/QemuServer.pm
View File

@ -5020,7 +5020,7 @@ sub vmconfig_hotplug_pending {
# some changes can be done without hotplug # some changes can be done without hotplug
my $drive = parse_drive($opt, $value); my $drive = parse_drive($opt, $value);
if (drive_is_cloudinit($drive)) { if (drive_is_cloudinit($drive)) {
$conf->{cloudinit} = PVE::QemuServer::Cloudinit::generate_cloudinitconfig($conf, $vmid); PVE::QemuServer::Cloudinit::generate_cloudinitconfig($conf, $vmid);
} }
vmconfig_update_disk($storecfg, $conf, $hotplug_features->{disk}, vmconfig_update_disk($storecfg, $conf, $hotplug_features->{disk},
$vmid, $opt, $value, $arch, $machine_type); $vmid, $opt, $value, $arch, $machine_type);
@ -5062,7 +5062,7 @@ sub vmconfig_hotplug_pending {
PVE::QemuConfig->write_config($vmid, $conf); PVE::QemuConfig->write_config($vmid, $conf);
if ($hotplug_features->{cloudinit}) { if($hotplug_features->{cloudinit}) {
my $pending = PVE::QemuServer::Cloudinit::get_pending_config($conf, $vmid); my $pending = PVE::QemuServer::Cloudinit::get_pending_config($conf, $vmid);
my $regenerate = undef; my $regenerate = undef;
for my $item (@$pending) { for my $item (@$pending) {
@ -5169,11 +5169,9 @@ sub vmconfig_apply_pending {
} }
} }
$conf->{cloudinit} = PVE::QemuServer::Cloudinit::generate_cloudinitconfig($conf, $vmid)
if $generate_cloudnit;
# write all changes at once to avoid unnecessary i/o # write all changes at once to avoid unnecessary i/o
PVE::QemuConfig->write_config($vmid, $conf); PVE::QemuConfig->write_config($vmid, $conf);
PVE::QemuServer::Cloudinit::generate_cloudinitconfig($conf, $vmid) if $generate_cloudnit;
} }
sub vmconfig_update_net { sub vmconfig_update_net {
@ -5377,8 +5375,7 @@ sub vmconfig_update_cloudinit_drive {
return if !$cloudinit_drive; return if !$cloudinit_drive;
$conf->{cloudinit} = PVE::QemuServer::Cloudinit::generate_cloudinitconfig($conf, $vmid); PVE::QemuServer::Cloudinit::generate_cloudinitconfig($conf, $vmid);
# FIXME: write out changed config here? needs to be sure that config is locked though!
my $running = PVE::QemuServer::check_running($vmid); my $running = PVE::QemuServer::check_running($vmid);
if ($running) { if ($running) {
@ -5560,13 +5557,12 @@ sub vm_start_nolock {
if (!$statefile && scalar(keys %{$conf->{pending}})) { if (!$statefile && scalar(keys %{$conf->{pending}})) {
vmconfig_apply_pending($vmid, $conf, $storecfg); vmconfig_apply_pending($vmid, $conf, $storecfg);
$conf = PVE::QemuConfig->load_config($vmid); # update/reload $conf = PVE::QemuConfig->load_config($vmid); # update/reload
} elsif (!$migratedfrom) {
# don't regenerate the ISO if the VM is started as part of a live migration
# this way we can reuse the old ISO with the correct config
$conf->{cloudinit} = PVE::QemuServer::Cloudinit::generate_cloudinitconfig($conf, $vmid);
# FIXME: write out changed config here? if any changes
} }
# don't regenerate the ISO if the VM is started as part of a live migration
# this way we can reuse the old ISO with the correct config
PVE::QemuServer::Cloudinit::generate_cloudinitconfig($conf, $vmid) if !$migratedfrom;
# override offline migrated volumes, conf is out of date still # override offline migrated volumes, conf is out of date still
if (my $offline_volumes = $migrate_opts->{offline_volumes}) { if (my $offline_volumes = $migrate_opts->{offline_volumes}) {
for my $key (sort keys $offline_volumes->%*) { for my $key (sort keys $offline_volumes->%*) {

19
PVE/QemuServer/Cloudinit.pm
View File

@ -566,6 +566,7 @@ sub generate_cloudinitconfig {
PVE::QemuConfig->foreach_volume($conf, sub { PVE::QemuConfig->foreach_volume($conf, sub {
my ($ds, $drive) = @_; my ($ds, $drive) = @_;
my ($storeid, $volname) = PVE::Storage::parse_volume_id($drive->{file}, 1); my ($storeid, $volname) = PVE::Storage::parse_volume_id($drive->{file}, 1);
return if !$volname || $volname !~ m/vm-$vmid-cloudinit/; return if !$volname || $volname !~ m/vm-$vmid-cloudinit/;
@ -576,34 +577,36 @@ sub generate_cloudinitconfig {
$generator->($conf, $vmid, $drive, $volname, $storeid); $generator->($conf, $vmid, $drive, $volname, $storeid);
}); });
my $cloudinit_conf = {}; my $cloudinitconf = delete $conf->{cloudinit};
$cloudinitconf = {};
my @cloudinit_opts = keys %{PVE::QemuServer::cloudinit_config_properties()}; my @cloudinit_opts = keys %{PVE::QemuServer::cloudinit_config_properties()};
push @cloudinit_opts, 'name'; push @cloudinit_opts, 'name';
for my $opt (@cloudinit_opts) { for my $opt (@cloudinit_opts) {
if ($opt =~ m/^ipconfig(\d+)/) { if ($opt =~ m/^ipconfig(\d+)/) {
my $netid = "net$1"; my $netid = "net$1";
next if !defined($conf->{$netid}); next if !defined($conf->{$netid});
$cloudinit_conf->{$netid} = $conf->{$netid}; $conf->{cloudinit}->{$netid} = $conf->{$netid};
} }
$cloudinit_conf->{$opt} = $conf->{$opt} if $conf->{$opt}; $conf->{cloudinit}->{$opt} = $conf->{$opt} if $conf->{$opt};
} }
my $has_cloudinit_drive = 0; $conf->{cloudinit}->{name} = "VM$vmid" if !$conf->{cloudinit}->{name};
for my $opt (keys %{$conf}) { for my $opt (keys %{$conf}) {
if (PVE::QemuServer::is_valid_drivename($opt)) { if (PVE::QemuServer::is_valid_drivename($opt)) {
my $drive = PVE::QemuServer::parse_drive($opt, $conf->{$opt}); my $drive = PVE::QemuServer::parse_drive($opt, $conf->{$opt});
if (PVE::QemuServer::drive_is_cloudinit($drive)) { if (PVE::QemuServer::drive_is_cloudinit($drive)) {
$has_cloudinit_drive = 1; $conf->{cloudinit}->{$opt} = $conf->{$opt};
$cloudinit_conf->{$opt} = $conf->{$opt};
} }
} }
} }
$cloudinit_conf->{name} //= "VM$vmid" if $has_cloudinit_drive;
return $cloudinit_conf; PVE::QemuConfig->write_config($vmid, $conf);
} }
sub dump_cloudinit_config { sub dump_cloudinit_config {