nixos/kernel: replace boot.isContainer with boot.kernel.enable

[SuperSandro2000]

Description of changes

Things done

• Built on platform(s)
  • x86_64-linux
  • aarch64-linux
  • x86_64-darwin
  • aarch64-darwin
• For non-Linux: Is sandbox = true set in nix.conf? (See Nix manual)
• Tested, as applicable:
  • NixOS test(s) (look inside nixos/tests)
  • and/or package tests
  • or, for functions and "core" functionality, tests in lib/tests or pkgs/test
  • made sure NixOS tests are linked to the relevant packages
• Tested compilation of all packages that depend on this change using nix-shell -p nixpkgs-review --run "nixpkgs-review rev HEAD". Note: all changes have to be committed, also see nixpkgs-review usage
• Tested basic functionality of all binary files (usually in ./result/bin/)
• 22.11 Release Notes (or backporting 22.05 Release notes)
  • (Package updates) Added a release notes entry if the change is major or breaking
  • (Module updates) Added a release notes entry if the change is significant
  • (Module addition) Added a release notes entry if adding a new NixOS module
  • (Release notes changes) Ran nixos/doc/manual/md-to-db.sh to update generated release notes
• Fits CONTRIBUTING.md.

[ncfavier]

There might be more places where !config.boot.isContainer should be replaced with config.boot.kernel.enable. Can't really say without knowing what use case you have in mind.

[SuperSandro2000]

There might be more places where !config.boot.isContainer should be replaced with config.boot.kernel.enable.

Do you have some in mind? I think I got all of them that are relevant for my usecase.

Can't really say without knowing what use case you have in mind.

NixOS-WSL, see https://github.com/nix-community/NixOS-WSL/blob/a4bbcf329a98a7faf79d10370278f87e836e1d7c/modules/wsl-distro.nix#L102-L105