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f4648aef AD |
1 | package PVE::Storage::GlusterfsPlugin; |
2 | ||
3 | use strict; | |
4 | use warnings; | |
5 | use IO::File; | |
6 | use File::Path; | |
7 | use PVE::Tools qw(run_command); | |
84c8e52d | 8 | use PVE::ProcFSTools; |
be48449c | 9 | use PVE::Network; |
f4648aef AD |
10 | use PVE::Storage::Plugin; |
11 | use PVE::JSONSchema qw(get_standard_option); | |
f4648aef AD |
12 | |
13 | use base qw(PVE::Storage::Plugin); | |
14 | ||
15 | # Glusterfs helper functions | |
16 | ||
a66159e3 DM |
17 | my $server_test_results = {}; |
18 | ||
19 | my $get_active_server = sub { | |
20 | my ($scfg, $return_default_if_offline) = @_; | |
21 | ||
22 | my $defaultserver = $scfg->{server} ? $scfg->{server} : 'localhost'; | |
23 | ||
24 | if ($return_default_if_offline && !defined($scfg->{server2})) { | |
25 | # avoid delays (there is no backup server anyways) | |
26 | return $defaultserver; | |
27 | } | |
28 | ||
29 | my $serverlist = [ $defaultserver ]; | |
30 | push @$serverlist, $scfg->{server2} if $scfg->{server2}; | |
31 | ||
32 | my $ctime = time(); | |
33 | foreach my $server (@$serverlist) { | |
34 | my $stat = $server_test_results->{$server}; | |
35 | return $server if $stat && $stat->{active} && (($ctime - $stat->{time}) <= 2); | |
36 | } | |
37 | ||
38 | foreach my $server (@$serverlist) { | |
39 | my $status = 0; | |
40 | ||
65644196 | 41 | if ($server && $server ne 'localhost' && $server ne '127.0.0.1' && $server ne '::1') { |
a66159e3 | 42 | |
be48449c WB |
43 | # ping the echo port (7) without service check |
44 | $status = PVE::Network::tcp_ping($server, undef, 2); | |
a66159e3 DM |
45 | |
46 | } else { | |
47 | ||
48 | my $parser = sub { | |
49 | my $line = shift; | |
50 | ||
51 | if ($line =~ m/Status: Started$/) { | |
52 | $status = 1; | |
53 | } | |
54 | }; | |
55 | ||
56 | my $cmd = ['/usr/sbin/gluster', 'volume', 'info', $scfg->{volume}]; | |
57 | ||
58 | run_command($cmd, errmsg => "glusterfs error", errfunc => sub {}, outfunc => $parser); | |
59 | } | |
60 | ||
61 | $server_test_results->{$server} = { time => time(), active => $status }; | |
62 | return $server if $status; | |
63 | } | |
64 | ||
65 | return $defaultserver if $return_default_if_offline; | |
66 | ||
67 | return undef; | |
68 | }; | |
69 | ||
f4648aef | 70 | sub glusterfs_is_mounted { |
a66159e3 | 71 | my ($volume, $mountpoint, $mountdata) = @_; |
f4648aef | 72 | |
80b64788 | 73 | $mountdata = PVE::ProcFSTools::parse_proc_mounts() if !$mountdata; |
f4648aef | 74 | |
80b64788 WB |
75 | return $mountpoint if grep { |
76 | $_->[2] eq 'fuse.glusterfs' && | |
aed6c85d | 77 | $_->[0] =~ /^\S+:\Q$volume\E$/ && |
80b64788 WB |
78 | $_->[1] eq $mountpoint |
79 | } @$mountdata; | |
f4648aef AD |
80 | return undef; |
81 | } | |
82 | ||
83 | sub glusterfs_mount { | |
84 | my ($server, $volume, $mountpoint) = @_; | |
85 | ||
86 | my $source = "$server:$volume"; | |
87 | ||
88 | my $cmd = ['/bin/mount', '-t', 'glusterfs', $source, $mountpoint]; | |
89 | ||
90 | run_command($cmd, errmsg => "mount error"); | |
91 | } | |
92 | ||
93 | # Configuration | |
94 | ||
95 | sub type { | |
96 | return 'glusterfs'; | |
97 | } | |
98 | ||
99 | sub plugindata { | |
100 | return { | |
101 | content => [ { images => 1, rootdir => 1, vztmpl => 1, iso => 1, backup => 1}, | |
102 | { images => 1 }], | |
103 | format => [ { raw => 1, qcow2 => 1, vmdk => 1 } , 'raw' ], | |
104 | }; | |
1a3459ac | 105 | } |
f4648aef AD |
106 | |
107 | sub properties { | |
108 | return { | |
109 | volume => { | |
110 | description => "Glusterfs Volume.", | |
111 | type => 'string', | |
112 | }, | |
a66159e3 DM |
113 | server2 => { |
114 | description => "Backup volfile server IP or DNS name.", | |
115 | type => 'string', format => 'pve-storage-server', | |
116 | requires => 'server', | |
117 | }, | |
187ca539 SM |
118 | transport => { |
119 | description => "Gluster transport: tcp or rdma", | |
120 | type => 'string', | |
121 | enum => ['tcp', 'rdma', 'unix'], | |
122 | }, | |
f4648aef AD |
123 | }; |
124 | } | |
125 | ||
126 | sub options { | |
127 | return { | |
128 | path => { fixed => 1 }, | |
129 | server => { optional => 1 }, | |
a66159e3 | 130 | server2 => { optional => 1 }, |
f4648aef | 131 | volume => { fixed => 1 }, |
187ca539 | 132 | transport => { optional => 1 }, |
f4648aef AD |
133 | nodes => { optional => 1 }, |
134 | disable => { optional => 1 }, | |
135 | maxfiles => { optional => 1 }, | |
136 | content => { optional => 1 }, | |
137 | format => { optional => 1 }, | |
138 | }; | |
139 | } | |
140 | ||
141 | ||
142 | sub check_config { | |
143 | my ($class, $sectionId, $config, $create, $skipSchemaCheck) = @_; | |
144 | ||
145 | $config->{path} = "/mnt/pve/$sectionId" if $create && !$config->{path}; | |
146 | ||
147 | return $class->SUPER::check_config($sectionId, $config, $create, $skipSchemaCheck); | |
148 | } | |
149 | ||
150 | # Storage implementation | |
151 | ||
db7922dc AD |
152 | sub parse_name_dir { |
153 | my $name = shift; | |
154 | ||
155 | if ($name =~ m!^((base-)?[^/\s]+\.(raw|qcow2|vmdk))$!) { | |
156 | return ($1, $3, $2); | |
157 | } | |
158 | ||
159 | die "unable to parse volume filename '$name'\n"; | |
160 | } | |
161 | ||
162 | my $find_free_diskname = sub { | |
163 | my ($imgdir, $vmid, $fmt) = @_; | |
164 | ||
165 | my $disk_ids = {}; | |
166 | PVE::Tools::dir_glob_foreach($imgdir, | |
167 | qr!(vm|base)-$vmid-disk-(\d+)\..*!, | |
168 | sub { | |
169 | my ($fn, $type, $disk) = @_; | |
170 | $disk_ids->{$disk} = 1; | |
171 | }); | |
172 | ||
173 | for (my $i = 1; $i < 100; $i++) { | |
174 | if (!$disk_ids->{$i}) { | |
175 | return "vm-$vmid-disk-$i.$fmt"; | |
176 | } | |
177 | } | |
178 | ||
179 | die "unable to allocate a new image name for VM $vmid in '$imgdir'\n"; | |
180 | }; | |
181 | ||
f4648aef | 182 | sub path { |
e67069eb | 183 | my ($class, $scfg, $volname, $storeid, $snapname) = @_; |
f4648aef | 184 | |
e67069eb DM |
185 | my ($vtype, $name, $vmid, undef, undef, $isBase, $format) = |
186 | $class->parse_volname($volname); | |
187 | ||
188 | # Note: qcow2/qed has internal snapshot, so path is always | |
189 | # the same (with or without snapshot => same file). | |
190 | die "can't snapshot this image format\n" | |
191 | if defined($snapname) && $format !~ m/^(qcow2|qed)$/; | |
f4648aef | 192 | |
f4648aef | 193 | my $path = undef; |
a66159e3 DM |
194 | if ($vtype eq 'images') { |
195 | ||
196 | my $server = &$get_active_server($scfg, 1); | |
197 | my $glustervolume = $scfg->{volume}; | |
187ca539 SM |
198 | my $transport = $scfg->{transport}; |
199 | my $protocol = "gluster"; | |
200 | ||
201 | if ($transport) { | |
202 | $protocol = "gluster+$transport"; | |
203 | } | |
a66159e3 | 204 | |
187ca539 | 205 | $path = "$protocol://$server/$glustervolume/images/$vmid/$name"; |
a66159e3 DM |
206 | |
207 | } else { | |
f4648aef AD |
208 | my $dir = $class->get_subdir($scfg, $vtype); |
209 | $path = "$dir/$name"; | |
210 | } | |
211 | ||
f4648aef AD |
212 | return wantarray ? ($path, $vmid, $vtype) : $path; |
213 | } | |
214 | ||
db7922dc AD |
215 | sub alloc_image { |
216 | my ($class, $storeid, $scfg, $vmid, $fmt, $name, $size) = @_; | |
217 | ||
218 | my $imagedir = $class->get_subdir($scfg, 'images'); | |
219 | $imagedir .= "/$vmid"; | |
220 | ||
221 | mkpath $imagedir; | |
222 | ||
223 | $name = &$find_free_diskname($imagedir, $vmid, $fmt) if !$name; | |
224 | ||
225 | my (undef, $tmpfmt) = parse_name_dir($name); | |
226 | ||
227 | die "illegal name '$name' - wrong extension for format ('$tmpfmt != '$fmt')\n" | |
228 | if $tmpfmt ne $fmt; | |
229 | ||
230 | my $path = "$imagedir/$name"; | |
231 | ||
232 | die "disk image '$path' already exists\n" if -e $path; | |
233 | ||
a66159e3 | 234 | my $server = &$get_active_server($scfg, 1); |
db7922dc AD |
235 | my $glustervolume = $scfg->{volume}; |
236 | my $volumepath = "gluster://$server/$glustervolume/images/$vmid/$name"; | |
237 | ||
238 | my $cmd = ['/usr/bin/qemu-img', 'create']; | |
239 | ||
240 | push @$cmd, '-o', 'preallocation=metadata' if $fmt eq 'qcow2'; | |
241 | ||
242 | push @$cmd, '-f', $fmt, $volumepath, "${size}K"; | |
243 | ||
244 | run_command($cmd, errmsg => "unable to create image"); | |
245 | ||
246 | return "$vmid/$name"; | |
247 | } | |
248 | ||
f4648aef AD |
249 | sub status { |
250 | my ($class, $storeid, $scfg, $cache) = @_; | |
251 | ||
80b64788 | 252 | $cache->{mountdata} = PVE::ProcFSTools::parse_proc_mounts() |
84c8e52d | 253 | if !$cache->{mountdata}; |
f4648aef AD |
254 | |
255 | my $path = $scfg->{path}; | |
f4648aef AD |
256 | |
257 | my $volume = $scfg->{volume}; | |
258 | ||
a66159e3 | 259 | return undef if !glusterfs_is_mounted($volume, $path, $cache->{mountdata}); |
f4648aef AD |
260 | |
261 | return $class->SUPER::status($storeid, $scfg, $cache); | |
262 | } | |
263 | ||
264 | sub activate_storage { | |
265 | my ($class, $storeid, $scfg, $cache) = @_; | |
266 | ||
80b64788 | 267 | $cache->{mountdata} = PVE::ProcFSTools::parse_proc_mounts() |
84c8e52d | 268 | if !$cache->{mountdata}; |
f4648aef AD |
269 | |
270 | my $path = $scfg->{path}; | |
f4648aef AD |
271 | my $volume = $scfg->{volume}; |
272 | ||
a66159e3 DM |
273 | if (!glusterfs_is_mounted($volume, $path, $cache->{mountdata})) { |
274 | ||
f4648aef AD |
275 | mkpath $path; |
276 | ||
277 | die "unable to activate storage '$storeid' - " . | |
278 | "directory '$path' does not exist\n" if ! -d $path; | |
279 | ||
a66159e3 DM |
280 | my $server = &$get_active_server($scfg, 1); |
281 | ||
282 | glusterfs_mount($server, $volume, $path); | |
f4648aef AD |
283 | } |
284 | ||
285 | $class->SUPER::activate_storage($storeid, $scfg, $cache); | |
286 | } | |
287 | ||
288 | sub deactivate_storage { | |
289 | my ($class, $storeid, $scfg, $cache) = @_; | |
290 | ||
80b64788 | 291 | $cache->{mountdata} = PVE::ProcFSTools::parse_proc_mounts() |
84c8e52d | 292 | if !$cache->{mountdata}; |
f4648aef AD |
293 | |
294 | my $path = $scfg->{path}; | |
f4648aef AD |
295 | my $volume = $scfg->{volume}; |
296 | ||
a66159e3 | 297 | if (glusterfs_is_mounted($volume, $path, $cache->{mountdata})) { |
f4648aef | 298 | my $cmd = ['/bin/umount', $path]; |
1a3459ac | 299 | run_command($cmd, errmsg => 'umount error'); |
f4648aef AD |
300 | } |
301 | } | |
302 | ||
303 | sub activate_volume { | |
02e797b8 | 304 | my ($class, $storeid, $scfg, $volname, $snapname, $cache) = @_; |
f4648aef AD |
305 | |
306 | # do nothing by default | |
307 | } | |
308 | ||
309 | sub deactivate_volume { | |
02e797b8 | 310 | my ($class, $storeid, $scfg, $volname, $snapname, $cache) = @_; |
f4648aef AD |
311 | |
312 | # do nothing by default | |
313 | } | |
314 | ||
315 | sub check_connection { | |
a66159e3 | 316 | my ($class, $storeid, $scfg, $cache) = @_; |
f4648aef | 317 | |
a66159e3 | 318 | my $server = &$get_active_server($scfg); |
f4648aef | 319 | |
a66159e3 | 320 | return defined($server) ? 1 : 0; |
f4648aef AD |
321 | } |
322 | ||
323 | 1; |