diff options
Diffstat (limited to 'nixos/modules/virtualisation/nixos-containers.nix')
| -rw-r--r-- | nixos/modules/virtualisation/nixos-containers.nix | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/nixos/modules/virtualisation/nixos-containers.nix b/nixos/modules/virtualisation/nixos-containers.nix index f06977f88fc..3754fe6dac6 100644 --- a/nixos/modules/virtualisation/nixos-containers.nix +++ b/nixos/modules/virtualisation/nixos-containers.nix @@ -271,8 +271,8 @@ let DeviceAllow = map (d: "${d.node} ${d.modifier}") cfg.allowedDevices; }; - system = config.nixpkgs.localSystem.system; + kernelVersion = config.boot.kernelPackages.kernel.version; bindMountOpts = { name, ... }: { @@ -321,7 +321,6 @@ let }; }; - mkBindFlag = d: let flagPrefix = if d.isReadOnly then " --bind-ro=" else " --bind="; mountstr = if d.hostPath != null then "${d.hostPath}:${d.mountPoint}" else "${d.mountPoint}"; @@ -482,11 +481,16 @@ in networking.useDHCP = false; assertions = [ { - assertion = config.privateNetwork -> stringLength name < 12; + assertion = + (builtins.compareVersions kernelVersion "5.8" <= 0) + -> config.privateNetwork + -> stringLength name <= 11; message = '' Container name `${name}` is too long: When `privateNetwork` is enabled, container names can not be longer than 11 characters, because the container's interface name is derived from it. - This might be fixed in the future. See https://github.com/NixOS/nixpkgs/issues/38509 + You should either make the container name shorter or upgrade to a more recent kernel that + supports interface altnames (i.e. at least Linux 5.8 - please see https://github.com/NixOS/nixpkgs/issues/38509 + for details). ''; } ]; |