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