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 $obj->{result};
  36     return 1;
  37 }
  38
  39 sub nexenta_list_lun_mapping_entries {
  40     my ($zvol, $scfg) = @_;
  41
  42     my $json = '{"method": "list_lun_mapping_entries","object" : "scsidisk","params": ["'.$scfg->{pool}.'/'.$zvol.'"]}';
  43     my $map = nexenta_request($scfg,$json);
  44     return $map if $map;
  45     return undef;
  46 }
  47
  48 sub nexenta_add_lun_mapping_entry {
  49     my ($zvol, $scfg) = @_;
  50
  51     my $json = '{"method": "add_lun_mapping_entry","object" : "scsidisk","params": ["'.$scfg->{pool}.'/'.$zvol.'",{"target_group": "All"}]}';
  52
  53     nexenta_request($scfg, $json);
  54     return 1;
  55 }
  56
  57 sub nexenta_delete_lu {
  58     my ($zvol, $scfg) = @_;
  59
  60     my $json = '{"method": "delete_lu","object" : "scsidisk","params": ["'.$scfg->{pool}.'/'.$zvol.'"]}';
  61     nexenta_request($scfg, $json);
  62     return 1;
  63 }
  64
  65 sub nexenta_create_lu {
  66     my ($zvol, $scfg) = @_;
  67
  68     my $json = '{"method": "create_lu","object" : "scsidisk","params": ["'.$scfg->{pool}.'/'.$zvol.'",{}]}';
  69
  70     nexenta_request($scfg, $json);
  71     return 1;
  72 }
  73
  74 sub nexenta_create_zvol {
  75     my ($zvol, $size, $scfg) = @_;
  76
  77     my $blocksize = $scfg->{blocksize};
  78     my $nexentapool = $scfg->{pool};
  79
  80     my $json = '{"method": "create","object" : "zvol","params": ["'.$nexentapool.'/'.$zvol.'", "'.$size.'KB", "'.$blocksize.'", "1"]}';
  81
  82     nexenta_request($scfg, $json);
  83     return 1;
  84 }
  85
  86 sub nexenta_delete_zvol {
  87     my ($zvol, $scfg) = @_;
  88
  89     sleep 5;
  90     my $json = '{"method": "destroy","object" : "zvol","params": ["'.$scfg->{pool}.'/'.$zvol.'", ""]}';
  91     nexenta_request($scfg, $json);
  92     return 1;
  93 }
  94
  95 sub nexenta_list_zvol {
  96     my ($scfg) = @_;
  97
  98     my $json = '{"method": "get_names","object" : "zvol","params": [""]}';
  99     my $volumes = {};
 100
 101     my $zvols = nexenta_request($scfg, $json);
 102     return undef if !$zvols;
 103
 104     my $list = {};
 105
 106     foreach my $zvol (@$zvols) {
 107         my @values = split('/', $zvol);
 108         #$volumes->{$values[0]}->{$values[1]}->{volname} = $values[1];
 109
 110         my $pool = $values[0];
 111         my $image = $values[1];
 112         my $owner;
 113         if ($image =~ m/^(vm-(\d+)-\S+)$/) {
 114             $owner = $2;
 115         }
 116
 117         $list->{$pool}->{$image} = {
 118             name => $image,
 119             size => "",
 120             vmid => $owner
 121         };
 122
 123     }
 124
 125     return $list;
 126 }
 127
 128 # Configuration
 129
 130 sub type {
 131     return 'nexenta';
 132 }
 133
 134 sub plugindata {
 135     return {
 136         content => [ {images => 1}, { images => 1 }],
 137     };
 138 }
 139
 140 sub properties {
 141     return {
 142         login => {
 143             description => "login",
 144             type => 'string',
 145         },
 146         password => {
 147             description => "password",
 148             type => 'string',
 149         },
 150         blocksize => {
 151             description => "block size",
 152             type => 'string',
 153         },
 154         ssl => {
 155             description => "ssl",
 156             type => 'boolean',
 157         },
 158     };
 159 }
 160
 161 sub options {
 162     return {
 163         nodes => { optional => 1 },
 164         disable => { optional => 1 },
 165         target => { fixed => 1 },
 166         portal => { fixed => 1 },
 167         login => { fixed => 1 },
 168         password => { fixed => 1 },
 169         pool => { fixed => 1 },
 170         blocksize => { fixed => 1 },
 171         ssl => { optional => 1 },
 172         content => { optional => 1 },
 173     };
 174
 175 }
 176
 177 # Storage implementation
 178
 179 sub parse_volname {
 180     my ($class, $volname) = @_;
 181
 182     if ($volname =~ m/^(vm-(\d+)-\S+)$/) {
 183         return ('images', $1, $2);
 184     }
 185
 186     return('images',$volname,'');
 187     #die "unable to parse lvm volume name '$volname'\n";
 188 }
 189
 190 sub path {
 191     my ($class, $scfg, $volname) = @_;
 192
 193     my ($vtype, $name, $vmid) = $class->parse_volname($volname);
 194
 195     my $target = $scfg->{target};
 196     my $portal = $scfg->{portal};
 197
 198     my $map = nexenta_list_lun_mapping_entries($name,$scfg);
 199     die "could not find lun number" if !$map;
 200     my $lun = @$map[0]->{lun};
 201     $lun =~ m/^(\d+)$/ or die "lun is not OK\n";
 202     $lun = $1;
 203     my $path = "iscsi://$portal/$target/$lun";
 204
 205     return ($path, $vmid, $vtype);
 206 }
 207
 208
 209 sub alloc_image {
 210     my ($class, $storeid, $scfg, $vmid, $fmt, $name, $size) = @_;
 211
 212     die "unsupported format '$fmt'" if $fmt ne 'raw';
 213
 214     die "illegal name '$name' - sould be 'vm-$vmid-*'\n"
 215         if  $name && $name !~ m/^vm-$vmid-/;
 216
 217     my $nexentapool = $scfg->{'pool'};
 218
 219     if (!$name) {
 220         my $volumes = nexenta_list_zvol($scfg);
 221         die "unable de get zvol list" if !$volumes;
 222
 223         for (my $i = 1; $i < 100; $i++) {
 224
 225             my $tn = "vm-$vmid-disk-$i";
 226             if (!defined ($volumes->{$nexentapool}->{$tn})) {
 227                 $name = $tn;
 228                 last;
 229             }
 230         }
 231     }
 232
 233     die "unable to allocate an image name for VM $vmid in storage '$storeid'\n"
 234         if !$name;
 235
 236     eval { nexenta_create_zvol($name, $size, $scfg); };
 237     sleep 1;
 238     eval { nexenta_create_lu($name, $scfg); };
 239     sleep 1;
 240     nexenta_add_lun_mapping_entry($name, $scfg);
 241
 242     return $name;
 243 }
 244
 245 sub free_image {
 246     my ($class, $storeid, $scfg, $volname) = @_;
 247
 248     my ($vtype, $name, $vmid) = $class->parse_volname($volname);
 249
 250     eval { nexenta_delete_lu($name, $scfg); };
 251     sleep 5;
 252     nexenta_delete_zvol($name, $scfg);
 253
 254
 255     return undef;
 256 }
 257
 258 sub list_images {
 259     my ($class, $storeid, $scfg, $vmid, $vollist, $cache) = @_;
 260
 261     $cache->{nexenta} = nexenta_list_zvol($scfg) if !$cache->{nexenta};
 262     my $nexentapool = $scfg->{pool};
 263     my $res = [];
 264     if (my $dat = $cache->{nexenta}->{$nexentapool}) {
 265         foreach my $image (keys %$dat) {
 266
 267             my $volname = $dat->{$image}->{name};
 268
 269             my $volid = "$storeid:$volname";
 270
 271
 272             my $owner = $dat->{$volname}->{vmid};
 273             if ($vollist) {
 274                 my $found = grep { $_ eq $volid } @$vollist;
 275                 next if !$found;
 276             } else {
 277                 next if defined ($vmid) && ($owner ne $vmid);
 278             }
 279
 280             my $info = $dat->{$volname};
 281             $info->{volid} = $volid;
 282
 283             push @$res, $info;
 284
 285         }
 286     }
 287
 288     return $res;
 289 }
 290
 291 sub status {
 292     my ($class, $storeid, $scfg, $cache) = @_;
 293
 294     my $total = 0;
 295     my $free = 0;
 296     my $used = 0;
 297     my $active = 1;
 298     return ($total,$free,$used,$active);
 299
 300     return undef;
 301 }
 302
 303 sub activate_storage {
 304     my ($class, $storeid, $scfg, $cache) = @_;
 305     return 1;
 306 }
 307
 308 sub deactivate_storage {
 309     my ($class, $storeid, $scfg, $cache) = @_;
 310     return 1;
 311 }
 312
 313 sub activate_volume {
 314     my ($class, $storeid, $scfg, $volname, $exclusive, $cache) = @_;
 315     return 1;
 316 }
 317
 318 sub deactivate_volume {
 319     my ($class, $storeid, $scfg, $volname, $exclusive, $cache) = @_;
 320     return 1;
 321 }
 322
 323 sub volume_size_info {
 324     my ($class, $scfg, $storeid, $volname, $timeout) = @_;
 325
 326     my $json = '{"method": "get_child_prop","object" : "zvol","params": ["'.$scfg->{pool}.'/'.$volname.'", "size_bytes"]}';
 327     my $size = nexenta_request($scfg, $json);
 328     return $size;
 329 }
 330
 331 sub volume_resize {
 332     my ($class, $scfg, $storeid, $volname, $size, $running) = @_;
 333
 334     my $json = '{"method": "set_child_prop","object" : "zvol","params": ["'.$scfg->{pool}.'/'.$volname.'", "volsize", "'.($size/1024).'KB"]}';
 335     nexenta_request($scfg, $json);
 336     return undef;
 337 }
 338
 339 sub volume_snapshot {
 340     my ($class, $scfg, $storeid, $volname, $snap, $running) = @_;
 341
 342     my $json = '{"method": "create_snapshot","object" : "zvol","params": ["'.$scfg->{pool}.'/'.$volname.'", "'.$snap.'", ""]}';
 343     nexenta_request($scfg, $json);
 344     return undef;
 345 }
 346
 347 sub volume_snapshot_rollback {
 348     my ($class, $scfg, $storeid, $volname, $snap) = @_;
 349
 350     eval { nexenta_delete_lu($volname, $scfg); };
 351
 352     my $json = '{"method": "rollback","object" : "snapshot","params": ["'.$scfg->{pool}.'/'.$volname.'@'.$snap.'", ""]}';
 353     nexenta_request($scfg, $json);
 354
 355     eval { nexenta_create_lu($volname, $scfg); };
 356
 357     nexenta_add_lun_mapping_entry($volname, $scfg);
 358 }
 359
 360 1;