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nixosTests.systemd-ssh-proxy: init

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Marie Ramlow 2024-09-18 16:01:09 +02:00
parent 0ea1aedc4d
commit 8a641ddffe
2 changed files with 77 additions and 0 deletions
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1
nixos/tests/all-tests.nix
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@ -1067,6 +1067,7 @@ in {
systemd-portabled = handleTest ./systemd-portabled.nix {}; systemd-portabled = handleTest ./systemd-portabled.nix {};
systemd-repart = handleTest ./systemd-repart.nix {}; systemd-repart = handleTest ./systemd-repart.nix {};
systemd-resolved = handleTest ./systemd-resolved.nix {}; systemd-resolved = handleTest ./systemd-resolved.nix {};
systemd-ssh-proxy = runTest ./systemd-ssh-proxy.nix;
systemd-shutdown = handleTest ./systemd-shutdown.nix {}; systemd-shutdown = handleTest ./systemd-shutdown.nix {};
systemd-sysupdate = runTest ./systemd-sysupdate.nix; systemd-sysupdate = runTest ./systemd-sysupdate.nix;
systemd-sysusers-mutable = runTest ./systemd-sysusers-mutable.nix; systemd-sysusers-mutable = runTest ./systemd-sysusers-mutable.nix;

76
nixos/tests/systemd-ssh-proxy.nix Normal file
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@ -0,0 +1,76 @@
{
pkgs,
lib,
config,
...
}:
# This tests that systemd-ssh-proxy and systemd-ssh-generator work correctly with:
# - a local unix socket on the same system
# - a vsock socket inside a vm
let
inherit (import ./ssh-keys.nix pkgs)
snakeOilEd25519PrivateKey
snakeOilEd25519PublicKey
;
qemu = config.nodes.virthost.virtualisation.qemu.package;
iso =
(import ../lib/eval-config.nix {
inherit (pkgs.stdenv.hostPlatform) system;
modules = [
../modules/installer/cd-dvd/iso-image.nix
{
services.openssh = {
enable = true;
settings.PermitRootLogin = "prohibit-password";
};
isoImage.isoBaseName = lib.mkForce "nixos";
isoImage.makeBiosBootable = true;
system.stateVersion = lib.trivial.release;
}
];
}).config.system.build.isoImage;
in
{
name = "systemd-ssh-proxy";
meta.maintainers = with pkgs.lib.maintainers; [ marie ];
nodes = {
virthost = {
services.openssh = {
enable = true;
settings.PermitRootLogin = "prohibit-password";
};
users.users = {
root.openssh.authorizedKeys.keys = [ snakeOilEd25519PublicKey ];
nixos = {
isNormalUser = true;
};
};
systemd.services.test-vm = {
script = "${lib.getExe qemu} --nographic -smp 1 -m 512 -cdrom ${iso}/iso/nixos.iso -device vhost-vsock-pci,guest-cid=3 -smbios type=11,value=\"io.systemd.credential:ssh.authorized_keys.root=${snakeOilEd25519PublicKey}\"";
};
};
};
testScript = ''
virthost.systemctl("start test-vm.service")
virthost.succeed("mkdir -p ~/.ssh")
virthost.succeed("cp '${snakeOilEd25519PrivateKey}' ~/.ssh/id_ed25519")
virthost.succeed("chmod 600 ~/.ssh/id_ed25519")
with subtest("ssh into a vm with vsock"):
virthost.wait_until_succeeds("systemctl is-active test-vm.service")
virthost.wait_until_succeeds("ssh -i ~/.ssh/id_ed25519 vsock/3 echo meow | grep meow")
virthost.wait_until_succeeds("ssh -i ~/.ssh/id_ed25519 vsock/3 shutdown now")
virthost.wait_until_succeeds("! systemctl is-active test-vm.service")
with subtest("elevate permissions using local ssh socket"):
virthost.wait_for_unit("sshd-unix-local.socket")
virthost.succeed("sudo --user=nixos mkdir -p /home/nixos/.ssh")
virthost.succeed("cp ~/.ssh/id_ed25519 /home/nixos/.ssh/id_ed25519")
virthost.succeed("chmod 600 /home/nixos/.ssh/id_ed25519")
virthost.succeed("chown nixos /home/nixos/.ssh/id_ed25519")
virthost.succeed("sudo --user=nixos ssh -o StrictHostKeyChecking=no -o IdentitiesOnly=yes -i /home/nixos/.ssh/id_ed25519 root@.host whoami | grep root")
'';
}