From b6c589b2da2b46aed1dc2950ffae07437606bbff Mon Sep 17 00:00:00 2001
From: Dan Peebles <pumpkin@me.com>
Date: Wed, 27 May 2015 06:12:26 +0000
Subject: [PATCH] Simple EC2 user-data VM test
---
nixos/lib/test-driver/Machine.pm | 2 -
.../scripts/ec2/amazon-base-config.nix | 2 +-
nixos/release.nix | 1 +
nixos/tests/ec2.nix | 96 +++++++++++++++++++
4 files changed, 98 insertions(+), 3 deletions(-)
create mode 100644 nixos/tests/ec2.nix
diff --git a/nixos/lib/test-driver/Machine.pm b/nixos/lib/test-driver/Machine.pm
index 6df8ddb9e95..41088ed75f7 100644
--- a/nixos/lib/test-driver/Machine.pm
+++ b/nixos/lib/test-driver/Machine.pm
@@ -43,8 +43,6 @@ sub new {
$startCommand .= "-bios $args->{bios} "
if defined $args->{bios};
$startCommand .= $args->{qemuFlags} || "";
- } else {
- $startCommand = Cwd::abs_path $startCommand;
}
my $tmpDir = $ENV{'TMPDIR'} || "/tmp";
diff --git a/nixos/maintainers/scripts/ec2/amazon-base-config.nix b/nixos/maintainers/scripts/ec2/amazon-base-config.nix
index d23f15e828b..097d722554c 100644
--- a/nixos/maintainers/scripts/ec2/amazon-base-config.nix
+++ b/nixos/maintainers/scripts/ec2/amazon-base-config.nix
@@ -1,5 +1,5 @@
{ modulesPath, ...}:
{
- imports = [ "${modulesPath}/virtualisation/amazon-config.nix" ];
+ imports = [ "${modulesPath}/virtualisation/amazon-image.nix" ];
services.journald.rateLimitBurst = 0;
}
diff --git a/nixos/release.nix b/nixos/release.nix
index 51a58da4454..103bf9b2c5b 100644
--- a/nixos/release.nix
+++ b/nixos/release.nix
@@ -247,6 +247,7 @@ in rec {
tests.docker = hydraJob (import tests/docker.nix { system = "x86_64-linux"; });
tests.dockerRegistry = hydraJob (import tests/docker-registry.nix { system = "x86_64-linux"; });
tests.etcd = hydraJob (import tests/etcd.nix { system = "x86_64-linux"; });
+ tests.ec2 = hydraJob (import tests/ec2.nix { system = "x86_64-linux"; }).bootEc2NixOps;
tests.firefox = callTest tests/firefox.nix {};
tests.firewall = callTest tests/firewall.nix {};
tests.fleet = hydraJob (import tests/fleet.nix { system = "x86_64-linux"; });
diff --git a/nixos/tests/ec2.nix b/nixos/tests/ec2.nix
new file mode 100644
index 00000000000..7ea9b3d07f7
--- /dev/null
+++ b/nixos/tests/ec2.nix
@@ -0,0 +1,96 @@
+{ system ? builtins.currentSystem }:
+
+with import ../lib/testing.nix { inherit system; };
+with import ../lib/qemu-flags.nix;
+with pkgs.lib;
+
+let
+ image =
+ (import ../lib/eval-config.nix {
+ inherit system;
+ modules = [
+ ../maintainers/scripts/ec2/amazon-hvm-config.nix
+ ../../nixos/modules/testing/test-instrumentation.nix
+ { boot.initrd.kernelModules = [ "virtio" "virtio_blk" "virtio_pci" "virtio_ring" ]; }
+ ];
+ }).config.system.build.amazonImage;
+
+ makeEc2Test = { name, userData, script, hostname ? "ec2-instance", sshPublicKey ? null }:
+ let
+ metaData = pkgs.stdenv.mkDerivation {
+ name = "metadata";
+ buildCommand = ''
+ mkdir -p $out/2011-01-01
+ ln -s ${pkgs.writeText "userData" userData} $out/2011-01-01/user-data
+ mkdir -p $out/1.0/meta-data
+ echo "${hostname}" > $out/1.0/meta-data/hostname
+ '' + optionalString (sshPublicKey != null) ''
+ mkdir -p $out/1.0/meta-data/public-keys/0
+ ln -s ${pkgs.writeText "sshPublicKey" sshPublicKey} $out/1.0/meta-data/public-keys/0/openssh-key
+ '';
+ };
+ in makeTest {
+ name = "ec2-" + name;
+ nodes = {};
+ testScript =
+ ''
+ use File::Temp qw/ tempfile /;
+ my ($fh, $filename) = tempfile();
+
+ `qemu-img create -f qcow2 -o backing_file=${image}/nixos.img $filename`;
+
+ my $startCommand = "qemu-kvm -m 768 -net nic -net 'user,net=169.254.0.0/16,guestfwd=tcp:169.254.169.254:80-cmd:${pkgs.micro-httpd}/bin/micro_httpd ${metaData}'";
+ $startCommand .= " -drive file=" . Cwd::abs_path($filename) . ",if=virtio,werror=report";
+ $startCommand .= " \$QEMU_OPTS";
+
+ my $machine = createMachine({ startCommand => $startCommand });
+ ${script}
+ '';
+ };
+
+ snakeOilPrivateKey = [
+ "-----BEGIN EC PRIVATE KEY-----"
+ "MHcCAQEEIHQf/khLvYrQ8IOika5yqtWvI0oquHlpRLTZiJy5dRJmoAoGCCqGSM49"
+ "AwEHoUQDQgAEKF0DYGbBwbj06tA3fd/+yP44cvmwmHBWXZCKbS+RQlAKvLXMWkpN"
+ "r1lwMyJZoSGgBHoUahoYjTh9/sJL7XLJtA=="
+ "-----END EC PRIVATE KEY-----"
+ ];
+
+ snakeOilPublicKey = pkgs.lib.concatStrings [
+ "ecdsa-sha2-nistp256 AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHA"
+ "yNTYAAABBBChdA2BmwcG49OrQN33f/sj+OHL5sJhwVl2Qim0vkUJQCry1zFpKTa"
+ "9ZcDMiWaEhoAR6FGoaGI04ff7CS+1yybQ= snakeoil"
+ ];
+in {
+ bootEc2NixOps = makeEc2Test {
+ name = "nixops-userdata";
+ sshPublicKey = snakeOilPublicKey; # That's right folks! My user's key is also the host key!
+
+ userData = ''
+ SSH_HOST_DSA_KEY_PUB:${snakeOilPublicKey}
+ SSH_HOST_DSA_KEY:${pkgs.lib.concatStringsSep "|" snakeOilPrivateKey}
+ '';
+ script = ''
+ $machine->start;
+ $machine->waitForFile("/root/user-data");
+ $machine->waitForUnit("sshd.service");
+
+ # We have no keys configured on the client side yet, so this should fail
+ $machine->fail("ssh -o BatchMode=yes localhost exit");
+
+ # Let's install our client private key
+ $machine->succeed("mkdir -p ~/.ssh");
+ ${concatMapStrings (s: "$machine->succeed('echo ${s} >> ~/.ssh/id_ecdsa');") snakeOilPrivateKey}
+ $machine->succeed("chmod 600 ~/.ssh/id_ecdsa");
+
+ # We haven't configured the host key yet, so this should still fail
+ $machine->fail("ssh -o BatchMode=yes localhost exit");
+
+ # Add the host key; ssh should finally succeed
+ $machine->succeed("echo localhost,127.0.0.1 ${snakeOilPublicKey} > ~/.ssh/known_hosts");
+ $machine->succeed("ssh -o BatchMode=yes localhost exit");
+
+ $machine->shutdown;
+ '';
+ };
+}