1 package PVE
::LXC
::Config
;
6 use PVE
::AbstractConfig
;
7 use PVE
::Cluster
qw(cfs_register_file);
10 use PVE
::JSONSchema
qw(get_standard_option);
13 use base
qw(PVE::AbstractConfig);
15 my $nodename = PVE
::INotify
::nodename
();
16 my $lock_handles = {};
17 my $lockdir = "/run/lock/lxc";
19 mkdir "/etc/pve/nodes/$nodename/lxc";
20 my $MAX_MOUNT_POINTS = 256;
21 my $MAX_UNUSED_DISKS = $MAX_MOUNT_POINTS;
23 # BEGIN implemented abstract methods from PVE::AbstractConfig
29 sub __config_max_unused_disks
{
32 return $MAX_UNUSED_DISKS;
35 sub config_file_lock
{
36 my ($class, $vmid) = @_;
38 return "$lockdir/pve-config-${vmid}.lock";
42 my ($class, $vmid, $node) = @_;
44 $node = $nodename if !$node;
45 return "nodes/$node/lxc/$vmid.conf";
48 sub mountpoint_backup_enabled
{
49 my ($class, $mp_key, $mountpoint) = @_;
51 return 1 if $mp_key eq 'rootfs';
53 return 0 if $mountpoint->{type
} ne 'volume';
55 return 1 if $mountpoint->{backup
};
61 my ($class, $feature, $conf, $storecfg, $snapname, $running, $backup_only) = @_;
64 $class->foreach_mountpoint($conf, sub {
65 my ($ms, $mountpoint) = @_;
67 return if $err; # skip further test
68 return if $backup_only && !$class->mountpoint_backup_enabled($ms, $mountpoint);
71 if !PVE
::Storage
::volume_has_feature
($storecfg, $feature,
72 $mountpoint->{volume
},
79 sub __snapshot_save_vmstate
{
80 my ($class, $vmid, $conf, $snapname, $storecfg) = @_;
81 die "implement me - snapshot_save_vmstate\n";
84 sub __snapshot_check_running
{
85 my ($class, $vmid) = @_;
86 return PVE
::LXC
::check_running
($vmid);
89 sub __snapshot_check_freeze_needed
{
90 my ($class, $vmid, $config, $save_vmstate) = @_;
92 my $ret = $class->__snapshot_check_running($vmid);
96 sub __snapshot_freeze
{
97 my ($class, $vmid, $unfreeze) = @_;
100 eval { PVE
::Tools
::run_command
(['/usr/bin/lxc-unfreeze', '-n', $vmid]); };
103 PVE
::Tools
::run_command
(['/usr/bin/lxc-freeze', '-n', $vmid]);
104 PVE
::LXC
::sync_container_namespace
($vmid);
108 sub __snapshot_create_vol_snapshot
{
109 my ($class, $vmid, $ms, $mountpoint, $snapname) = @_;
111 my $storecfg = PVE
::Storage
::config
();
113 return if $snapname eq 'vzdump' &&
114 !$class->mountpoint_backup_enabled($ms, $mountpoint);
116 PVE
::Storage
::volume_snapshot
($storecfg, $mountpoint->{volume
}, $snapname);
119 sub __snapshot_delete_remove_drive
{
120 my ($class, $snap, $remove_drive) = @_;
122 if ($remove_drive eq 'vmstate') {
123 die "implement me - saving vmstate\n";
125 my $value = $snap->{$remove_drive};
126 my $mountpoint = $remove_drive eq 'rootfs' ?
$class->parse_ct_rootfs($value, 1) : $class->parse_ct_mountpoint($value, 1);
127 delete $snap->{$remove_drive};
129 $class->add_unused_volume($snap, $mountpoint->{volume
})
130 if ($mountpoint->{type
} eq 'volume');
134 sub __snapshot_delete_vmstate_file
{
135 my ($class, $snap, $force) = @_;
137 die "implement me - saving vmstate\n";
140 sub __snapshot_delete_vol_snapshot
{
141 my ($class, $vmid, $ms, $mountpoint, $snapname, $unused) = @_;
143 return if $snapname eq 'vzdump' &&
144 !$class->mountpoint_backup_enabled($ms, $mountpoint);
146 my $storecfg = PVE
::Storage
::config
();
147 PVE
::Storage
::volume_snapshot_delete
($storecfg, $mountpoint->{volume
}, $snapname);
148 push @$unused, $mountpoint->{volume
};
151 sub __snapshot_rollback_vol_possible
{
152 my ($class, $mountpoint, $snapname) = @_;
154 my $storecfg = PVE
::Storage
::config
();
155 PVE
::Storage
::volume_rollback_is_possible
($storecfg, $mountpoint->{volume
}, $snapname);
158 sub __snapshot_rollback_vol_rollback
{
159 my ($class, $mountpoint, $snapname) = @_;
161 my $storecfg = PVE
::Storage
::config
();
162 PVE
::Storage
::volume_snapshot_rollback
($storecfg, $mountpoint->{volume
}, $snapname);
165 sub __snapshot_rollback_vm_stop
{
166 my ($class, $vmid) = @_;
168 PVE
::LXC
::vm_stop
($vmid, 1)
169 if $class->__snapshot_check_running($vmid);
172 sub __snapshot_rollback_vm_start
{
173 my ($class, $vmid, $vmstate, $data);
175 die "implement me - save vmstate\n";
178 sub __snapshot_rollback_get_unused
{
179 my ($class, $conf, $snap) = @_;
183 $class->__snapshot_foreach_volume($conf, sub {
184 my ($vs, $volume) = @_;
186 return if $volume->{type
} ne 'volume';
189 my $volid = $volume->{volume
};
191 $class->__snapshot_foreach_volume($snap, sub {
192 my ($ms, $mountpoint) = @_;
195 return if ($mountpoint->{type
} ne 'volume');
198 if ($mountpoint->{volume
} && $mountpoint->{volume
} eq $volid);
201 push @$unused, $volid if !$found;
207 sub __snapshot_foreach_volume
{
208 my ($class, $conf, $func) = @_;
210 $class->foreach_mountpoint($conf, $func);
213 # END implemented abstract methods from PVE::AbstractConfig
215 # BEGIN JSON config code
217 cfs_register_file
('/lxc/', \
&parse_pct_config
, \
&write_pct_config
);
220 my $valid_mount_option_re = qr/(noatime|nodev|nosuid|noexec)/;
222 sub is_valid_mount_option
{
224 return $option =~ $valid_mount_option_re;
231 format
=> 'pve-lxc-mp-string',
232 format_description
=> 'volume',
233 description
=> 'Volume, device or directory to mount into the container.',
237 format
=> 'disk-size',
238 format_description
=> 'DiskSize',
239 description
=> 'Volume size (read only value).',
244 description
=> 'Explicitly enable or disable ACL support.',
250 description
=> 'Extra mount options for rootfs/mps.',
251 format_description
=> 'opt[;opt...]',
252 pattern
=> qr/$valid_mount_option_re(;$valid_mount_option_re)*/,
256 description
=> 'Read-only mount point',
261 description
=> 'Enable user quotas inside the container (not supported with zfs subvolumes)',
266 description
=> 'Will include this volume to a storage replica job.',
272 description
=> 'Mark this non-volume mount point as available on multiple nodes (see \'nodes\')',
273 verbose_description
=> "Mark this non-volume mount point as available on all nodes.\n\nWARNING: This option does not share the mount point automatically, it assumes it is shared already!",
279 PVE
::JSONSchema
::register_standard_option
('pve-ct-rootfs', {
280 type
=> 'string', format
=> $rootfs_desc,
281 description
=> "Use volume as container root.",
285 my $features_desc = {
289 description
=> "Allow mounting file systems of specific types."
290 ." This should be a list of file system types as used with the mount command."
291 ." Note that this can have negative effects on the container's security."
292 ." With access to a loop device, mounting a file can circumvent the mknod"
293 ." permission of the devices cgroup, mounting an NFS file system can"
294 ." block the host's I/O completely and prevent it from rebooting, etc.",
295 format_description
=> 'fstype;fstype;...',
296 pattern
=> qr/[a-zA-Z0-9_; ]+/,
302 description
=> "Allow nesting."
303 ." Best used with unprivileged containers with additional id mapping."
304 ." Note that this will expose procfs and sysfs contents of the host"
311 description
=> "For unprivileged containers only: Allow the use of the keyctl() system call."
312 ." This is required to use docker inside a container."
313 ." By default unprivileged containers will see this system call as non-existent."
314 ." This is mostly a workaround for systemd-networkd, as it will treat it as a fatal"
315 ." error when some keyctl() operations are denied by the kernel due to lacking permissions."
316 ." Essentially, you can choose between running systemd-networkd or docker.",
322 description
=> "Allow using 'fuse' file systems in a container."
323 ." Note that interactions between fuse and the freezer cgroup can potentially cause I/O deadlocks.",
331 description
=> "Lock/unlock the VM.",
332 enum
=> [qw(backup create disk fstrim migrate mounted rollback snapshot snapshot-delete)],
337 description
=> "Specifies whether a VM will be started during system bootup.",
340 startup
=> get_standard_option
('pve-startup-order'),
344 description
=> "Enable/disable Template.",
350 enum
=> ['amd64', 'i386', 'arm64', 'armhf'],
351 description
=> "OS architecture type.",
357 enum
=> [qw(debian ubuntu centos fedora opensuse archlinux alpine gentoo unmanaged)],
358 description
=> "OS type. This is used to setup configuration inside the container, and corresponds to lxc setup scripts in /usr/share/lxc/config/<ostype>.common.conf. Value 'unmanaged' can be used to skip and OS specific setup.",
363 description
=> "Attach a console device (/dev/console) to the container.",
369 description
=> "Specify the number of tty available to the container",
377 description
=> "The number of cores assigned to the container. A container can use all available cores by default.",
384 description
=> "Limit of CPU usage.\n\nNOTE: If the computer has 2 CPUs, it has a total of '2' CPU time. Value '0' indicates no CPU limit.",
392 description
=> "CPU weight for a VM. Argument is used in the kernel fair scheduler. The larger the number is, the more CPU time this VM gets. Number is relative to the weights of all the other running VMs.\n\nNOTE: You can disable fair-scheduler configuration by setting this to 0.",
400 description
=> "Amount of RAM for the VM in MB.",
407 description
=> "Amount of SWAP for the VM in MB.",
413 description
=> "Set a host name for the container.",
414 type
=> 'string', format
=> 'dns-name',
420 description
=> "Container description. Only used on the configuration web interface.",
424 type
=> 'string', format
=> 'dns-name-list',
425 description
=> "Sets DNS search domains for a container. Create will automatically use the setting from the host if you neither set searchdomain nor nameserver.",
429 type
=> 'string', format
=> 'address-list',
430 description
=> "Sets DNS server IP address for a container. Create will automatically use the setting from the host if you neither set searchdomain nor nameserver.",
432 rootfs
=> get_standard_option
('pve-ct-rootfs'),
435 type
=> 'string', format
=> 'pve-configid',
437 description
=> "Parent snapshot name. This is used internally, and should not be modified.",
441 description
=> "Timestamp for snapshots.",
447 description
=> "Console mode. By default, the console command tries to open a connection to one of the available tty devices. By setting cmode to 'console' it tries to attach to /dev/console instead. If you set cmode to 'shell', it simply invokes a shell inside the container (no login).",
449 enum
=> ['shell', 'console', 'tty'],
455 description
=> "Sets the protection flag of the container. This will prevent the CT or CT's disk remove/update operation.",
461 description
=> "Makes the container run as unprivileged user. (Should not be modified manually.)",
467 format
=> $features_desc,
468 description
=> "Allow containers access to advanced features.",
473 format
=> 'pve-volume-id',
474 description
=> 'Script that will be exectued during various steps in the containers lifetime.',
478 my $valid_lxc_conf_keys = {
479 'lxc.apparmor.profile' => 1,
480 'lxc.apparmor.allow_incomplete' => 1,
481 'lxc.apparmor.allow_nesting' => 1,
482 'lxc.apparmor.raw' => 1,
483 'lxc.selinux.context' => 1,
487 'lxc.signal.halt' => 1,
488 'lxc.signal.reboot' => 1,
489 'lxc.signal.stop' => 1,
492 'lxc.console.logfile' => 1,
493 'lxc.console.path' => 1,
495 'lxc.devtty.dir' => 1,
496 'lxc.hook.autodev' => 1,
499 'lxc.mount.fstab' => 1,
500 'lxc.mount.entry' => 1,
501 'lxc.mount.auto' => 1,
502 'lxc.rootfs.path' => 'lxc.rootfs.path is auto generated from rootfs',
503 'lxc.rootfs.mount' => 1,
504 'lxc.rootfs.options' => 'lxc.rootfs.options is not supported' .
505 ', please use mount point options in the "rootfs" key',
511 'lxc.seccomp.profile' => 1,
512 'lxc.seccomp.notify.proxy' => 1,
513 'lxc.seccomp.notify.cookie' => 1,
515 'lxc.hook.pre-start' => 1,
516 'lxc.hook.pre-mount' => 1,
517 'lxc.hook.mount' => 1,
518 'lxc.hook.start' => 1,
519 'lxc.hook.stop' => 1,
520 'lxc.hook.post-stop' => 1,
521 'lxc.hook.clone' => 1,
522 'lxc.hook.destroy' => 1,
523 'lxc.log.level' => 1,
525 'lxc.start.auto' => 1,
526 'lxc.start.delay' => 1,
527 'lxc.start.order' => 1,
529 'lxc.environment' => 1,
531 # All these are namespaced via CLONE_NEWIPC (see namespaces(7)).
532 'lxc.sysctl.fs.mqueue' => 1,
533 'lxc.sysctl.kernel.msgmax' => 1,
534 'lxc.sysctl.kernel.msgmnb' => 1,
535 'lxc.sysctl.kernel.msgmni' => 1,
536 'lxc.sysctl.kernel.sem' => 1,
537 'lxc.sysctl.kernel.shmall' => 1,
538 'lxc.sysctl.kernel.shmmax' => 1,
539 'lxc.sysctl.kernel.shmmni' => 1,
540 'lxc.sysctl.kernel.shm_rmid_forced' => 1,
543 my $deprecated_lxc_conf_keys = {
544 # Deprecated (removed with lxc 3.0):
545 'lxc.aa_profile' => 'lxc.apparmor.profile',
546 'lxc.aa_allow_incomplete' => 'lxc.apparmor.allow_incomplete',
547 'lxc.console' => 'lxc.console.path',
548 'lxc.devttydir' => 'lxc.tty.dir',
549 'lxc.haltsignal' => 'lxc.signal.halt',
550 'lxc.rebootsignal' => 'lxc.signal.reboot',
551 'lxc.stopsignal' => 'lxc.signal.stop',
552 'lxc.id_map' => 'lxc.idmap',
553 'lxc.init_cmd' => 'lxc.init.cmd',
554 'lxc.loglevel' => 'lxc.log.level',
555 'lxc.logfile' => 'lxc.log.file',
556 'lxc.mount' => 'lxc.mount.fstab',
557 'lxc.network.type' => 'lxc.net.INDEX.type',
558 'lxc.network.flags' => 'lxc.net.INDEX.flags',
559 'lxc.network.link' => 'lxc.net.INDEX.link',
560 'lxc.network.mtu' => 'lxc.net.INDEX.mtu',
561 'lxc.network.name' => 'lxc.net.INDEX.name',
562 'lxc.network.hwaddr' => 'lxc.net.INDEX.hwaddr',
563 'lxc.network.ipv4' => 'lxc.net.INDEX.ipv4.address',
564 'lxc.network.ipv4.gateway' => 'lxc.net.INDEX.ipv4.gateway',
565 'lxc.network.ipv6' => 'lxc.net.INDEX.ipv6.address',
566 'lxc.network.ipv6.gateway' => 'lxc.net.INDEX.ipv6.gateway',
567 'lxc.network.script.up' => 'lxc.net.INDEX.script.up',
568 'lxc.network.script.down' => 'lxc.net.INDEX.script.down',
569 'lxc.pts' => 'lxc.pty.max',
570 'lxc.se_context' => 'lxc.selinux.context',
571 'lxc.seccomp' => 'lxc.seccomp.profile',
572 'lxc.tty' => 'lxc.tty.max',
573 'lxc.utsname' => 'lxc.uts.name',
576 sub is_valid_lxc_conf_key
{
577 my ($vmid, $key) = @_;
578 if ($key =~ /^lxc\.limit\./) {
579 warn "vm $vmid - $key: lxc.limit.* was renamed to lxc.prlimit.*\n";
582 if (defined(my $new_name = $deprecated_lxc_conf_keys->{$key})) {
583 warn "vm $vmid - $key is deprecated and was renamed to $new_name\n";
586 my $validity = $valid_lxc_conf_keys->{$key};
587 return $validity if defined($validity);
588 return 1 if $key =~ /^lxc\.cgroup\./ # allow all cgroup values
589 || $key =~ /^lxc\.prlimit\./ # allow all prlimits
590 || $key =~ /^lxc\.net\./; # allow custom network definitions
594 our $netconf_desc = {
598 description
=> "Network interface type.",
603 format_description
=> 'string',
604 description
=> 'Name of the network device as seen from inside the container. (lxc.network.name)',
605 pattern
=> '[-_.\w\d]+',
609 format_description
=> 'bridge',
610 description
=> 'Bridge to attach the network device to.',
611 pattern
=> '[-_.\w\d]+',
614 hwaddr
=> get_standard_option
('mac-addr', {
615 description
=> 'The interface MAC address. This is dynamically allocated by default, but you can set that statically if needed, for example to always have the same link-local IPv6 address. (lxc.network.hwaddr)',
619 description
=> 'Maximum transfer unit of the interface. (lxc.network.mtu)',
620 minimum
=> 64, # minimum ethernet frame is 64 bytes
625 format
=> 'pve-ipv4-config',
626 format_description
=> '(IPv4/CIDR|dhcp|manual)',
627 description
=> 'IPv4 address in CIDR format.',
633 format_description
=> 'GatewayIPv4',
634 description
=> 'Default gateway for IPv4 traffic.',
639 format
=> 'pve-ipv6-config',
640 format_description
=> '(IPv6/CIDR|auto|dhcp|manual)',
641 description
=> 'IPv6 address in CIDR format.',
647 format_description
=> 'GatewayIPv6',
648 description
=> 'Default gateway for IPv6 traffic.',
653 description
=> "Controls whether this interface's firewall rules should be used.",
660 description
=> "VLAN tag for this interface.",
665 pattern
=> qr/\d+(?:;\d+)*/,
666 format_description
=> 'vlanid[;vlanid...]',
667 description
=> "VLAN ids to pass through the interface",
672 format_description
=> 'mbps',
673 description
=> "Apply rate limiting to the interface",
677 PVE
::JSONSchema
::register_format
('pve-lxc-network', $netconf_desc);
679 my $MAX_LXC_NETWORKS = 10;
680 for (my $i = 0; $i < $MAX_LXC_NETWORKS; $i++) {
681 $confdesc->{"net$i"} = {
683 type
=> 'string', format
=> $netconf_desc,
684 description
=> "Specifies network interfaces for the container.",
688 PVE
::JSONSchema
::register_format
('pve-lxc-mp-string', \
&verify_lxc_mp_string
);
689 sub verify_lxc_mp_string
{
690 my ($mp, $noerr) = @_;
694 # /. or /.. at the end
695 # ../ at the beginning
697 if($mp =~ m
@/\.\
.?
/@ ||
700 return undef if $noerr;
701 die "$mp contains illegal character sequences\n";
710 description
=> 'Whether to include the mount point in backups.',
711 verbose_description
=> 'Whether to include the mount point in backups '.
712 '(only used for volume mount points).',
717 format
=> 'pve-lxc-mp-string',
718 format_description
=> 'Path',
719 description
=> 'Path to the mount point as seen from inside the container '.
720 '(must not contain symlinks).',
721 verbose_description
=> "Path to the mount point as seen from inside the container.\n\n".
722 "NOTE: Must not contain any symlinks for security reasons."
725 PVE
::JSONSchema
::register_format
('pve-ct-mountpoint', $mp_desc);
729 type
=> 'string', format
=> 'pve-volume-id',
730 description
=> "Reference to unused volumes. This is used internally, and should not be modified manually.",
733 for (my $i = 0; $i < $MAX_MOUNT_POINTS; $i++) {
734 $confdesc->{"mp$i"} = {
736 type
=> 'string', format
=> $mp_desc,
737 description
=> "Use volume as container mount point.",
742 for (my $i = 0; $i < $MAX_MOUNT_POINTS; $i++) {
743 $confdesc->{"unused$i"} = $unuseddesc;
746 sub parse_pct_config
{
747 my ($filename, $raw) = @_;
749 return undef if !defined($raw);
752 digest
=> Digest
::SHA
::sha1_hex
($raw),
756 $filename =~ m
|/lxc/(\d
+).conf
$|
757 || die "got strange filename '$filename'";
765 my @lines = split(/\n/, $raw);
766 foreach my $line (@lines) {
767 next if $line =~ m/^\s*$/;
769 if ($line =~ m/^\[([a-z][a-z0-9_\-]+)\]\s*$/i) {
771 $conf->{description
} = $descr if $descr;
773 $conf = $res->{snapshots
}->{$section} = {};
777 if ($line =~ m/^\#(.*)\s*$/) {
778 $descr .= PVE
::Tools
::decode_text
($1) . "\n";
782 if ($line =~ m/^(lxc\.[a-z0-9_\-\.]+)(:|\s*=)\s*(.*?)\s*$/) {
785 my $validity = is_valid_lxc_conf_key
($vmid, $key);
786 if ($validity eq 1) {
787 push @{$conf->{lxc
}}, [$key, $value];
788 } elsif (my $errmsg = $validity) {
789 warn "vm $vmid - $key: $errmsg\n";
791 warn "vm $vmid - unable to parse config: $line\n";
793 } elsif ($line =~ m/^(description):\s*(.*\S)\s*$/) {
794 $descr .= PVE
::Tools
::decode_text
($2);
795 } elsif ($line =~ m/snapstate:\s*(prepare|delete)\s*$/) {
796 $conf->{snapstate
} = $1;
797 } elsif ($line =~ m/^([a-z][a-z_]*\d*):\s*(\S.*)\s*$/) {
800 eval { $value = PVE
::LXC
::Config-
>check_type($key, $value); };
801 warn "vm $vmid - unable to parse value of '$key' - $@" if $@;
802 $conf->{$key} = $value;
804 warn "vm $vmid - unable to parse config: $line\n";
808 $conf->{description
} = $descr if $descr;
810 delete $res->{snapstate
}; # just to be sure
815 sub write_pct_config
{
816 my ($filename, $conf) = @_;
818 delete $conf->{snapstate
}; # just to be sure
820 my $volidlist = PVE
::LXC
::Config-
>get_vm_volumes($conf);
821 my $used_volids = {};
822 foreach my $vid (@$volidlist) {
823 $used_volids->{$vid} = 1;
826 # remove 'unusedX' settings if the volume is still used
827 foreach my $key (keys %$conf) {
828 my $value = $conf->{$key};
829 if ($key =~ m/^unused/ && $used_volids->{$value}) {
830 delete $conf->{$key};
834 my $generate_raw_config = sub {
839 # add description as comment to top of file
840 my $descr = $conf->{description
} || '';
841 foreach my $cl (split(/\n/, $descr)) {
842 $raw .= '#' . PVE
::Tools
::encode_text
($cl) . "\n";
845 foreach my $key (sort keys %$conf) {
846 next if $key eq 'digest' || $key eq 'description' ||
847 $key eq 'pending' || $key eq 'snapshots' ||
848 $key eq 'snapname' || $key eq 'lxc';
849 my $value = $conf->{$key};
850 die "detected invalid newline inside property '$key'\n"
852 $raw .= "$key: $value\n";
855 if (my $lxcconf = $conf->{lxc
}) {
856 foreach my $entry (@$lxcconf) {
857 my ($k, $v) = @$entry;
865 my $raw = &$generate_raw_config($conf);
867 foreach my $snapname (sort keys %{$conf->{snapshots
}}) {
868 $raw .= "\n[$snapname]\n";
869 $raw .= &$generate_raw_config($conf->{snapshots
}->{$snapname});
875 sub update_pct_config
{
876 my ($class, $vmid, $conf, $running, $param, $delete) = @_;
885 my $pid = PVE
::LXC
::find_lxc_pid
($vmid);
886 $rootdir = "/proc/$pid/root";
889 my $hotplug_error = sub {
898 if (defined($delete)) {
899 foreach my $opt (@$delete) {
900 if (!exists($conf->{$opt})) {
905 if ($opt eq 'memory' || $opt eq 'rootfs') {
906 die "unable to delete required option '$opt'\n";
907 } elsif ($opt eq 'hostname') {
908 delete $conf->{$opt};
909 } elsif ($opt eq 'swap') {
910 delete $conf->{$opt};
911 PVE
::LXC
::write_cgroup_value
("memory", $vmid,
912 "memory.memsw.limit_in_bytes", -1);
913 } elsif ($opt eq 'description' || $opt eq 'onboot' || $opt eq 'startup' || $opt eq 'hookscript') {
914 delete $conf->{$opt};
915 } elsif ($opt eq 'nameserver' || $opt eq 'searchdomain' ||
916 $opt eq 'tty' || $opt eq 'console' || $opt eq 'cmode') {
917 next if $hotplug_error->($opt);
918 delete $conf->{$opt};
919 } elsif ($opt eq 'cores') {
920 delete $conf->{$opt}; # rest is handled by pvestatd
921 } elsif ($opt eq 'cpulimit') {
922 PVE
::LXC
::write_cgroup_value
("cpu", $vmid, "cpu.cfs_quota_us", -1);
923 delete $conf->{$opt};
924 } elsif ($opt eq 'cpuunits') {
925 PVE
::LXC
::write_cgroup_value
("cpu", $vmid, "cpu.shares", $confdesc->{cpuunits
}->{default});
926 delete $conf->{$opt};
927 } elsif ($opt =~ m/^net(\d)$/) {
928 delete $conf->{$opt};
931 PVE
::Network
::veth_delete
("veth${vmid}i$netid");
932 } elsif ($opt eq 'protection') {
933 delete $conf->{$opt};
934 } elsif ($opt =~ m/^unused(\d+)$/) {
935 next if $hotplug_error->($opt);
936 PVE
::LXC
::Config-
>check_protection($conf, "can't remove CT $vmid drive '$opt'");
937 push @deleted_volumes, $conf->{$opt};
938 delete $conf->{$opt};
939 } elsif ($opt =~ m/^mp(\d+)$/) {
940 next if $hotplug_error->($opt);
941 PVE
::LXC
::Config-
>check_protection($conf, "can't remove CT $vmid drive '$opt'");
942 my $mp = PVE
::LXC
::Config-
>parse_ct_mountpoint($conf->{$opt});
943 delete $conf->{$opt};
944 if ($mp->{type
} eq 'volume') {
945 PVE
::LXC
::Config-
>add_unused_volume($conf, $mp->{volume
});
947 } elsif ($opt eq 'unprivileged') {
948 die "unable to delete read-only option: '$opt'\n";
949 } elsif ($opt eq 'features') {
950 next if $hotplug_error->($opt);
951 delete $conf->{$opt};
953 die "implement me (delete: $opt)"
955 PVE
::LXC
::Config-
>write_config($vmid, $conf) if $running;
959 # There's no separate swap size to configure, there's memory and "total"
960 # memory (iow. memory+swap). This means we have to change them together.
961 my $wanted_memory = PVE
::Tools
::extract_param
($param, 'memory');
962 my $wanted_swap = PVE
::Tools
::extract_param
($param, 'swap');
963 if (defined($wanted_memory) || defined($wanted_swap)) {
965 my $old_memory = ($conf->{memory
} || 512);
966 my $old_swap = ($conf->{swap
} || 0);
968 $wanted_memory //= $old_memory;
969 $wanted_swap //= $old_swap;
971 my $total = $wanted_memory + $wanted_swap;
973 my $old_total = $old_memory + $old_swap;
974 if ($total > $old_total) {
975 PVE
::LXC
::write_cgroup_value
("memory", $vmid,
976 "memory.memsw.limit_in_bytes",
977 int($total*1024*1024));
978 PVE
::LXC
::write_cgroup_value
("memory", $vmid,
979 "memory.limit_in_bytes",
980 int($wanted_memory*1024*1024));
982 PVE
::LXC
::write_cgroup_value
("memory", $vmid,
983 "memory.limit_in_bytes",
984 int($wanted_memory*1024*1024));
985 PVE
::LXC
::write_cgroup_value
("memory", $vmid,
986 "memory.memsw.limit_in_bytes",
987 int($total*1024*1024));
990 $conf->{memory
} = $wanted_memory;
991 $conf->{swap
} = $wanted_swap;
993 PVE
::LXC
::Config-
>write_config($vmid, $conf) if $running;
996 my $storecfg = PVE
::Storage
::config
();
998 my $used_volids = {};
999 my $check_content_type = sub {
1001 my $sid = PVE
::Storage
::parse_volume_id
($mp->{volume
});
1002 my $storage_config = PVE
::Storage
::storage_config
($storecfg, $sid);
1003 die "storage '$sid' does not allow content type 'rootdir' (Container)\n"
1004 if !$storage_config->{content
}->{rootdir
};
1007 my $rescan_volume = sub {
1010 $mp->{size
} = PVE
::Storage
::volume_size_info
($storecfg, $mp->{volume
}, 5)
1011 if !defined($mp->{size
});
1013 warn "Could not rescan volume size - $@\n" if $@;
1016 foreach my $opt (keys %$param) {
1017 my $value = $param->{$opt};
1018 my $check_protection_msg = "can't update CT $vmid drive '$opt'";
1019 if ($opt eq 'hostname' || $opt eq 'arch') {
1020 $conf->{$opt} = $value;
1021 } elsif ($opt eq 'onboot') {
1022 $conf->{$opt} = $value ?
1 : 0;
1023 } elsif ($opt eq 'startup') {
1024 $conf->{$opt} = $value;
1025 } elsif ($opt eq 'tty' || $opt eq 'console' || $opt eq 'cmode') {
1026 next if $hotplug_error->($opt);
1027 $conf->{$opt} = $value;
1028 } elsif ($opt eq 'nameserver') {
1029 next if $hotplug_error->($opt);
1030 my $list = PVE
::LXC
::verify_nameserver_list
($value);
1031 $conf->{$opt} = $list;
1032 } elsif ($opt eq 'searchdomain') {
1033 next if $hotplug_error->($opt);
1034 my $list = PVE
::LXC
::verify_searchdomain_list
($value);
1035 $conf->{$opt} = $list;
1036 } elsif ($opt eq 'cores') {
1037 $conf->{$opt} = $value;# rest is handled by pvestatd
1038 } elsif ($opt eq 'cpulimit') {
1040 PVE
::LXC
::write_cgroup_value
("cpu", $vmid, "cpu.cfs_quota_us", -1);
1042 PVE
::LXC
::write_cgroup_value
("cpu", $vmid, "cpu.cfs_quota_us", int(100000*$value));
1044 $conf->{$opt} = $value;
1045 } elsif ($opt eq 'cpuunits') {
1046 $conf->{$opt} = $value;
1047 PVE
::LXC
::write_cgroup_value
("cpu", $vmid, "cpu.shares", $value);
1048 } elsif ($opt eq 'description') {
1049 $conf->{$opt} = $value;
1050 } elsif ($opt =~ m/^net(\d+)$/) {
1052 my $net = PVE
::LXC
::Config-
>parse_lxc_network($value);
1054 $conf->{$opt} = PVE
::LXC
::Config-
>print_lxc_network($net);
1056 PVE
::LXC
::update_net
($vmid, $conf, $opt, $net, $netid, $rootdir);
1058 } elsif ($opt eq 'protection') {
1059 $conf->{$opt} = $value ?
1 : 0;
1060 } elsif ($opt =~ m/^mp(\d+)$/) {
1061 next if $hotplug_error->($opt);
1062 PVE
::LXC
::Config-
>check_protection($conf, $check_protection_msg);
1063 my $old = $conf->{$opt};
1064 my $mp = PVE
::LXC
::Config-
>parse_ct_mountpoint($value);
1065 if ($mp->{type
} eq 'volume') {
1066 &$check_content_type($mp);
1067 $used_volids->{$mp->{volume
}} = 1;
1068 &$rescan_volume($mp);
1069 $conf->{$opt} = PVE
::LXC
::Config-
>print_ct_mountpoint($mp);
1071 $conf->{$opt} = $value;
1073 if (defined($old)) {
1074 my $mp = PVE
::LXC
::Config-
>parse_ct_mountpoint($old);
1075 if ($mp->{type
} eq 'volume') {
1076 PVE
::LXC
::Config-
>add_unused_volume($conf, $mp->{volume
});
1080 } elsif ($opt eq 'rootfs') {
1081 next if $hotplug_error->($opt);
1082 PVE
::LXC
::Config-
>check_protection($conf, $check_protection_msg);
1083 my $old = $conf->{$opt};
1084 my $mp = PVE
::LXC
::Config-
>parse_ct_rootfs($value);
1085 if ($mp->{type
} eq 'volume') {
1086 &$check_content_type($mp);
1087 $used_volids->{$mp->{volume
}} = 1;
1088 &$rescan_volume($mp);
1089 $conf->{$opt} = PVE
::LXC
::Config-
>print_ct_mountpoint($mp, 1);
1091 $conf->{$opt} = $value;
1093 if (defined($old)) {
1094 my $mp = PVE
::LXC
::Config-
>parse_ct_rootfs($old);
1095 if ($mp->{type
} eq 'volume') {
1096 PVE
::LXC
::Config-
>add_unused_volume($conf, $mp->{volume
});
1100 } elsif ($opt eq 'unprivileged') {
1101 die "unable to modify read-only option: '$opt'\n";
1102 } elsif ($opt eq 'ostype') {
1103 next if $hotplug_error->($opt);
1104 $conf->{$opt} = $value;
1105 } elsif ($opt eq 'features') {
1106 next if $hotplug_error->($opt);
1107 $conf->{$opt} = $value;
1108 } elsif ($opt eq 'hookscript') {
1109 PVE
::GuestHelpers
::check_hookscript
($value);
1110 $conf->{$opt} = $value;
1112 die "implement me: $opt";
1115 PVE
::LXC
::Config-
>write_config($vmid, $conf) if $running;
1118 # Apply deletions and creations of new volumes
1119 if (@deleted_volumes) {
1120 my $storage_cfg = PVE
::Storage
::config
();
1121 foreach my $volume (@deleted_volumes) {
1122 next if $used_volids->{$volume}; # could have been re-added, too
1123 # also check for references in snapshots
1124 next if $class->is_volume_in_use($conf, $volume, 1);
1125 PVE
::LXC
::delete_mountpoint_volume
($storage_cfg, $vmid, $volume);
1130 my $storage_cfg = PVE
::Storage
::config
();
1131 PVE
::LXC
::create_disks
($storage_cfg, $vmid, $conf, $conf);
1134 # This should be the last thing we do here
1135 if ($running && scalar(@nohotplug)) {
1136 die "unable to modify " . join(',', @nohotplug) . " while container is running\n";
1141 my ($class, $key, $value) = @_;
1143 die "unknown setting '$key'\n" if !$confdesc->{$key};
1145 my $type = $confdesc->{$key}->{type
};
1147 if (!defined($value)) {
1148 die "got undefined value\n";
1151 if ($value =~ m/[\n\r]/) {
1152 die "property contains a line feed\n";
1155 if ($type eq 'boolean') {
1156 return 1 if ($value eq '1') || ($value =~ m/^(on|yes|true)$/i);
1157 return 0 if ($value eq '0') || ($value =~ m/^(off|no|false)$/i);
1158 die "type check ('boolean') failed - got '$value'\n";
1159 } elsif ($type eq 'integer') {
1160 return int($1) if $value =~ m/^(\d+)$/;
1161 die "type check ('integer') failed - got '$value'\n";
1162 } elsif ($type eq 'number') {
1163 return $value if $value =~ m/^(\d+)(\.\d+)?$/;
1164 die "type check ('number') failed - got '$value'\n";
1165 } elsif ($type eq 'string') {
1166 if (my $fmt = $confdesc->{$key}->{format
}) {
1167 PVE
::JSONSchema
::check_format
($fmt, $value);
1172 die "internal error"
1177 # add JSON properties for create and set function
1178 sub json_config_properties
{
1179 my ($class, $prop) = @_;
1181 foreach my $opt (keys %$confdesc) {
1182 next if $opt eq 'parent' || $opt eq 'snaptime';
1183 next if $prop->{$opt};
1184 $prop->{$opt} = $confdesc->{$opt};
1190 sub __parse_ct_mountpoint_full
{
1191 my ($class, $desc, $data, $noerr) = @_;
1196 eval { $res = PVE
::JSONSchema
::parse_property_string
($desc, $data) };
1198 return undef if $noerr;
1202 if (defined(my $size = $res->{size
})) {
1203 $size = PVE
::JSONSchema
::parse_size
($size);
1204 if (!defined($size)) {
1205 return undef if $noerr;
1206 die "invalid size: $size\n";
1208 $res->{size
} = $size;
1211 $res->{type
} = $class->classify_mountpoint($res->{volume
});
1216 sub parse_ct_rootfs
{
1217 my ($class, $data, $noerr) = @_;
1219 my $res = $class->__parse_ct_mountpoint_full($rootfs_desc, $data, $noerr);
1221 $res->{mp
} = '/' if defined($res);
1226 sub parse_ct_mountpoint
{
1227 my ($class, $data, $noerr) = @_;
1229 return $class->__parse_ct_mountpoint_full($mp_desc, $data, $noerr);
1232 sub print_ct_mountpoint
{
1233 my ($class, $info, $nomp) = @_;
1234 my $skip = [ 'type' ];
1235 push @$skip, 'mp' if $nomp;
1236 return PVE
::JSONSchema
::print_property_string
($info, $mp_desc, $skip);
1239 sub print_lxc_network
{
1240 my ($class, $net) = @_;
1241 return PVE
::JSONSchema
::print_property_string
($net, $netconf_desc);
1244 sub parse_lxc_network
{
1245 my ($class, $data) = @_;
1249 return $res if !$data;
1251 $res = PVE
::JSONSchema
::parse_property_string
($netconf_desc, $data);
1253 $res->{type
} = 'veth';
1254 if (!$res->{hwaddr
}) {
1255 my $dc = PVE
::Cluster
::cfs_read_file
('datacenter.cfg');
1256 $res->{hwaddr
} = PVE
::Tools
::random_ether_addr
($dc->{mac_prefix
});
1262 sub parse_features
{
1263 my ($class, $data) = @_;
1264 return {} if !$data;
1265 return PVE
::JSONSchema
::parse_property_string
($features_desc, $data);
1269 my ($class, $name) = @_;
1271 return defined($confdesc->{$name});
1273 # END JSON config code
1275 sub classify_mountpoint
{
1276 my ($class, $vol) = @_;
1277 if ($vol =~ m!^/!) {
1278 return 'device' if $vol =~ m!^/dev/!;
1284 my $is_volume_in_use = sub {
1285 my ($class, $config, $volid) = @_;
1288 $class->foreach_mountpoint($config, sub {
1289 my ($ms, $mountpoint) = @_;
1291 $used = $mountpoint->{type
} eq 'volume' && $mountpoint->{volume
} eq $volid;
1297 sub is_volume_in_use_by_snapshots
{
1298 my ($class, $config, $volid) = @_;
1300 if (my $snapshots = $config->{snapshots
}) {
1301 foreach my $snap (keys %$snapshots) {
1302 return 1 if $is_volume_in_use->($class, $snapshots->{$snap}, $volid);
1309 sub is_volume_in_use
{
1310 my ($class, $config, $volid, $include_snapshots) = @_;
1311 return 1 if $is_volume_in_use->($class, $config, $volid);
1312 return 1 if $include_snapshots && $class->is_volume_in_use_by_snapshots($config, $volid);
1316 sub has_dev_console
{
1317 my ($class, $conf) = @_;
1319 return !(defined($conf->{console
}) && !$conf->{console
});
1323 my ($class, $conf, $keyname) = @_;
1325 if (my $lxcconf = $conf->{lxc
}) {
1326 foreach my $entry (@$lxcconf) {
1327 my ($key, undef) = @$entry;
1328 return 1 if $key eq $keyname;
1336 my ($class, $conf) = @_;
1338 return $conf->{tty
} // $confdesc->{tty
}->{default};
1342 my ($class, $conf) = @_;
1344 return $conf->{cmode
} // $confdesc->{cmode
}->{default};
1347 sub mountpoint_names
{
1348 my ($class, $reverse) = @_;
1350 my @names = ('rootfs');
1352 for (my $i = 0; $i < $MAX_MOUNT_POINTS; $i++) {
1353 push @names, "mp$i";
1356 return $reverse ?
reverse @names : @names;
1359 sub foreach_mountpoint_full
{
1360 my ($class, $conf, $reverse, $func, @param) = @_;
1362 my $mps = [ grep { defined($conf->{$_}) } $class->mountpoint_names($reverse) ];
1363 foreach my $key (@$mps) {
1364 my $value = $conf->{$key};
1365 my $mountpoint = $key eq 'rootfs' ?
$class->parse_ct_rootfs($value, 1) : $class->parse_ct_mountpoint($value, 1);
1366 next if !defined($mountpoint);
1368 &$func($key, $mountpoint, @param);
1372 sub foreach_mountpoint
{
1373 my ($class, $conf, $func, @param) = @_;
1375 $class->foreach_mountpoint_full($conf, 0, $func, @param);
1378 sub foreach_mountpoint_reverse
{
1379 my ($class, $conf, $func, @param) = @_;
1381 $class->foreach_mountpoint_full($conf, 1, $func, @param);
1384 sub get_vm_volumes
{
1385 my ($class, $conf, $excludes) = @_;
1389 $class->foreach_mountpoint($conf, sub {
1390 my ($ms, $mountpoint) = @_;
1392 return if $excludes && $ms eq $excludes;
1394 my $volid = $mountpoint->{volume
};
1395 return if !$volid || $mountpoint->{type
} ne 'volume';
1397 my ($sid, $volname) = PVE
::Storage
::parse_volume_id
($volid, 1);
1400 push @$vollist, $volid;
1406 sub get_replicatable_volumes
{
1407 my ($class, $storecfg, $vmid, $conf, $cleanup, $noerr) = @_;
1411 my $test_volid = sub {
1412 my ($volid, $mountpoint) = @_;
1416 my $mptype = $mountpoint->{type
};
1417 my $replicate = $mountpoint->{replicate
} // 1;
1419 if ($mptype ne 'volume') {
1420 # skip bindmounts if replicate = 0 even for cleanup,
1421 # since bind mounts could not have been replicated ever
1422 return if !$replicate;
1423 die "unable to replicate mountpoint type '$mptype'\n";
1426 my ($storeid, $volname) = PVE
::Storage
::parse_volume_id
($volid, $noerr);
1427 return if !$storeid;
1429 my $scfg = PVE
::Storage
::storage_config
($storecfg, $storeid);
1430 return if $scfg->{shared
};
1432 my ($path, $owner, $vtype) = PVE
::Storage
::path
($storecfg, $volid);
1433 return if !$owner || ($owner != $vmid);
1435 die "unable to replicate volume '$volid', type '$vtype'\n" if $vtype ne 'images';
1437 return if !$cleanup && !$replicate;
1439 if (!PVE
::Storage
::volume_has_feature
($storecfg, 'replicate', $volid)) {
1440 return if $cleanup || $noerr;
1441 die "missing replicate feature on volume '$volid'\n";
1444 $volhash->{$volid} = 1;
1447 $class->foreach_mountpoint($conf, sub {
1448 my ($ms, $mountpoint) = @_;
1449 $test_volid->($mountpoint->{volume
}, $mountpoint);
1452 foreach my $snapname (keys %{$conf->{snapshots
}}) {
1453 my $snap = $conf->{snapshots
}->{$snapname};
1454 $class->foreach_mountpoint($snap, sub {
1455 my ($ms, $mountpoint) = @_;
1456 $test_volid->($mountpoint->{volume
}, $mountpoint);
1460 # add 'unusedX' volumes to volhash
1461 foreach my $key (keys %$conf) {
1462 if ($key =~ m/^unused/) {
1463 $test_volid->($conf->{$key}, { type
=> 'volume', replicate
=> 1 });