Merge pull request #131966 from ArctarusLimited/fix/containerd-restart

nixos/virtualisation/containerd: do not wipe runtime directory on restart or stop

nixos/modules/virtualisation/containerd.nix

···
 
         StateDirectory = "containerd";
         RuntimeDirectory = "containerd";
+        RuntimeDirectoryPreserve = "yes";
       };
       unitConfig = {
         StartLimitBurst = "16";