]>
git.proxmox.com Git - pve-container.git/blob - src/PVE/LXC/Setup.pm
1 package PVE
::LXC
::Setup
;
8 use PVE
::LXC
::Setup
::Debian
;
9 use PVE
::LXC
::Setup
::Ubuntu
;
10 use PVE
::LXC
::Setup
::CentOS
;
11 use PVE
::LXC
::Setup
::Fedora
;
12 use PVE
::LXC
::Setup
::SUSE
;
13 use PVE
::LXC
::Setup
::ArchLinux
;
14 use PVE
::LXC
::Setup
::Alpine
;
15 use PVE
::LXC
::Setup
::Gentoo
;
18 debian
=> 'PVE::LXC::Setup::Debian',
19 ubuntu
=> 'PVE::LXC::Setup::Ubuntu',
20 centos
=> 'PVE::LXC::Setup::CentOS',
21 fedora
=> 'PVE::LXC::Setup::Fedora',
22 opensuse
=> 'PVE::LXC::Setup::SUSE',
23 archlinux
=> 'PVE::LXC::Setup::ArchLinux',
24 alpine
=> 'PVE::LXC::Setup::Alpine',
25 gentoo
=> 'PVE::LXC::Setup::Gentoo',
28 # a map to allow supporting related distro flavours
34 my $autodetect_type = sub {
35 my ($self, $rootdir, $os_release) = @_;
37 if (my $id = $os_release->{ID
}) {
38 return $id if $plugins->{$id};
39 return $plugin_alias->{$id} if $plugin_alias->{$id};
42 # fallback compatibility checks
44 my $lsb_fn = "$rootdir/etc/lsb-release";
46 my $data = PVE
::Tools
::file_get_contents
($lsb_fn);
47 if ($data =~ m/^DISTRIB_ID=Ubuntu$/im) {
52 if (-f
"$rootdir/etc/debian_version") {
54 } elsif (-f
"$rootdir/etc/SuSE-brand" || -f
"$rootdir/etc/SuSE-release") {
56 } elsif (-f
"$rootdir/etc/fedora-release") {
58 } elsif (-f
"$rootdir/etc/centos-release" || -f
"$rootdir/etc/redhat-release") {
60 } elsif (-f
"$rootdir/etc/arch-release") {
62 } elsif (-f
"$rootdir/etc/alpine-release") {
64 } elsif (-f
"$rootdir/etc/gentoo-release") {
67 die "unable to detect OS distribution\n";
71 my ($class, $conf, $rootdir, $type) = @_;
73 die "no root directory\n" if !$rootdir || $rootdir eq '/';
75 my $self = bless { conf
=> $conf, rootdir
=> $rootdir};
77 my $os_release = $self->get_ct_os_release();
79 if ($conf->{ostype
} && $conf->{ostype
} eq 'unmanaged') {
81 } elsif (!defined($type)) {
82 # try to autodetect type
83 $type = &$autodetect_type($self, $rootdir, $os_release);
84 my $expected_type = $conf->{ostype
} || $type;
86 warn "got unexpected ostype ($type != $expected_type)\n"
87 if $type ne $expected_type;
90 my $plugin_class = $plugins->{$type} ||
91 "no such OS type '$type'\n";
93 my $plugin = $plugin_class->new($conf, $rootdir, $os_release);
94 $self->{plugin
} = $plugin;
95 $self->{in_chroot
} = 0;
97 # Cache some host files we need access to:
98 $plugin->{host_resolv_conf
} = PVE
::INotify
::read_file
('resolvconf');
100 # pass on user namespace information:
101 my ($id_map, $rootuid, $rootgid) = PVE
::LXC
::parse_id_maps
($conf);
103 $plugin->{id_map
} = $id_map;
104 $plugin->{rootuid
} = $rootuid;
105 $plugin->{rootgid
} = $rootgid;
111 # Forks into a chroot and executes $sub
113 my ($self, $sub) = @_;
116 return $sub->() if $self->{in_chroot
};
118 my $rootdir = $self->{rootdir
};
119 if (!-d
"$rootdir/dev" && !mkdir("$rootdir/dev")) {
120 die "failed to create temporary /dev directory: $!\n";
123 pipe(my $res_in, my $res_out) or die "pipe failed: $!\n";
126 die "fork failed: $!\n" if !defined($child);
130 # avoid recursive forks
131 $self->{in_chroot
} = 1;
133 chroot($rootdir) or die "failed to change root to: $rootdir: $!\n";
134 chdir('/') or die "failed to change to root directory\n";
137 print {$res_out} "$res";
148 my $result = do { local $/ = undef; <$res_in> };
149 while (waitpid($child, 0) != $child) {}
151 my $method = (caller(1))[3];
152 die "error in setup task $method\n";
160 return if !$self->{plugin
}; # unmanaged
163 $self->{plugin
}->template_fixup($self->{conf
});
165 $self->protected_call($code);
171 return if !$self->{plugin
}; # unmanaged
174 $self->{plugin
}->setup_network($self->{conf
});
176 $self->protected_call($code);
182 return if !$self->{plugin
}; # unmanaged
185 $self->{plugin
}->set_hostname($self->{conf
});
187 $self->protected_call($code);
193 return if !$self->{plugin
}; # unmanaged
196 $self->{plugin
}->set_dns($self->{conf
});
198 $self->protected_call($code);
204 return if !$self->{plugin
}; # unmanaged
207 $self->{plugin
}->setup_init($self->{conf
});
209 $self->protected_call($code);
212 sub set_user_password
{
213 my ($self, $user, $pw) = @_;
215 return if !$self->{plugin
}; # unmanaged
218 $self->{plugin
}->set_user_password($self->{conf
}, $user, $pw);
220 $self->protected_call($code);
223 sub rewrite_ssh_host_keys
{
226 return if !$self->{plugin
}; # unmanaged
228 my $conf = $self->{conf
};
229 my $plugin = $self->{plugin
};
230 my $rootdir = $self->{rootdir
};
232 return if ! -d
"$rootdir/etc/ssh";
235 rsa
=> 'ssh_host_rsa_key',
236 dsa
=> 'ssh_host_dsa_key',
237 ecdsa
=> 'ssh_host_ecdsa_key',
238 ed25519
=> 'ssh_host_ed25519_key',
241 my $hostname = $conf->{hostname
} || 'localhost';
242 $hostname =~ s/\..*$//;
243 my $ssh_comment = "root\@$hostname";
245 my $keygen_outfunc = sub {
248 print "done: $line\n"
249 if $line =~ m/^(?:[0-9a-f]{2}:)+[0-9a-f]{2}\s+\Q$ssh_comment\E$/i ||
250 $line =~ m/^SHA256:[0-9a-z+\/]{43}\s
+\Q
$ssh_comment\E$/i;
253 # Create temporary keys in /tmp on the host
255 foreach my $keytype (keys %$keynames) {
256 my $basename = $keynames->{$keytype};
257 my $file = "/tmp/$$.$basename";
258 print "Creating SSH host key '$basename' - this may take some time ...\n";
259 my $cmd = ['ssh-keygen', '-f', $file, '-t', $keytype,
260 '-N', '', '-E', 'sha256', '-C', $ssh_comment];
261 PVE
::Tools
::run_command
($cmd, outfunc
=> $keygen_outfunc);
262 $keyfiles->{"/etc/ssh/$basename"} = [PVE
::Tools
::file_get_contents
($file), 0600];
263 $keyfiles->{"/etc/ssh/$basename.pub"} = [PVE
::Tools
::file_get_contents
("$file.pub"), 0644];
268 # Write keys out in a protected call
271 foreach my $file (keys %$keyfiles) {
272 $plugin->ct_file_set_contents($file, @{$keyfiles->{$file}});
275 $self->protected_call($code);
281 return if !$self->{plugin
}; # unmanaged
284 # Create /fastboot to skip run fsck
285 $self->{plugin
}->ct_file_set_contents('/fastboot', '');
287 $self->{plugin
}->pre_start_hook($self->{conf
});
289 $self->protected_call($code);
292 sub post_create_hook
{
293 my ($self, $root_password, $ssh_keys) = @_;
295 return if !$self->{plugin
}; # unmanaged
298 $self->{plugin
}->post_create_hook($self->{conf
}, $root_password, $ssh_keys);
300 $self->protected_call($code);
301 $self->rewrite_ssh_host_keys();
305 # (...) a newline-separated list of environment-like shell-compatible
306 # variable assignments. (...) beyond mere variable assignments, no shell
307 # features are supported (this means variable expansion is explicitly not
308 # supported) (...). Variable assignment values must be enclosed in double or
309 # single quotes *if* they include spaces, semicolons or other special
310 # characters outside of A-Z, a-z, 0-9. Shell special characters ("$", quotes,
311 # backslash, backtick) must be escaped with backslashes (...). All strings
312 # should be in UTF-8 format, and non-printable characters should not be used.
313 # It is not supported to concatenate multiple individually quoted strings.
314 # Lines beginning with "#" shall be ignored as comments.
315 my $parse_os_release = sub {
318 while (defined($data) && $data =~ /^(.+)$/gm) {
319 next if $1 !~ /^\s*([a-zA-Z_][a-zA-Z0-9_]*)=(.*)$/;
320 my ($var, $content) = ($1, $2);
323 if ($content =~ /^'([^']*)'/) {
324 $variables->{$var} = $1;
325 } elsif ($content =~ /^"((?:[^"\\]|\\.)*)"/) {
327 $s =~ s/(\\["'`nt\$\\])/"\"$1\""/eeg;
328 $variables->{$var} = $s;
329 } elsif ($content =~ /^([A-Za-z0-9]*)/) {
330 $variables->{$var} = $1;
336 sub get_ct_os_release
{
340 if (-f
'/etc/os-release') {
341 return PVE
::Tools
::file_get_contents
('/etc/os-release');
342 } elsif (-f
'/usr/lib/os-release') {
343 return PVE
::Tools
::file_get_contents
('/usr/lib/os-release');
348 my $data = $self->protected_call($code);
350 return &$parse_os_release($data);