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e34ce144 AA |
1 | package PVE::Storage::CephFSPlugin; |
2 | ||
3 | use strict; | |
4 | use warnings; | |
5402cea5 | 5 | |
e34ce144 AA |
6 | use IO::File; |
7 | use Net::IP; | |
8 | use File::Path; | |
5402cea5 | 9 | |
b0373adc TL |
10 | use PVE::CephConfig; |
11 | use PVE::JSONSchema qw(get_standard_option); | |
e34ce144 AA |
12 | use PVE::ProcFSTools; |
13 | use PVE::Storage::Plugin; | |
1022a7c4 | 14 | use PVE::Systemd; |
b0373adc | 15 | use PVE::Tools qw(run_command file_set_contents); |
e34ce144 AA |
16 | |
17 | use base qw(PVE::Storage::Plugin); | |
18 | ||
19 | sub cephfs_is_mounted { | |
20 | my ($scfg, $storeid, $mountdata) = @_; | |
21 | ||
4050fcc1 | 22 | my $cmd_option = PVE::CephConfig::ceph_connect_option($scfg, $storeid); |
e34ce144 | 23 | my $configfile = $cmd_option->{ceph_conf}; |
e34ce144 AA |
24 | |
25 | my $subdir = $scfg->{subdir} // '/'; | |
26 | my $mountpoint = $scfg->{path}; | |
e34ce144 AA |
27 | |
28 | $mountdata = PVE::ProcFSTools::parse_proc_mounts() if !$mountdata; | |
29 | return $mountpoint if grep { | |
30 | $_->[2] =~ m#^ceph|fuse\.ceph-fuse# && | |
82881c5f | 31 | $_->[0] =~ m#\Q:$subdir\E$|^ceph-fuse$# && |
e34ce144 AA |
32 | $_->[1] eq $mountpoint |
33 | } @$mountdata; | |
34 | ||
35 | warn "A filesystem is already mounted on $mountpoint\n" | |
36 | if grep { $_->[1] eq $mountpoint } @$mountdata; | |
37 | ||
38 | return undef; | |
39 | } | |
40 | ||
d9ece228 TL |
41 | # FIXME: remove in PVE 7.0 where systemd is recent enough to not have those |
42 | # local-fs/remote-fs dependency cycles generated for _netdev mounts... | |
43 | sub systemd_netmount { | |
44 | my ($where, $type, $what, $opts) = @_; | |
45 | ||
46 | # don't do default deps, systemd v241 generator produces ordering deps on both | |
47 | # local-fs(-pre) and remote-fs(-pre) targets if we use the required _netdev | |
48 | # option. Over thre corners this gets us an ordering cycle on shutdown, which | |
49 | # may make shutdown hang if the random cycle breaking hits the "wrong" unit to | |
50 | # delete. | |
51 | my $unit = <<"EOF"; | |
52 | [Unit] | |
53 | Description=${where} | |
54 | DefaultDependencies=no | |
55 | Requires=system.slice | |
56 | Wants=network-online.target | |
57 | Before=umount.target remote-fs.target | |
58 | After=systemd-journald.socket system.slice network.target -.mount remote-fs-pre.target network-online.target | |
59 | Conflicts=umount.target | |
60 | ||
61 | [Mount] | |
62 | Where=${where} | |
63 | What=${what} | |
64 | Type=${type} | |
65 | Options=${opts} | |
66 | EOF | |
67 | ||
1022a7c4 | 68 | my $unit_fn = PVE::Systemd::escape_unit($where, 1) . ".mount"; |
d9ece228 | 69 | my $unit_path = "/run/systemd/system/$unit_fn"; |
9a80a3ea | 70 | my $daemon_needs_reload = -e $unit_path; |
d9ece228 TL |
71 | |
72 | file_set_contents($unit_path, $unit); | |
9a80a3ea TL |
73 | |
74 | run_command(['systemctl', 'daemon-reload'], errmsg => "daemon-reload error") | |
75 | if $daemon_needs_reload; | |
d9ece228 TL |
76 | run_command(['systemctl', 'start', $unit_fn], errmsg => "mount error"); |
77 | ||
78 | } | |
79 | ||
e34ce144 AA |
80 | sub cephfs_mount { |
81 | my ($scfg, $storeid) = @_; | |
82 | ||
e34ce144 AA |
83 | my $mountpoint = $scfg->{path}; |
84 | my $subdir = $scfg->{subdir} // '/'; | |
85 | ||
4050fcc1 | 86 | my $cmd_option = PVE::CephConfig::ceph_connect_option($scfg, $storeid); |
e34ce144 AA |
87 | my $configfile = $cmd_option->{ceph_conf}; |
88 | my $secretfile = $cmd_option->{keyring}; | |
4050fcc1 | 89 | my $server = $cmd_option->{mon_host} // PVE::CephConfig::get_monaddr_list($configfile); |
25e222ca | 90 | my $type = 'ceph'; |
e34ce144 | 91 | |
25e222ca | 92 | my @opts = (); |
e34ce144 | 93 | if ($scfg->{fuse}) { |
25e222ca TL |
94 | $type = 'fuse.ceph'; |
95 | push @opts, "ceph.id=$cmd_option->{userid}"; | |
96 | push @opts, "ceph.keyfile=$secretfile" if defined($secretfile); | |
97 | push @opts, "ceph.conf=$configfile" if defined($configfile); | |
5402cea5 | 98 | } else { |
25e222ca | 99 | push @opts, "name=$cmd_option->{userid}"; |
d9ece228 | 100 | push @opts, "secretfile=$secretfile" if defined($secretfile); |
81c5c736 TL |
101 | |
102 | # FIXME: remove version check in PVE 7.0, only needed for Luminous -> Nautilus | |
7435dc90 | 103 | my ($subversions) = PVE::CephConfig::local_ceph_version(); |
e54c3e33 | 104 | push @opts, "conf=$configfile" if defined($configfile) && @$subversions[0] > 12; |
e34ce144 | 105 | } |
25e222ca TL |
106 | |
107 | push @opts, $scfg->{options} if $scfg->{options}; | |
108 | ||
109 | systemd_netmount($mountpoint, $type, "$server:$subdir", join(',', @opts)); | |
e34ce144 AA |
110 | } |
111 | ||
112 | # Configuration | |
113 | ||
114 | sub type { | |
115 | return 'cephfs'; | |
116 | } | |
117 | ||
118 | sub plugindata { | |
119 | return { | |
d1eb35ea | 120 | content => [ { vztmpl => 1, iso => 1, backup => 1, snippets => 1}, |
e34ce144 AA |
121 | { backup => 1 }], |
122 | }; | |
123 | } | |
124 | ||
125 | sub properties { | |
126 | return { | |
127 | fuse => { | |
128 | description => "Mount CephFS through FUSE.", | |
129 | type => 'boolean', | |
130 | }, | |
131 | subdir => { | |
132 | description => "Subdir to mount.", | |
133 | type => 'string', format => 'pve-storage-path', | |
134 | }, | |
135 | }; | |
136 | } | |
137 | ||
138 | sub options { | |
139 | return { | |
140 | path => { fixed => 1 }, | |
141 | monhost => { optional => 1}, | |
142 | nodes => { optional => 1 }, | |
143 | subdir => { optional => 1 }, | |
144 | disable => { optional => 1 }, | |
145 | options => { optional => 1 }, | |
146 | username => { optional => 1 }, | |
147 | content => { optional => 1 }, | |
148 | format => { optional => 1 }, | |
149 | mkdir => { optional => 1 }, | |
150 | fuse => { optional => 1 }, | |
151 | bwlimit => { optional => 1 }, | |
d35a0b4b | 152 | maxfiles => { optional => 1 }, |
e34ce144 AA |
153 | }; |
154 | } | |
155 | ||
156 | sub check_config { | |
157 | my ($class, $sectionId, $config, $create, $skipSchemaCheck) = @_; | |
158 | ||
159 | $config->{path} = "/mnt/pve/$sectionId" if $create && !$config->{path}; | |
160 | ||
161 | return $class->SUPER::check_config($sectionId, $config, $create, $skipSchemaCheck); | |
162 | } | |
163 | ||
164 | # Storage implementation | |
165 | ||
166 | sub on_add_hook { | |
167 | my ($class, $storeid, $scfg, %param) = @_; | |
168 | ||
169 | return if defined($scfg->{monhost}); # nothing to do if not pve managed ceph | |
170 | ||
4050fcc1 | 171 | PVE::CephConfig::ceph_create_keyfile($scfg->{type}, $storeid); |
e34ce144 AA |
172 | } |
173 | ||
174 | sub on_delete_hook { | |
175 | my ($class, $storeid, $scfg) = @_; | |
176 | ||
177 | return if defined($scfg->{monhost}); # nothing to do if not pve managed ceph | |
178 | ||
4050fcc1 | 179 | PVE::CephConfig::ceph_remove_keyfile($scfg->{type}, $storeid); |
e34ce144 AA |
180 | } |
181 | ||
182 | sub status { | |
183 | my ($class, $storeid, $scfg, $cache) = @_; | |
184 | ||
5402cea5 | 185 | $cache->{mountdata} //= PVE::ProcFSTools::parse_proc_mounts(); |
e34ce144 AA |
186 | |
187 | return undef if !cephfs_is_mounted($scfg, $storeid, $cache->{mountdata}); | |
188 | ||
189 | return $class->SUPER::status($storeid, $scfg, $cache); | |
190 | } | |
191 | ||
192 | sub activate_storage { | |
193 | my ($class, $storeid, $scfg, $cache) = @_; | |
194 | ||
5402cea5 | 195 | $cache->{mountdata} //= PVE::ProcFSTools::parse_proc_mounts(); |
e34ce144 | 196 | |
5402cea5 | 197 | # NOTE: mkpath may hang if storage is mounted but not reachable |
e34ce144 | 198 | if (!cephfs_is_mounted($scfg, $storeid, $cache->{mountdata})) { |
5402cea5 | 199 | my $path = $scfg->{path}; |
e34ce144 AA |
200 | |
201 | mkpath $path if !(defined($scfg->{mkdir}) && !$scfg->{mkdir}); | |
202 | ||
203 | die "unable to activate storage '$storeid' - " . | |
204 | "directory '$path' does not exist\n" if ! -d $path; | |
205 | ||
206 | cephfs_mount($scfg, $storeid); | |
207 | } | |
208 | ||
209 | $class->SUPER::activate_storage($storeid, $scfg, $cache); | |
210 | } | |
211 | ||
212 | sub deactivate_storage { | |
213 | my ($class, $storeid, $scfg, $cache) = @_; | |
214 | ||
5402cea5 | 215 | $cache->{mountdata} //= PVE::ProcFSTools::parse_proc_mounts(); |
e34ce144 AA |
216 | |
217 | my $path = $scfg->{path}; | |
218 | ||
219 | if (cephfs_is_mounted($scfg, $storeid, $cache->{mountdata})) { | |
5402cea5 | 220 | run_command(['/bin/umount', $path], errmsg => 'umount error'); |
e34ce144 AA |
221 | } |
222 | } | |
223 | ||
224 | 1; |