[pve-devel] [PATCH container] fix: cloning a locked container creates an empty config

Fabian Grünbichler f.gruenbichler at proxmox.com
Tue Jun 14 14:51:33 CEST 2022


On June 14, 2022 2:22 pm, Daniel Tschlatscher wrote:
> When an attempt was made to clone a locked container the API would
> correctly present the error 'CT is locked (disk)' but create the
> config files for the new container anyway and then abort.
> 
> The fix is to simply check whether the CT config is locked before
> creating the configs for the new container.

is there a reason for not just moving it to the start of the eval block 
to avoid the same problem being re-introduced in the future? any error 
occuring inside the eval block will then trigger a cleanup..

> 
> Signed-off-by: Daniel Tschlatscher <d.tschlatscher at proxmox.com>
> ---
>  src/PVE/API2/LXC.pm | 6 +++---
>  1 file changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/src/PVE/API2/LXC.pm b/src/PVE/API2/LXC.pm
> index 64724cb..e1b4cd3 100644
> --- a/src/PVE/API2/LXC.pm
> +++ b/src/PVE/API2/LXC.pm
> @@ -1461,9 +1461,6 @@ __PACKAGE__->register_method({
>  	my $vollist = [];
>  	my $running;
>  
> -	PVE::LXC::Config->create_and_lock_config($newid, 0);
> -	PVE::Firewall::clone_vmfw_conf($vmid, $newid);
> -
>  	my $lock_and_reload = sub {
>  	    my ($vmid, $code) = @_;
>  	    return PVE::LXC::Config->lock_config($vmid, sub {
> @@ -1477,6 +1474,9 @@ __PACKAGE__->register_method({
>  
>  	my $src_conf = PVE::LXC::Config->set_lock($vmid, 'disk');
>  
> +	PVE::LXC::Config->create_and_lock_config($newid, 0);
> +	PVE::Firewall::clone_vmfw_conf($vmid, $newid);
> +
>  	$running = PVE::LXC::check_running($vmid) || 0;
>  
>  	my $full = extract_param($param, 'full');
> -- 
> 2.30.2
> 
> 
> 
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