mirror of
git://git.proxmox.com/git/pve-storage.git
synced 2025-01-25 06:03:53 +03:00
90778f7cdd
and refactored usages for .log and .notes with them. At some parts in the test case code I had to source new variables to shorten the line length to not exceed the 100 column line limit. Signed-off-by: Daniel Tschlatscher <d.tschlatscher@proxmox.com> Reviewed-by: Fabian Ebner <f.ebner@proxmox.com> Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>
1651 lines
45 KiB
Perl
1651 lines
45 KiB
Perl
package PVE::Storage::Plugin;
|
|
|
|
use strict;
|
|
use warnings;
|
|
|
|
use Encode qw(decode);
|
|
use Fcntl ':mode';
|
|
use File::chdir;
|
|
use File::Path;
|
|
use File::Basename;
|
|
use File::stat qw();
|
|
|
|
use PVE::Tools qw(run_command);
|
|
use PVE::JSONSchema qw(get_standard_option register_standard_option);
|
|
use PVE::Cluster qw(cfs_register_file);
|
|
|
|
use JSON;
|
|
|
|
use base qw(PVE::SectionConfig);
|
|
|
|
use constant COMPRESSOR_RE => 'gz|lzo|zst';
|
|
|
|
use constant LOG_EXT => ".log";
|
|
use constant NOTES_EXT => ".notes";
|
|
|
|
our @COMMON_TAR_FLAGS = qw(
|
|
--one-file-system
|
|
-p --sparse --numeric-owner --acls
|
|
--xattrs --xattrs-include=user.* --xattrs-include=security.capability
|
|
--warning=no-file-ignored --warning=no-xattr-write
|
|
);
|
|
|
|
our @SHARED_STORAGE = (
|
|
'iscsi',
|
|
'nfs',
|
|
'cifs',
|
|
'rbd',
|
|
'cephfs',
|
|
'iscsidirect',
|
|
'glusterfs',
|
|
'zfs',
|
|
'drbd',
|
|
'pbs',
|
|
);
|
|
|
|
our $QCOW2_PREALLOCATION = {
|
|
off => 1,
|
|
metadata => 1,
|
|
falloc => 1,
|
|
full => 1,
|
|
};
|
|
|
|
our $RAW_PREALLOCATION = {
|
|
off => 1,
|
|
falloc => 1,
|
|
full => 1,
|
|
};
|
|
|
|
our $MAX_VOLUMES_PER_GUEST = 1024;
|
|
|
|
cfs_register_file ('storage.cfg',
|
|
sub { __PACKAGE__->parse_config(@_); },
|
|
sub { __PACKAGE__->write_config(@_); });
|
|
|
|
my %prune_option = (
|
|
optional => 1,
|
|
type => 'integer', minimum => '0',
|
|
format_description => 'N',
|
|
);
|
|
|
|
our $prune_backups_format = {
|
|
'keep-all' => {
|
|
type => 'boolean',
|
|
description => 'Keep all backups. Conflicts with the other options when true.',
|
|
optional => 1,
|
|
},
|
|
'keep-last' => {
|
|
%prune_option,
|
|
description => 'Keep the last <N> backups.',
|
|
},
|
|
'keep-hourly' => {
|
|
%prune_option,
|
|
description => 'Keep backups for the last <N> different hours. If there is more' .
|
|
'than one backup for a single hour, only the latest one is kept.'
|
|
},
|
|
'keep-daily' => {
|
|
%prune_option,
|
|
description => 'Keep backups for the last <N> different days. If there is more' .
|
|
'than one backup for a single day, only the latest one is kept.'
|
|
},
|
|
'keep-weekly' => {
|
|
%prune_option,
|
|
description => 'Keep backups for the last <N> different weeks. If there is more' .
|
|
'than one backup for a single week, only the latest one is kept.'
|
|
},
|
|
'keep-monthly' => {
|
|
%prune_option,
|
|
description => 'Keep backups for the last <N> different months. If there is more' .
|
|
'than one backup for a single month, only the latest one is kept.'
|
|
},
|
|
'keep-yearly' => {
|
|
%prune_option,
|
|
description => 'Keep backups for the last <N> different years. If there is more' .
|
|
'than one backup for a single year, only the latest one is kept.'
|
|
},
|
|
};
|
|
PVE::JSONSchema::register_format('prune-backups', $prune_backups_format, \&validate_prune_backups);
|
|
sub validate_prune_backups {
|
|
my ($prune_backups) = @_;
|
|
|
|
my $res = { $prune_backups->%* };
|
|
|
|
my $keep_all = delete $res->{'keep-all'};
|
|
|
|
if (scalar(grep { $_ > 0 } values %{$res}) == 0) {
|
|
$res = { 'keep-all' => 1 };
|
|
} elsif ($keep_all) {
|
|
die "keep-all cannot be set together with other options.\n";
|
|
}
|
|
|
|
return $res;
|
|
}
|
|
register_standard_option('prune-backups', {
|
|
description => "The retention options with shorter intervals are processed first " .
|
|
"with --keep-last being the very first one. Each option covers a " .
|
|
"specific period of time. We say that backups within this period " .
|
|
"are covered by this option. The next option does not take care " .
|
|
"of already covered backups and only considers older backups.",
|
|
optional => 1,
|
|
type => 'string',
|
|
format => 'prune-backups',
|
|
});
|
|
|
|
my $defaultData = {
|
|
propertyList => {
|
|
type => { description => "Storage type." },
|
|
storage => get_standard_option('pve-storage-id',
|
|
{ completion => \&PVE::Storage::complete_storage }),
|
|
nodes => get_standard_option('pve-node-list', { optional => 1 }),
|
|
content => {
|
|
description => "Allowed content types.\n\nNOTE: the value " .
|
|
"'rootdir' is used for Containers, and value 'images' for VMs.\n",
|
|
type => 'string', format => 'pve-storage-content-list',
|
|
optional => 1,
|
|
completion => \&PVE::Storage::complete_content_type,
|
|
},
|
|
disable => {
|
|
description => "Flag to disable the storage.",
|
|
type => 'boolean',
|
|
optional => 1,
|
|
},
|
|
maxfiles => {
|
|
description => "Deprecated: use 'prune-backups' instead. " .
|
|
"Maximal number of backup files per VM. Use '0' for unlimited.",
|
|
type => 'integer',
|
|
minimum => 0,
|
|
optional => 1,
|
|
},
|
|
'prune-backups' => get_standard_option('prune-backups'),
|
|
'max-protected-backups' => {
|
|
description => "Maximal number of protected backups per guest. Use '-1' for unlimited.",
|
|
type => 'integer',
|
|
minimum => -1,
|
|
optional => 1,
|
|
default => "Unlimited for users with Datastore.Allocate privilege, 5 for other users",
|
|
},
|
|
shared => {
|
|
description => "Mark storage as shared.",
|
|
type => 'boolean',
|
|
optional => 1,
|
|
},
|
|
'format' => {
|
|
description => "Default image format.",
|
|
type => 'string', format => 'pve-storage-format',
|
|
optional => 1,
|
|
},
|
|
preallocation => {
|
|
description => "Preallocation mode for raw and qcow2 images. " .
|
|
"Using 'metadata' on raw images results in preallocation=off.",
|
|
type => 'string', enum => ['off', 'metadata', 'falloc', 'full'],
|
|
default => 'metadata',
|
|
optional => 1,
|
|
},
|
|
},
|
|
};
|
|
|
|
sub content_hash_to_string {
|
|
my $hash = shift;
|
|
|
|
my @cta;
|
|
foreach my $ct (keys %$hash) {
|
|
push @cta, $ct if $hash->{$ct};
|
|
}
|
|
|
|
return join(',', @cta);
|
|
}
|
|
|
|
sub valid_content_types {
|
|
my ($type) = @_;
|
|
|
|
my $def = $defaultData->{plugindata}->{$type};
|
|
|
|
return {} if !$def;
|
|
|
|
return $def->{content}->[0];
|
|
}
|
|
|
|
sub default_format {
|
|
my ($scfg) = @_;
|
|
|
|
my $type = $scfg->{type};
|
|
my $def = $defaultData->{plugindata}->{$type};
|
|
|
|
my $def_format = 'raw';
|
|
my $valid_formats = [ $def_format ];
|
|
|
|
if (defined($def->{format})) {
|
|
$def_format = $scfg->{format} || $def->{format}->[1];
|
|
$valid_formats = [ sort keys %{$def->{format}->[0]} ];
|
|
}
|
|
|
|
return wantarray ? ($def_format, $valid_formats) : $def_format;
|
|
}
|
|
|
|
PVE::JSONSchema::register_format('pve-storage-path', \&verify_path);
|
|
sub verify_path {
|
|
my ($path, $noerr) = @_;
|
|
|
|
# fixme: exclude more shell meta characters?
|
|
# we need absolute paths
|
|
if ($path !~ m|^/[^;\(\)]+|) {
|
|
return undef if $noerr;
|
|
die "value does not look like a valid absolute path\n";
|
|
}
|
|
return $path;
|
|
}
|
|
|
|
PVE::JSONSchema::register_format('pve-storage-server', \&verify_server);
|
|
sub verify_server {
|
|
my ($server, $noerr) = @_;
|
|
|
|
if (!(PVE::JSONSchema::pve_verify_ip($server, 1) ||
|
|
PVE::JSONSchema::pve_verify_dns_name($server, 1)))
|
|
{
|
|
return undef if $noerr;
|
|
die "value does not look like a valid server name or IP address\n";
|
|
}
|
|
return $server;
|
|
}
|
|
|
|
PVE::JSONSchema::register_format('pve-storage-vgname', \&parse_lvm_name);
|
|
sub parse_lvm_name {
|
|
my ($name, $noerr) = @_;
|
|
|
|
if ($name !~ m/^[a-z0-9][a-z0-9\-\_\.]*[a-z0-9]$/i) {
|
|
return undef if $noerr;
|
|
die "lvm name '$name' contains illegal characters\n";
|
|
}
|
|
|
|
return $name;
|
|
}
|
|
|
|
# fixme: do we need this
|
|
#PVE::JSONSchema::register_format('pve-storage-portal', \&verify_portal);
|
|
#sub verify_portal {
|
|
# my ($portal, $noerr) = @_;
|
|
#
|
|
# # IP with optional port
|
|
# if ($portal !~ m/^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}(:\d+)?$/) {
|
|
# return undef if $noerr;
|
|
# die "value does not look like a valid portal address\n";
|
|
# }
|
|
# return $portal;
|
|
#}
|
|
|
|
PVE::JSONSchema::register_format('pve-storage-portal-dns', \&verify_portal_dns);
|
|
sub verify_portal_dns {
|
|
my ($portal, $noerr) = @_;
|
|
|
|
# IP or DNS name with optional port
|
|
if (!PVE::Tools::parse_host_and_port($portal)) {
|
|
return undef if $noerr;
|
|
die "value does not look like a valid portal address\n";
|
|
}
|
|
return $portal;
|
|
}
|
|
|
|
PVE::JSONSchema::register_format('pve-storage-content', \&verify_content);
|
|
sub verify_content {
|
|
my ($ct, $noerr) = @_;
|
|
|
|
my $valid_content = valid_content_types('dir'); # dir includes all types
|
|
|
|
if (!$valid_content->{$ct}) {
|
|
return undef if $noerr;
|
|
die "invalid content type '$ct'\n";
|
|
}
|
|
|
|
return $ct;
|
|
}
|
|
|
|
PVE::JSONSchema::register_format('pve-storage-format', \&verify_format);
|
|
sub verify_format {
|
|
my ($fmt, $noerr) = @_;
|
|
|
|
if ($fmt !~ m/(raw|qcow2|vmdk|subvol)/) {
|
|
return undef if $noerr;
|
|
die "invalid format '$fmt'\n";
|
|
}
|
|
|
|
return $fmt;
|
|
}
|
|
|
|
PVE::JSONSchema::register_format('pve-storage-options', \&verify_options);
|
|
sub verify_options {
|
|
my ($value, $noerr) = @_;
|
|
|
|
# mount options (see man fstab)
|
|
if ($value !~ m/^\S+$/) {
|
|
return undef if $noerr;
|
|
die "invalid options '$value'\n";
|
|
}
|
|
|
|
return $value;
|
|
}
|
|
|
|
PVE::JSONSchema::register_format('pve-volume-id', \&parse_volume_id);
|
|
sub parse_volume_id {
|
|
my ($volid, $noerr) = @_;
|
|
|
|
if ($volid =~ m/^([a-z][a-z0-9\-\_\.]*[a-z0-9]):(.+)$/i) {
|
|
return wantarray ? ($1, $2) : $1;
|
|
}
|
|
return undef if $noerr;
|
|
die "unable to parse volume ID '$volid'\n";
|
|
}
|
|
|
|
|
|
sub private {
|
|
return $defaultData;
|
|
}
|
|
|
|
sub parse_section_header {
|
|
my ($class, $line) = @_;
|
|
|
|
if ($line =~ m/^(\S+):\s*(\S+)\s*$/) {
|
|
my ($type, $storeid) = (lc($1), $2);
|
|
my $errmsg = undef; # set if you want to skip whole section
|
|
eval { PVE::JSONSchema::parse_storage_id($storeid); };
|
|
$errmsg = $@ if $@;
|
|
my $config = {}; # to return additional attributes
|
|
return ($type, $storeid, $errmsg, $config);
|
|
}
|
|
return undef;
|
|
}
|
|
|
|
sub decode_value {
|
|
my ($class, $type, $key, $value) = @_;
|
|
|
|
my $def = $defaultData->{plugindata}->{$type};
|
|
|
|
if ($key eq 'content') {
|
|
my $valid_content = $def->{content}->[0];
|
|
|
|
my $res = {};
|
|
|
|
foreach my $c (PVE::Tools::split_list($value)) {
|
|
if (!$valid_content->{$c}) {
|
|
warn "storage does not support content type '$c'\n";
|
|
next;
|
|
}
|
|
$res->{$c} = 1;
|
|
}
|
|
|
|
if ($res->{none} && scalar (keys %$res) > 1) {
|
|
die "unable to combine 'none' with other content types\n";
|
|
}
|
|
|
|
if (scalar(keys $res->%*) == 0 && !$valid_content->{none}) {
|
|
die "storage does not support content type 'none'\n";
|
|
}
|
|
|
|
return $res;
|
|
} elsif ($key eq 'format') {
|
|
my $valid_formats = $def->{format}->[0];
|
|
|
|
if (!$valid_formats->{$value}) {
|
|
warn "storage does not support format '$value'\n";
|
|
next;
|
|
}
|
|
|
|
return $value;
|
|
} elsif ($key eq 'nodes') {
|
|
my $res = {};
|
|
|
|
foreach my $node (PVE::Tools::split_list($value)) {
|
|
if (PVE::JSONSchema::pve_verify_node_name($node)) {
|
|
$res->{$node} = 1;
|
|
}
|
|
}
|
|
|
|
# fixme:
|
|
# no node restrictions for local storage
|
|
#if ($storeid && $storeid eq 'local' && scalar(keys(%$res))) {
|
|
# die "storage '$storeid' does not allow node restrictions\n";
|
|
#}
|
|
|
|
return $res;
|
|
}
|
|
|
|
return $value;
|
|
}
|
|
|
|
sub encode_value {
|
|
my ($class, $type, $key, $value) = @_;
|
|
|
|
if ($key eq 'nodes') {
|
|
return join(',', keys(%$value));
|
|
} elsif ($key eq 'content') {
|
|
my $res = content_hash_to_string($value) || 'none';
|
|
return $res;
|
|
}
|
|
|
|
return $value;
|
|
}
|
|
|
|
sub parse_config {
|
|
my ($class, $filename, $raw) = @_;
|
|
|
|
my $cfg = $class->SUPER::parse_config($filename, $raw);
|
|
my $ids = $cfg->{ids};
|
|
|
|
# make sure we have a reasonable 'local:' storage
|
|
# we want 'local' to be always the same 'type' (on all cluster nodes)
|
|
if (!$ids->{local} || $ids->{local}->{type} ne 'dir' ||
|
|
($ids->{local}->{path} && $ids->{local}->{path} ne '/var/lib/vz')) {
|
|
$ids->{local} = {
|
|
type => 'dir',
|
|
priority => 0, # force first entry
|
|
path => '/var/lib/vz',
|
|
'prune-backups' => 'keep-all=1',
|
|
content => {
|
|
backup => 1,
|
|
images => 1,
|
|
iso => 1,
|
|
rootdir => 1,
|
|
snippets => 1,
|
|
vztmpl => 1,
|
|
},
|
|
};
|
|
}
|
|
|
|
# make sure we have a path
|
|
$ids->{local}->{path} = '/var/lib/vz' if !$ids->{local}->{path};
|
|
|
|
# remove node restrictions for local storage
|
|
delete($ids->{local}->{nodes});
|
|
|
|
foreach my $storeid (keys %$ids) {
|
|
my $d = $ids->{$storeid};
|
|
my $type = $d->{type};
|
|
|
|
my $def = $defaultData->{plugindata}->{$type};
|
|
|
|
if ($def->{content}) {
|
|
$d->{content} = $def->{content}->[1] if !$d->{content};
|
|
}
|
|
if (grep { $_ eq $type } @SHARED_STORAGE) {
|
|
$d->{shared} = 1;
|
|
}
|
|
}
|
|
|
|
return $cfg;
|
|
}
|
|
|
|
sub preallocation_cmd_option {
|
|
my ($scfg, $fmt) = @_;
|
|
|
|
my $prealloc = $scfg->{preallocation};
|
|
|
|
if ($fmt eq 'qcow2') {
|
|
$prealloc = $prealloc // 'metadata';
|
|
|
|
die "preallocation mode '$prealloc' not supported by format '$fmt'\n"
|
|
if !$QCOW2_PREALLOCATION->{$prealloc};
|
|
|
|
return "preallocation=$prealloc";
|
|
} elsif ($fmt eq 'raw') {
|
|
$prealloc = $prealloc // 'off';
|
|
$prealloc = 'off' if $prealloc eq 'metadata';
|
|
|
|
die "preallocation mode '$prealloc' not supported by format '$fmt'\n"
|
|
if !$RAW_PREALLOCATION->{$prealloc};
|
|
|
|
return "preallocation=$prealloc";
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
# Storage implementation
|
|
|
|
# called during addition of storage (before the new storage config got written)
|
|
# die to abort addition if there are (grave) problems
|
|
# NOTE: runs in a storage config *locked* context
|
|
sub on_add_hook {
|
|
my ($class, $storeid, $scfg, %param) = @_;
|
|
|
|
# do nothing by default
|
|
return undef;
|
|
}
|
|
|
|
# called during storage configuration update (before the updated storage config got written)
|
|
# die to abort the update if there are (grave) problems
|
|
# NOTE: runs in a storage config *locked* context
|
|
sub on_update_hook {
|
|
my ($class, $storeid, $scfg, %param) = @_;
|
|
|
|
# do nothing by default
|
|
return undef;
|
|
}
|
|
|
|
# called during deletion of storage (before the new storage config got written)
|
|
# and if the activate check on addition fails, to cleanup all storage traces
|
|
# which on_add_hook may have created.
|
|
# die to abort deletion if there are (very grave) problems
|
|
# NOTE: runs in a storage config *locked* context
|
|
sub on_delete_hook {
|
|
my ($class, $storeid, $scfg) = @_;
|
|
|
|
# do nothing by default
|
|
return undef;
|
|
}
|
|
|
|
sub cluster_lock_storage {
|
|
my ($class, $storeid, $shared, $timeout, $func, @param) = @_;
|
|
|
|
my $res;
|
|
if (!$shared) {
|
|
my $lockid = "pve-storage-$storeid";
|
|
my $lockdir = "/var/lock/pve-manager";
|
|
mkdir $lockdir;
|
|
$res = PVE::Tools::lock_file("$lockdir/$lockid", $timeout, $func, @param);
|
|
die $@ if $@;
|
|
} else {
|
|
$res = PVE::Cluster::cfs_lock_storage($storeid, $timeout, $func, @param);
|
|
die $@ if $@;
|
|
}
|
|
return $res;
|
|
}
|
|
|
|
sub parse_name_dir {
|
|
my $name = shift;
|
|
|
|
if ($name =~ m!^((base-)?[^/\s]+\.(raw|qcow2|vmdk|subvol))$!) {
|
|
return ($1, $3, $2); # (name, format, isBase)
|
|
}
|
|
|
|
die "unable to parse volume filename '$name'\n";
|
|
}
|
|
|
|
sub parse_volname {
|
|
my ($class, $volname) = @_;
|
|
|
|
if ($volname =~ m!^(\d+)/(\S+)/(\d+)/(\S+)$!) {
|
|
my ($basedvmid, $basename) = ($1, $2);
|
|
parse_name_dir($basename);
|
|
my ($vmid, $name) = ($3, $4);
|
|
my (undef, $format, $isBase) = parse_name_dir($name);
|
|
return ('images', $name, $vmid, $basename, $basedvmid, $isBase, $format);
|
|
} elsif ($volname =~ m!^(\d+)/(\S+)$!) {
|
|
my ($vmid, $name) = ($1, $2);
|
|
my (undef, $format, $isBase) = parse_name_dir($name);
|
|
return ('images', $name, $vmid, undef, undef, $isBase, $format);
|
|
} elsif ($volname =~ m!^iso/([^/]+$PVE::Storage::ISO_EXT_RE_0)$!) {
|
|
return ('iso', $1);
|
|
} elsif ($volname =~ m!^vztmpl/([^/]+$PVE::Storage::VZTMPL_EXT_RE_1)$!) {
|
|
return ('vztmpl', $1);
|
|
} elsif ($volname =~ m!^rootdir/(\d+)$!) {
|
|
return ('rootdir', $1, $1);
|
|
} elsif ($volname =~ m!^backup/([^/]+$PVE::Storage::BACKUP_EXT_RE_2)$!) {
|
|
my $fn = $1;
|
|
if ($fn =~ m/^vzdump-(openvz|lxc|qemu)-(\d+)-.+/) {
|
|
return ('backup', $fn, $2);
|
|
}
|
|
return ('backup', $fn);
|
|
} elsif ($volname =~ m!^snippets/([^/]+)$!) {
|
|
return ('snippets', $1);
|
|
}
|
|
|
|
die "unable to parse directory volume name '$volname'\n";
|
|
}
|
|
|
|
my $vtype_subdirs = {
|
|
images => 'images',
|
|
rootdir => 'private',
|
|
iso => 'template/iso',
|
|
vztmpl => 'template/cache',
|
|
backup => 'dump',
|
|
snippets => 'snippets',
|
|
};
|
|
|
|
sub get_vtype_subdirs {
|
|
return $vtype_subdirs;
|
|
}
|
|
|
|
sub get_subdir {
|
|
my ($class, $scfg, $vtype) = @_;
|
|
|
|
my $path = $scfg->{path};
|
|
|
|
die "storage definition has no path\n" if !$path;
|
|
|
|
my $subdir = $vtype_subdirs->{$vtype};
|
|
|
|
die "unknown vtype '$vtype'\n" if !defined($subdir);
|
|
|
|
return "$path/$subdir";
|
|
}
|
|
|
|
sub filesystem_path {
|
|
my ($class, $scfg, $volname, $snapname) = @_;
|
|
|
|
my ($vtype, $name, $vmid, undef, undef, $isBase, $format) =
|
|
$class->parse_volname($volname);
|
|
|
|
# Note: qcow2/qed has internal snapshot, so path is always
|
|
# the same (with or without snapshot => same file).
|
|
die "can't snapshot this image format\n"
|
|
if defined($snapname) && $format !~ m/^(qcow2|qed)$/;
|
|
|
|
my $dir = $class->get_subdir($scfg, $vtype);
|
|
|
|
$dir .= "/$vmid" if $vtype eq 'images';
|
|
|
|
my $path = "$dir/$name";
|
|
|
|
return wantarray ? ($path, $vmid, $vtype) : $path;
|
|
}
|
|
|
|
sub path {
|
|
my ($class, $scfg, $volname, $storeid, $snapname) = @_;
|
|
|
|
return $class->filesystem_path($scfg, $volname, $snapname);
|
|
}
|
|
|
|
sub create_base {
|
|
my ($class, $storeid, $scfg, $volname) = @_;
|
|
|
|
# this only works for file based storage types
|
|
die "storage definition has no path\n" if !$scfg->{path};
|
|
|
|
my ($vtype, $name, $vmid, $basename, $basevmid, $isBase, $format) =
|
|
$class->parse_volname($volname);
|
|
|
|
die "create_base on wrong vtype '$vtype'\n" if $vtype ne 'images';
|
|
|
|
die "create_base not possible with base image\n" if $isBase;
|
|
|
|
my $path = $class->filesystem_path($scfg, $volname);
|
|
|
|
my ($size, undef, $used, $parent) = file_size_info($path);
|
|
die "file_size_info on '$volname' failed\n" if !($format && defined($size));
|
|
|
|
die "volname '$volname' contains wrong information about parent\n"
|
|
if $basename && (!$parent || $parent ne "../$basevmid/$basename");
|
|
|
|
my $newname = $name;
|
|
$newname =~ s/^vm-/base-/;
|
|
|
|
my $newvolname = $basename ? "$basevmid/$basename/$vmid/$newname" :
|
|
"$vmid/$newname";
|
|
|
|
my $newpath = $class->filesystem_path($scfg, $newvolname);
|
|
|
|
die "file '$newpath' already exists\n" if -f $newpath;
|
|
|
|
rename($path, $newpath) ||
|
|
die "rename '$path' to '$newpath' failed - $!\n";
|
|
|
|
# We try to protect base volume
|
|
|
|
chmod(0444, $newpath); # nobody should write anything
|
|
|
|
# also try to set immutable flag
|
|
eval { run_command(['/usr/bin/chattr', '+i', $newpath]); };
|
|
warn $@ if $@;
|
|
|
|
return $newvolname;
|
|
}
|
|
|
|
my $get_vm_disk_number = sub {
|
|
my ($disk_name, $scfg, $vmid, $suffix) = @_;
|
|
|
|
my $disk_regex = qr/(vm|base)-$vmid-disk-(\d+)$suffix/;
|
|
|
|
my $type = $scfg->{type};
|
|
my $def = { %{$defaultData->{plugindata}->{$type}} };
|
|
|
|
my $valid = $def->{format}[0];
|
|
if ($valid->{subvol}) {
|
|
$disk_regex = qr/(vm|base|subvol|basevol)-$vmid-disk-(\d+)/;
|
|
}
|
|
|
|
if ($disk_name =~ m/$disk_regex/) {
|
|
return $2;
|
|
}
|
|
|
|
return undef;
|
|
};
|
|
|
|
sub get_next_vm_diskname {
|
|
my ($disk_list, $storeid, $vmid, $fmt, $scfg, $add_fmt_suffix) = @_;
|
|
|
|
$fmt //= '';
|
|
my $prefix = ($fmt eq 'subvol') ? 'subvol' : 'vm';
|
|
my $suffix = $add_fmt_suffix ? ".$fmt" : '';
|
|
|
|
my $disk_ids = {};
|
|
foreach my $disk (@$disk_list) {
|
|
my $disknum = $get_vm_disk_number->($disk, $scfg, $vmid, $suffix);
|
|
$disk_ids->{$disknum} = 1 if defined($disknum);
|
|
}
|
|
|
|
for (my $i = 0; $i < $MAX_VOLUMES_PER_GUEST; $i++) {
|
|
if (!$disk_ids->{$i}) {
|
|
return "$prefix-$vmid-disk-$i$suffix";
|
|
}
|
|
}
|
|
|
|
die "unable to allocate an image name for VM $vmid in storage '$storeid'\n"
|
|
}
|
|
|
|
sub find_free_diskname {
|
|
my ($class, $storeid, $scfg, $vmid, $fmt, $add_fmt_suffix) = @_;
|
|
|
|
my $disks = $class->list_images($storeid, $scfg, $vmid);
|
|
|
|
my $disk_list = [ map { $_->{volid} } @$disks ];
|
|
|
|
return get_next_vm_diskname($disk_list, $storeid, $vmid, $fmt, $scfg, $add_fmt_suffix);
|
|
}
|
|
|
|
sub clone_image {
|
|
my ($class, $scfg, $storeid, $volname, $vmid, $snap) = @_;
|
|
|
|
# this only works for file based storage types
|
|
die "storage definition has no path\n" if !$scfg->{path};
|
|
|
|
my ($vtype, $basename, $basevmid, undef, undef, $isBase, $format) =
|
|
$class->parse_volname($volname);
|
|
|
|
die "clone_image on wrong vtype '$vtype'\n" if $vtype ne 'images';
|
|
|
|
die "this storage type does not support clone_image on snapshot\n" if $snap;
|
|
|
|
die "this storage type does not support clone_image on subvolumes\n" if $format eq 'subvol';
|
|
|
|
die "clone_image only works on base images\n" if !$isBase;
|
|
|
|
my $imagedir = $class->get_subdir($scfg, 'images');
|
|
$imagedir .= "/$vmid";
|
|
|
|
mkpath $imagedir;
|
|
|
|
my $name = $class->find_free_diskname($storeid, $scfg, $vmid, "qcow2", 1);
|
|
|
|
warn "clone $volname: $vtype, $name, $vmid to $name (base=../$basevmid/$basename)\n";
|
|
|
|
my $newvol = "$basevmid/$basename/$vmid/$name";
|
|
|
|
my $path = $class->filesystem_path($scfg, $newvol);
|
|
|
|
# Note: we use relative paths, so we need to call chdir before qemu-img
|
|
eval {
|
|
local $CWD = $imagedir;
|
|
|
|
my $cmd = ['/usr/bin/qemu-img', 'create', '-b', "../$basevmid/$basename",
|
|
'-F', $format, '-f', 'qcow2', $path];
|
|
|
|
run_command($cmd);
|
|
};
|
|
my $err = $@;
|
|
|
|
die $err if $err;
|
|
|
|
return $newvol;
|
|
}
|
|
|
|
sub alloc_image {
|
|
my ($class, $storeid, $scfg, $vmid, $fmt, $name, $size) = @_;
|
|
|
|
my $imagedir = $class->get_subdir($scfg, 'images');
|
|
$imagedir .= "/$vmid";
|
|
|
|
mkpath $imagedir;
|
|
|
|
$name = $class->find_free_diskname($storeid, $scfg, $vmid, $fmt, 1) if !$name;
|
|
|
|
my (undef, $tmpfmt) = parse_name_dir($name);
|
|
|
|
die "illegal name '$name' - wrong extension for format ('$tmpfmt != '$fmt')\n"
|
|
if $tmpfmt ne $fmt;
|
|
|
|
my $path = "$imagedir/$name";
|
|
|
|
die "disk image '$path' already exists\n" if -e $path;
|
|
|
|
if ($fmt eq 'subvol') {
|
|
# only allow this if size = 0, so that user knows what he is doing
|
|
die "storage does not support subvol quotas\n" if $size != 0;
|
|
|
|
my $old_umask = umask(0022);
|
|
my $err;
|
|
mkdir($path) or $err = "unable to create subvol '$path' - $!\n";
|
|
umask $old_umask;
|
|
die $err if $err;
|
|
} else {
|
|
my $cmd = ['/usr/bin/qemu-img', 'create'];
|
|
|
|
my $prealloc_opt = preallocation_cmd_option($scfg, $fmt);
|
|
push @$cmd, '-o', $prealloc_opt if defined($prealloc_opt);
|
|
|
|
push @$cmd, '-f', $fmt, $path, "${size}K";
|
|
|
|
eval { run_command($cmd, errmsg => "unable to create image"); };
|
|
if ($@) {
|
|
unlink $path;
|
|
rmdir $imagedir;
|
|
die "$@";
|
|
}
|
|
}
|
|
|
|
return "$vmid/$name";
|
|
}
|
|
|
|
sub free_image {
|
|
my ($class, $storeid, $scfg, $volname, $isBase, $format) = @_;
|
|
|
|
die "cannot remove protected volume '$volname' on '$storeid'\n"
|
|
if $class->get_volume_attribute($scfg, $storeid, $volname, 'protected');
|
|
|
|
my $path = $class->filesystem_path($scfg, $volname);
|
|
|
|
if ($isBase) {
|
|
# try to remove immutable flag
|
|
eval { run_command(['/usr/bin/chattr', '-i', $path]); };
|
|
warn $@ if $@;
|
|
}
|
|
|
|
if (defined($format) && ($format eq 'subvol')) {
|
|
File::Path::remove_tree($path);
|
|
} else {
|
|
if (!(-f $path || -l $path)) {
|
|
warn "disk image '$path' does not exist\n";
|
|
return undef;
|
|
}
|
|
|
|
unlink($path) || die "unlink '$path' failed - $!\n";
|
|
}
|
|
|
|
# try to cleanup directory to not clutter storage with empty $vmid dirs if
|
|
# all images from a guest got deleted
|
|
my $dir = dirname($path);
|
|
rmdir($dir);
|
|
|
|
return undef;
|
|
}
|
|
|
|
sub file_size_info {
|
|
my ($filename, $timeout) = @_;
|
|
|
|
my $st = File::stat::stat($filename);
|
|
|
|
if (!defined($st)) {
|
|
my $extramsg = -l $filename ? ' - dangling symlink?' : '';
|
|
warn "failed to stat '$filename'$extramsg\n";
|
|
return undef;
|
|
}
|
|
|
|
if (S_ISDIR($st->mode)) {
|
|
return wantarray ? (0, 'subvol', 0, undef, $st->ctime) : 1;
|
|
}
|
|
|
|
my $json = '';
|
|
eval {
|
|
run_command(['/usr/bin/qemu-img', 'info', '--output=json', $filename],
|
|
timeout => $timeout,
|
|
outfunc => sub { $json .= shift },
|
|
errfunc => sub { warn "$_[0]\n" }
|
|
);
|
|
};
|
|
warn $@ if $@;
|
|
|
|
my $info = eval { decode_json($json) };
|
|
if (my $err = $@) {
|
|
warn "could not parse qemu-img info command output for '$filename' - $err\n";
|
|
return wantarray ? (undef, undef, undef, undef, $st->ctime) : undef;
|
|
}
|
|
|
|
my ($size, $format, $used, $parent) = $info->@{qw(virtual-size format actual-size backing-filename)};
|
|
|
|
($size) = ($size =~ /^(\d+)$/) or die "size '$size' not an integer\n"; # untaint
|
|
# coerce back from string
|
|
$size = int($size);
|
|
($used) = ($used =~ /^(\d+)$/) or die "used '$used' not an integer\n"; # untaint
|
|
# coerce back from string
|
|
$used = int($used);
|
|
($format) = ($format =~ /^(\S+)$/) or die "format '$format' includes whitespace\n"; # untaint
|
|
if (defined($parent)) {
|
|
($parent) = ($parent =~ /^(\S+)$/) or die "parent '$parent' includes whitespace\n"; # untaint
|
|
}
|
|
return wantarray ? ($size, $format, $used, $parent, $st->ctime) : $size;
|
|
}
|
|
|
|
# FIXME remove on the next APIAGE reset.
|
|
# Deprecated, use get_volume_attribute instead.
|
|
sub get_volume_notes {
|
|
my ($class, $scfg, $storeid, $volname, $timeout) = @_;
|
|
|
|
die "volume notes are not supported for $class";
|
|
}
|
|
|
|
# FIXME remove on the next APIAGE reset.
|
|
# Deprecated, use update_volume_attribute instead.
|
|
sub update_volume_notes {
|
|
my ($class, $scfg, $storeid, $volname, $notes, $timeout) = @_;
|
|
|
|
die "volume notes are not supported for $class";
|
|
}
|
|
|
|
# Returns undef if the attribute is not supported for the volume.
|
|
# Should die if there is an error fetching the attribute.
|
|
# Possible attributes:
|
|
# notes - user-provided comments/notes.
|
|
# protected - not to be removed by free_image, and for backups, ignored when pruning.
|
|
sub get_volume_attribute {
|
|
my ($class, $scfg, $storeid, $volname, $attribute) = @_;
|
|
|
|
if ($attribute eq 'notes') {
|
|
my $notes = eval { $class->get_volume_notes($scfg, $storeid, $volname); };
|
|
if (my $err = $@) {
|
|
return if $err =~ m/^volume notes are not supported/;
|
|
die $err;
|
|
}
|
|
return $notes;
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
# Dies if the attribute is not supported for the volume.
|
|
sub update_volume_attribute {
|
|
my ($class, $scfg, $storeid, $volname, $attribute, $value) = @_;
|
|
|
|
if ($attribute eq 'notes') {
|
|
$class->update_volume_notes($scfg, $storeid, $volname, $value);
|
|
}
|
|
|
|
die "attribute '$attribute' is not supported for storage type '$scfg->{type}'\n";
|
|
}
|
|
|
|
sub volume_size_info {
|
|
my ($class, $scfg, $storeid, $volname, $timeout) = @_;
|
|
my $path = $class->filesystem_path($scfg, $volname);
|
|
return file_size_info($path, $timeout);
|
|
|
|
}
|
|
|
|
sub volume_resize {
|
|
my ($class, $scfg, $storeid, $volname, $size, $running) = @_;
|
|
|
|
die "can't resize this image format\n" if $volname !~ m/\.(raw|qcow2)$/;
|
|
|
|
return 1 if $running;
|
|
|
|
my $path = $class->filesystem_path($scfg, $volname);
|
|
|
|
my $format = ($class->parse_volname($volname))[6];
|
|
|
|
my $cmd = ['/usr/bin/qemu-img', 'resize', '-f', $format, $path , $size];
|
|
|
|
run_command($cmd, timeout => 10);
|
|
|
|
return undef;
|
|
}
|
|
|
|
sub volume_snapshot {
|
|
my ($class, $scfg, $storeid, $volname, $snap) = @_;
|
|
|
|
die "can't snapshot this image format\n" if $volname !~ m/\.(qcow2|qed)$/;
|
|
|
|
my $path = $class->filesystem_path($scfg, $volname);
|
|
|
|
my $cmd = ['/usr/bin/qemu-img', 'snapshot','-c', $snap, $path];
|
|
|
|
run_command($cmd);
|
|
|
|
return undef;
|
|
}
|
|
|
|
# Asserts that a rollback to $snap on $volname is possible.
|
|
# If certain snapshots are preventing the rollback and $blockers is an array
|
|
# reference, the snapshot names can be pushed onto $blockers prior to dying.
|
|
sub volume_rollback_is_possible {
|
|
my ($class, $scfg, $storeid, $volname, $snap, $blockers) = @_;
|
|
|
|
return 1;
|
|
}
|
|
|
|
sub volume_snapshot_rollback {
|
|
my ($class, $scfg, $storeid, $volname, $snap) = @_;
|
|
|
|
die "can't rollback snapshot this image format\n" if $volname !~ m/\.(qcow2|qed)$/;
|
|
|
|
my $path = $class->filesystem_path($scfg, $volname);
|
|
|
|
my $cmd = ['/usr/bin/qemu-img', 'snapshot','-a', $snap, $path];
|
|
|
|
run_command($cmd);
|
|
|
|
return undef;
|
|
}
|
|
|
|
sub volume_snapshot_delete {
|
|
my ($class, $scfg, $storeid, $volname, $snap, $running) = @_;
|
|
|
|
die "can't delete snapshot for this image format\n" if $volname !~ m/\.(qcow2|qed)$/;
|
|
|
|
return 1 if $running;
|
|
|
|
my $path = $class->filesystem_path($scfg, $volname);
|
|
|
|
$class->deactivate_volume($storeid, $scfg, $volname, $snap, {});
|
|
|
|
my $cmd = ['/usr/bin/qemu-img', 'snapshot','-d', $snap, $path];
|
|
|
|
run_command($cmd);
|
|
|
|
return undef;
|
|
}
|
|
|
|
sub volume_snapshot_needs_fsfreeze {
|
|
|
|
return 0;
|
|
}
|
|
sub storage_can_replicate {
|
|
my ($class, $scfg, $storeid, $format) = @_;
|
|
|
|
return 0;
|
|
}
|
|
|
|
sub volume_has_feature {
|
|
my ($class, $scfg, $feature, $storeid, $volname, $snapname, $running, $opts) = @_;
|
|
|
|
my $features = {
|
|
snapshot => {
|
|
current => { qcow2 => 1 },
|
|
snap => { qcow2 => 1 },
|
|
},
|
|
clone => {
|
|
base => { qcow2 => 1, raw => 1, vmdk => 1 },
|
|
},
|
|
template => {
|
|
current => { qcow2 => 1, raw => 1, vmdk => 1, subvol => 1 },
|
|
},
|
|
copy => {
|
|
base => { qcow2 => 1, raw => 1, vmdk => 1 },
|
|
current => { qcow2 => 1, raw => 1, vmdk => 1 },
|
|
snap => { qcow2 => 1 },
|
|
},
|
|
sparseinit => {
|
|
base => { qcow2 => 1, raw => 1, vmdk => 1 },
|
|
current => { qcow2 => 1, raw => 1, vmdk => 1 },
|
|
},
|
|
rename => {
|
|
current => {qcow2 => 1, raw => 1, vmdk => 1},
|
|
},
|
|
};
|
|
|
|
if ($feature eq 'clone') {
|
|
if (
|
|
defined($opts->{valid_target_formats})
|
|
&& !(grep { $_ eq 'qcow2' } @{$opts->{valid_target_formats}})
|
|
) {
|
|
return 0; # clone_image creates a qcow2 volume
|
|
}
|
|
} elsif ($feature eq 'rename') {
|
|
return 0 if $class->can('api') && $class->api() < 10;
|
|
}
|
|
|
|
|
|
my ($vtype, $name, $vmid, $basename, $basevmid, $isBase, $format) = $class->parse_volname($volname);
|
|
|
|
my $key = undef;
|
|
if($snapname){
|
|
$key = 'snap';
|
|
}else{
|
|
$key = $isBase ? 'base' : 'current';
|
|
}
|
|
|
|
return 1 if defined($features->{$feature}->{$key}->{$format});
|
|
|
|
return undef;
|
|
}
|
|
|
|
sub list_images {
|
|
my ($class, $storeid, $scfg, $vmid, $vollist, $cache) = @_;
|
|
|
|
my $imagedir = $class->get_subdir($scfg, 'images');
|
|
|
|
my ($defFmt, $vaidFmts) = default_format($scfg);
|
|
my $fmts = join ('|', @$vaidFmts);
|
|
|
|
my $res = [];
|
|
|
|
foreach my $fn (<$imagedir/[0-9][0-9]*/*>) {
|
|
|
|
next if $fn !~ m!^(/.+/(\d+)/([^/]+\.($fmts)))$!;
|
|
$fn = $1; # untaint
|
|
|
|
my $owner = $2;
|
|
my $name = $3;
|
|
|
|
next if !$vollist && defined($vmid) && ($owner ne $vmid);
|
|
|
|
my ($size, $format, $used, $parent, $ctime) = file_size_info($fn);
|
|
next if !($format && defined($size));
|
|
|
|
my $volid;
|
|
if ($parent && $parent =~ m!^../(\d+)/([^/]+\.($fmts))$!) {
|
|
my ($basevmid, $basename) = ($1, $2);
|
|
$volid = "$storeid:$basevmid/$basename/$owner/$name";
|
|
} else {
|
|
$volid = "$storeid:$owner/$name";
|
|
}
|
|
|
|
if ($vollist) {
|
|
my $found = grep { $_ eq $volid } @$vollist;
|
|
next if !$found;
|
|
}
|
|
|
|
my $info = {
|
|
volid => $volid, format => $format,
|
|
size => $size, vmid => $owner, used => $used, parent => $parent
|
|
};
|
|
|
|
$info->{ctime} = $ctime if $ctime;
|
|
|
|
push @$res, $info;
|
|
}
|
|
|
|
return $res;
|
|
}
|
|
|
|
# list templates ($tt = <iso|vztmpl|backup|snippets>)
|
|
my $get_subdir_files = sub {
|
|
my ($sid, $path, $tt, $vmid) = @_;
|
|
|
|
my $res = [];
|
|
|
|
foreach my $fn (<$path/*>) {
|
|
my $st = File::stat::stat($fn);
|
|
|
|
next if (!$st || S_ISDIR($st->mode));
|
|
|
|
my $info;
|
|
|
|
if ($tt eq 'iso') {
|
|
next if $fn !~ m!/([^/]+$PVE::Storage::ISO_EXT_RE_0)$!i;
|
|
|
|
$info = { volid => "$sid:iso/$1", format => 'iso' };
|
|
|
|
} elsif ($tt eq 'vztmpl') {
|
|
next if $fn !~ m!/([^/]+$PVE::Storage::VZTMPL_EXT_RE_1)$!;
|
|
|
|
$info = { volid => "$sid:vztmpl/$1", format => "t$2" };
|
|
|
|
} elsif ($tt eq 'backup') {
|
|
next if $fn !~ m!/([^/]+$PVE::Storage::BACKUP_EXT_RE_2)$!;
|
|
my $original = $fn;
|
|
my $format = $2;
|
|
$fn = $1;
|
|
|
|
# only match for VMID now, to avoid false positives (VMID in parent directory name)
|
|
next if defined($vmid) && $fn !~ m/\S+-$vmid-\S+/;
|
|
|
|
$info = { volid => "$sid:backup/$fn", format => $format };
|
|
|
|
my $archive_info = eval { PVE::Storage::archive_info($fn) } // {};
|
|
|
|
$info->{ctime} = $archive_info->{ctime} if defined($archive_info->{ctime});
|
|
$info->{subtype} = $archive_info->{type} // 'unknown';
|
|
|
|
if (defined($vmid) || $fn =~ m!\-([1-9][0-9]{2,8})\-[^/]+\.${format}$!) {
|
|
$info->{vmid} = $vmid // $1;
|
|
}
|
|
|
|
my $notes_fn = $original.NOTES_EXT;
|
|
if (-f $notes_fn) {
|
|
my $notes = PVE::Tools::file_read_firstline($notes_fn);
|
|
$info->{notes} = eval { decode('UTF-8', $notes, 1) } // $notes if defined($notes);
|
|
}
|
|
|
|
$info->{protected} = 1 if -e PVE::Storage::protection_file_path($original);
|
|
} elsif ($tt eq 'snippets') {
|
|
|
|
$info = {
|
|
volid => "$sid:snippets/". basename($fn),
|
|
format => 'snippet',
|
|
};
|
|
}
|
|
|
|
$info->{size} = $st->size;
|
|
$info->{ctime} //= $st->ctime;
|
|
|
|
push @$res, $info;
|
|
}
|
|
|
|
return $res;
|
|
};
|
|
|
|
# If attributes are set on a volume, they should be included in the result.
|
|
# See get_volume_attribute for a list of possible attributes.
|
|
sub list_volumes {
|
|
my ($class, $storeid, $scfg, $vmid, $content_types) = @_;
|
|
|
|
my $res = [];
|
|
my $vmlist = PVE::Cluster::get_vmlist();
|
|
foreach my $type (@$content_types) {
|
|
my $data;
|
|
|
|
if ($type eq 'images' || $type eq 'rootdir') {
|
|
$data = $class->list_images($storeid, $scfg, $vmid);
|
|
} elsif ($scfg->{path}) {
|
|
my $path = $class->get_subdir($scfg, $type);
|
|
|
|
if ($type eq 'iso' && !defined($vmid)) {
|
|
$data = $get_subdir_files->($storeid, $path, 'iso');
|
|
} elsif ($type eq 'vztmpl'&& !defined($vmid)) {
|
|
$data = $get_subdir_files->($storeid, $path, 'vztmpl');
|
|
} elsif ($type eq 'backup') {
|
|
$data = $get_subdir_files->($storeid, $path, 'backup', $vmid);
|
|
} elsif ($type eq 'snippets') {
|
|
$data = $get_subdir_files->($storeid, $path, 'snippets');
|
|
}
|
|
}
|
|
|
|
next if !$data;
|
|
|
|
foreach my $item (@$data) {
|
|
if ($type eq 'images' || $type eq 'rootdir') {
|
|
my $vminfo = $vmlist->{ids}->{$item->{vmid}};
|
|
my $vmtype;
|
|
if (defined($vminfo)) {
|
|
$vmtype = $vminfo->{type};
|
|
}
|
|
if (defined($vmtype) && $vmtype eq 'lxc') {
|
|
$item->{content} = 'rootdir';
|
|
} else {
|
|
$item->{content} = 'images';
|
|
}
|
|
next if $type ne $item->{content};
|
|
} else {
|
|
$item->{content} = $type;
|
|
}
|
|
|
|
push @$res, $item;
|
|
}
|
|
}
|
|
|
|
return $res;
|
|
}
|
|
|
|
sub status {
|
|
my ($class, $storeid, $scfg, $cache) = @_;
|
|
|
|
my $path = $scfg->{path};
|
|
|
|
die "storage definition has no path\n" if !$path;
|
|
|
|
my $timeout = 2;
|
|
my $res = PVE::Tools::df($path, $timeout);
|
|
|
|
return undef if !$res || !$res->{total};
|
|
|
|
return ($res->{total}, $res->{avail}, $res->{used}, 1);
|
|
}
|
|
|
|
# Returns a hash with the snapshot names as keys and the following data:
|
|
# id - Unique id to distinguish different snapshots even if the have the same name.
|
|
# timestamp - Creation time of the snapshot (seconds since epoch).
|
|
# Returns an empty hash if the volume does not exist.
|
|
sub volume_snapshot_info {
|
|
my ($class, $scfg, $storeid, $volname) = @_;
|
|
|
|
die "volume_snapshot_info is not implemented for $class";
|
|
}
|
|
|
|
sub activate_storage {
|
|
my ($class, $storeid, $scfg, $cache) = @_;
|
|
|
|
my $path = $scfg->{path};
|
|
|
|
die "storage definition has no path\n" if !$path;
|
|
|
|
# this path test may hang indefinitely on unresponsive mounts
|
|
my $timeout = 2;
|
|
if (! PVE::Tools::run_fork_with_timeout($timeout, sub {-d $path})) {
|
|
die "unable to activate storage '$storeid' - " .
|
|
"directory '$path' does not exist or is unreachable\n";
|
|
}
|
|
|
|
|
|
return if defined($scfg->{mkdir}) && !$scfg->{mkdir};
|
|
|
|
if (defined($scfg->{content})) {
|
|
foreach my $vtype (keys %$vtype_subdirs) {
|
|
# OpenVZMigrate uses backup (dump) dir
|
|
if (defined($scfg->{content}->{$vtype}) ||
|
|
($vtype eq 'backup' && defined($scfg->{content}->{'rootdir'}))) {
|
|
my $subdir = $class->get_subdir($scfg, $vtype);
|
|
mkpath $subdir if $subdir ne $path;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
sub deactivate_storage {
|
|
my ($class, $storeid, $scfg, $cache) = @_;
|
|
|
|
# do nothing by default
|
|
}
|
|
|
|
sub map_volume {
|
|
my ($class, $storeid, $scfg, $volname, $snapname) = @_;
|
|
|
|
my ($path) = $class->path($scfg, $volname, $storeid, $snapname);
|
|
return $path;
|
|
}
|
|
|
|
sub unmap_volume {
|
|
my ($class, $storeid, $scfg, $volname, $snapname) = @_;
|
|
|
|
return 1;
|
|
}
|
|
|
|
sub activate_volume {
|
|
my ($class, $storeid, $scfg, $volname, $snapname, $cache) = @_;
|
|
|
|
my $path = $class->filesystem_path($scfg, $volname, $snapname);
|
|
|
|
# check is volume exists
|
|
if ($scfg->{path}) {
|
|
die "volume '$storeid:$volname' does not exist\n" if ! -e $path;
|
|
} else {
|
|
die "volume '$storeid:$volname' does not exist\n" if ! -b $path;
|
|
}
|
|
}
|
|
|
|
sub deactivate_volume {
|
|
my ($class, $storeid, $scfg, $volname, $snapname, $cache) = @_;
|
|
|
|
# do nothing by default
|
|
}
|
|
|
|
sub check_connection {
|
|
my ($class, $storeid, $scfg) = @_;
|
|
# do nothing by default
|
|
return 1;
|
|
}
|
|
|
|
sub prune_backups {
|
|
my ($class, $scfg, $storeid, $keep, $vmid, $type, $dryrun, $logfunc) = @_;
|
|
|
|
$logfunc //= sub { print "$_[1]\n" };
|
|
|
|
my $backups = $class->list_volumes($storeid, $scfg, $vmid, ['backup']);
|
|
|
|
my $backup_groups = {};
|
|
my $prune_list = [];
|
|
|
|
foreach my $backup (@{$backups}) {
|
|
my $volid = $backup->{volid};
|
|
my $archive_info = eval { PVE::Storage::archive_info($volid) } // {};
|
|
my $backup_type = $archive_info->{type} // 'unknown';
|
|
my $backup_vmid = $archive_info->{vmid} // $backup->{vmid};
|
|
|
|
next if defined($type) && $type ne $backup_type;
|
|
|
|
my $prune_entry = {
|
|
ctime => $backup->{ctime},
|
|
type => $backup_type,
|
|
volid => $volid,
|
|
};
|
|
|
|
$prune_entry->{vmid} = $backup_vmid if defined($backup_vmid);
|
|
|
|
if ($archive_info->{is_std_name}) {
|
|
die "internal error - got no VMID\n" if !defined($backup_vmid);
|
|
die "internal error - got wrong VMID '$backup_vmid' != '$vmid'\n"
|
|
if defined($vmid) && $backup_vmid ne $vmid;
|
|
|
|
$prune_entry->{ctime} = $archive_info->{ctime};
|
|
my $group = "$backup_type/$backup_vmid";
|
|
push @{$backup_groups->{$group}}, $prune_entry;
|
|
} else {
|
|
# ignore backups that don't use the standard naming scheme
|
|
$prune_entry->{mark} = 'renamed';
|
|
}
|
|
|
|
$prune_entry->{mark} = 'protected' if $backup->{protected};
|
|
|
|
push @{$prune_list}, $prune_entry;
|
|
}
|
|
|
|
foreach my $backup_group (values %{$backup_groups}) {
|
|
PVE::Storage::prune_mark_backup_group($backup_group, $keep);
|
|
}
|
|
|
|
my $failed;
|
|
if (!$dryrun) {
|
|
foreach my $prune_entry (@{$prune_list}) {
|
|
next if $prune_entry->{mark} ne 'remove';
|
|
|
|
my $volid = $prune_entry->{volid};
|
|
$logfunc->('info', "removing backup '$volid'");
|
|
eval {
|
|
my (undef, $volname) = parse_volume_id($volid);
|
|
my $archive_path = $class->filesystem_path($scfg, $volname);
|
|
PVE::Storage::archive_remove($archive_path);
|
|
};
|
|
if (my $err = $@) {
|
|
$logfunc->('err', "error when removing backup '$volid' - $err\n");
|
|
$failed = 1;
|
|
}
|
|
}
|
|
}
|
|
die "error pruning backups - check log\n" if $failed;
|
|
|
|
return $prune_list;
|
|
}
|
|
|
|
# Import/Export interface:
|
|
# Any path based storage is assumed to support 'raw' and 'tar' streams, so
|
|
# the default implementations will return this if $scfg->{path} is set,
|
|
# mimicking the old PVE::Storage::storage_migrate() function.
|
|
#
|
|
# Plugins may fall back to PVE::Storage::Plugin::volume_{export,import}...
|
|
# functions in case the format doesn't match their specialized
|
|
# implementations to reuse the raw/tar code.
|
|
#
|
|
# Format specification:
|
|
# The following formats are all prefixed with image information in the form
|
|
# of a 64 bit little endian unsigned integer (pack('Q<')) in order to be able
|
|
# to preallocate the image on storages which require it.
|
|
#
|
|
# raw+size: (image files only)
|
|
# A raw binary data stream such as produced via `dd if=TheImageFile`.
|
|
# qcow2+size, vmdk: (image files only)
|
|
# A raw qcow2/vmdk/... file such as produced via `dd if=some.qcow2` for
|
|
# files which are already in qcow2 format, or via `qemu-img convert`.
|
|
# Note that these formats are only valid with $with_snapshots being true.
|
|
# tar+size: (subvolumes only)
|
|
# A GNU tar stream containing just the inner contents of the subvolume.
|
|
# This does not distinguish between the contents of a privileged or
|
|
# unprivileged container. In other words, this is from the root user
|
|
# namespace's point of view with no uid-mapping in effect.
|
|
# As produced via `tar -C vm-100-disk-1.subvol -cpf TheOutputFile.dat .`
|
|
|
|
# Plugins may reuse these helpers. Changes to the header format should be
|
|
# reflected by changes to the function prototypes.
|
|
sub write_common_header($$) {
|
|
my ($fh, $image_size_in_bytes) = @_;
|
|
syswrite($fh, pack("Q<", $image_size_in_bytes), 8);
|
|
}
|
|
|
|
sub read_common_header($) {
|
|
my ($fh) = @_;
|
|
sysread($fh, my $size, 8);
|
|
$size = unpack('Q<', $size);
|
|
die "import: no size found in export header, aborting.\n" if !defined($size);
|
|
# Size is in bytes!
|
|
return $size;
|
|
}
|
|
|
|
# Export a volume into a file handle as a stream of desired format.
|
|
sub volume_export {
|
|
my ($class, $scfg, $storeid, $fh, $volname, $format, $snapshot, $base_snapshot, $with_snapshots) = @_;
|
|
if ($scfg->{path} && !defined($snapshot) && !defined($base_snapshot)) {
|
|
my $file = $class->path($scfg, $volname, $storeid)
|
|
or goto unsupported;
|
|
my ($size, $file_format) = file_size_info($file);
|
|
|
|
if ($format eq 'raw+size') {
|
|
goto unsupported if $with_snapshots || $file_format eq 'subvol';
|
|
write_common_header($fh, $size);
|
|
if ($file_format eq 'raw') {
|
|
run_command(['dd', "if=$file", "bs=4k"], output => '>&'.fileno($fh));
|
|
} else {
|
|
run_command(['qemu-img', 'convert', '-f', $file_format, '-O', 'raw', $file, '/dev/stdout'],
|
|
output => '>&'.fileno($fh));
|
|
}
|
|
return;
|
|
} elsif ($format =~ /^(qcow2|vmdk)\+size$/) {
|
|
my $data_format = $1;
|
|
goto unsupported if !$with_snapshots || $file_format ne $data_format;
|
|
write_common_header($fh, $size);
|
|
run_command(['dd', "if=$file", "bs=4k"], output => '>&'.fileno($fh));
|
|
return;
|
|
} elsif ($format eq 'tar+size') {
|
|
goto unsupported if $file_format ne 'subvol';
|
|
write_common_header($fh, $size);
|
|
run_command(['tar', @COMMON_TAR_FLAGS, '-cf', '-', '-C', $file, '.'],
|
|
output => '>&'.fileno($fh));
|
|
return;
|
|
}
|
|
}
|
|
unsupported:
|
|
die "volume export format $format not available for $class";
|
|
}
|
|
|
|
sub volume_export_formats {
|
|
my ($class, $scfg, $storeid, $volname, $snapshot, $base_snapshot, $with_snapshots) = @_;
|
|
if ($scfg->{path} && !defined($snapshot) && !defined($base_snapshot)) {
|
|
my $file = $class->path($scfg, $volname, $storeid)
|
|
or return;
|
|
my ($size, $format) = file_size_info($file);
|
|
|
|
if ($with_snapshots) {
|
|
return ($format.'+size') if ($format eq 'qcow2' || $format eq 'vmdk');
|
|
return ();
|
|
}
|
|
return ('tar+size') if $format eq 'subvol';
|
|
return ('raw+size');
|
|
}
|
|
return ();
|
|
}
|
|
|
|
# Import data from a stream, creating a new or replacing or adding to an existing volume.
|
|
sub volume_import {
|
|
my ($class, $scfg, $storeid, $fh, $volname, $format, $snapshot, $base_snapshot, $with_snapshots, $allow_rename) = @_;
|
|
|
|
die "volume import format '$format' not available for $class\n"
|
|
if $format !~ /^(raw|tar|qcow2|vmdk)\+size$/;
|
|
my $data_format = $1;
|
|
|
|
die "format $format cannot be imported without snapshots\n"
|
|
if !$with_snapshots && ($data_format eq 'qcow2' || $data_format eq 'vmdk');
|
|
die "format $format cannot be imported with snapshots\n"
|
|
if $with_snapshots && ($data_format eq 'raw' || $data_format eq 'tar');
|
|
|
|
my ($vtype, $name, $vmid, $basename, $basevmid, $isBase, $file_format) =
|
|
$class->parse_volname($volname);
|
|
|
|
# XXX: Should we bother with conversion routines at this level? This won't
|
|
# happen without manual CLI usage, so for now we just error out...
|
|
die "cannot import format $format into a file of format $file_format\n"
|
|
if $data_format ne $file_format && !($data_format eq 'tar' && $file_format eq 'subvol');
|
|
|
|
# Check for an existing file first since interrupting alloc_image doesn't
|
|
# free it.
|
|
my $file = $class->path($scfg, $volname, $storeid);
|
|
if (-e $file) {
|
|
die "file '$file' already exists\n" if !$allow_rename;
|
|
warn "file '$file' already exists - importing with a different name\n";
|
|
$name = undef;
|
|
}
|
|
|
|
my ($size) = read_common_header($fh);
|
|
$size = int($size/1024);
|
|
|
|
eval {
|
|
my $allocname = $class->alloc_image($storeid, $scfg, $vmid, $file_format, $name, $size);
|
|
my $oldname = $volname;
|
|
$volname = $allocname;
|
|
if (defined($name) && $allocname ne $oldname) {
|
|
die "internal error: unexpected allocated name: '$allocname' != '$oldname'\n";
|
|
}
|
|
my $file = $class->path($scfg, $volname, $storeid)
|
|
or die "internal error: failed to get path to newly allocated volume $volname\n";
|
|
if ($data_format eq 'raw' || $data_format eq 'qcow2' || $data_format eq 'vmdk') {
|
|
run_command(['dd', "of=$file", 'conv=sparse', 'bs=64k'],
|
|
input => '<&'.fileno($fh));
|
|
} elsif ($data_format eq 'tar') {
|
|
run_command(['tar', @COMMON_TAR_FLAGS, '-C', $file, '-xf', '-'],
|
|
input => '<&'.fileno($fh));
|
|
} else {
|
|
die "volume import format '$format' not available for $class";
|
|
}
|
|
};
|
|
if (my $err = $@) {
|
|
eval { $class->free_image($storeid, $scfg, $volname, 0, $file_format) };
|
|
warn $@ if $@;
|
|
die $err;
|
|
}
|
|
|
|
return "$storeid:$volname";
|
|
}
|
|
|
|
sub volume_import_formats {
|
|
my ($class, $scfg, $storeid, $volname, $snapshot, $base_snapshot, $with_snapshots) = @_;
|
|
if ($scfg->{path} && !defined($base_snapshot)) {
|
|
my $format = ($class->parse_volname($volname))[6];
|
|
if ($with_snapshots) {
|
|
return ($format.'+size') if ($format eq 'qcow2' || $format eq 'vmdk');
|
|
return ();
|
|
}
|
|
return ('tar+size') if $format eq 'subvol';
|
|
return ('raw+size');
|
|
}
|
|
return ();
|
|
}
|
|
|
|
sub rename_volume {
|
|
my ($class, $scfg, $storeid, $source_volname, $target_vmid, $target_volname) = @_;
|
|
die "not implemented in storage plugin '$class'\n" if $class->can('api') && $class->api() < 10;
|
|
die "no path found\n" if !$scfg->{path};
|
|
|
|
my (
|
|
undef,
|
|
$source_image,
|
|
$source_vmid,
|
|
$base_name,
|
|
$base_vmid,
|
|
undef,
|
|
$format
|
|
) = $class->parse_volname($source_volname);
|
|
|
|
$target_volname = $class->find_free_diskname($storeid, $scfg, $target_vmid, $format, 1)
|
|
if !$target_volname;
|
|
|
|
my $basedir = $class->get_subdir($scfg, 'images');
|
|
|
|
mkpath "${basedir}/${target_vmid}";
|
|
|
|
my $old_path = "${basedir}/${source_vmid}/${source_image}";
|
|
my $new_path = "${basedir}/${target_vmid}/${target_volname}";
|
|
|
|
die "target volume '${target_volname}' already exists\n" if -e $new_path;
|
|
|
|
my $base = $base_name ? "${base_vmid}/${base_name}/" : '';
|
|
|
|
rename($old_path, $new_path) ||
|
|
die "rename '$old_path' to '$new_path' failed - $!\n";
|
|
|
|
return "${storeid}:${base}${target_vmid}/${target_volname}";
|
|
}
|
|
|
|
1;
|