[pve-devel] [PATCH container] fix #3443: setup: clear /etc/machine-id in post-create hook

[Oguz Bektas <o.bektas@proxmox.com>]

this way when new containers are created the will have a unique
/etc/machine-id

note that post_create_hook doesn't run for cloned containers so that
will need to be handled separately


Signed-off-by: Oguz Bektas <o.bektas@proxmox.com>
---
 src/PVE/LXC/Setup/Base.pm | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/src/PVE/LXC/Setup/Base.pm b/src/PVE/LXC/Setup/Base.pm
index be41874..75a7f74 100644
--- a/src/PVE/LXC/Setup/Base.pm
+++ b/src/PVE/LXC/Setup/Base.pm
@@ -476,6 +476,18 @@ sub set_timezone {
     }
 }
 
+sub clear_machine_id {
+    my ($self, $conf) = @_;
+
+    my $dbus_machine_id_path = "/var/lib/dbus/machine-id";
+    my $machine_id_path = "/etc/machine-id";
+    if ($self->ct_file_exists($dbus_machine_id_path)) {
+        $self->ct_unlink($dbus_machine_id_path);
+    }
+    $self->ct_unlink($machine_id_path);
+    $self->ct_file_set_contents($machine_id_path, "uninitialized\n");
+}
+
 sub pre_start_hook {
     my ($self, $conf) = @_;
 
@@ -491,6 +503,7 @@ sub pre_start_hook {
 sub post_create_hook {
     my ($self, $conf, $root_password, $ssh_keys) = @_;
 
+    $self->clear_machine_id($conf);
     $self->template_fixup($conf);
 
     $self->randomize_crontab($conf);
-- 
2.20.1