]>
git.proxmox.com Git - pve-container.git/blob - src/PVE/LXC/Create.pm
1 package PVE
::LXC
::Create
;
12 use PVE
::VZDump
::ConvertOVZ
;
15 sub next_free_nbd_dev
{
17 for(my $i = 0;;$i++) {
18 my $dev = "/dev/nbd$i";
20 next if -f
"/sys/block/nbd$i/pid"; # busy
23 die "unable to find free nbd device\n";
27 my ($archive, $rootdir, $conf, $no_unpack_error) = @_;
29 my ($id_map, $rootuid, $rootgid) = PVE
::LXC
::parse_id_maps
($conf);
30 my $userns_cmd = PVE
::LXC
::userns_command
($id_map);
32 my $cmd = [@$userns_cmd, 'tar', 'xpf', $archive, '--totals',
33 @$PVE::LXC
::COMMON_TAR_FLAGS
,
36 # skip-old-files doesn't have anything to do with time (old/new), but is
37 # simply -k (annoyingly also called --keep-old-files) without the 'treat
38 # existing files as errors' part... iow. it's bsdtar's interpretation of -k
40 push @$cmd, '--skip-old-files';
41 push @$cmd, '--anchored';
42 push @$cmd, '--exclude' , './dev/*';
44 if ($archive eq '-') {
45 print "extracting archive from STDIN\n";
46 eval { PVE
::Tools
::run_command
($cmd, input
=> "<&STDIN"); };
48 print "extracting archive '$archive'\n";
49 eval { PVE
::Tools
::run_command
($cmd); };
51 die $@ if $@ && !$no_unpack_error;
53 # determine file type of /usr/bin/file itself to get guests' architecture
54 $cmd = [@$userns_cmd, '/usr/bin/file', '-b', '-L', "$rootdir/bin/sh"];
55 PVE
::Tools
::run_command
($cmd, outfunc
=> sub {
56 shift =~ /^ELF (\d{2}-bit)/; # safely assumes x86 linux
58 $conf->{'arch'} = 'amd64'; # defaults to 64bit
59 if(defined($arch_str)) {
60 $conf->{'arch'} = 'i386' if $arch_str =~ /32/;
61 print "Detected container architecture: $conf->{'arch'}\n";
63 print "CT architecture detection failed, falling back to amd64.\n" .
64 "Edit the config in /etc/pve/nodes/{node}/lxc/{vmid}/config " .
65 "to set another architecture.\n";
70 sub tar_archive_search_conf
{
73 die "ERROR: file '$archive' does not exist\n" if ! -f
$archive;
75 my $pid = open(my $fh, '-|', 'tar', 'tf', $archive) ||
76 die "unable to open file '$archive'\n";
79 while (defined($file = <$fh>)) {
80 if ($file =~ m!^(\./etc/vzdump/(pct|vps)\.conf)$!) {
90 die "ERROR: archive contains no configuration file\n" if !$file;
99 my $conf_file = tar_archive_search_conf
($archive);
107 PVE
::Tools
::run_command
(['tar', '-xpOf', $archive, $conf_file, '--occurrence'], outfunc
=> $out);
112 if ($conf_file =~ m/pct\.conf/) {
114 $conf = PVE
::LXC
::Config
::parse_pct_config
("/lxc/0.conf" , $raw);
116 delete $conf->{snapshots
};
117 delete $conf->{template
}; # restored CT is never a template
119 PVE
::LXC
::Config-
>foreach_mountpoint($conf, sub {
120 my ($ms, $mountpoint) = @_;
121 $mp_param->{$ms} = $conf->{$ms};
124 } elsif ($conf_file =~ m/vps\.conf/) {
126 ($conf, $mp_param) = PVE
::VZDump
::ConvertOVZ
::convert_ovz
($raw);
130 die "internal error";
133 return wantarray ?
($conf, $mp_param) : $conf;
136 sub restore_configuration
{
137 my ($vmid, $rootdir, $conf) = @_;
139 # restore: try to extract configuration from archive
141 my $pct_cfg_fn = "$rootdir/etc/vzdump/pct.conf";
142 my $pct_fwcfg_fn = "$rootdir/etc/vzdump/pct.fw";
143 my $ovz_cfg_fn = "$rootdir/etc/vzdump/vps.conf";
144 if (-f
$pct_cfg_fn) {
145 my $raw = PVE
::Tools
::file_get_contents
($pct_cfg_fn);
146 my $oldconf = PVE
::LXC
::Config
::parse_pct_config
("/lxc/$vmid.conf", $raw);
148 foreach my $key (keys %$oldconf) {
149 next if $key eq 'digest' || $key eq 'rootfs' || $key eq 'snapshots' || $key eq 'unprivileged' || $key eq 'parent';
150 next if $key =~ /^mp\d+$/; # don't recover mountpoints
151 next if $key =~ /^unused\d+$/; # don't recover unused disks
152 $conf->{$key} = $oldconf->{$key} if !defined($conf->{$key});
156 if (-f
$pct_fwcfg_fn) {
157 my $pve_firewall_dir = '/etc/pve/firewall';
158 mkdir $pve_firewall_dir; # make sure the directory exists
159 PVE
::Tools
::file_copy
($pct_fwcfg_fn, "${pve_firewall_dir}/$vmid.fw");
160 unlink $pct_fwcfg_fn;
163 } elsif (-f
$ovz_cfg_fn) {
164 print "###########################################################\n";
165 print "Converting OpenVZ configuration to LXC.\n";
166 print "Please check the configuration and reconfigure the network.\n";
167 print "###########################################################\n";
169 my $lxc_setup = PVE
::LXC
::Setup-
>new($conf, $rootdir); # detect OS
170 $conf->{ostype
} = $lxc_setup->{conf
}->{ostype
};
171 my $raw = PVE
::Tools
::file_get_contents
($ovz_cfg_fn);
172 my $oldconf = PVE
::VZDump
::ConvertOVZ
::convert_ovz
($raw);
173 foreach my $key (keys %$oldconf) {
174 $conf->{$key} = $oldconf->{$key} if !defined($conf->{$key});
179 print "###########################################################\n";
180 print "Backup archive does not contain any configuration\n";
181 print "###########################################################\n";