400 lines
8.9 KiB
Perl
400 lines
8.9 KiB
Perl
package PVE::Storage::PBSPlugin;
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# Plugin to access Proxmox Backup Server
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use strict;
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use warnings;
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use POSIX qw(strftime);
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use IO::File;
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use HTTP::Request;
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use LWP::UserAgent;
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use JSON;
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use Data::Dumper; # fixme: remove
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use PVE::Tools qw(run_command file_read_firstline trim dir_glob_regex dir_glob_foreach);
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use PVE::Storage::Plugin;
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use PVE::JSONSchema qw(get_standard_option);
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use base qw(PVE::Storage::Plugin);
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# Configuration
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sub type {
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return 'pbs';
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}
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sub plugindata {
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return {
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content => [ {backup => 1, none => 1}, { backup => 1 }],
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};
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}
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sub properties {
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return {
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datastore => {
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description => "Proxmox backup server datastore name.",
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type => 'string',
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},
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# openssl s_client -connect <host>:8007 2>&1 |openssl x509 -fingerprint -sha256
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fingerprint => get_standard_option('fingerprint-sha256'),
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};
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}
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sub options {
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return {
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server => { fixed => 1 },
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datastore => { fixed => 1 },
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nodes => { optional => 1},
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disable => { optional => 1},
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content => { optional => 1},
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username => { optional => 1 },
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password => { optional => 1},
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maxfiles => { optional => 1 },
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fingerprint => { optional => 1 },
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};
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}
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# Helpers
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sub pbs_password_file_name {
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my ($scfg, $storeid) = @_;
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return "/etc/pve/priv/storage/${storeid}.pw";
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}
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sub pbs_set_password {
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my ($scfg, $storeid, $password) = @_;
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my $pwfile = pbs_password_file_name($scfg, $storeid);
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mkdir "/etc/pve/priv/storage";
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PVE::Tools::file_set_contents($pwfile, "$password\n");
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}
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sub pbs_delete_password {
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my ($scfg, $storeid) = @_;
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my $pwfile = pbs_password_file_name($scfg, $storeid);
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unlink $pwfile;
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}
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sub pbs_get_password {
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my ($scfg, $storeid) = @_;
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my $pwfile = pbs_password_file_name($scfg, $storeid);
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return PVE::Tools::file_read_firstline($pwfile);
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}
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sub run_raw_client_cmd {
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my ($scfg, $storeid, $client_cmd, $param, %opts) = @_;
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my $client_exe = '/usr/bin/proxmox-backup-client';
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die "executable not found '$client_exe'! Proxmox backup client not installed?\n"
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if ! -x $client_exe;
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my $server = $scfg->{server};
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my $datastore = $scfg->{datastore};
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my $username = $scfg->{username} // 'root@pam';
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my $userns_cmd = delete $opts{userns_cmd};
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my $cmd = [];
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push @$cmd, @$userns_cmd if defined($userns_cmd);
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push @$cmd, $client_exe, $client_cmd;
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push @$cmd, @$param if defined($param);
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push @$cmd, "--repository", "$username\@$server:$datastore";
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local $ENV{PBS_PASSWORD} = pbs_get_password($scfg, $storeid);
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local $ENV{PBS_FINGERPRINT} = $scfg->{fingerprint};
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if (my $logfunc = $opts{logfunc}) {
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$logfunc->("run bps command: " . join(' ', @$cmd));
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}
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run_command($cmd, %opts);
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}
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sub run_client_cmd {
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my ($scfg, $storeid, $client_cmd, $param, $no_output) = @_;
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my $json_str = '';
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my $outfunc = sub { $json_str .= "$_[0]\n" };
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$param = [] if !defined($param);
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$param = [ $param ] if !ref($param);
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$param = [@$param, '--output-format=json'] if !$no_output;
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run_raw_client_cmd($scfg, $storeid, $client_cmd, $param,
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outfunc => $outfunc, errmsg => 'proxmox-backup-client failed');
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return undef if $no_output;
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my $res = decode_json($json_str);
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return $res;
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}
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# Storage implementation
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sub extract_vzdump_config {
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my ($class, $scfg, $volname, $storeid) = @_;
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my ($vtype, $name, $vmid, undef, undef, undef, $format) = $class->parse_volname($volname);
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my $config = '';
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my $outfunc = sub { $config .= "$_[0]\n" };
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my $config_name;
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if ($format eq 'pbs-vm') {
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$config_name = 'qemu-server.conf';
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} elsif ($format eq 'pbs-ct') {
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$config_name = 'pct.conf';
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} else {
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die "unable to extract configuration for backup format '$format'\n";
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}
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run_raw_client_cmd($scfg, $storeid, 'restore', [ $name, $config_name, '-' ],
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outfunc => $outfunc, errmsg => 'proxmox-backup-client failed');
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return $config;
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}
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sub on_add_hook {
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my ($class, $storeid, $scfg, %param) = @_;
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if (defined($param{password})) {
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pbs_set_password($scfg, $storeid, $param{password});
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} else {
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pbs_delete_password($scfg, $storeid);
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}
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}
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sub on_update_hook {
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my ($class, $storeid, $scfg, %param) = @_;
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return if !exists($param{password});
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if (defined($param{password})) {
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pbs_set_password($scfg, $storeid, $param{password});
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} else {
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pbs_delete_password($scfg, $storeid);
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}
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}
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sub on_delete_hook {
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my ($class, $storeid, $scfg) = @_;
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pbs_delete_password($scfg, $storeid);
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}
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sub parse_volname {
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my ($class, $volname) = @_;
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if ($volname =~ m!^backup/([^\s_]+)/([^\s_]+)/([0-9]{4}-[0-9]{2}-[0-9]{2}T[0-9]{2}:[0-9]{2}:[0-9]{2}Z)$!) {
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my $btype = $1;
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my $bid = $2;
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my $btime = $3;
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my $format = "pbs-$btype";
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my $name = "$btype/$bid/$btime";
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if ($bid =~ m/^\d+$/) {
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return ('backup', $name, $bid, undef, undef, undef, $format);
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} else {
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return ('backup', $name, undef, undef, undef, undef, $format);
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}
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}
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die "unable to parse PBS volume name '$volname'\n";
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}
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sub path {
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my ($class, $scfg, $volname, $storeid, $snapname) = @_;
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die "volume snapshot is not possible on pbs storage"
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if defined($snapname);
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my ($vtype, $name, $vmid) = $class->parse_volname($volname);
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my $server = $scfg->{server};
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my $datastore = $scfg->{datastore};
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my $username = $scfg->{username} // 'root@pam';
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# artifical url - we currently do not use that anywhere
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my $path = "pbs://$username\@$server:$datastore/$name";
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return ($path, $vmid, $vtype);
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}
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sub create_base {
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my ($class, $storeid, $scfg, $volname) = @_;
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die "can't create base images in pbs storage\n";
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}
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sub clone_image {
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my ($class, $scfg, $storeid, $volname, $vmid, $snap) = @_;
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die "can't clone images in pbs storage\n";
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}
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sub alloc_image {
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my ($class, $storeid, $scfg, $vmid, $fmt, $name, $size) = @_;
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die "can't allocate space in pbs storage\n";
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}
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sub free_image {
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my ($class, $storeid, $scfg, $volname, $isBase) = @_;
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my ($vtype, $name, $vmid) = $class->parse_volname($volname);
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run_client_cmd($scfg, $storeid, "forget", [ $name ], 1);
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}
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sub list_images {
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my ($class, $storeid, $scfg, $vmid, $vollist, $cache) = @_;
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my $res = [];
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return $res;
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}
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sub list_volumes {
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my ($class, $storeid, $scfg, $vmid, $content_types) = @_;
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my $res = [];
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return $res if !grep { $_ eq 'backup' } @$content_types;
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my $data = run_client_cmd($scfg, $storeid, "snapshots");
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foreach my $item (@$data) {
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my $btype = $item->{"backup-type"};
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my $bid = $item->{"backup-id"};
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my $epoch = $item->{"backup-time"};
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my $size = $item->{size} // 1;
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next if !($btype eq 'vm' || $btype eq 'ct');
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next if $bid !~ m/^\d+$/;
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my $btime = strftime("%FT%TZ", gmtime($epoch));
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my $volname = "backup/${btype}/${bid}/${btime}";
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my $volid = "$storeid:$volname";
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my $info = {
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volid => $volid , format => "pbs-$btype", size => $size,
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content => 'backup', vmid => int($bid), ctime => $epoch
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};
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push @$res, $info;
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}
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return $res;
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}
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sub status {
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my ($class, $storeid, $scfg, $cache) = @_;
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my $total = 0;
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my $free = 0;
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my $used = 0;
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my $active = 0;
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eval {
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my $res = run_client_cmd($scfg, $storeid, "status");
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$active = 1;
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$total = $res->{total};
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$used = $res->{used};
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$free = $res->{avail};
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};
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if (my $err = $@) {
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warn $err;
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}
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return ($total, $free, $used, $active);
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}
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sub activate_storage {
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my ($class, $storeid, $scfg, $cache) = @_;
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return 1;
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}
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sub deactivate_storage {
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my ($class, $storeid, $scfg, $cache) = @_;
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return 1;
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}
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sub activate_volume {
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my ($class, $storeid, $scfg, $volname, $snapname, $cache) = @_;
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die "volume snapshot is not possible on pbs device" if $snapname;
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return 1;
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}
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sub deactivate_volume {
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my ($class, $storeid, $scfg, $volname, $snapname, $cache) = @_;
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die "volume snapshot is not possible on pbs device" if $snapname;
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return 1;
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}
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sub volume_size_info {
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my ($class, $scfg, $storeid, $volname, $timeout) = @_;
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my ($vtype, $name, undef, undef, undef, undef, $format) = $class->parse_volname($volname);
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my $data = run_client_cmd($scfg, $storeid, "files", [ $name ]);
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my $size = 0;
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foreach my $info (@$data) {
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$size += $info->{size} if $info->{size};
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}
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my $used = $size;
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return wantarray ? ($size, $format, $used, undef) : $size;
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}
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sub volume_resize {
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my ($class, $scfg, $storeid, $volname, $size, $running) = @_;
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die "volume resize is not possible on pbs device";
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}
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sub volume_snapshot {
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my ($class, $scfg, $storeid, $volname, $snap) = @_;
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die "volume snapshot is not possible on pbs device";
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}
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sub volume_snapshot_rollback {
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my ($class, $scfg, $storeid, $volname, $snap) = @_;
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die "volume snapshot rollback is not possible on pbs device";
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}
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sub volume_snapshot_delete {
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my ($class, $scfg, $storeid, $volname, $snap) = @_;
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die "volume snapshot delete is not possible on pbs device";
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}
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sub volume_has_feature {
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my ($class, $scfg, $feature, $storeid, $volname, $snapname, $running) = @_;
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return undef;
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}
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1;
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