--- pve-container/src/PVE/LXC/Config.pm.altlinux-lxc	2021-09-27 08:46:45.403297787 +0000
+++ pve-container/src/PVE/LXC/Config.pm	2021-09-27 08:48:45.053716328 +0000
@@ -445,7 +445,7 @@ my $confdesc = {
     ostype => {
 	optional => 1,
 	type => 'string',
-	enum => [qw(debian devuan ubuntu centos fedora opensuse archlinux alpine gentoo unmanaged)],
+	enum => [qw(debian devuan ubuntu centos fedora opensuse archlinux alpine gentoo altlinux unmanaged)],
 	description => "OS type. This is used to setup configuration inside the container, and corresponds to lxc setup scripts in /usr/share/lxc/config/<ostype>.common.conf. Value 'unmanaged' can be used to skip and OS specific setup.",
     },
     console => {
--- pve-container/src/PVE/LXC/Setup.pm.altlinux-lxc	2021-08-05 14:12:00.000000000 +0000
+++ pve-container/src/PVE/LXC/Setup.pm	2021-09-27 08:46:45.403297787 +0000
@@ -16,6 +16,7 @@ use PVE::LXC::Setup::ArchLinux;
 use PVE::LXC::Setup::Alpine;
 use PVE::LXC::Setup::Gentoo;
 use PVE::LXC::Setup::Devuan;
+use PVE::LXC::Setup::ALTLinux;
 
 my $plugins = {
     debian    => 'PVE::LXC::Setup::Debian',
@@ -27,6 +28,7 @@ my $plugins = {
     archlinux => 'PVE::LXC::Setup::ArchLinux',
     alpine    => 'PVE::LXC::Setup::Alpine',
     gentoo    => 'PVE::LXC::Setup::Gentoo',
+    altlinux  => 'PVE::LXC::Setup::ALTLinux',
 };
 
 # a map to allow supporting related distro flavours
@@ -62,6 +64,8 @@ my $autodetect_type = sub {
 	return "devuan";
     } elsif (-f  "$rootdir/etc/SuSE-brand" || -f "$rootdir/etc/SuSE-release") {
 	return "opensuse";
+    } elsif (-f "$rootdir/etc/altlinux-release") {
+	return "altlinux";
     } elsif (-f  "$rootdir/etc/fedora-release") {
 	return "fedora";
     } elsif (-f  "$rootdir/etc/centos-release" || -f "$rootdir/etc/redhat-release") {
@@ -257,7 +261,12 @@ sub rewrite_ssh_host_keys {
     my $plugin = $self->{plugin};
     my $rootdir = $self->{rootdir};
 
-    return if ! -d "$rootdir/etc/ssh";
+    my $sshdir = "/etc/ssh";
+    if ( ! -d "$rootdir$sshdir" ) {
+	if ( ! -d "$rootdir/etc/openssh" ) {
+	    return;
+	} $sshdir = "/etc/openssh";
+    }
 
     my $keynames = {
 	rsa => 'ssh_host_rsa_key',
@@ -287,8 +296,8 @@ sub rewrite_ssh_host_keys {
 	my $cmd = ['ssh-keygen', '-f', $file, '-t', $keytype,
 		   '-N', '', '-E', 'sha256', '-C', $ssh_comment];
 	PVE::Tools::run_command($cmd, outfunc => $keygen_outfunc);
-	$keyfiles->{"/etc/ssh/$basename"} = [PVE::Tools::file_get_contents($file), 0600];
-	$keyfiles->{"/etc/ssh/$basename.pub"} = [PVE::Tools::file_get_contents("$file.pub"), 0644];
+	$keyfiles->{"$sshdir/$basename"} = [PVE::Tools::file_get_contents($file), 0600];
+	$keyfiles->{"$sshdir/$basename.pub"} = [PVE::Tools::file_get_contents("$file.pub"), 0644];
 	unlink $file;
 	unlink "$file.pub";
     }
--- pve-container/src/PVE/LXC/Setup/ALTLinux.pm.altlinux-lxc	2021-09-27 08:46:45.403297787 +0000
+++ pve-container/src/PVE/LXC/Setup/ALTLinux.pm	2021-09-27 08:46:45.403297787 +0000
@@ -0,0 +1,60 @@
+package PVE::LXC::Setup::ALTLinux;
+
+use strict;
+use warnings;
+use Digest::SHA;
+use Crypt::Eksblowfish::Bcrypt;
+use PVE::LXC::Setup::Base;
+use base qw(PVE::LXC::Setup::Base);
+
+sub new {
+	my ($class, $conf, $rootdir) = @_;
+	my $ostype = "altlinux";
+	my $version = PVE::Tools::file_read_firstline("$rootdir/etc/$ostype-release");
+	my $self = { conf => $conf, rootdir => $rootdir, version => $version };
+	$conf->{ostype} = $ostype;
+	return bless $self, $class;
+}
+
+sub setup_init {
+    my ($self, $conf) = @_;
+
+    $self->fixup_old_getty();
+
+    $self->setup_container_getty_service($conf);
+}
+
+sub setup_network {
+    my ($self, $conf) = @_;
+    $self->setup_systemd_networkd($conf);
+}
+
+sub template_fixup {
+    my ($self, $conf) = @_;
+    $self->setup_securetty($conf, qw(pts/0 console lxc/console lxc/tty1 lxc/tty2));
+}
+
+sub set_user_password {
+    my ($self, $conf, $user, $opt_password) = @_;
+
+    my $shadowfile = "/etc/tcb/$user/shadow";
+    return if !$self->ct_file_exists($shadowfile);
+
+    if (defined($opt_password)) {
+	if ($opt_password !~ m/^\$/) {
+	    my $salt = Crypt::Eksblowfish::Bcrypt::en_base64(substr(Digest::SHA::sha1_base64(time), 0, 16));
+	    $opt_password = Crypt::Eksblowfish::Bcrypt::bcrypt($opt_password, '$2a$08$'.$salt);
+	};
+    } else {
+	$opt_password = '*';
+    }
+
+    my $data = $user . ":" . $opt_password . ":" . (int(time()/86400)) . "::::::\n";
+
+    my $st = $self->ct_stat($shadowfile) || die "unable to stat file - $!";
+    $self->ct_file_set_contents($shadowfile, $data);
+    chmod $st->mode, $shadowfile;
+    chown $st->uid, $st->gid, $shadowfile;
+}
+
+1;
--- pve-container/src/PVE/LXC/Setup/Makefile.altlinux-lxc	2021-08-05 14:12:00.000000000 +0000
+++ pve-container/src/PVE/LXC/Setup/Makefile	2021-09-27 08:46:45.403297787 +0000
@@ -1,4 +1,4 @@
-SOURCES=Base.pm Debian.pm Ubuntu.pm CentOS.pm Fedora.pm SUSE.pm ArchLinux.pm Alpine.pm Gentoo.pm Devuan.pm
+SOURCES=Base.pm Debian.pm Ubuntu.pm CentOS.pm Fedora.pm SUSE.pm ArchLinux.pm Alpine.pm Gentoo.pm Devuan.pm ALTLinux.pm
 
 .PHONY: install
 install: