[pve-devel] [PATCH container] fix creating unmanaged containers

Oguz Bektas o.bektas at proxmox.com
Mon Oct 4 16:55:14 CEST 2021

$keynames was not a hash reference since nothing was returned by
ssh_host_key_types_to_generate for unmanaged containers, this causes the
post_create_hook to fail and no container is created.

fix by returning an empty hash so that $keynames can be a hashref and
processed accordingly.

also dropped a remaining unmanaged return (should have no effect anymore
anyways, since $self->{plugin} is now set to 'unmanaged' instead of


note that we can still allow generating ssh keys for unmanaged
containers, i have another patch like that (i can send if you wish),
which doesn't skip creating ssh keys -- however for that to work we need
to use functions from PVE::Tools (so that we can have ct_file_exists and

 src/PVE/LXC/Setup.pm           | 2 --
 src/PVE/LXC/Setup/Unmanaged.pm | 1 +
 2 files changed, 1 insertion(+), 2 deletions(-)

diff --git a/src/PVE/LXC/Setup.pm b/src/PVE/LXC/Setup.pm
index cfbe02c..4e211ef 100644
--- a/src/PVE/LXC/Setup.pm
+++ b/src/PVE/LXC/Setup.pm
@@ -228,8 +228,6 @@ my sub generate_ssh_key { # create temporary key in hosts' /run, then read and u
 sub rewrite_ssh_host_keys {
     my ($self) = @_;
-    return if !$self->{plugin}; # unmanaged
     my $plugin = $self->{plugin};
     my $keynames = $plugin->ssh_host_key_types_to_generate();
diff --git a/src/PVE/LXC/Setup/Unmanaged.pm b/src/PVE/LXC/Setup/Unmanaged.pm
index 38e245f..2ca2898 100644
--- a/src/PVE/LXC/Setup/Unmanaged.pm
+++ b/src/PVE/LXC/Setup/Unmanaged.pm
@@ -51,6 +51,7 @@ sub unified_cgroupv2_support {
 sub ssh_host_key_types_to_generate {
     my ($self) = @_;
+    return {};
 # hooks

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