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|
import ./make-test-python.nix ({ pkgs, ... }: {
name = "nixos-rebuild-target-host";
nodes = {
deployer = { lib, ... }: let
inherit (import ./ssh-keys.nix pkgs) snakeOilPrivateKey snakeOilPublicKey;
in {
imports = [ ../modules/profiles/installation-device.nix ];
nix.settings = {
substituters = lib.mkForce [ ];
hashed-mirrors = null;
connect-timeout = 1;
};
environment.systemPackages = [ pkgs.passh ];
system.includeBuildDependencies = true;
virtualisation = {
cores = 2;
memorySize = 2048;
};
system.build.privateKey = snakeOilPrivateKey;
system.build.publicKey = snakeOilPublicKey;
};
target = { nodes, lib, ... }: let
targetConfig = {
documentation.enable = false;
services.openssh.enable = true;
users.users.root.openssh.authorizedKeys.keys = [ nodes.deployer.system.build.publicKey ];
users.users.alice.openssh.authorizedKeys.keys = [ nodes.deployer.system.build.publicKey ];
users.users.bob.openssh.authorizedKeys.keys = [ nodes.deployer.system.build.publicKey ];
users.users.alice.extraGroups = [ "wheel" ];
users.users.bob.extraGroups = [ "wheel" ];
# Disable sudo for root to ensure sudo isn't called without `--use-remote-sudo`
security.sudo.extraRules = lib.mkForce [
{ groups = [ "wheel" ]; commands = [ { command = "ALL"; } ]; }
{ users = [ "alice" ]; commands = [ { command = "ALL"; options = [ "NOPASSWD" ]; } ]; }
];
nix.settings.trusted-users = [ "@wheel" ];
};
in {
imports = [ ./common/user-account.nix ];
config = lib.mkMerge [
targetConfig
{
system.build = {
inherit targetConfig;
};
networking.hostName = "target";
}
];
};
};
testScript = { nodes, ... }:
let
sshConfig = builtins.toFile "ssh.conf" ''
UserKnownHostsFile=/dev/null
StrictHostKeyChecking=no
'';
targetConfigJSON = pkgs.writeText "target-configuration.json"
(builtins.toJSON nodes.target.system.build.targetConfig);
targetNetworkJSON = pkgs.writeText "target-network.json"
(builtins.toJSON nodes.target.system.build.networkConfig);
configFile = hostname: pkgs.writeText "configuration.nix" ''
{ lib, modulesPath, ... }: {
imports = [
(modulesPath + "/virtualisation/qemu-vm.nix")
(modulesPath + "/testing/test-instrumentation.nix")
(modulesPath + "/../tests/common/user-account.nix")
(lib.modules.importJSON ./target-configuration.json)
(lib.modules.importJSON ./target-network.json)
./hardware-configuration.nix
];
boot.loader.grub = {
enable = true;
device = "/dev/vda";
forceInstall = true;
};
# this will be asserted
networking.hostName = "${hostname}";
}
'';
in
''
start_all()
target.wait_for_open_port(22)
deployer.wait_until_succeeds("ping -c1 target")
deployer.succeed("install -Dm 600 ${nodes.deployer.system.build.privateKey} ~root/.ssh/id_ecdsa")
deployer.succeed("install ${sshConfig} ~root/.ssh/config")
target.succeed("nixos-generate-config")
deployer.succeed("scp alice@target:/etc/nixos/hardware-configuration.nix /root/hardware-configuration.nix")
deployer.copy_from_host("${configFile "config-1-deployed"}", "/root/configuration-1.nix")
deployer.copy_from_host("${configFile "config-2-deployed"}", "/root/configuration-2.nix")
deployer.copy_from_host("${configFile "config-3-deployed"}", "/root/configuration-3.nix")
deployer.copy_from_host("${targetNetworkJSON}", "/root/target-network.json")
deployer.copy_from_host("${targetConfigJSON}", "/root/target-configuration.json")
# Ensure sudo is disabled for root
target.fail("sudo true")
# This test also ensures that sudo is not called without --use-remote-sudo
with subtest("Deploy to root@target"):
deployer.succeed("nixos-rebuild switch -I nixos-config=/root/configuration-1.nix --target-host root@target &>/dev/console")
target_hostname = deployer.succeed("ssh alice@target cat /etc/hostname").rstrip()
assert target_hostname == "config-1-deployed", f"{target_hostname=}"
with subtest("Deploy to alice@target with passwordless sudo"):
deployer.succeed("nixos-rebuild switch -I nixos-config=/root/configuration-2.nix --target-host alice@target --use-remote-sudo &>/dev/console")
target_hostname = deployer.succeed("ssh alice@target cat /etc/hostname").rstrip()
assert target_hostname == "config-2-deployed", f"{target_hostname=}"
with subtest("Deploy to bob@target with password based sudo"):
deployer.succeed("passh -c 3 -C -p ${nodes.target.users.users.bob.password} -P \"\[sudo\] password\" nixos-rebuild switch -I nixos-config=/root/configuration-3.nix --target-host bob@target --use-remote-sudo &>/dev/console")
target_hostname = deployer.succeed("ssh alice@target cat /etc/hostname").rstrip()
assert target_hostname == "config-3-deployed", f"{target_hostname=}"
with subtest("Deploy works with very long TMPDIR"):
tmp_dir = "/var/folder/veryveryveryveryverylongpathnamethatdoesnotworkwithcontrolpath"
deployer.succeed(f"mkdir -p {tmp_dir}")
deployer.succeed(f"TMPDIR={tmp_dir} nixos-rebuild switch -I nixos-config=/root/configuration-1.nix --target-host root@target &>/dev/console")
'';
})
|