nixos-images/nix/kexec-installer-test.nix

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2022-09-04 14:57:14 +02:00
{ pkgs ? import <nixpkgs> {} }:
let
makeTest = import (pkgs.path + "/nixos/tests/make-test-python.nix");
makeTest' = args: makeTest args {
inherit pkgs;
inherit (pkgs) system;
};
in makeTest' {
name = "kexec-installer";
meta = with pkgs.lib.maintainers; {
maintainers = [ mic92 ];
};
nodes = {
node1 = { ... }: {
virtualisation.vlans = [ ];
virtualisation.memorySize = 4 * 1024;
virtualisation.diskSize = 4 * 1024;
virtualisation.useBootLoader = true;
virtualisation.useEFIBoot = true;
boot.loader.systemd-boot.enable = true;
boot.loader.efi.canTouchEfiVariables = true;
services.openssh.enable = true;
};
node2 = { pkgs, modulesPath, ... }: {
virtualisation.vlans = [ ];
environment.systemPackages = [ pkgs.hello ];
imports = [
./kexec-installer.nix
];
};
};
testScript = { nodes, ... }: ''
# Test whether reboot via kexec works.
node1.wait_for_unit("multi-user.target")
node1.succeed('kexec --load /run/current-system/kernel --initrd /run/current-system/initrd --command-line "$(</proc/cmdline)"')
node1.execute("systemctl kexec >&2 &", check_return=False)
node1.connected = False
node1.connect()
node1.wait_for_unit("multi-user.target")
# Check if the machine with netboot-minimal.nix profile boots up
node2.wait_for_unit("multi-user.target")
node2.shutdown()
node1.wait_for_unit("sshd.service")
host_ed25519_before = node1.succeed("cat /etc/ssh/ssh_host_ed25519_key.pub")
node1.succeed('ssh-keygen -t ed25519 -f /root/.ssh/id_ed25519 -q -N ""')
root_ed25519_before = node1.succeed('tee /root/.ssh/authorized_keys < /root/.ssh/id_ed25519.pub')
# Kexec node1 to the toplevel of node2 via the kexec-boot script
node1.succeed('touch /run/foo')
node1.fail('hello')
node1.succeed('mkdir -p /root/kexec')
node1.succeed('mkdir -p /root/kexec')
node1.succeed('tar -xf ${nodes.node2.config.system.build.kexecTarball}/tarball/nixos-kexec-installer-${pkgs.system}.tar.xz -C /root/kexec')
node1.execute('/root/kexec/kexec-boot')
# wait for machine to kexec
node1.execute('sleep 9999', check_return=False)
node1.succeed('! test -e /run/foo')
node1.succeed('hello')
node1.succeed('[ "$(hostname)" = "node2" ]')
node1.wait_for_unit("sshd.service")
host_ed25519_after = node1.succeed("cat /etc/ssh/ssh_host_ed25519_key.pub")
assert host_ed25519_before == host_ed25519_after, f"{host_ed25519_before} != {host_ed25519_after}"
root_ed25519_after = node1.succeed("cat /root/.ssh/authorized_keys")
assert root_ed25519_before == root_ed25519_after, f"{root_ed25519_before} != {root_ed25519_after}"
node1.shutdown()
'';
}