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2858b35100
The Openstack metadata service exposes the EC2 API. We use the existing `ec2.nix` module to configure the hostname and ssh keys of an Openstack Instance. A test checks the ssh server is well configured. This is mainly to reduce the size of the image (700MB). Also, declarative features provided by cloud-init are not really useful since we would prefer to use our `configuration.nix` file instead.
126 lines
4.1 KiB
Nix
126 lines
4.1 KiB
Nix
{ system ? builtins.currentSystem,
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config ? {},
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pkgs ? import ../.. { inherit system config; }
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}:
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with import ../lib/testing.nix { inherit system pkgs; };
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with pkgs.lib;
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with import common/ec2.nix { inherit makeTest pkgs; };
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let
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image =
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(import ../lib/eval-config.nix {
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inherit system;
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modules = [
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../maintainers/scripts/ec2/amazon-image.nix
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../modules/testing/test-instrumentation.nix
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../modules/profiles/qemu-guest.nix
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{ ec2.hvm = true;
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# Hack to make the partition resizing work in QEMU.
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boot.initrd.postDeviceCommands = mkBefore
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''
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ln -s vda /dev/xvda
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ln -s vda1 /dev/xvda1
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'';
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# Needed by nixos-rebuild due to the lack of network
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# access. Mostly copied from
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# modules/profiles/installation-device.nix.
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system.extraDependencies =
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with pkgs; [
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stdenv busybox perlPackages.ArchiveCpio unionfs-fuse mkinitcpio-nfs-utils
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# These are used in the configure-from-userdata tests for EC2. Httpd and valgrind are requested
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# directly by the configuration we set, and libxslt.bin is used indirectly as a build dependency
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# of the derivation for dbus configuration files.
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apacheHttpd valgrind.doc libxslt.bin
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];
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}
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];
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}).config.system.build.amazonImage;
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in {
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boot-ec2-nixops = makeEc2Test {
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name = "nixops-userdata";
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inherit image;
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sshPublicKey = snakeOilPublicKey; # That's right folks! My user's key is also the host key!
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userData = ''
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SSH_HOST_ED25519_KEY_PUB:${snakeOilPublicKey}
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SSH_HOST_ED25519_KEY:${replaceStrings ["\n"] ["|"] snakeOilPrivateKey}
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'';
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script = ''
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$machine->start;
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$machine->waitForFile("/etc/ec2-metadata/user-data");
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$machine->waitForUnit("sshd.service");
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$machine->succeed("grep unknown /etc/ec2-metadata/ami-manifest-path");
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# We have no keys configured on the client side yet, so this should fail
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$machine->fail("ssh -o BatchMode=yes localhost exit");
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# Let's install our client private key
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$machine->succeed("mkdir -p ~/.ssh");
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$machine->succeed("echo '${snakeOilPrivateKey}' > ~/.ssh/id_ed25519");
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$machine->succeed("chmod 600 ~/.ssh/id_ed25519");
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# We haven't configured the host key yet, so this should still fail
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$machine->fail("ssh -o BatchMode=yes localhost exit");
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# Add the host key; ssh should finally succeed
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$machine->succeed("echo localhost,127.0.0.1 ${snakeOilPublicKey} > ~/.ssh/known_hosts");
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$machine->succeed("ssh -o BatchMode=yes localhost exit");
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# Test whether the root disk was resized.
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my $blocks = $machine->succeed("stat -c %b -f /");
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my $bsize = $machine->succeed("stat -c %S -f /");
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my $size = $blocks * $bsize;
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die "wrong free space $size" if $size < 9.7 * 1024 * 1024 * 1024 || $size > 10 * 1024 * 1024 * 1024;
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# Just to make sure resizing is idempotent.
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$machine->shutdown;
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$machine->start;
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$machine->waitForFile("/etc/ec2-metadata/user-data");
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'';
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};
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boot-ec2-config = makeEc2Test {
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name = "config-userdata";
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inherit image;
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sshPublicKey = snakeOilPublicKey;
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# ### http://nixos.org/channels/nixos-unstable nixos
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userData = ''
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{ pkgs, ... }:
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{
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imports = [
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<nixpkgs/nixos/modules/virtualisation/amazon-image.nix>
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<nixpkgs/nixos/modules/testing/test-instrumentation.nix>
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<nixpkgs/nixos/modules/profiles/qemu-guest.nix>
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];
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environment.etc.testFile = {
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text = "whoa";
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};
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services.httpd = {
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enable = true;
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adminAddr = "test@example.org";
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documentRoot = "${pkgs.valgrind.doc}/share/doc/valgrind/html";
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};
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networking.firewall.allowedTCPPorts = [ 80 ];
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}
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'';
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script = ''
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$machine->start;
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$machine->waitForFile("/etc/testFile");
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$machine->succeed("cat /etc/testFile | grep -q 'whoa'");
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$machine->waitForUnit("httpd.service");
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$machine->succeed("curl http://localhost | grep Valgrind");
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'';
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};
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}
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