12 use Fcntl
qw(O_RDONLY);
14 use PVE
::Cluster
qw(cfs_register_file cfs_read_file);
15 use PVE
::Exception
qw(raise_perm_exc);
19 use PVE
::JSONSchema
qw(get_standard_option);
20 use PVE
::Tools
qw($IPV6RE $IPV4RE dir_glob_foreach lock_file lock_file_full);
22 use PVE
::AccessControl
;
24 use Time
::HiRes qw
(gettimeofday
);
28 my $nodename = PVE
::INotify
::nodename
();
30 my $cpuinfo= PVE
::ProcFSTools
::read_cpuinfo
();
32 our $COMMON_TAR_FLAGS = [ '--sparse', '--numeric-owner', '--acls',
34 '--xattrs-include=user.*',
35 '--xattrs-include=security.capability',
36 '--warning=no-xattr-write' ];
38 cfs_register_file
('/lxc/', \
&parse_pct_config
, \
&write_pct_config
);
44 format
=> 'pve-lxc-mp-string',
45 format_description
=> 'volume',
46 description
=> 'Volume, device or directory to mount into the container.',
50 format_description
=> '[1|0]',
51 description
=> 'Whether to include the mountpoint in backups.',
56 format
=> 'disk-size',
57 format_description
=> 'DiskSize',
58 description
=> 'Volume size (read only value).',
63 format_description
=> 'acl',
64 description
=> 'Explicitly enable or disable ACL support.',
69 format_description
=> 'ro',
70 description
=> 'Read-only mountpoint (not supported with bind mounts)',
75 format_description
=> '[0|1]',
76 description
=> 'Enable user quotas inside the container (not supported with zfs subvolumes)',
81 PVE
::JSONSchema
::register_standard_option
('pve-ct-rootfs', {
82 type
=> 'string', format
=> $rootfs_desc,
83 description
=> "Use volume as container root.",
87 PVE
::JSONSchema
::register_standard_option
('pve-lxc-snapshot-name', {
88 description
=> "The name of the snapshot.",
89 type
=> 'string', format
=> 'pve-configid',
97 description
=> "Lock/unlock the VM.",
98 enum
=> [qw(migrate backup snapshot rollback)],
103 description
=> "Specifies whether a VM will be started during system bootup.",
106 startup
=> get_standard_option
('pve-startup-order'),
110 description
=> "Enable/disable Template.",
116 enum
=> ['amd64', 'i386'],
117 description
=> "OS architecture type.",
123 enum
=> ['debian', 'ubuntu', 'centos', 'fedora', 'opensuse', 'archlinux', 'alpine', 'unmanaged'],
124 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.",
129 description
=> "Attach a console device (/dev/console) to the container.",
135 description
=> "Specify the number of tty available to the container",
143 description
=> "Limit of CPU usage. Note if the computer has 2 CPUs, it has a total of '2' CPU time. Value '0' indicates no CPU limit.",
151 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.",
159 description
=> "Amount of RAM for the VM in MB.",
166 description
=> "Amount of SWAP for the VM in MB.",
172 description
=> "Set a host name for the container.",
173 type
=> 'string', format
=> 'dns-name',
179 description
=> "Container description. Only used on the configuration web interface.",
183 type
=> 'string', format
=> 'dns-name-list',
184 description
=> "Sets DNS search domains for a container. Create will automatically use the setting from the host if you neither set searchdomain nor nameserver.",
188 type
=> 'string', format
=> 'address-list',
189 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.",
191 rootfs
=> get_standard_option
('pve-ct-rootfs'),
194 type
=> 'string', format
=> 'pve-configid',
196 description
=> "Parent snapshot name. This is used internally, and should not be modified.",
200 description
=> "Timestamp for snapshots.",
206 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).",
208 enum
=> ['shell', 'console', 'tty'],
214 description
=> "Sets the protection flag of the container. This will prevent the CT or CT's disk remove/update operation.",
220 description
=> "Makes the container run as unprivileged user. (Should not be modified manually.)",
225 my $valid_lxc_conf_keys = {
229 'lxc.haltsignal' => 1,
230 'lxc.rebootsignal' => 1,
231 'lxc.stopsignal' => 1,
233 'lxc.network.type' => 1,
234 'lxc.network.flags' => 1,
235 'lxc.network.link' => 1,
236 'lxc.network.mtu' => 1,
237 'lxc.network.name' => 1,
238 'lxc.network.hwaddr' => 1,
239 'lxc.network.ipv4' => 1,
240 'lxc.network.ipv4.gateway' => 1,
241 'lxc.network.ipv6' => 1,
242 'lxc.network.ipv6.gateway' => 1,
243 'lxc.network.script.up' => 1,
244 'lxc.network.script.down' => 1,
246 'lxc.console.logfile' => 1,
249 'lxc.devttydir' => 1,
250 'lxc.hook.autodev' => 1,
254 'lxc.mount.entry' => 1,
255 'lxc.mount.auto' => 1,
256 'lxc.rootfs' => 'lxc.rootfs is auto generated from rootfs',
257 'lxc.rootfs.mount' => 1,
258 'lxc.rootfs.options' => 'lxc.rootfs.options is not supported' .
259 ', please use mountpoint options in the "rootfs" key',
263 'lxc.aa_profile' => 1,
264 'lxc.aa_allow_incomplete' => 1,
265 'lxc.se_context' => 1,
268 'lxc.hook.pre-start' => 1,
269 'lxc.hook.pre-mount' => 1,
270 'lxc.hook.mount' => 1,
271 'lxc.hook.start' => 1,
272 'lxc.hook.stop' => 1,
273 'lxc.hook.post-stop' => 1,
274 'lxc.hook.clone' => 1,
275 'lxc.hook.destroy' => 1,
278 'lxc.start.auto' => 1,
279 'lxc.start.delay' => 1,
280 'lxc.start.order' => 1,
282 'lxc.environment' => 1,
289 description
=> "Network interface type.",
294 format_description
=> 'String',
295 description
=> 'Name of the network device as seen from inside the container. (lxc.network.name)',
296 pattern
=> '[-_.\w\d]+',
300 format_description
=> 'vmbr<Number>',
301 description
=> 'Bridge to attach the network device to.',
302 pattern
=> '[-_.\w\d]+',
307 format_description
=> 'MAC',
308 description
=> 'Bridge to attach the network device to. (lxc.network.hwaddr)',
309 pattern
=> qr/(?:[a-f0-9]{2}:){5}[a-f0-9]{2}/i,
314 format_description
=> 'Number',
315 description
=> 'Maximum transfer unit of the interface. (lxc.network.mtu)',
316 minimum
=> 64, # minimum ethernet frame is 64 bytes
321 format
=> 'pve-ipv4-config',
322 format_description
=> 'IPv4Format/CIDR',
323 description
=> 'IPv4 address in CIDR format.',
329 format_description
=> 'GatewayIPv4',
330 description
=> 'Default gateway for IPv4 traffic.',
335 format
=> 'pve-ipv6-config',
336 format_description
=> 'IPv6Format/CIDR',
337 description
=> 'IPv6 address in CIDR format.',
343 format_description
=> 'GatewayIPv6',
344 description
=> 'Default gateway for IPv6 traffic.',
349 format_description
=> '[1|0]',
350 description
=> "Controls whether this interface's firewall rules should be used.",
355 format_description
=> 'VlanNo',
358 description
=> "VLAN tag for this interface.",
363 pattern
=> qr/\d+(?:;\d+)*/,
364 format_description
=> 'vlanid[;vlanid...]',
365 description
=> "VLAN ids to pass through the interface",
369 PVE
::JSONSchema
::register_format
('pve-lxc-network', $netconf_desc);
371 my $MAX_LXC_NETWORKS = 10;
372 for (my $i = 0; $i < $MAX_LXC_NETWORKS; $i++) {
373 $confdesc->{"net$i"} = {
375 type
=> 'string', format
=> $netconf_desc,
376 description
=> "Specifies network interfaces for the container.",
380 PVE
::JSONSchema
::register_format
('pve-lxc-mp-string', \
&verify_lxc_mp_string
);
381 sub verify_lxc_mp_string
{
382 my ($mp, $noerr) = @_;
386 # /. or /.. at the end
387 # ../ at the beginning
389 if($mp =~ m
@/\.\
.?
/@ ||
392 return undef if $noerr;
393 die "$mp contains illegal character sequences\n";
402 format
=> 'pve-lxc-mp-string',
403 format_description
=> 'Path',
404 description
=> 'Path to the mountpoint as seen from inside the container.',
407 PVE
::JSONSchema
::register_format
('pve-ct-mountpoint', $mp_desc);
411 type
=> 'string', format
=> 'pve-volume-id',
412 description
=> "Reference to unused volumes.",
415 my $MAX_MOUNT_POINTS = 10;
416 for (my $i = 0; $i < $MAX_MOUNT_POINTS; $i++) {
417 $confdesc->{"mp$i"} = {
419 type
=> 'string', format
=> $mp_desc,
420 description
=> "Use volume as container mount point (experimental feature).",
425 my $MAX_UNUSED_DISKS = $MAX_MOUNT_POINTS;
426 for (my $i = 0; $i < $MAX_MOUNT_POINTS; $i++) {
427 $confdesc->{"unused$i"} = $unuseddesc;
430 sub write_pct_config
{
431 my ($filename, $conf) = @_;
433 delete $conf->{snapstate
}; # just to be sure
435 my $generate_raw_config = sub {
440 # add description as comment to top of file
441 my $descr = $conf->{description
} || '';
442 foreach my $cl (split(/\n/, $descr)) {
443 $raw .= '#' . PVE
::Tools
::encode_text
($cl) . "\n";
446 foreach my $key (sort keys %$conf) {
447 next if $key eq 'digest' || $key eq 'description' || $key eq 'pending' ||
448 $key eq 'snapshots' || $key eq 'snapname' || $key eq 'lxc';
449 my $value = $conf->{$key};
450 die "detected invalid newline inside property '$key'\n" if $value =~ m/\n/;
451 $raw .= "$key: $value\n";
454 if (my $lxcconf = $conf->{lxc
}) {
455 foreach my $entry (@$lxcconf) {
456 my ($k, $v) = @$entry;
464 my $raw = &$generate_raw_config($conf);
466 foreach my $snapname (sort keys %{$conf->{snapshots
}}) {
467 $raw .= "\n[$snapname]\n";
468 $raw .= &$generate_raw_config($conf->{snapshots
}->{$snapname});
475 my ($key, $value) = @_;
477 die "unknown setting '$key'\n" if !$confdesc->{$key};
479 my $type = $confdesc->{$key}->{type
};
481 if (!defined($value)) {
482 die "got undefined value\n";
485 if ($value =~ m/[\n\r]/) {
486 die "property contains a line feed\n";
489 if ($type eq 'boolean') {
490 return 1 if ($value eq '1') || ($value =~ m/^(on|yes|true)$/i);
491 return 0 if ($value eq '0') || ($value =~ m/^(off|no|false)$/i);
492 die "type check ('boolean') failed - got '$value'\n";
493 } elsif ($type eq 'integer') {
494 return int($1) if $value =~ m/^(\d+)$/;
495 die "type check ('integer') failed - got '$value'\n";
496 } elsif ($type eq 'number') {
497 return $value if $value =~ m/^(\d+)(\.\d+)?$/;
498 die "type check ('number') failed - got '$value'\n";
499 } elsif ($type eq 'string') {
500 if (my $fmt = $confdesc->{$key}->{format
}) {
501 PVE
::JSONSchema
::check_format
($fmt, $value);
510 sub parse_pct_config
{
511 my ($filename, $raw) = @_;
513 return undef if !defined($raw);
516 digest
=> Digest
::SHA
::sha1_hex
($raw),
520 $filename =~ m
|/lxc/(\d
+).conf
$|
521 || die "got strange filename '$filename'";
529 my @lines = split(/\n/, $raw);
530 foreach my $line (@lines) {
531 next if $line =~ m/^\s*$/;
533 if ($line =~ m/^\[([a-z][a-z0-9_\-]+)\]\s*$/i) {
535 $conf->{description
} = $descr if $descr;
537 $conf = $res->{snapshots
}->{$section} = {};
541 if ($line =~ m/^\#(.*)\s*$/) {
542 $descr .= PVE
::Tools
::decode_text
($1) . "\n";
546 if ($line =~ m/^(lxc\.[a-z0-9_\-\.]+)(:|\s*=)\s*(.*?)\s*$/) {
549 my $validity = $valid_lxc_conf_keys->{$key} || 0;
550 if ($validity eq 1 || $key =~ m/^lxc\.cgroup\./) {
551 push @{$conf->{lxc
}}, [$key, $value];
552 } elsif (my $errmsg = $validity) {
553 warn "vm $vmid - $key: $errmsg\n";
555 warn "vm $vmid - unable to parse config: $line\n";
557 } elsif ($line =~ m/^(description):\s*(.*\S)\s*$/) {
558 $descr .= PVE
::Tools
::decode_text
($2);
559 } elsif ($line =~ m/snapstate:\s*(prepare|delete)\s*$/) {
560 $conf->{snapstate
} = $1;
561 } elsif ($line =~ m/^([a-z][a-z_]*\d*):\s*(\S.*)\s*$/) {
564 eval { $value = check_type
($key, $value); };
565 warn "vm $vmid - unable to parse value of '$key' - $@" if $@;
566 $conf->{$key} = $value;
568 warn "vm $vmid - unable to parse config: $line\n";
572 $conf->{description
} = $descr if $descr;
574 delete $res->{snapstate
}; # just to be sure
580 my $vmlist = PVE
::Cluster
::get_vmlist
();
582 return $res if !$vmlist || !$vmlist->{ids
};
583 my $ids = $vmlist->{ids
};
585 foreach my $vmid (keys %$ids) {
586 next if !$vmid; # skip CT0
587 my $d = $ids->{$vmid};
588 next if !$d->{node
} || $d->{node
} ne $nodename;
589 next if !$d->{type
} || $d->{type
} ne 'lxc';
590 $res->{$vmid}->{type
} = 'lxc';
595 sub cfs_config_path
{
596 my ($vmid, $node) = @_;
598 $node = $nodename if !$node;
599 return "nodes/$node/lxc/$vmid.conf";
603 my ($vmid, $node) = @_;
605 my $cfspath = cfs_config_path
($vmid, $node);
606 return "/etc/pve/$cfspath";
610 my ($vmid, $node) = @_;
612 $node = $nodename if !$node;
613 my $cfspath = cfs_config_path
($vmid, $node);
615 my $conf = PVE
::Cluster
::cfs_read_file
($cfspath);
616 die "container $vmid does not exist\n" if !defined($conf);
622 my ($vmid, $conf) = @_;
624 my $dir = "/etc/pve/nodes/$nodename/lxc";
627 write_config
($vmid, $conf);
633 unlink config_file
($vmid, $nodename);
637 my ($vmid, $conf) = @_;
639 my $cfspath = cfs_config_path
($vmid);
641 PVE
::Cluster
::cfs_write_file
($cfspath, $conf);
644 # flock: we use one file handle per process, so lock file
645 # can be called multiple times and will succeed for the same process.
647 my $lock_handles = {};
648 my $lockdir = "/run/lock/lxc";
650 sub config_file_lock
{
653 return "$lockdir/pve-config-${vmid}.lock";
656 sub lock_config_full
{
657 my ($vmid, $timeout, $code, @param) = @_;
659 my $filename = config_file_lock
($vmid);
661 mkdir $lockdir if !-d
$lockdir;
663 my $res = lock_file
($filename, $timeout, $code, @param);
670 sub lock_config_mode
{
671 my ($vmid, $timeout, $shared, $code, @param) = @_;
673 my $filename = config_file_lock
($vmid);
675 mkdir $lockdir if !-d
$lockdir;
677 my $res = lock_file_full
($filename, $timeout, $shared, $code, @param);
685 my ($vmid, $code, @param) = @_;
687 return lock_config_full
($vmid, 10, $code, @param);
693 return defined($confdesc->{$name});
696 # add JSON properties for create and set function
697 sub json_config_properties
{
700 foreach my $opt (keys %$confdesc) {
701 next if $opt eq 'parent' || $opt eq 'snaptime';
702 next if $prop->{$opt};
703 $prop->{$opt} = $confdesc->{$opt};
709 # container status helpers
711 sub list_active_containers
{
713 my $filename = "/proc/net/unix";
715 # similar test is used by lcxcontainers.c: list_active_containers
718 my $fh = IO
::File-
>new ($filename, "r");
721 while (defined(my $line = <$fh>)) {
722 if ($line =~ m/^[a-f0-9]+:\s\S+\s\S+\s\S+\s\S+\s\S+\s\d+\s(\S+)$/) {
724 if ($path =~ m!^@/var/lib/lxc/(\d+)/command$!) {
735 # warning: this is slow
739 my $active_hash = list_active_containers
();
741 return 1 if defined($active_hash->{$vmid});
746 sub get_container_disk_usage
{
747 my ($vmid, $pid) = @_;
749 return PVE
::Tools
::df
("/proc/$pid/root/", 1);
752 my $last_proc_vmid_stat;
754 my $parse_cpuacct_stat = sub {
757 my $raw = read_cgroup_value
('cpuacct', $vmid, 'cpuacct.stat', 1);
761 if ($raw =~ m/^user (\d+)\nsystem (\d+)\n/) {
774 my $list = $opt_vmid ?
{ $opt_vmid => { type
=> 'lxc' }} : config_list
();
776 my $active_hash = list_active_containers
();
778 my $cpucount = $cpuinfo->{cpus
} || 1;
780 my $cdtime = gettimeofday
;
782 my $uptime = (PVE
::ProcFSTools
::read_proc_uptime
(1))[0];
784 foreach my $vmid (keys %$list) {
785 my $d = $list->{$vmid};
787 eval { $d->{pid
} = find_lxc_pid
($vmid) if defined($active_hash->{$vmid}); };
788 warn $@ if $@; # ignore errors (consider them stopped)
790 $d->{status
} = $d->{pid
} ?
'running' : 'stopped';
792 my $cfspath = cfs_config_path
($vmid);
793 my $conf = PVE
::Cluster
::cfs_read_file
($cfspath) || {};
795 $d->{name
} = $conf->{'hostname'} || "CT$vmid";
796 $d->{name
} =~ s/[\s]//g;
798 $d->{cpus
} = $conf->{cpulimit
} || $cpucount;
801 my $res = get_container_disk_usage
($vmid, $d->{pid
});
802 $d->{disk
} = $res->{used
};
803 $d->{maxdisk
} = $res->{total
};
806 # use 4GB by default ??
807 if (my $rootfs = $conf->{rootfs
}) {
808 my $rootinfo = parse_ct_rootfs
($rootfs);
809 $d->{maxdisk
} = int(($rootinfo->{size
} || 4)*1024*1024)*1024;
811 $d->{maxdisk
} = 4*1024*1024*1024;
817 $d->{maxmem
} = ($conf->{memory
}||512)*1024*1024;
818 $d->{maxswap
} = ($conf->{swap
}//0)*1024*1024;
829 $d->{template
} = is_template
($conf);
832 foreach my $vmid (keys %$list) {
833 my $d = $list->{$vmid};
836 next if !$pid; # skip stopped CTs
838 my $ctime = (stat("/proc/$pid"))[10]; # 10 = ctime
839 $d->{uptime
} = time - $ctime; # the method lxcfs uses
841 $d->{mem
} = read_cgroup_value
('memory', $vmid, 'memory.usage_in_bytes');
842 $d->{swap
} = read_cgroup_value
('memory', $vmid, 'memory.memsw.usage_in_bytes') - $d->{mem
};
844 my $blkio_bytes = read_cgroup_value
('blkio', $vmid, 'blkio.throttle.io_service_bytes', 1);
845 my @bytes = split(/\n/, $blkio_bytes);
846 foreach my $byte (@bytes) {
847 if (my ($key, $value) = $byte =~ /(Read|Write)\s+(\d+)/) {
848 $d->{diskread
} = $2 if $key eq 'Read';
849 $d->{diskwrite
} = $2 if $key eq 'Write';
853 my $pstat = &$parse_cpuacct_stat($vmid);
855 my $used = $pstat->{utime} + $pstat->{stime
};
857 my $old = $last_proc_vmid_stat->{$vmid};
859 $last_proc_vmid_stat->{$vmid} = {
867 my $dtime = ($cdtime - $old->{time}) * $cpucount * $cpuinfo->{user_hz
};
870 my $dutime = $used - $old->{used
};
872 $d->{cpu
} = (($dutime/$dtime)* $cpucount) / $d->{cpus
};
873 $last_proc_vmid_stat->{$vmid} = {
879 $d->{cpu
} = $old->{cpu
};
883 my $netdev = PVE
::ProcFSTools
::read_proc_net_dev
();
885 foreach my $dev (keys %$netdev) {
886 next if $dev !~ m/^veth([1-9]\d*)i/;
888 my $d = $list->{$vmid};
892 $d->{netout
} += $netdev->{$dev}->{receive
};
893 $d->{netin
} += $netdev->{$dev}->{transmit
};
900 sub classify_mountpoint
{
903 return 'device' if $vol =~ m!^/dev/!;
909 my $parse_ct_mountpoint_full = sub {
910 my ($desc, $data, $noerr) = @_;
915 eval { $res = PVE
::JSONSchema
::parse_property_string
($desc, $data) };
917 return undef if $noerr;
921 if (defined(my $size = $res->{size
})) {
922 $size = PVE
::JSONSchema
::parse_size
($size);
923 if (!defined($size)) {
924 return undef if $noerr;
925 die "invalid size: $size\n";
927 $res->{size
} = $size;
930 $res->{type
} = classify_mountpoint
($res->{volume
});
935 sub parse_ct_rootfs
{
936 my ($data, $noerr) = @_;
938 my $res = &$parse_ct_mountpoint_full($rootfs_desc, $data, $noerr);
940 $res->{mp
} = '/' if defined($res);
945 sub parse_ct_mountpoint
{
946 my ($data, $noerr) = @_;
948 return &$parse_ct_mountpoint_full($mp_desc, $data, $noerr);
951 sub print_ct_mountpoint
{
952 my ($info, $nomp) = @_;
953 my $skip = [ 'type' ];
954 push @$skip, 'mp' if $nomp;
955 return PVE
::JSONSchema
::print_property_string
($info, $mp_desc, $skip);
958 sub print_lxc_network
{
960 return PVE
::JSONSchema
::print_property_string
($net, $netconf_desc);
963 sub parse_lxc_network
{
968 return $res if !$data;
970 $res = PVE
::JSONSchema
::parse_property_string
($netconf_desc, $data);
972 $res->{type
} = 'veth';
973 $res->{hwaddr
} = PVE
::Tools
::random_ether_addr
() if !$res->{hwaddr
};
978 sub read_cgroup_value
{
979 my ($group, $vmid, $name, $full) = @_;
981 my $path = "/sys/fs/cgroup/$group/lxc/$vmid/$name";
983 return PVE
::Tools
::file_get_contents
($path) if $full;
985 return PVE
::Tools
::file_read_firstline
($path);
988 sub write_cgroup_value
{
989 my ($group, $vmid, $name, $value) = @_;
991 my $path = "/sys/fs/cgroup/$group/lxc/$vmid/$name";
992 PVE
::ProcFSTools
::write_proc_entry
($path, $value) if -e
$path;
996 sub find_lxc_console_pids
{
1000 PVE
::Tools
::dir_glob_foreach
('/proc', '\d+', sub {
1003 my $cmdline = PVE
::Tools
::file_read_firstline
("/proc/$pid/cmdline");
1004 return if !$cmdline;
1006 my @args = split(/\0/, $cmdline);
1008 # search for lxc-console -n <vmid>
1009 return if scalar(@args) != 3;
1010 return if $args[1] ne '-n';
1011 return if $args[2] !~ m/^\d+$/;
1012 return if $args[0] !~ m
|^(/usr/bin
/)?lxc-console
$|;
1014 my $vmid = $args[2];
1016 push @{$res->{$vmid}}, $pid;
1028 $pid = $1 if $line =~ m/^PID:\s+(\d+)$/;
1030 PVE
::Tools
::run_command
(['lxc-info', '-n', $vmid, '-p'], outfunc
=> $parser);
1032 die "unable to get PID for CT $vmid (not running?)\n" if !$pid;
1037 # Note: we cannot use Net:IP, because that only allows strict
1039 sub parse_ipv4_cidr
{
1040 my ($cidr, $noerr) = @_;
1042 if ($cidr =~ m!^($IPV4RE)(?:/(\d+))$! && ($2 > 7) && ($2 <= 32)) {
1043 return { address
=> $1, netmask
=> $PVE::Network
::ipv4_reverse_mask-
>[$2] };
1046 return undef if $noerr;
1048 die "unable to parse ipv4 address/mask\n";
1054 die "VM is locked ($conf->{'lock'})\n" if $conf->{'lock'};
1057 sub check_protection
{
1058 my ($vm_conf, $err_msg) = @_;
1060 if ($vm_conf->{protection
}) {
1061 die "$err_msg - protection mode enabled\n";
1065 sub update_lxc_config
{
1066 my ($storage_cfg, $vmid, $conf) = @_;
1068 my $dir = "/var/lib/lxc/$vmid";
1070 if ($conf->{template
}) {
1072 unlink "$dir/config";
1079 die "missing 'arch' - internal error" if !$conf->{arch
};
1080 $raw .= "lxc.arch = $conf->{arch}\n";
1082 my $unprivileged = $conf->{unprivileged
};
1083 my $custom_idmap = grep { $_->[0] eq 'lxc.id_map' } @{$conf->{lxc
}};
1085 my $ostype = $conf->{ostype
} || die "missing 'ostype' - internal error";
1086 if ($ostype =~ /^(?:debian | ubuntu | centos | fedora | opensuse | archlinux | alpine | unmanaged)$/x) {
1087 my $inc ="/usr/share/lxc/config/$ostype.common.conf";
1088 $inc ="/usr/share/lxc/config/common.conf" if !-f
$inc;
1089 $raw .= "lxc.include = $inc\n";
1090 if ($unprivileged || $custom_idmap) {
1091 $inc = "/usr/share/lxc/config/$ostype.userns.conf";
1092 $inc = "/usr/share/lxc/config/userns.conf" if !-f
$inc;
1093 $raw .= "lxc.include = $inc\n"
1096 die "implement me (ostype $ostype)";
1099 # WARNING: DO NOT REMOVE this without making sure that loop device nodes
1100 # cannot be exposed to the container with r/w access (cgroup perms).
1101 # When this is enabled mounts will still remain in the monitor's namespace
1102 # after the container unmounted them and thus will not detach from their
1103 # files while the container is running!
1104 $raw .= "lxc.monitor.unshare = 1\n";
1106 # Should we read them from /etc/subuid?
1107 if ($unprivileged && !$custom_idmap) {
1108 $raw .= "lxc.id_map = u 0 100000 65536\n";
1109 $raw .= "lxc.id_map = g 0 100000 65536\n";
1112 if (!has_dev_console
($conf)) {
1113 $raw .= "lxc.console = none\n";
1114 $raw .= "lxc.cgroup.devices.deny = c 5:1 rwm\n";
1117 my $ttycount = get_tty_count
($conf);
1118 $raw .= "lxc.tty = $ttycount\n";
1120 # some init scripts expect a linux terminal (turnkey).
1121 $raw .= "lxc.environment = TERM=linux\n";
1123 my $utsname = $conf->{hostname
} || "CT$vmid";
1124 $raw .= "lxc.utsname = $utsname\n";
1126 my $memory = $conf->{memory
} || 512;
1127 my $swap = $conf->{swap
} // 0;
1129 my $lxcmem = int($memory*1024*1024);
1130 $raw .= "lxc.cgroup.memory.limit_in_bytes = $lxcmem\n";
1132 my $lxcswap = int(($memory + $swap)*1024*1024);
1133 $raw .= "lxc.cgroup.memory.memsw.limit_in_bytes = $lxcswap\n";
1135 if (my $cpulimit = $conf->{cpulimit
}) {
1136 $raw .= "lxc.cgroup.cpu.cfs_period_us = 100000\n";
1137 my $value = int(100000*$cpulimit);
1138 $raw .= "lxc.cgroup.cpu.cfs_quota_us = $value\n";
1141 my $shares = $conf->{cpuunits
} || 1024;
1142 $raw .= "lxc.cgroup.cpu.shares = $shares\n";
1144 my $mountpoint = parse_ct_rootfs
($conf->{rootfs
});
1146 $raw .= "lxc.rootfs = $dir/rootfs\n";
1149 foreach my $k (keys %$conf) {
1150 next if $k !~ m/^net(\d+)$/;
1152 my $d = parse_lxc_network
($conf->{$k});
1154 $raw .= "lxc.network.type = veth\n";
1155 $raw .= "lxc.network.veth.pair = veth${vmid}i${ind}\n";
1156 $raw .= "lxc.network.hwaddr = $d->{hwaddr}\n" if defined($d->{hwaddr
});
1157 $raw .= "lxc.network.name = $d->{name}\n" if defined($d->{name
});
1158 $raw .= "lxc.network.mtu = $d->{mtu}\n" if defined($d->{mtu
});
1161 if (my $lxcconf = $conf->{lxc
}) {
1162 foreach my $entry (@$lxcconf) {
1163 my ($k, $v) = @$entry;
1164 $netcount++ if $k eq 'lxc.network.type';
1165 $raw .= "$k = $v\n";
1169 $raw .= "lxc.network.type = empty\n" if !$netcount;
1171 File
::Path
::mkpath
("$dir/rootfs");
1173 PVE
::Tools
::file_set_contents
("$dir/config", $raw);
1176 # verify and cleanup nameserver list (replace \0 with ' ')
1177 sub verify_nameserver_list
{
1178 my ($nameserver_list) = @_;
1181 foreach my $server (PVE
::Tools
::split_list
($nameserver_list)) {
1182 PVE
::JSONSchema
::pve_verify_ip
($server);
1183 push @list, $server;
1186 return join(' ', @list);
1189 sub verify_searchdomain_list
{
1190 my ($searchdomain_list) = @_;
1193 foreach my $server (PVE
::Tools
::split_list
($searchdomain_list)) {
1194 # todo: should we add checks for valid dns domains?
1195 push @list, $server;
1198 return join(' ', @list);
1201 sub is_volume_in_use
{
1202 my ($config, $volid, $include_snapshots) = @_;
1205 foreach_mountpoint
($config, sub {
1206 my ($ms, $mountpoint) = @_;
1208 if ($mountpoint->{type
} eq 'volume' && $mountpoint->{volume
} eq $volid) {
1213 my $snapshots = $config->{snapshots
};
1214 if ($include_snapshots && $snapshots) {
1215 foreach my $snap (keys %$snapshots) {
1216 $used ||= is_volume_in_use
($snapshots->{$snap}, $volid);
1223 sub add_unused_volume
{
1224 my ($config, $volid) = @_;
1227 for (my $ind = $MAX_UNUSED_DISKS - 1; $ind >= 0; $ind--) {
1228 my $test = "unused$ind";
1229 if (my $vid = $config->{$test}) {
1230 return if $vid eq $volid; # do not add duplicates
1236 die "Too many unused volumes - please delete them first.\n" if !$key;
1238 $config->{$key} = $volid;
1243 sub update_pct_config
{
1244 my ($vmid, $conf, $running, $param, $delete) = @_;
1249 my @deleted_volumes;
1253 my $pid = find_lxc_pid
($vmid);
1254 $rootdir = "/proc/$pid/root";
1257 my $hotplug_error = sub {
1259 push @nohotplug, @_;
1266 if (defined($delete)) {
1267 foreach my $opt (@$delete) {
1268 if (!exists($conf->{$opt})) {
1269 warn "no such option: $opt\n";
1273 if ($opt eq 'hostname' || $opt eq 'memory' || $opt eq 'rootfs') {
1274 die "unable to delete required option '$opt'\n";
1275 } elsif ($opt eq 'swap') {
1276 delete $conf->{$opt};
1277 write_cgroup_value
("memory", $vmid, "memory.memsw.limit_in_bytes", -1);
1278 } elsif ($opt eq 'description' || $opt eq 'onboot' || $opt eq 'startup') {
1279 delete $conf->{$opt};
1280 } elsif ($opt eq 'nameserver' || $opt eq 'searchdomain' ||
1281 $opt eq 'tty' || $opt eq 'console' || $opt eq 'cmode') {
1282 next if $hotplug_error->($opt);
1283 delete $conf->{$opt};
1284 } elsif ($opt =~ m/^net(\d)$/) {
1285 delete $conf->{$opt};
1288 PVE
::Network
::veth_delete
("veth${vmid}i$netid");
1289 } elsif ($opt eq 'protection') {
1290 delete $conf->{$opt};
1291 } elsif ($opt =~ m/^unused(\d+)$/) {
1292 next if $hotplug_error->($opt);
1293 check_protection
($conf, "can't remove CT $vmid drive '$opt'");
1294 push @deleted_volumes, $conf->{$opt};
1295 delete $conf->{$opt};
1296 } elsif ($opt =~ m/^mp(\d+)$/) {
1297 next if $hotplug_error->($opt);
1298 check_protection
($conf, "can't remove CT $vmid drive '$opt'");
1299 my $mp = parse_ct_mountpoint
($conf->{$opt});
1300 delete $conf->{$opt};
1301 if ($mp->{type
} eq 'volume' && !is_volume_in_use
($conf, $mp->{volume
})) {
1302 add_unused_volume
($conf, $mp->{volume
});
1304 } elsif ($opt eq 'unprivileged') {
1305 die "unable to delete read-only option: '$opt'\n";
1307 die "implement me (delete: $opt)"
1309 write_config
($vmid, $conf) if $running;
1313 # There's no separate swap size to configure, there's memory and "total"
1314 # memory (iow. memory+swap). This means we have to change them together.
1315 my $wanted_memory = PVE
::Tools
::extract_param
($param, 'memory');
1316 my $wanted_swap = PVE
::Tools
::extract_param
($param, 'swap');
1317 if (defined($wanted_memory) || defined($wanted_swap)) {
1319 my $old_memory = ($conf->{memory
} || 512);
1320 my $old_swap = ($conf->{swap
} || 0);
1322 $wanted_memory //= $old_memory;
1323 $wanted_swap //= $old_swap;
1325 my $total = $wanted_memory + $wanted_swap;
1327 my $old_total = $old_memory + $old_swap;
1328 if ($total > $old_total) {
1329 write_cgroup_value
("memory", $vmid, "memory.memsw.limit_in_bytes", int($total*1024*1024));
1330 write_cgroup_value
("memory", $vmid, "memory.limit_in_bytes", int($wanted_memory*1024*1024));
1332 write_cgroup_value
("memory", $vmid, "memory.limit_in_bytes", int($wanted_memory*1024*1024));
1333 write_cgroup_value
("memory", $vmid, "memory.memsw.limit_in_bytes", int($total*1024*1024));
1336 $conf->{memory
} = $wanted_memory;
1337 $conf->{swap
} = $wanted_swap;
1339 write_config
($vmid, $conf) if $running;
1342 my $used_volids = {};
1344 foreach my $opt (keys %$param) {
1345 my $value = $param->{$opt};
1346 if ($opt eq 'hostname') {
1347 $conf->{$opt} = $value;
1348 } elsif ($opt eq 'onboot') {
1349 $conf->{$opt} = $value ?
1 : 0;
1350 } elsif ($opt eq 'startup') {
1351 $conf->{$opt} = $value;
1352 } elsif ($opt eq 'tty' || $opt eq 'console' || $opt eq 'cmode') {
1353 next if $hotplug_error->($opt);
1354 $conf->{$opt} = $value;
1355 } elsif ($opt eq 'nameserver') {
1356 next if $hotplug_error->($opt);
1357 my $list = verify_nameserver_list
($value);
1358 $conf->{$opt} = $list;
1359 } elsif ($opt eq 'searchdomain') {
1360 next if $hotplug_error->($opt);
1361 my $list = verify_searchdomain_list
($value);
1362 $conf->{$opt} = $list;
1363 } elsif ($opt eq 'cpulimit') {
1364 next if $hotplug_error->($opt); # FIXME: hotplug
1365 $conf->{$opt} = $value;
1366 } elsif ($opt eq 'cpuunits') {
1367 $conf->{$opt} = $value;
1368 write_cgroup_value
("cpu", $vmid, "cpu.shares", $value);
1369 } elsif ($opt eq 'description') {
1370 $conf->{$opt} = PVE
::Tools
::encode_text
($value);
1371 } elsif ($opt =~ m/^net(\d+)$/) {
1373 my $net = parse_lxc_network
($value);
1375 $conf->{$opt} = print_lxc_network
($net);
1377 update_net
($vmid, $conf, $opt, $net, $netid, $rootdir);
1379 } elsif ($opt eq 'protection') {
1380 $conf->{$opt} = $value ?
1 : 0;
1381 } elsif ($opt =~ m/^mp(\d+)$/) {
1382 next if $hotplug_error->($opt);
1383 check_protection
($conf, "can't update CT $vmid drive '$opt'");
1384 my $old = $conf->{$opt};
1385 $conf->{$opt} = $value;
1386 if (defined($old)) {
1387 my $mp = parse_ct_mountpoint
($old);
1388 if ($mp->{type
} eq 'volume' && !is_volume_in_use
($conf, $mp->{volume
})) {
1389 add_unused_volume
($conf, $mp->{volume
});
1393 my $mp = parse_ct_mountpoint
($value);
1394 $used_volids->{$mp->{volume
}} = 1;
1395 } elsif ($opt eq 'rootfs') {
1396 next if $hotplug_error->($opt);
1397 check_protection
($conf, "can't update CT $vmid drive '$opt'");
1398 my $old = $conf->{$opt};
1399 $conf->{$opt} = $value;
1400 if (defined($old)) {
1401 my $mp = parse_ct_rootfs
($old);
1402 if ($mp->{type
} eq 'volume' && !is_volume_in_use
($conf, $mp->{volume
})) {
1403 add_unused_volume
($conf, $mp->{volume
});
1406 my $mp = parse_ct_rootfs
($value);
1407 $used_volids->{$mp->{volume
}} = 1;
1408 } elsif ($opt eq 'unprivileged') {
1409 die "unable to modify read-only option: '$opt'\n";
1410 } elsif ($opt eq 'ostype') {
1411 next if $hotplug_error->($opt);
1412 $conf->{$opt} = $value;
1414 die "implement me: $opt";
1416 write_config
($vmid, $conf) if $running;
1421 # Remove unused disks after re-adding
1422 foreach my $key (keys %$conf) {
1423 next if $key !~ /^unused\d+/;
1424 my $volid = $conf->{$key};
1425 if ($used_volids->{$volid}) {
1426 delete $conf->{$key};
1430 # Apply deletions and creations of new volumes
1431 if (@deleted_volumes) {
1432 my $storage_cfg = PVE
::Storage
::config
();
1433 foreach my $volume (@deleted_volumes) {
1434 next if $used_volids->{$volume}; # could have been re-added, too
1435 # also check for references in snapshots
1436 next if is_volume_in_use
($conf, $volume, 1);
1437 delete_mountpoint_volume
($storage_cfg, $vmid, $volume);
1442 my $storage_cfg = PVE
::Storage
::config
();
1443 create_disks
($storage_cfg, $vmid, $conf, $conf);
1446 # This should be the last thing we do here
1447 if ($running && scalar(@nohotplug)) {
1448 die "unable to modify " . join(',', @nohotplug) . " while container is running\n";
1452 sub has_dev_console
{
1455 return !(defined($conf->{console
}) && !$conf->{console
});
1461 return $conf->{tty
} // $confdesc->{tty
}->{default};
1467 return $conf->{cmode
} // $confdesc->{cmode
}->{default};
1470 sub get_console_command
{
1471 my ($vmid, $conf) = @_;
1473 my $cmode = get_cmode
($conf);
1475 if ($cmode eq 'console') {
1476 return ['lxc-console', '-n', $vmid, '-t', 0];
1477 } elsif ($cmode eq 'tty') {
1478 return ['lxc-console', '-n', $vmid];
1479 } elsif ($cmode eq 'shell') {
1480 return ['lxc-attach', '--clear-env', '-n', $vmid];
1482 die "internal error";
1486 sub get_primary_ips
{
1489 # return data from net0
1491 return undef if !defined($conf->{net0
});
1492 my $net = parse_lxc_network
($conf->{net0
});
1494 my $ipv4 = $net->{ip
};
1496 if ($ipv4 =~ /^(dhcp|manual)$/) {
1502 my $ipv6 = $net->{ip6
};
1504 if ($ipv6 =~ /^(auto|dhcp|manual)$/) {
1511 return ($ipv4, $ipv6);
1514 sub delete_mountpoint_volume
{
1515 my ($storage_cfg, $vmid, $volume) = @_;
1517 return if classify_mountpoint
($volume) ne 'volume';
1519 my ($vtype, $name, $owner) = PVE
::Storage
::parse_volname
($storage_cfg, $volume);
1520 PVE
::Storage
::vdisk_free
($storage_cfg, $volume) if $vmid == $owner;
1523 sub destroy_lxc_container
{
1524 my ($storage_cfg, $vmid, $conf) = @_;
1526 foreach_mountpoint
($conf, sub {
1527 my ($ms, $mountpoint) = @_;
1528 delete_mountpoint_volume
($storage_cfg, $vmid, $mountpoint->{volume
});
1531 rmdir "/var/lib/lxc/$vmid/rootfs";
1532 unlink "/var/lib/lxc/$vmid/config";
1533 rmdir "/var/lib/lxc/$vmid";
1534 destroy_config
($vmid);
1536 #my $cmd = ['lxc-destroy', '-n', $vmid ];
1537 #PVE::Tools::run_command($cmd);
1540 sub vm_stop_cleanup
{
1541 my ($storage_cfg, $vmid, $conf, $keepActive) = @_;
1546 my $vollist = get_vm_volumes
($conf);
1547 PVE
::Storage
::deactivate_volumes
($storage_cfg, $vollist);
1550 warn $@ if $@; # avoid errors - just warn
1553 my $safe_num_ne = sub {
1556 return 0 if !defined($a) && !defined($b);
1557 return 1 if !defined($a);
1558 return 1 if !defined($b);
1563 my $safe_string_ne = sub {
1566 return 0 if !defined($a) && !defined($b);
1567 return 1 if !defined($a);
1568 return 1 if !defined($b);
1574 my ($vmid, $conf, $opt, $newnet, $netid, $rootdir) = @_;
1576 if ($newnet->{type
} ne 'veth') {
1577 # for when there are physical interfaces
1578 die "cannot update interface of type $newnet->{type}";
1581 my $veth = "veth${vmid}i${netid}";
1582 my $eth = $newnet->{name
};
1584 if (my $oldnetcfg = $conf->{$opt}) {
1585 my $oldnet = parse_lxc_network
($oldnetcfg);
1587 if (&$safe_string_ne($oldnet->{hwaddr
}, $newnet->{hwaddr
}) ||
1588 &$safe_string_ne($oldnet->{name
}, $newnet->{name
})) {
1590 PVE
::Network
::veth_delete
($veth);
1591 delete $conf->{$opt};
1592 write_config
($vmid, $conf);
1594 hotplug_net
($vmid, $conf, $opt, $newnet, $netid);
1596 } elsif (&$safe_string_ne($oldnet->{bridge
}, $newnet->{bridge
}) ||
1597 &$safe_num_ne($oldnet->{tag
}, $newnet->{tag
}) ||
1598 &$safe_num_ne($oldnet->{firewall
}, $newnet->{firewall
})) {
1600 if ($oldnet->{bridge
}) {
1601 PVE
::Network
::tap_unplug
($veth);
1602 foreach (qw(bridge tag firewall)) {
1603 delete $oldnet->{$_};
1605 $conf->{$opt} = print_lxc_network
($oldnet);
1606 write_config
($vmid, $conf);
1609 PVE
::Network
::tap_plug
($veth, $newnet->{bridge
}, $newnet->{tag
}, $newnet->{firewall
}, $newnet->{trunks
});
1610 foreach (qw(bridge tag firewall)) {
1611 $oldnet->{$_} = $newnet->{$_} if $newnet->{$_};
1613 $conf->{$opt} = print_lxc_network
($oldnet);
1614 write_config
($vmid, $conf);
1617 hotplug_net
($vmid, $conf, $opt, $newnet, $netid);
1620 update_ipconfig
($vmid, $conf, $opt, $eth, $newnet, $rootdir);
1624 my ($vmid, $conf, $opt, $newnet, $netid) = @_;
1626 my $veth = "veth${vmid}i${netid}";
1627 my $vethpeer = $veth . "p";
1628 my $eth = $newnet->{name
};
1630 PVE
::Network
::veth_create
($veth, $vethpeer, $newnet->{bridge
}, $newnet->{hwaddr
});
1631 PVE
::Network
::tap_plug
($veth, $newnet->{bridge
}, $newnet->{tag
}, $newnet->{firewall
}, $newnet->{trunks
});
1633 # attach peer in container
1634 my $cmd = ['lxc-device', '-n', $vmid, 'add', $vethpeer, "$eth" ];
1635 PVE
::Tools
::run_command
($cmd);
1637 # link up peer in container
1638 $cmd = ['lxc-attach', '-n', $vmid, '-s', 'NETWORK', '--', '/sbin/ip', 'link', 'set', $eth ,'up' ];
1639 PVE
::Tools
::run_command
($cmd);
1641 my $done = { type
=> 'veth' };
1642 foreach (qw(bridge tag firewall hwaddr name)) {
1643 $done->{$_} = $newnet->{$_} if $newnet->{$_};
1645 $conf->{$opt} = print_lxc_network
($done);
1647 write_config
($vmid, $conf);
1650 sub update_ipconfig
{
1651 my ($vmid, $conf, $opt, $eth, $newnet, $rootdir) = @_;
1653 my $lxc_setup = PVE
::LXC
::Setup-
>new($conf, $rootdir);
1655 my $optdata = parse_lxc_network
($conf->{$opt});
1659 my $cmdargs = shift;
1660 PVE
::Tools
::run_command
(['lxc-attach', '-n', $vmid, '-s', 'NETWORK', '--', @_], %$cmdargs);
1662 my $ipcmd = sub { &$nscmd({}, '/sbin/ip', @_) };
1664 my $change_ip_config = sub {
1665 my ($ipversion) = @_;
1667 my $family_opt = "-$ipversion";
1668 my $suffix = $ipversion == 4 ?
'' : $ipversion;
1669 my $gw= "gw$suffix";
1670 my $ip= "ip$suffix";
1672 my $newip = $newnet->{$ip};
1673 my $newgw = $newnet->{$gw};
1674 my $oldip = $optdata->{$ip};
1676 my $change_ip = &$safe_string_ne($oldip, $newip);
1677 my $change_gw = &$safe_string_ne($optdata->{$gw}, $newgw);
1679 return if !$change_ip && !$change_gw;
1681 # step 1: add new IP, if this fails we cancel
1682 my $is_real_ip = ($newip && $newip !~ /^(?:auto|dhcp|manual)$/);
1683 if ($change_ip && $is_real_ip) {
1684 eval { &$ipcmd($family_opt, 'addr', 'add', $newip, 'dev', $eth); };
1691 # step 2: replace gateway
1692 # If this fails we delete the added IP and cancel.
1693 # If it succeeds we save the config and delete the old IP, ignoring
1694 # errors. The config is then saved.
1695 # Note: 'ip route replace' can add
1699 if ($is_real_ip && !PVE
::Network
::is_ip_in_cidr
($newgw, $newip, $ipversion)) {
1700 &$ipcmd($family_opt, 'route', 'add', $newgw, 'dev', $eth);
1702 &$ipcmd($family_opt, 'route', 'replace', 'default', 'via', $newgw);
1706 # the route was not replaced, the old IP is still available
1707 # rollback (delete new IP) and cancel
1709 eval { &$ipcmd($family_opt, 'addr', 'del', $newip, 'dev', $eth); };
1710 warn $@ if $@; # no need to die here
1715 eval { &$ipcmd($family_opt, 'route', 'del', 'default'); };
1716 # if the route was not deleted, the guest might have deleted it manually
1722 # from this point on we save the configuration
1723 # step 3: delete old IP ignoring errors
1724 if ($change_ip && $oldip && $oldip !~ /^(?:auto|dhcp)$/) {
1725 # We need to enable promote_secondaries, otherwise our newly added
1726 # address will be removed along with the old one.
1729 if ($ipversion == 4) {
1730 &$nscmd({ outfunc
=> sub { $promote = int(shift) } },
1731 'cat', "/proc/sys/net/ipv4/conf/$eth/promote_secondaries");
1732 &$nscmd({}, 'sysctl', "net.ipv4.conf.$eth.promote_secondaries=1");
1734 &$ipcmd($family_opt, 'addr', 'del', $oldip, 'dev', $eth);
1736 warn $@ if $@; # no need to die here
1738 if ($ipversion == 4) {
1739 &$nscmd({}, 'sysctl', "net.ipv4.conf.$eth.promote_secondaries=$promote");
1743 foreach my $property ($ip, $gw) {
1744 if ($newnet->{$property}) {
1745 $optdata->{$property} = $newnet->{$property};
1747 delete $optdata->{$property};
1750 $conf->{$opt} = print_lxc_network
($optdata);
1751 write_config
($vmid, $conf);
1752 $lxc_setup->setup_network($conf);
1755 &$change_ip_config(4);
1756 &$change_ip_config(6);
1760 # Internal snapshots
1762 # NOTE: Snapshot create/delete involves several non-atomic
1763 # actions, and can take a long time.
1764 # So we try to avoid locking the file and use the 'lock' variable
1765 # inside the config file instead.
1767 my $snapshot_copy_config = sub {
1768 my ($source, $dest) = @_;
1770 foreach my $k (keys %$source) {
1771 next if $k eq 'snapshots';
1772 next if $k eq 'snapstate';
1773 next if $k eq 'snaptime';
1774 next if $k eq 'vmstate';
1775 next if $k eq 'lock';
1776 next if $k eq 'digest';
1777 next if $k eq 'description';
1778 next if $k =~ m/^unused\d+$/;
1780 $dest->{$k} = $source->{$k};
1784 my $snapshot_apply_config = sub {
1785 my ($conf, $snap) = @_;
1787 # copy snapshot list
1789 snapshots
=> $conf->{snapshots
},
1792 # keep description and list of unused disks
1793 foreach my $k (keys %$conf) {
1794 next if !($k =~ m/^unused\d+$/ || $k eq 'description');
1795 $newconf->{$k} = $conf->{$k};
1798 &$snapshot_copy_config($snap, $newconf);
1803 sub snapshot_save_vmstate
{
1804 die "implement me - snapshot_save_vmstate\n";
1807 sub snapshot_prepare
{
1808 my ($vmid, $snapname, $save_vmstate, $comment) = @_;
1812 my $updatefn = sub {
1814 my $conf = load_config
($vmid);
1816 die "you can't take a snapshot if it's a template\n"
1817 if is_template
($conf);
1821 $conf->{lock} = 'snapshot';
1823 die "snapshot name '$snapname' already used\n"
1824 if defined($conf->{snapshots
}->{$snapname});
1826 my $storecfg = PVE
::Storage
::config
();
1828 # workaround until mp snapshots are implemented
1829 my $feature = $snapname eq 'vzdump' ?
'vzdump' : 'snapshot';
1830 die "snapshot feature is not available\n" if !has_feature
($feature, $conf, $storecfg);
1832 $snap = $conf->{snapshots
}->{$snapname} = {};
1834 if ($save_vmstate && check_running
($vmid)) {
1835 snapshot_save_vmstate
($vmid, $conf, $snapname, $storecfg);
1838 &$snapshot_copy_config($conf, $snap);
1840 $snap->{snapstate
} = "prepare";
1841 $snap->{snaptime
} = time();
1842 $snap->{description
} = $comment if $comment;
1844 write_config
($vmid, $conf);
1847 lock_config
($vmid, $updatefn);
1852 sub snapshot_commit
{
1853 my ($vmid, $snapname) = @_;
1855 my $updatefn = sub {
1857 my $conf = load_config
($vmid);
1859 die "missing snapshot lock\n"
1860 if !($conf->{lock} && $conf->{lock} eq 'snapshot');
1862 my $snap = $conf->{snapshots
}->{$snapname};
1863 die "snapshot '$snapname' does not exist\n" if !defined($snap);
1865 die "wrong snapshot state\n"
1866 if !($snap->{snapstate
} && $snap->{snapstate
} eq "prepare");
1868 delete $snap->{snapstate
};
1869 delete $conf->{lock};
1871 my $newconf = &$snapshot_apply_config($conf, $snap);
1873 $newconf->{parent
} = $snapname;
1875 write_config
($vmid, $newconf);
1878 lock_config
($vmid, $updatefn);
1882 my ($feature, $conf, $storecfg, $snapname) = @_;
1885 my $vzdump = $feature eq 'vzdump';
1886 $feature = 'snapshot' if $vzdump;
1888 foreach_mountpoint
($conf, sub {
1889 my ($ms, $mountpoint) = @_;
1891 return if $err; # skip further test
1892 return if $vzdump && $ms ne 'rootfs' && !$mountpoint->{backup
};
1894 $err = 1 if !PVE
::Storage
::volume_has_feature
($storecfg, $feature, $mountpoint->{volume
}, $snapname);
1897 return $err ?
0 : 1;
1900 my $enter_namespace = sub {
1901 my ($vmid, $pid, $which, $type) = @_;
1902 sysopen my $fd, "/proc/$pid/ns/$which", O_RDONLY
1903 or die "failed to open $which namespace of container $vmid: $!\n";
1904 PVE
::Tools
::setns
(fileno($fd), $type)
1905 or die "failed to enter $which namespace of container $vmid: $!\n";
1909 my $do_syncfs = sub {
1910 my ($vmid, $pid, $socket) = @_;
1912 &$enter_namespace($vmid, $pid, 'mnt', PVE
::Tools
::CLONE_NEWNS
);
1914 # Tell the parent process to start reading our /proc/mounts
1915 print {$socket} "go\n";
1918 # Receive /proc/self/mounts
1919 my $mountdata = do { local $/ = undef; <$socket> };
1922 # Now sync all mountpoints...
1923 my $mounts = PVE
::ProcFSTools
::parse_mounts
($mountdata);
1924 foreach my $mp (@$mounts) {
1925 my ($what, $dir, $fs) = @$mp;
1926 next if $fs eq 'fuse.lxcfs';
1927 eval { PVE
::Tools
::sync_mountpoint
($dir); };
1932 sub sync_container_namespace
{
1934 my $pid = find_lxc_pid
($vmid);
1936 # SOCK_DGRAM is nicer for barriers but cannot be slurped
1937 socketpair my $pfd, my $cfd, AF_UNIX
, SOCK_STREAM
, PF_UNSPEC
1938 or die "failed to create socketpair: $!\n";
1941 die "fork failed: $!\n" if !defined($child);
1946 &$do_syncfs($vmid, $pid, $cfd);
1956 die "failed to enter container namespace\n" if $go ne "go\n";
1958 open my $mounts, '<', "/proc/$child/mounts"
1959 or die "failed to open container's /proc/mounts: $!\n";
1960 my $mountdata = do { local $/ = undef; <$mounts> };
1962 print {$pfd} $mountdata;
1965 while (waitpid($child, 0) != $child) {}
1966 die "failed to sync container namespace\n" if $? != 0;
1969 sub check_freeze_needed
{
1970 my ($vmid, $config, $save_vmstate) = @_;
1972 my $ret = check_running
($vmid);
1973 return ($ret, $ret);
1976 sub snapshot_create
{
1977 my ($vmid, $snapname, $save_vmstate, $comment) = @_;
1979 my $snap = snapshot_prepare
($vmid, $snapname, $save_vmstate, $comment);
1981 $save_vmstate = 0 if !$snap->{vmstate
};
1983 my $conf = load_config
($vmid);
1985 my ($running, $freezefs) = check_freeze_needed
($vmid, $conf, $snap->{vmstate
});
1991 PVE
::Tools
::run_command
(['/usr/bin/lxc-freeze', '-n', $vmid]);
1992 sync_container_namespace
($vmid);
1995 my $storecfg = PVE
::Storage
::config
();
1996 foreach_mountpoint
($conf, sub {
1997 my ($ms, $mountpoint) = @_;
1999 return if $snapname eq 'vzdump' && $ms ne 'rootfs' && !$mountpoint->{backup
};
2000 PVE
::Storage
::volume_snapshot
($storecfg, $mountpoint->{volume
}, $snapname);
2001 $drivehash->{$ms} = 1;
2008 eval { PVE
::Tools
::run_command
(['/usr/bin/lxc-unfreeze', '-n', $vmid]); };
2014 warn "snapshot create failed: starting cleanup\n";
2015 eval { snapshot_delete
($vmid, $snapname, 1, $drivehash); };
2020 snapshot_commit
($vmid, $snapname);
2023 # Note: $drivehash is only set when called from snapshot_create.
2024 sub snapshot_delete
{
2025 my ($vmid, $snapname, $force, $drivehash) = @_;
2032 my $unlink_parent = sub {
2033 my ($confref, $new_parent) = @_;
2035 if ($confref->{parent
} && $confref->{parent
} eq $snapname) {
2037 $confref->{parent
} = $new_parent;
2039 delete $confref->{parent
};
2044 my $updatefn = sub {
2045 my ($remove_drive) = @_;
2047 my $conf = load_config
($vmid);
2051 die "you can't delete a snapshot if vm is a template\n"
2052 if is_template
($conf);
2055 $snap = $conf->{snapshots
}->{$snapname};
2057 die "snapshot '$snapname' does not exist\n" if !defined($snap);
2059 # remove parent refs
2061 &$unlink_parent($conf, $snap->{parent
});
2062 foreach my $sn (keys %{$conf->{snapshots
}}) {
2063 next if $sn eq $snapname;
2064 &$unlink_parent($conf->{snapshots
}->{$sn}, $snap->{parent
});
2068 if ($remove_drive) {
2069 if ($remove_drive eq 'vmstate') {
2070 die "implement me - saving vmstate\n";
2072 my $value = $snap->{$remove_drive};
2073 my $mountpoint = $remove_drive eq 'rootfs' ? parse_ct_rootfs
($value, 1) : parse_ct_mountpoint
($value, 1);
2074 delete $snap->{$remove_drive};
2075 add_unused_volume
($snap, $mountpoint->{volume
})
2076 if (!is_volume_in_use
($snap, $mountpoint->{volume
}));
2081 $snap->{snapstate
} = 'delete';
2083 delete $conf->{snapshots
}->{$snapname};
2084 delete $conf->{lock} if $drivehash;
2085 foreach my $volid (@$unused) {
2086 add_unused_volume
($conf, $volid)
2087 if (!is_volume_in_use
($conf, $volid));
2091 write_config
($vmid, $conf);
2094 lock_config
($vmid, $updatefn);
2096 # now remove vmstate file
2097 # never set for LXC!
2098 my $storecfg = PVE
::Storage
::config
();
2100 if ($snap->{vmstate
}) {
2101 die "implement me - saving vmstate\n";
2104 # now remove all volume snapshots
2105 foreach_mountpoint
($snap, sub {
2106 my ($ms, $mountpoint) = @_;
2108 return if $snapname eq 'vzdump' && $ms ne 'rootfs' && !$mountpoint->{backup
};
2109 if (!$drivehash || $drivehash->{$ms}) {
2110 eval { PVE
::Storage
::volume_snapshot_delete
($storecfg, $mountpoint->{volume
}, $snapname); };
2112 die $err if !$force;
2117 # save changes (remove mp from snapshot)
2118 lock_config
($vmid, $updatefn, $ms) if !$force;
2119 push @$unused, $mountpoint->{volume
};
2122 # now cleanup config
2124 lock_config
($vmid, $updatefn);
2127 sub snapshot_rollback
{
2128 my ($vmid, $snapname) = @_;
2132 my $storecfg = PVE
::Storage
::config
();
2134 my $conf = load_config
($vmid);
2136 my $get_snapshot_config = sub {
2138 die "you can't rollback if vm is a template\n" if is_template
($conf);
2140 my $res = $conf->{snapshots
}->{$snapname};
2142 die "snapshot '$snapname' does not exist\n" if !defined($res);
2147 my $snap = &$get_snapshot_config();
2149 foreach_mountpoint
($snap, sub {
2150 my ($ms, $mountpoint) = @_;
2152 PVE
::Storage
::volume_rollback_is_possible
($storecfg, $mountpoint->{volume
}, $snapname);
2155 my $updatefn = sub {
2157 $conf = load_config
($vmid);
2159 $snap = &$get_snapshot_config();
2161 die "unable to rollback to incomplete snapshot (snapstate = $snap->{snapstate})\n"
2162 if $snap->{snapstate
};
2166 PVE
::Tools
::run_command
(['/usr/bin/lxc-stop', '-n', $vmid, '--kill'])
2167 if check_running
($vmid);
2170 die "unable to rollback vm $vmid: vm is running\n"
2171 if check_running
($vmid);
2174 $conf->{lock} = 'rollback';
2176 die "got wrong lock\n" if !($conf->{lock} && $conf->{lock} eq 'rollback');
2177 delete $conf->{lock};
2183 # copy snapshot config to current config
2184 $conf = &$snapshot_apply_config($conf, $snap);
2185 $conf->{parent
} = $snapname;
2188 write_config
($vmid, $conf);
2190 if (!$prepare && $snap->{vmstate
}) {
2191 die "implement me - save vmstate\n";
2195 lock_config
($vmid, $updatefn);
2197 foreach_mountpoint
($snap, sub {
2198 my ($ms, $mountpoint) = @_;
2200 PVE
::Storage
::volume_snapshot_rollback
($storecfg, $mountpoint->{volume
}, $snapname);
2204 lock_config
($vmid, $updatefn);
2207 sub template_create
{
2208 my ($vmid, $conf) = @_;
2210 my $storecfg = PVE
::Storage
::config
();
2212 my $rootinfo = parse_ct_rootfs
($conf->{rootfs
});
2213 my $volid = $rootinfo->{volume
};
2215 die "Template feature is not available for '$volid'\n"
2216 if !PVE
::Storage
::volume_has_feature
($storecfg, 'template', $volid);
2218 PVE
::Storage
::activate_volumes
($storecfg, [$volid]);
2220 my $template_volid = PVE
::Storage
::vdisk_create_base
($storecfg, $volid);
2221 $rootinfo->{volume
} = $template_volid;
2222 $conf->{rootfs
} = print_ct_mountpoint
($rootinfo, 1);
2224 write_config
($vmid, $conf);
2230 return 1 if defined $conf->{template
} && $conf->{template
} == 1;
2233 sub mountpoint_names
{
2236 my @names = ('rootfs');
2238 for (my $i = 0; $i < $MAX_MOUNT_POINTS; $i++) {
2239 push @names, "mp$i";
2242 return $reverse ?
reverse @names : @names;
2246 sub foreach_mountpoint_full
{
2247 my ($conf, $reverse, $func) = @_;
2249 foreach my $key (mountpoint_names
($reverse)) {
2250 my $value = $conf->{$key};
2251 next if !defined($value);
2252 my $mountpoint = $key eq 'rootfs' ? parse_ct_rootfs
($value, 1) : parse_ct_mountpoint
($value, 1);
2253 next if !defined($mountpoint);
2255 &$func($key, $mountpoint);
2259 sub foreach_mountpoint
{
2260 my ($conf, $func) = @_;
2262 foreach_mountpoint_full
($conf, 0, $func);
2265 sub foreach_mountpoint_reverse
{
2266 my ($conf, $func) = @_;
2268 foreach_mountpoint_full
($conf, 1, $func);
2271 sub check_ct_modify_config_perm
{
2272 my ($rpcenv, $authuser, $vmid, $pool, $newconf, $delete) = @_;
2274 return 1 if $authuser eq 'root@pam';
2277 my ($opt, $delete) = @_;
2278 if ($opt eq 'cpus' || $opt eq 'cpuunits' || $opt eq 'cpulimit') {
2279 $rpcenv->check_vm_perm($authuser, $vmid, $pool, ['VM.Config.CPU']);
2280 } elsif ($opt eq 'rootfs' || $opt =~ /^mp\d+$/) {
2281 $rpcenv->check_vm_perm($authuser, $vmid, $pool, ['VM.Config.Disk']);
2283 my $data = $opt eq 'rootfs' ? parse_ct_rootfs
($newconf->{$opt})
2284 : parse_ct_mountpoint
($newconf->{$opt});
2285 raise_perm_exc
("mountpoint type $data->{type}") if $data->{type
} ne 'volume';
2286 } elsif ($opt eq 'memory' || $opt eq 'swap') {
2287 $rpcenv->check_vm_perm($authuser, $vmid, $pool, ['VM.Config.Memory']);
2288 } elsif ($opt =~ m/^net\d+$/ || $opt eq 'nameserver' ||
2289 $opt eq 'searchdomain' || $opt eq 'hostname') {
2290 $rpcenv->check_vm_perm($authuser, $vmid, $pool, ['VM.Config.Network']);
2292 $rpcenv->check_vm_perm($authuser, $vmid, $pool, ['VM.Config.Options']);
2296 foreach my $opt (keys %$newconf) {
2299 foreach my $opt (@$delete) {
2307 my ($vmid, $storage_cfg, $conf, $noerr) = @_;
2309 my $rootdir = "/var/lib/lxc/$vmid/rootfs";
2310 my $volid_list = get_vm_volumes
($conf);
2312 foreach_mountpoint_reverse
($conf, sub {
2313 my ($ms, $mountpoint) = @_;
2315 my $volid = $mountpoint->{volume
};
2316 my $mount = $mountpoint->{mp
};
2318 return if !$volid || !$mount;
2320 my $mount_path = "$rootdir/$mount";
2321 $mount_path =~ s!/+!/!g;
2323 return if !PVE
::ProcFSTools
::is_mounted
($mount_path);
2326 PVE
::Tools
::run_command
(['umount', '-d', $mount_path]);
2339 my ($vmid, $storage_cfg, $conf) = @_;
2341 my $rootdir = "/var/lib/lxc/$vmid/rootfs";
2342 File
::Path
::make_path
($rootdir);
2344 my $volid_list = get_vm_volumes
($conf);
2345 PVE
::Storage
::activate_volumes
($storage_cfg, $volid_list);
2348 foreach_mountpoint
($conf, sub {
2349 my ($ms, $mountpoint) = @_;
2351 mountpoint_mount
($mountpoint, $rootdir, $storage_cfg);
2355 warn "mounting container failed\n";
2356 umount_all
($vmid, $storage_cfg, $conf, 1);
2364 sub mountpoint_mount_path
{
2365 my ($mountpoint, $storage_cfg, $snapname) = @_;
2367 return mountpoint_mount
($mountpoint, undef, $storage_cfg, $snapname);
2370 my $check_mount_path = sub {
2372 $path = File
::Spec-
>canonpath($path);
2373 my $real = Cwd
::realpath
($path);
2374 if ($real ne $path) {
2375 die "mount path modified by symlink: $path != $real";
2384 if ($line =~ m
@^(/dev/loop\d
+):@) {
2388 my $cmd = ['losetup', '--associated', $path];
2389 PVE
::Tools
::run_command
($cmd, outfunc
=> $parser);
2393 # Run a function with a file attached to a loop device.
2394 # The loop device is always detached afterwards (or set to autoclear).
2395 # Returns the loop device.
2396 sub run_with_loopdev
{
2397 my ($func, $file) = @_;
2401 if ($line =~ m
@^(/dev/loop\d
+)$@) {
2405 PVE
::Tools
::run_command
(['losetup', '--show', '-f', $file], outfunc
=> $parser);
2406 die "failed to setup loop device for $file\n" if !$device;
2407 eval { &$func($device); };
2409 PVE
::Tools
::run_command
(['losetup', '-d', $device]);
2415 my ($dir, $dest, $ro, @extra_opts) = @_;
2416 PVE
::Tools
::run_command
(['mount', '-o', 'bind', @extra_opts, $dir, $dest]);
2418 eval { PVE
::Tools
::run_command
(['mount', '-o', 'bind,remount,ro', $dest]); };
2420 warn "bindmount error\n";
2421 # don't leave writable bind-mounts behind...
2422 PVE
::Tools
::run_command
(['umount', $dest]);
2428 # use $rootdir = undef to just return the corresponding mount path
2429 sub mountpoint_mount
{
2430 my ($mountpoint, $rootdir, $storage_cfg, $snapname) = @_;
2432 my $volid = $mountpoint->{volume
};
2433 my $mount = $mountpoint->{mp
};
2434 my $type = $mountpoint->{type
};
2435 my $quota = !$snapname && !$mountpoint->{ro
} && $mountpoint->{quota
};
2438 return if !$volid || !$mount;
2442 if (defined($rootdir)) {
2443 $rootdir =~ s!/+$!!;
2444 $mount_path = "$rootdir/$mount";
2445 $mount_path =~ s!/+!/!g;
2446 &$check_mount_path($mount_path);
2447 File
::Path
::mkpath
($mount_path);
2450 my ($storage, $volname) = PVE
::Storage
::parse_volume_id
($volid, 1);
2452 die "unknown snapshot path for '$volid'" if !$storage && defined($snapname);
2455 if (defined($mountpoint->{acl
})) {
2456 $optstring .= ($mountpoint->{acl
} ?
'acl' : 'noacl');
2458 my $readonly = $mountpoint->{ro
};
2460 my @extra_opts = ('-o', $optstring);
2464 my $scfg = PVE
::Storage
::storage_config
($storage_cfg, $storage);
2465 my $path = PVE
::Storage
::path
($storage_cfg, $volid, $snapname);
2467 my ($vtype, undef, undef, undef, undef, $isBase, $format) =
2468 PVE
::Storage
::parse_volname
($storage_cfg, $volid);
2470 $format = 'iso' if $vtype eq 'iso'; # allow to handle iso files
2472 if ($format eq 'subvol') {
2475 if ($scfg->{type
} eq 'zfspool') {
2476 my $path_arg = $path;
2477 $path_arg =~ s!^/+!!;
2478 PVE
::Tools
::run_command
(['mount', '-o', 'ro', @extra_opts, '-t', 'zfs', $path_arg, $mount_path]);
2480 die "cannot mount subvol snapshots for storage type '$scfg->{type}'\n";
2483 bindmount
($path, $mount_path, $readonly, @extra_opts);
2484 warn "cannot enable quota control for bind mounted subvolumes\n" if $quota;
2487 return wantarray ?
($path, 0, $mounted_dev) : $path;
2488 } elsif ($format eq 'raw' || $format eq 'iso') {
2492 if ($format eq 'iso') {
2493 PVE
::Tools
::run_command
(['mount', '-o', 'ro', @extra_opts, $path, $mount_path]);
2494 } elsif ($isBase || defined($snapname)) {
2495 PVE
::Tools
::run_command
(['mount', '-o', 'ro,noload', @extra_opts, $path, $mount_path]);
2498 push @extra_opts, '-o', 'usrjquota=aquota.user,grpjquota=aquota.group,jqfmt=vfsv0';
2500 push @extra_opts, '-o', 'ro' if $readonly;
2501 PVE
::Tools
::run_command
(['mount', @extra_opts, $path, $mount_path]);
2505 my $use_loopdev = 0;
2506 if ($scfg->{path
}) {
2507 $mounted_dev = run_with_loopdev
($domount, $path);
2509 } elsif ($scfg->{type
} eq 'drbd' || $scfg->{type
} eq 'lvm' ||
2510 $scfg->{type
} eq 'rbd' || $scfg->{type
} eq 'lvmthin') {
2511 $mounted_dev = $path;
2514 die "unsupported storage type '$scfg->{type}'\n";
2516 return wantarray ?
($path, $use_loopdev, $mounted_dev) : $path;
2518 die "unsupported image format '$format'\n";
2520 } elsif ($type eq 'device') {
2521 push @extra_opts, '-o', 'ro' if $readonly;
2522 PVE
::Tools
::run_command
(['mount', @extra_opts, $volid, $mount_path]) if $mount_path;
2523 return wantarray ?
($volid, 0, $volid) : $volid;
2524 } elsif ($type eq 'bind') {
2525 die "directory '$volid' does not exist\n" if ! -d
$volid;
2526 &$check_mount_path($volid);
2527 bindmount
($volid, $mount_path, $readonly, @extra_opts) if $mount_path;
2528 warn "cannot enable quota control for bind mounts\n" if $quota;
2529 return wantarray ?
($volid, 0, undef) : $volid;
2532 die "unsupported storage";
2535 sub get_vm_volumes
{
2536 my ($conf, $excludes) = @_;
2540 foreach_mountpoint
($conf, sub {
2541 my ($ms, $mountpoint) = @_;
2543 return if $excludes && $ms eq $excludes;
2545 my $volid = $mountpoint->{volume
};
2547 return if !$volid || $mountpoint->{type
} ne 'volume';
2549 my ($sid, $volname) = PVE
::Storage
::parse_volume_id
($volid, 1);
2552 push @$vollist, $volid;
2559 my ($dev, $rootuid, $rootgid) = @_;
2561 PVE
::Tools
::run_command
(['mkfs.ext4', '-O', 'mmp',
2562 '-E', "root_owner=$rootuid:$rootgid",
2567 my ($storage_cfg, $volid, $rootuid, $rootgid) = @_;
2569 if ($volid =~ m!^/dev/.+!) {
2574 my ($storage, $volname) = PVE
::Storage
::parse_volume_id
($volid, 1);
2576 die "cannot format volume '$volid' with no storage\n" if !$storage;
2578 PVE
::Storage
::activate_volumes
($storage_cfg, [$volid]);
2580 my $path = PVE
::Storage
::path
($storage_cfg, $volid);
2582 my ($vtype, undef, undef, undef, undef, $isBase, $format) =
2583 PVE
::Storage
::parse_volname
($storage_cfg, $volid);
2585 die "cannot format volume '$volid' (format == $format)\n"
2586 if $format ne 'raw';
2588 mkfs
($path, $rootuid, $rootgid);
2592 my ($storecfg, $vollist) = @_;
2594 foreach my $volid (@$vollist) {
2595 eval { PVE
::Storage
::vdisk_free
($storecfg, $volid); };
2601 my ($storecfg, $vmid, $settings, $conf) = @_;
2606 my (undef, $rootuid, $rootgid) = PVE
::LXC
::parse_id_maps
($conf);
2607 my $chown_vollist = [];
2609 foreach_mountpoint
($settings, sub {
2610 my ($ms, $mountpoint) = @_;
2612 my $volid = $mountpoint->{volume
};
2613 my $mp = $mountpoint->{mp
};
2615 my ($storage, $volname) = PVE
::Storage
::parse_volume_id
($volid, 1);
2617 if ($storage && ($volid =~ m/^([^:\s]+):(\d+(\.\d+)?)$/)) {
2618 my ($storeid, $size_gb) = ($1, $2);
2620 my $size_kb = int(${size_gb
}*1024) * 1024;
2622 my $scfg = PVE
::Storage
::storage_config
($storecfg, $storage);
2623 # fixme: use better naming ct-$vmid-disk-X.raw?
2625 if ($scfg->{type
} eq 'dir' || $scfg->{type
} eq 'nfs') {
2627 $volid = PVE
::Storage
::vdisk_alloc
($storecfg, $storage, $vmid, 'raw',
2629 format_disk
($storecfg, $volid, $rootuid, $rootgid);
2631 $volid = PVE
::Storage
::vdisk_alloc
($storecfg, $storage, $vmid, 'subvol',
2633 push @$chown_vollist, $volid;
2635 } elsif ($scfg->{type
} eq 'zfspool') {
2637 $volid = PVE
::Storage
::vdisk_alloc
($storecfg, $storage, $vmid, 'subvol',
2639 push @$chown_vollist, $volid;
2640 } elsif ($scfg->{type
} eq 'drbd' || $scfg->{type
} eq 'lvm' || $scfg->{type
} eq 'lvmthin') {
2642 $volid = PVE
::Storage
::vdisk_alloc
($storecfg, $storage, $vmid, 'raw', undef, $size_kb);
2643 format_disk
($storecfg, $volid, $rootuid, $rootgid);
2645 } elsif ($scfg->{type
} eq 'rbd') {
2647 die "krbd option must be enabled on storage type '$scfg->{type}'\n" if !$scfg->{krbd
};
2648 $volid = PVE
::Storage
::vdisk_alloc
($storecfg, $storage, $vmid, 'raw', undef, $size_kb);
2649 format_disk
($storecfg, $volid, $rootuid, $rootgid);
2651 die "unable to create containers on storage type '$scfg->{type}'\n";
2653 push @$vollist, $volid;
2654 $mountpoint->{volume
} = $volid;
2655 $mountpoint->{size
} = $size_kb * 1024;
2656 $conf->{$ms} = print_ct_mountpoint
($mountpoint, $ms eq 'rootfs');
2658 # use specified/existing volid/dir/device
2659 $conf->{$ms} = print_ct_mountpoint
($mountpoint, $ms eq 'rootfs');
2663 PVE
::Storage
::activate_volumes
($storecfg, $chown_vollist, undef);
2664 foreach my $volid (@$chown_vollist) {
2665 my $path = PVE
::Storage
::path
($storecfg, $volid, undef);
2666 chown($rootuid, $rootgid, $path);
2668 PVE
::Storage
::deactivate_volumes
($storecfg, $chown_vollist, undef);
2670 # free allocated images on error
2672 destroy_disks
($storecfg, $vollist);
2678 # bash completion helper
2680 sub complete_os_templates
{
2681 my ($cmdname, $pname, $cvalue) = @_;
2683 my $cfg = PVE
::Storage
::config
();
2687 if ($cvalue =~ m/^([^:]+):/) {
2691 my $vtype = $cmdname eq 'restore' ?
'backup' : 'vztmpl';
2692 my $data = PVE
::Storage
::template_list
($cfg, $storeid, $vtype);
2695 foreach my $id (keys %$data) {
2696 foreach my $item (@{$data->{$id}}) {
2697 push @$res, $item->{volid
} if defined($item->{volid
});
2704 my $complete_ctid_full = sub {
2707 my $idlist = vmstatus
();
2709 my $active_hash = list_active_containers
();
2713 foreach my $id (keys %$idlist) {
2714 my $d = $idlist->{$id};
2715 if (defined($running)) {
2716 next if $d->{template
};
2717 next if $running && !$active_hash->{$id};
2718 next if !$running && $active_hash->{$id};
2727 return &$complete_ctid_full();
2730 sub complete_ctid_stopped
{
2731 return &$complete_ctid_full(0);
2734 sub complete_ctid_running
{
2735 return &$complete_ctid_full(1);
2745 my $lxc = $conf->{lxc
};
2746 foreach my $entry (@$lxc) {
2747 my ($key, $value) = @$entry;
2748 next if $key ne 'lxc.id_map';
2749 if ($value =~ /^([ug])\s+(\d+)\s+(\d+)\s+(\d+)\s*$/) {
2750 my ($type, $ct, $host, $length) = ($1, $2, $3, $4);
2751 push @$id_map, [$type, $ct, $host, $length];
2753 $rootuid = $host if $type eq 'u';
2754 $rootgid = $host if $type eq 'g';
2757 die "failed to parse id_map: $value\n";
2761 if (!@$id_map && $conf->{unprivileged
}) {
2762 # Should we read them from /etc/subuid?
2763 $id_map = [ ['u', '0', '100000', '65536'],
2764 ['g', '0', '100000', '65536'] ];
2765 $rootuid = $rootgid = 100000;
2768 return ($id_map, $rootuid, $rootgid);
2771 sub userns_command
{
2774 return ['lxc-usernsexec', (map { ('-m', join(':', @$_)) } @$id_map), '--'];