nixpkgs/nixos/modules/virtualisation/openstack-config.nix

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{ pkgs, lib, ... }:
with lib;
let
metadataFetcher = import ./openstack-metadata-fetcher.nix {
targetRoot = "/";
wgetExtraOptions = "--retry-connrefused";
};
in
{
imports = [
../profiles/qemu-guest.nix
../profiles/headless.nix
# The Openstack Metadata service exposes data on an EC2 API also.
./ec2-data.nix
./amazon-init.nix
];
config = {
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fileSystems."/" = {
device = "/dev/disk/by-label/nixos";
fsType = "ext4";
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autoResize = true;
};
boot.growPartition = true;
boot.kernelParams = [ "console=ttyS0" ];
boot.loader.grub.device = "/dev/vda";
boot.loader.timeout = 0;
# Allow root logins
services.openssh = {
enable = true;
permitRootLogin = "prohibit-password";
passwordAuthentication = mkDefault false;
};
# Force getting the hostname from Openstack metadata.
networking.hostName = mkDefault "";
systemd.services.openstack-init = {
path = [ pkgs.wget ];
description = "Fetch Metadata on startup";
wantedBy = [ "multi-user.target" ];
before = [ "apply-ec2-data.service" "amazon-init.service"];
wants = [ "network-online.target" ];
after = [ "network-online.target" ];
script = metadataFetcher;
restartIfChanged = false;
unitConfig.X-StopOnRemoval = false;
serviceConfig = {
Type = "oneshot";
RemainAfterExit = true;
};
};
};
}