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Commit | Line | Data |
---|---|---|
7af97ad5 | 1 | package PVE::LXC::Setup; |
1c7f4f65 DM |
2 | |
3 | use strict; | |
4 | use warnings; | |
5 | ||
21ec7304 | 6 | use POSIX; |
e6e308ae OB |
7 | use Cwd 'abs_path'; |
8 | ||
21ec7304 TL |
9 | use PVE::Tools; |
10 | ||
11 | use PVE::LXC::Setup::Alpine; | |
12 | use PVE::LXC::Setup::ArchLinux; | |
81a6ec3f | 13 | use PVE::LXC::Setup::CentOS; |
21ec7304 TL |
14 | use PVE::LXC::Setup::Debian; |
15 | use PVE::LXC::Setup::Devuan; | |
b0143ab1 | 16 | use PVE::LXC::Setup::Fedora; |
ed027b58 | 17 | use PVE::LXC::Setup::Gentoo; |
21ec7304 TL |
18 | use PVE::LXC::Setup::SUSE; |
19 | use PVE::LXC::Setup::Ubuntu; | |
7db46e47 | 20 | use PVE::LXC::Setup::Unmanaged; |
1c7f4f65 DM |
21 | |
22 | my $plugins = { | |
21ec7304 TL |
23 | alpine => 'PVE::LXC::Setup::Alpine', |
24 | archlinux => 'PVE::LXC::Setup::ArchLinux', | |
25 | centos => 'PVE::LXC::Setup::CentOS', | |
7af97ad5 | 26 | debian => 'PVE::LXC::Setup::Debian', |
151c5b73 | 27 | devuan => 'PVE::LXC::Setup::Devuan', |
b0143ab1 | 28 | fedora => 'PVE::LXC::Setup::Fedora', |
ed027b58 | 29 | gentoo => 'PVE::LXC::Setup::Gentoo', |
21ec7304 TL |
30 | opensuse => 'PVE::LXC::Setup::SUSE', |
31 | ubuntu => 'PVE::LXC::Setup::Ubuntu', | |
7db46e47 | 32 | unmanaged => 'PVE::LXC::Setup::Unmanaged', |
1c7f4f65 DM |
33 | }; |
34 | ||
934a30b0 TL |
35 | # a map to allow supporting related distro flavours |
36 | my $plugin_alias = { | |
47447841 | 37 | 'opensuse-leap' => 'opensuse', |
005e72bd | 38 | 'opensuse-tumbleweed' => 'opensuse', |
21ec7304 TL |
39 | arch => 'archlinux', |
40 | sles => 'opensuse', | |
934a30b0 TL |
41 | }; |
42 | ||
bdd4194c | 43 | my $autodetect_type = sub { |
153747ff WB |
44 | my ($self, $rootdir, $os_release) = @_; |
45 | ||
46 | if (my $id = $os_release->{ID}) { | |
934a30b0 TL |
47 | return $id if $plugins->{$id}; |
48 | return $plugin_alias->{$id} if $plugin_alias->{$id}; | |
5c81c821 | 49 | warn "unknown ID '$id' in /etc/os-release file, trying fallback detection\n"; |
153747ff WB |
50 | } |
51 | ||
52 | # fallback compatibility checks | |
a8e58e9c DM |
53 | |
54 | my $lsb_fn = "$rootdir/etc/lsb-release"; | |
55 | if (-f $lsb_fn) { | |
56 | my $data = PVE::Tools::file_get_contents($lsb_fn); | |
57 | if ($data =~ m/^DISTRIB_ID=Ubuntu$/im) { | |
58 | return 'ubuntu'; | |
59 | } | |
75c7928e DM |
60 | } |
61 | ||
62 | if (-f "$rootdir/etc/debian_version") { | |
bdd4194c | 63 | return "debian"; |
151c5b73 TL |
64 | } elsif (-f "$rootdir/etc/devuan_version") { |
65 | return "devuan"; | |
fa7cb12b WB |
66 | } elsif (-f "$rootdir/etc/SuSE-brand" || -f "$rootdir/etc/SuSE-release") { |
67 | return "opensuse"; | |
b0143ab1 WB |
68 | } elsif (-f "$rootdir/etc/fedora-release") { |
69 | return "fedora"; | |
81a6ec3f WB |
70 | } elsif (-f "$rootdir/etc/centos-release" || -f "$rootdir/etc/redhat-release") { |
71 | return "centos"; | |
c1d32b55 WB |
72 | } elsif (-f "$rootdir/etc/arch-release") { |
73 | return "archlinux"; | |
a8700492 JV |
74 | } elsif (-f "$rootdir/etc/alpine-release") { |
75 | return "alpine"; | |
ed027b58 WB |
76 | } elsif (-f "$rootdir/etc/gentoo-release") { |
77 | return "gentoo"; | |
5f94d5e5 AE |
78 | } elsif (-f "$rootdir/etc/os-release") { |
79 | die "unable to detect OS distribution\n"; | |
80 | } else { | |
81 | warn "/etc/os-release file not found and autodetection failed, falling back to 'unmanaged'\n"; | |
82 | return "unmanaged"; | |
bdd4194c | 83 | } |
bdd4194c DM |
84 | }; |
85 | ||
1c7f4f65 | 86 | sub new { |
5b4657d0 | 87 | my ($class, $conf, $rootdir, $type) = @_; |
1c7f4f65 | 88 | |
5b4657d0 DM |
89 | die "no root directory\n" if !$rootdir || $rootdir eq '/'; |
90 | ||
250b158c | 91 | my $self = bless { conf => $conf, rootdir => $rootdir}, $class; |
1c7f4f65 | 92 | |
153747ff WB |
93 | my $os_release = $self->get_ct_os_release(); |
94 | ||
238b7e3e | 95 | if ($conf->{ostype} && $conf->{ostype} eq 'unmanaged') { |
7db46e47 | 96 | $type = 'unmanaged'; |
238b7e3e | 97 | } elsif (!defined($type)) { |
bdd4194c | 98 | # try to autodetect type |
153747ff | 99 | $type = &$autodetect_type($self, $rootdir, $os_release); |
238b7e3e DM |
100 | my $expected_type = $conf->{ostype} || $type; |
101 | ||
f9955be7 TL |
102 | if ($type ne $expected_type) { |
103 | warn "WARNING: /etc not present in CT, is the rootfs mounted?\n" | |
104 | if ! -e "$rootdir/etc"; | |
105 | warn "got unexpected ostype ($type != $expected_type)\n" | |
106 | } | |
bdd4194c | 107 | } |
238b7e3e | 108 | |
1db602d0 | 109 | my $plugin_class = $plugins->{$type} || die "no such OS type '$type'\n"; |
1c7f4f65 | 110 | |
153747ff | 111 | my $plugin = $plugin_class->new($conf, $rootdir, $os_release); |
23d928a1 | 112 | $self->{plugin} = $plugin; |
f08b2779 | 113 | $self->{in_chroot} = 0; |
23d928a1 WB |
114 | |
115 | # Cache some host files we need access to: | |
116 | $plugin->{host_resolv_conf} = PVE::INotify::read_file('resolvconf'); | |
e6e308ae | 117 | $plugin->{host_localtime} = abs_path('/etc/localtime'); |
c6a605f9 WB |
118 | |
119 | # pass on user namespace information: | |
120 | my ($id_map, $rootuid, $rootgid) = PVE::LXC::parse_id_maps($conf); | |
121 | if (@$id_map) { | |
122 | $plugin->{id_map} = $id_map; | |
123 | $plugin->{rootuid} = $rootuid; | |
124 | $plugin->{rootgid} = $rootgid; | |
125 | } | |
1db602d0 | 126 | |
1c7f4f65 DM |
127 | return $self; |
128 | } | |
129 | ||
9ba0e0b5 | 130 | # Forks into a chroot and executes $sub |
f08b2779 WB |
131 | sub protected_call { |
132 | my ($self, $sub) = @_; | |
133 | ||
134 | # avoid recursion: | |
135 | return $sub->() if $self->{in_chroot}; | |
136 | ||
9ba0e0b5 WB |
137 | pipe(my $res_in, my $res_out) or die "pipe failed: $!\n"; |
138 | ||
f08b2779 WB |
139 | my $child = fork(); |
140 | die "fork failed: $!\n" if !defined($child); | |
141 | ||
142 | if (!$child) { | |
9ba0e0b5 | 143 | close($res_in); |
f08b2779 WB |
144 | # avoid recursive forks |
145 | $self->{in_chroot} = 1; | |
f08b2779 | 146 | eval { |
229ab7fa | 147 | my $rootdir = $self->{rootdir}; |
f08b2779 WB |
148 | chroot($rootdir) or die "failed to change root to: $rootdir: $!\n"; |
149 | chdir('/') or die "failed to change to root directory\n"; | |
9ba0e0b5 WB |
150 | my $res = $sub->(); |
151 | if (defined($res)) { | |
152 | print {$res_out} "$res"; | |
153 | $res_out->flush(); | |
154 | } | |
f08b2779 WB |
155 | }; |
156 | if (my $err = $@) { | |
797e12e8 | 157 | warn $err; |
f08b2779 WB |
158 | POSIX::_exit(1); |
159 | } | |
160 | POSIX::_exit(0); | |
161 | } | |
9ba0e0b5 WB |
162 | close($res_out); |
163 | my $result = do { local $/ = undef; <$res_in> }; | |
f08b2779 | 164 | while (waitpid($child, 0) != $child) {} |
952de558 WB |
165 | if ($? != 0) { |
166 | my $method = (caller(1))[3]; | |
167 | die "error in setup task $method\n"; | |
168 | } | |
9ba0e0b5 | 169 | return $result; |
f08b2779 WB |
170 | } |
171 | ||
142444d5 DM |
172 | sub template_fixup { |
173 | my ($self) = @_; | |
1db602d0 | 174 | $self->protected_call(sub { $self->{plugin}->template_fixup($self->{conf}) }); |
142444d5 DM |
175 | } |
176 | ||
1c7f4f65 | 177 | sub setup_network { |
55fa4e09 | 178 | my ($self) = @_; |
1db602d0 | 179 | $self->protected_call(sub { $self->{plugin}->setup_network($self->{conf}) }); |
1c7f4f65 DM |
180 | } |
181 | ||
182 | sub set_hostname { | |
183 | my ($self) = @_; | |
1db602d0 | 184 | $self->protected_call(sub { $self->{plugin}->set_hostname($self->{conf}) }); |
1c7f4f65 DM |
185 | } |
186 | ||
c325b32f DM |
187 | sub set_dns { |
188 | my ($self) = @_; | |
1db602d0 | 189 | $self->protected_call(sub { $self->{plugin}->set_dns($self->{conf}) }); |
c325b32f DM |
190 | } |
191 | ||
e6e308ae OB |
192 | sub set_timezone { |
193 | my ($self) = @_; | |
1db602d0 | 194 | $self->protected_call(sub { $self->{plugin}->set_timezone($self->{conf}) }); |
e6e308ae OB |
195 | } |
196 | ||
d66768a2 DM |
197 | sub setup_init { |
198 | my ($self) = @_; | |
1db602d0 | 199 | $self->protected_call(sub { $self->{plugin}->setup_init($self->{conf}) }); |
d66768a2 DM |
200 | } |
201 | ||
168d6b07 DM |
202 | sub set_user_password { |
203 | my ($self, $user, $pw) = @_; | |
1db602d0 | 204 | $self->protected_call(sub { $self->{plugin}->set_user_password($self->{conf}, $user, $pw) }); |
1c7f4f65 DM |
205 | } |
206 | ||
6d9173c3 TL |
207 | my sub generate_ssh_key { # create temporary key in hosts' /run, then read and unlink |
208 | my ($type, $comment) = @_; | |
209 | ||
210 | my $key_id = ''; | |
211 | my $keygen_outfunc = sub { | |
212 | if ($_[0] =~ m/^((?:[0-9a-f]{2}:)+[0-9a-f]{2}|SHA256:[0-9a-z+\/]{43})\s+\Q$comment\E$/i) { | |
213 | $key_id = $_[0]; | |
214 | } | |
215 | }; | |
216 | my $file = "/run/pve/.tmp$$.$type"; | |
217 | PVE::Tools::run_command( | |
218 | ['ssh-keygen', '-f', $file, '-t', $type, '-N', '', '-E', 'sha256', '-C', $comment], | |
219 | outfunc => $keygen_outfunc, | |
220 | ); | |
221 | my ($private) = (PVE::Tools::file_get_contents($file) =~ /^(.*)$/sg); # untaint | |
222 | my ($public) = (PVE::Tools::file_get_contents("$file.pub") =~ /^(.*)$/sg); # untaint | |
223 | unlink $file, "$file.pub"; | |
224 | ||
225 | return ($key_id, $private, $public); | |
226 | } | |
227 | ||
7ee31468 DM |
228 | sub rewrite_ssh_host_keys { |
229 | my ($self) = @_; | |
230 | ||
238b7e3e DM |
231 | return if !$self->{plugin}; # unmanaged |
232 | ||
797e12e8 | 233 | my $plugin = $self->{plugin}; |
797e12e8 | 234 | |
bc5b7618 | 235 | my $keynames = $plugin->ssh_host_key_types_to_generate(); |
797e12e8 | 236 | |
bc5b7618 | 237 | return if ! -d "$self->{rootdir}/etc/ssh" || !$keynames || !scalar(keys $keynames->%*); |
797e12e8 | 238 | |
9cc77d55 | 239 | my $hostname = $self->{conf}->{hostname} || 'localhost'; |
797e12e8 WB |
240 | $hostname =~ s/\..*$//; |
241 | ||
6d9173c3 TL |
242 | my $keyfiles = []; |
243 | for my $keytype (keys $keynames->%*) { | |
797e12e8 | 244 | my $basename = $keynames->{$keytype}; |
797e12e8 | 245 | print "Creating SSH host key '$basename' - this may take some time ...\n"; |
6d9173c3 TL |
246 | my ($id, $private, $public) = generate_ssh_key($keytype, "root\@$hostname"); |
247 | print "done: $id\n"; | |
248 | ||
249 | push $keyfiles->@*, ["/etc/ssh/$basename", $private, 0600], ["/etc/ssh/$basename.pub", $public, 0644]; | |
797e12e8 WB |
250 | } |
251 | ||
6d9173c3 TL |
252 | $self->protected_call(sub { # write them now all to the CTs rootfs at once |
253 | for my $file ($keyfiles->@*) { | |
254 | $plugin->ct_file_set_contents($file->@*); | |
797e12e8 | 255 | } |
30e7205e | 256 | }); |
1db602d0 | 257 | } |
7ee31468 | 258 | |
24f37c3d TL |
259 | sub pre_start_hook { |
260 | my ($self) = @_; | |
261 | ||
f3aedcdb | 262 | $self->protected_call(sub { $self->{plugin}->pre_start_hook($self->{conf}) }); |
d66768a2 DM |
263 | } |
264 | ||
64d4c144 OB |
265 | sub post_clone_hook { |
266 | my ($self, $conf) = @_; | |
267 | ||
1db602d0 | 268 | $self->protected_call(sub { $self->{plugin}->post_clone_hook($conf) }); |
64d4c144 OB |
269 | } |
270 | ||
d66768a2 | 271 | sub post_create_hook { |
f36ce482 | 272 | my ($self, $root_password, $ssh_keys) = @_; |
1c7f4f65 | 273 | |
1db602d0 | 274 | $self->protected_call(sub { |
f36ce482 | 275 | $self->{plugin}->post_create_hook($self->{conf}, $root_password, $ssh_keys); |
1db602d0 | 276 | }); |
797e12e8 | 277 | $self->rewrite_ssh_host_keys(); |
1c7f4f65 DM |
278 | } |
279 | ||
42216b6b TL |
280 | sub unified_cgroupv2_support { |
281 | my ($self) = @_; | |
282 | ||
283 | $self->protected_call(sub { $self->{plugin}->unified_cgroupv2_support() }); | |
284 | } | |
285 | ||
153747ff WB |
286 | # os-release(5): |
287 | # (...) a newline-separated list of environment-like shell-compatible | |
288 | # variable assignments. (...) beyond mere variable assignments, no shell | |
289 | # features are supported (this means variable expansion is explicitly not | |
290 | # supported) (...). Variable assignment values must be enclosed in double or | |
291 | # single quotes *if* they include spaces, semicolons or other special | |
292 | # characters outside of A-Z, a-z, 0-9. Shell special characters ("$", quotes, | |
293 | # backslash, backtick) must be escaped with backslashes (...). All strings | |
294 | # should be in UTF-8 format, and non-printable characters should not be used. | |
295 | # It is not supported to concatenate multiple individually quoted strings. | |
296 | # Lines beginning with "#" shall be ignored as comments. | |
297 | my $parse_os_release = sub { | |
298 | my ($data) = @_; | |
299 | my $variables = {}; | |
300 | while (defined($data) && $data =~ /^(.+)$/gm) { | |
301 | next if $1 !~ /^\s*([a-zA-Z_][a-zA-Z0-9_]*)=(.*)$/; | |
302 | my ($var, $content) = ($1, $2); | |
303 | chomp $content; | |
304 | ||
305 | if ($content =~ /^'([^']*)'/) { | |
306 | $variables->{$var} = $1; | |
307 | } elsif ($content =~ /^"((?:[^"\\]|\\.)*)"/) { | |
308 | my $s = $1; | |
309 | $s =~ s/(\\["'`nt\$\\])/"\"$1\""/eeg; | |
310 | $variables->{$var} = $s; | |
311 | } elsif ($content =~ /^([A-Za-z0-9]*)/) { | |
312 | $variables->{$var} = $1; | |
313 | } | |
314 | } | |
315 | return $variables; | |
316 | }; | |
317 | ||
318 | sub get_ct_os_release { | |
319 | my ($self) = @_; | |
320 | ||
1db602d0 | 321 | my $data = $self->protected_call(sub { |
153747ff WB |
322 | if (-f '/etc/os-release') { |
323 | return PVE::Tools::file_get_contents('/etc/os-release'); | |
324 | } elsif (-f '/usr/lib/os-release') { | |
325 | return PVE::Tools::file_get_contents('/usr/lib/os-release'); | |
326 | } | |
327 | return undef; | |
1db602d0 | 328 | }); |
153747ff WB |
329 | |
330 | return &$parse_os_release($data); | |
331 | } | |
332 | ||
1c7f4f65 | 333 | 1; |