PVE/Storage/NexentaPlugin.pm

   1 package PVE::Storage::NexentaPlugin;
   2
   3 use strict;
   4 use warnings;
   5 use IO::File;
   6 use HTTP::Request;
   7 use LWP::UserAgent;
   8 use MIME::Base64;
   9 use JSON;
  10 use PVE::Tools qw(run_command file_read_firstline trim dir_glob_regex dir_glob_foreach);
  11 use PVE::Storage::Plugin;
  12 use PVE::JSONSchema qw(get_standard_option);
  13
  14 use base qw(PVE::Storage::Plugin);
  15
  16 sub nexenta_request {
  17     my ($scfg, $json) = @_;
  18
  19     my $uri = ( $scfg->{ssl} ? "https" : "http" ) . "://" . $scfg->{portal} . ":2000/rest/nms/";
  20     my $req = HTTP::Request->new( 'POST', $uri );
  21
  22     $req->header( 'Content-Type' => 'application/json' );
  23     $req->content( $json );
  24     my $token = encode_base64("$scfg->{login}:$scfg->{password}");
  25     $req->header( Authorization => "Basic $token" );
  26
  27     my $ua = LWP::UserAgent->new; # You might want some options here
  28     my $res = $ua->request($req);
  29     if (!$res->is_success) {
  30         die $res->content;
  31     }
  32     my $obj = eval { from_json($res->content); };
  33     die "JSON not valid. Content: " . $res->content if ($@);
  34     die "Nexenta API Error: " . $obj->{error}->{message} if $obj->{error}->{message};
  35     return $obj->{result} if $obj->{result};
  36     return 1;
  37 }
  38
  39 sub nexenta_get_zvol_size {
  40     my ($zvol, $scfg) = @_;
  41
  42     my $json = '{"method": "get_child_prop", "object": "zvol", "params": ["' . $zvol . '", "volsize"]}';
  43     my $volsize = nexenta_request($scfg, $json);
  44     if ($volsize =~ /^(\d+)([KMGT])$/) {
  45         my ($size, $unit) = ($1, $2);
  46         if ($unit eq 'K') {
  47             $size *= 1024;
  48         } elsif ($unit eq 'M') {
  49             $size *= 1024*1024;
  50         } elsif ($unit eq 'G') {
  51             $size *= 1024*1024*1024;
  52         } elsif ($unit eq 'T') {
  53             $size *= 1024*1024*1024*1024;
  54         }
  55         return $size;
  56     }
  57     die "got undefined size '$volsize'\n";
  58 }
  59
  60 sub nexenta_list_lun_mapping_entries {
  61     my ($zvol, $scfg) = @_;
  62
  63     my $json = '{"method": "list_lun_mapping_entries","object" : "scsidisk","params": ["'.$scfg->{pool}.'/'.$zvol.'"]}';
  64     my $map = nexenta_request($scfg,$json);
  65     return $map if $map;
  66     return undef;
  67 }
  68
  69 sub nexenta_add_lun_mapping_entry {
  70     my ($zvol, $scfg) = @_;
  71
  72     my $json = '{"method": "add_lun_mapping_entry","object" : "scsidisk","params": ["'.$scfg->{pool}.'/'.$zvol.'",{"target_group": "All"}]}';
  73
  74     nexenta_request($scfg, $json);
  75     return 1;
  76 }
  77
  78 sub nexenta_delete_lu {
  79     my ($zvol, $scfg) = @_;
  80
  81     my $json = '{"method": "delete_lu","object" : "scsidisk","params": ["'.$scfg->{pool}.'/'.$zvol.'"]}';
  82     nexenta_request($scfg, $json);
  83     return 1;
  84 }
  85
  86 sub nexenta_create_lu {
  87     my ($zvol, $scfg) = @_;
  88
  89     my $json = '{"method": "create_lu","object" : "scsidisk","params": ["'.$scfg->{pool}.'/'.$zvol.'",{}]}';
  90
  91     nexenta_request($scfg, $json);
  92     return 1;
  93 }
  94
  95 sub nexenta_create_zvol {
  96     my ($zvol, $size, $scfg) = @_;
  97
  98     my $blocksize = $scfg->{blocksize};
  99     my $nexentapool = $scfg->{pool};
 100
 101     my $json = '{"method": "create","object" : "zvol","params": ["'.$nexentapool.'/'.$zvol.'", "'.$size.'KB", "'.$blocksize.'", "1"]}';
 102
 103     nexenta_request($scfg, $json);
 104     return 1;
 105 }
 106
 107 sub nexenta_delete_zvol {
 108     my ($zvol, $scfg) = @_;
 109
 110     sleep 5;
 111     my $json = '{"method": "destroy","object" : "zvol","params": ["'.$scfg->{pool}.'/'.$zvol.'", ""]}';
 112     nexenta_request($scfg, $json);
 113     return 1;
 114 }
 115
 116 sub nexenta_list_zvol {
 117     my ($scfg) = @_;
 118
 119     my $json = '{"method": "get_names","object" : "zvol","params": [""]}';
 120     my $volumes = {};
 121
 122     my $zvols = nexenta_request($scfg, $json);
 123     return undef if !$zvols;
 124
 125     my $list = {};
 126
 127     foreach my $zvol (@$zvols) {
 128         my @values = split('/', $zvol);
 129         #$volumes->{$values[0]}->{$values[1]}->{volname} = $values[1];
 130
 131         my $pool = $values[0];
 132         my $image = $values[1];
 133         my $owner;
 134         if ($image =~ m/^(vm-(\d+)-\S+)$/) {
 135             $owner = $2;
 136         }
 137
 138         $list->{$pool}->{$image} = {
 139             name => $image,
 140             size => nexenta_get_zvol_size($zvol, $scfg),
 141             format => 'raw',
 142             vmid => $owner
 143         };
 144
 145     }
 146
 147     return $list;
 148 }
 149
 150 # Configuration
 151
 152 sub type {
 153     return 'nexenta';
 154 }
 155
 156 sub plugindata {
 157     return {
 158         content => [ {images => 1}, { images => 1 }],
 159     };
 160 }
 161
 162 sub properties {
 163     return {
 164         login => {
 165             description => "login",
 166             type => 'string',
 167         },
 168         password => {
 169             description => "password",
 170             type => 'string',
 171         },
 172         blocksize => {
 173             description => "block size",
 174             type => 'string',
 175         },
 176         ssl => {
 177             description => "ssl",
 178             type => 'boolean',
 179         },
 180     };
 181 }
 182
 183 sub options {
 184     return {
 185         nodes => { optional => 1 },
 186         disable => { optional => 1 },
 187         target => { fixed => 1 },
 188         portal => { fixed => 1 },
 189         login => { fixed => 1 },
 190         password => { fixed => 1 },
 191         pool => { fixed => 1 },
 192         blocksize => { fixed => 1 },
 193         ssl => { optional => 1 },
 194         content => { optional => 1 },
 195     };
 196
 197 }
 198
 199 # Storage implementation
 200
 201 sub parse_volname {
 202     my ($class, $volname) = @_;
 203
 204     if ($volname =~ m/^(vm-(\d+)-\S+)$/) {
 205         return ('images', $1, $2);
 206     }
 207
 208     return('images',$volname,'');
 209     #die "unable to parse lvm volume name '$volname'\n";
 210 }
 211
 212 sub path {
 213     my ($class, $scfg, $volname) = @_;
 214
 215     my ($vtype, $name, $vmid) = $class->parse_volname($volname);
 216
 217     my $target = $scfg->{target};
 218     my $portal = $scfg->{portal};
 219
 220     my $map = nexenta_list_lun_mapping_entries($name,$scfg);
 221     die "could not find lun number" if !$map;
 222     my $lun = @$map[0]->{lun};
 223     $lun =~ m/^(\d+)$/ or die "lun is not OK\n";
 224     $lun = $1;
 225     my $path = "iscsi://$portal/$target/$lun";
 226
 227     return ($path, $vmid, $vtype);
 228 }
 229
 230
 231 sub alloc_image {
 232     my ($class, $storeid, $scfg, $vmid, $fmt, $name, $size) = @_;
 233
 234     die "unsupported format '$fmt'" if $fmt ne 'raw';
 235
 236     die "illegal name '$name' - sould be 'vm-$vmid-*'\n"
 237         if  $name && $name !~ m/^vm-$vmid-/;
 238
 239     my $nexentapool = $scfg->{'pool'};
 240
 241     if (!$name) {
 242         my $volumes = nexenta_list_zvol($scfg);
 243         die "unable de get zvol list" if !$volumes;
 244
 245         for (my $i = 1; $i < 100; $i++) {
 246
 247             my $tn = "vm-$vmid-disk-$i";
 248             if (!defined ($volumes->{$nexentapool}->{$tn})) {
 249                 $name = $tn;
 250                 last;
 251             }
 252         }
 253     }
 254
 255     die "unable to allocate an image name for VM $vmid in storage '$storeid'\n"
 256         if !$name;
 257
 258     eval { nexenta_create_zvol($name, $size, $scfg); };
 259     sleep 1;
 260     eval { nexenta_create_lu($name, $scfg); };
 261     sleep 1;
 262     nexenta_add_lun_mapping_entry($name, $scfg);
 263
 264     return $name;
 265 }
 266
 267 sub free_image {
 268     my ($class, $storeid, $scfg, $volname) = @_;
 269
 270     my ($vtype, $name, $vmid) = $class->parse_volname($volname);
 271
 272     eval { nexenta_delete_lu($name, $scfg); };
 273     sleep 5;
 274     nexenta_delete_zvol($name, $scfg);
 275
 276
 277     return undef;
 278 }
 279
 280 sub list_images {
 281     my ($class, $storeid, $scfg, $vmid, $vollist, $cache) = @_;
 282
 283     $cache->{nexenta} = nexenta_list_zvol($scfg) if !$cache->{nexenta};
 284     my $nexentapool = $scfg->{pool};
 285     my $res = [];
 286     if (my $dat = $cache->{nexenta}->{$nexentapool}) {
 287         foreach my $image (keys %$dat) {
 288
 289             my $volname = $dat->{$image}->{name};
 290
 291             my $volid = "$storeid:$volname";
 292
 293
 294             my $owner = $dat->{$volname}->{vmid};
 295             if ($vollist) {
 296                 my $found = grep { $_ eq $volid } @$vollist;
 297                 next if !$found;
 298             } else {
 299                 next if defined ($vmid) && ($owner ne $vmid);
 300             }
 301
 302             my $info = $dat->{$volname};
 303             $info->{volid} = $volid;
 304
 305             push @$res, $info;
 306
 307         }
 308     }
 309
 310     return $res;
 311 }
 312
 313 sub status {
 314     my ($class, $storeid, $scfg, $cache) = @_;
 315
 316     my $total = 0;
 317     my $free = 0;
 318     my $used = 0;
 319     my $active = 1;
 320     return ($total,$free,$used,$active);
 321
 322     return undef;
 323 }
 324
 325 sub activate_storage {
 326     my ($class, $storeid, $scfg, $cache) = @_;
 327     return 1;
 328 }
 329
 330 sub deactivate_storage {
 331     my ($class, $storeid, $scfg, $cache) = @_;
 332     return 1;
 333 }
 334
 335 sub activate_volume {
 336     my ($class, $storeid, $scfg, $volname, $exclusive, $cache) = @_;
 337     return 1;
 338 }
 339
 340 sub deactivate_volume {
 341     my ($class, $storeid, $scfg, $volname, $exclusive, $cache) = @_;
 342     return 1;
 343 }
 344
 345 sub volume_size_info {
 346     my ($class, $scfg, $storeid, $volname, $timeout) = @_;
 347
 348     my $json = '{"method": "get_child_prop","object" : "zvol","params": ["'.$scfg->{pool}.'/'.$volname.'", "size_bytes"]}';
 349     my $size = nexenta_request($scfg, $json);
 350     return $size;
 351 }
 352
 353 sub volume_resize {
 354     my ($class, $scfg, $storeid, $volname, $size, $running) = @_;
 355
 356     my $json = '{"method": "set_child_prop","object" : "zvol","params": ["'.$scfg->{pool}.'/'.$volname.'", "volsize", "'.($size/1024).'KB"]}';
 357     nexenta_request($scfg, $json);
 358     return undef;
 359 }
 360
 361 sub volume_snapshot {
 362     my ($class, $scfg, $storeid, $volname, $snap, $running) = @_;
 363
 364     my $json = '{"method": "create_snapshot","object" : "zvol","params": ["'.$scfg->{pool}.'/'.$volname.'", "'.$snap.'", ""]}';
 365     nexenta_request($scfg, $json);
 366     return undef;
 367 }
 368
 369 sub volume_snapshot_rollback {
 370     my ($class, $scfg, $storeid, $volname, $snap) = @_;
 371
 372     eval { nexenta_delete_lu($volname, $scfg); };
 373
 374     my $json = '{"method": "rollback","object" : "snapshot","params": ["'.$scfg->{pool}.'/'.$volname.'@'.$snap.'", ""]}';
 375     nexenta_request($scfg, $json);
 376
 377     eval { nexenta_create_lu($volname, $scfg); };
 378
 379     nexenta_add_lun_mapping_entry($volname, $scfg);
 380 }
 381
 382 sub volume_snapshot_delete {
 383     my ($class, $scfg, $storeid, $volname, $snap, $running) = @_;
 384
 385     my $json = '{"method": "destroy","object" : "snapshot","params": ["'.$scfg->{pool}.'/'.$volname.'@'.$snap.'"]}';
 386     nexenta_request($scfg, $json);
 387 }
 388
 389 1;