pyrox.dev
1# This test verifies that the amazon-init service can treat the `user-data` ec2
2# metadata file as a shell script. If amazon-init detects that `user-data` is a
3# script (based on the presence of the shebang #! line) it executes it and
4# exits.
5# Note that other tests verify that amazon-init can treat user-data as a nixos
6# configuration expression.
7
8{
9 lib,
10 ...
11}:
12
13{
14 name = "amazon-init";
15 meta = with lib.maintainers; {
16 maintainers = [ urbas ];
17 };
18 nodes.machine = {
19 imports = [
20 ../modules/profiles/headless.nix
21 ../modules/virtualisation/amazon-init.nix
22 ];
23 services.openssh.enable = true;
24 system.switch.enable = true;
25 networking.hostName = "";
26 environment.etc."ec2-metadata/user-data" = {
27 text = ''
28 #!/usr/bin/bash
29
30 echo successful > /tmp/evidence
31
32 # Emulate running nixos-rebuild switch, just without any building.
33 # https://github.com/nixos/nixpkgs/blob/4c62505847d88f16df11eff3c81bf9a453a4979e/nixos/modules/virtualisation/amazon-init.nix#L55
34 /run/current-system/bin/switch-to-configuration test
35 '';
36 };
37 };
38 testScript = ''
39 # To wait until amazon-init terminates its run
40 unnamed.wait_for_unit("amazon-init.service")
41
42 unnamed.succeed("grep -q successful /tmp/evidence")
43 '';
44}