From: Wolfgang Bumiller <w.bumiller@proxmox.com>
Date: Thu, 12 Nov 2015 13:00:28 +0000 (+0100)
Subject: vzdump: userns support
X-Git-Url: https://git.proxmox.com/?a=commitdiff_plain;h=01dce99b82314690a92952b5e4128735a944a3ce;p=pve-container.git

vzdump: userns support
---

diff --git a/src/PVE/LXC.pm b/src/PVE/LXC.pm
index 07ac4fc..ccab284 100644
--- a/src/PVE/LXC.pm
+++ b/src/PVE/LXC.pm
@@ -2411,4 +2411,12 @@ sub parse_id_maps {
     return ($id_map, $rootuid, $rootgid);
 }
 
+sub userns_command {
+    my ($id_map) = @_;
+    if (@$id_map) {
+	return ['lxc-usernsexec', (map { ('-m', join(':', @$_)) } @$id_map), '--'];
+    }
+    return [];
+}
+
 1;
diff --git a/src/PVE/LXC/Create.pm b/src/PVE/LXC/Create.pm
index cb9c85a..b146ea7 100644
--- a/src/PVE/LXC/Create.pm
+++ b/src/PVE/LXC/Create.pm
@@ -25,11 +25,9 @@ sub next_free_nbd_dev {
 sub restore_archive {
     my ($archive, $rootdir, $conf) = @_;
 
-    my $userns_cmd = [];
-
     my ($id_map, $rootuid, $rootgid) = PVE::LXC::parse_id_maps($conf);
+    my $userns_cmd = PVE::LXC::userns_command($id_map);
     if (@$id_map) {
-	$userns_cmd = ['lxc-usernsexec', (map { ('-m', join(':', @$_)) } @$id_map), '--'];
 	PVE::Tools::run_command(['chown', '-R', "$rootuid:$rootgid", $rootdir]);
     }
 
diff --git a/src/PVE/VZDump/LXC.pm b/src/PVE/VZDump/LXC.pm
index f138588..72ad9c0 100644
--- a/src/PVE/VZDump/LXC.pm
+++ b/src/PVE/VZDump/LXC.pm
@@ -105,6 +105,9 @@ sub prepare {
 
     $task->{hostname} = $conf->{'hostname'} || "CT$vmid";
 
+    my ($id_map, $rootuid, $rootgid) = PVE::LXC::parse_id_maps($conf);
+    $task->{userns_cmd} = PVE::LXC::userns_command($id_map);
+
     PVE::LXC::foreach_mountpoint($conf, sub {
 	my ($name, $data) = @_;
 	my $volid = $data->{volume};
@@ -278,7 +281,8 @@ sub archive {
     my $snapdir = $task->{snapdir};
     my $tmpdir = $task->{tmpdir};
 
-    my $tar = ['tar', 'cpf', '-', '--totals',
+    my $userns_cmd = $task->{userns_cmd};
+    my $tar = [@$userns_cmd, 'tar', 'cpf', '-', '--totals',
                @$PVE::LXC::COMMON_TAR_FLAGS,
                '--one-file-system', '--warning=no-file-ignored'];