mirror of
https://github.com/NixOS/nixpkgs.git
synced 2024-11-24 07:53:19 +00:00
b3de22483c
This is a decomposition of the testing-python.nix and build-vms.nix
files into modules.
By refactoring the glue, we accomplish the following:
- NixOS tests can now use `imports` and other module system features.
- Network-wide test setup can now be reusable; example:
- A setup with all VMs configured to use a DNS server
- Split long, slow tests into multiple tests that import a
common module that has most of the setup.
- Type checking for the test arguments
- (TBD) "generated" options reference docs
- Aspects that had to be wired through all the glue are now in their
own files.
- Chief example: interactive.nix.
- Also: network.nix
In rewriting this, I've generally stuck as close as possible to the
existing code; copying pieces of logic and rewiring them, without
changing the logic itself.
I've made two exceptions to this rule
- Introduction of `extraDriverArgs` instead of hardcoded
interactivity logic.
- Incorporation of https://github.com/NixOS/nixpkgs/pull/144110
in testScript.nix.
I might revert the latter and split it into a new commit.
76 lines
2.4 KiB
Nix
76 lines
2.4 KiB
Nix
{ lib, nodes, ... }:
|
|
|
|
with lib;
|
|
|
|
|
|
let
|
|
machines = attrNames nodes;
|
|
|
|
machinesNumbered = zipLists machines (range 1 254);
|
|
|
|
nodes_ = forEach machinesNumbered (m: nameValuePair m.fst
|
|
[
|
|
({ config, nodes, pkgs, ... }:
|
|
let
|
|
interfacesNumbered = zipLists config.virtualisation.vlans (range 1 255);
|
|
interfaces = forEach interfacesNumbered ({ fst, snd }:
|
|
nameValuePair "eth${toString snd}" {
|
|
ipv4.addresses =
|
|
[{
|
|
address = "192.168.${toString fst}.${toString m.snd}";
|
|
prefixLength = 24;
|
|
}];
|
|
});
|
|
|
|
networkConfig =
|
|
{
|
|
networking.hostName = mkDefault m.fst;
|
|
|
|
networking.interfaces = listToAttrs interfaces;
|
|
|
|
networking.primaryIPAddress =
|
|
optionalString (interfaces != [ ]) (head (head interfaces).value.ipv4.addresses).address;
|
|
|
|
# Put the IP addresses of all VMs in this machine's
|
|
# /etc/hosts file. If a machine has multiple
|
|
# interfaces, use the IP address corresponding to
|
|
# the first interface (i.e. the first network in its
|
|
# virtualisation.vlans option).
|
|
networking.extraHosts = flip concatMapStrings machines
|
|
(m':
|
|
let config = (getAttr m' nodes).config; in
|
|
optionalString (config.networking.primaryIPAddress != "")
|
|
("${config.networking.primaryIPAddress} " +
|
|
optionalString (config.networking.domain != null)
|
|
"${config.networking.hostName}.${config.networking.domain} " +
|
|
"${config.networking.hostName}\n"));
|
|
|
|
virtualisation.qemu.options =
|
|
let qemu-common = import ../qemu-common.nix { inherit lib pkgs; };
|
|
in
|
|
flip concatMap interfacesNumbered
|
|
({ fst, snd }: qemu-common.qemuNICFlags snd fst m.snd);
|
|
};
|
|
|
|
in
|
|
{
|
|
key = "ip-address";
|
|
config = networkConfig // {
|
|
# Expose the networkConfig items for tests like nixops
|
|
# that need to recreate the network config.
|
|
system.build.networkConfig = networkConfig;
|
|
};
|
|
}
|
|
)
|
|
]);
|
|
|
|
extraNodeConfigs = lib.listToAttrs nodes_;
|
|
in
|
|
{
|
|
config = {
|
|
defaults = { config, name, ... }: {
|
|
imports = extraNodeConfigs.${name};
|
|
};
|
|
};
|
|
}
|