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nixos/tests/nat: use specialisations instead of multiple machines

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K900 2024-09-08 16:08:31 +03:00
parent cc536b4cb8
commit fe0a640a85
1 changed files with 22 additions and 37 deletions
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55
nixos/tests/nat.nix
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@ -6,17 +6,6 @@
import ./make-test-python.nix ({ pkgs, lib, withFirewall, nftables ? false, ... }:
let
unit = if nftables then "nftables" else (if withFirewall then "firewall" else "nat");
routerBase =
lib.mkMerge [
{ virtualisation.vlans = [ 2 1 ];
networking.firewall.enable = withFirewall;
networking.firewall.filterForward = nftables;
networking.nftables.enable = nftables;
networking.nat.internalIPs = [ "192.168.1.0/24" ];
networking.nat.externalInterface = "eth1";
}
];
in
{
name = "nat" + (lib.optionalString nftables "Nftables")
@ -26,27 +15,27 @@ import ./make-test-python.nix ({ pkgs, lib, withFirewall, nftables ? false, ...
};
nodes =
{ client =
{ pkgs, nodes, ... }:
lib.mkMerge [
{ virtualisation.vlans = [ 1 ];
{
client = { lib, nodes, ... }: {
virtualisation.vlans = [ 1 ];
networking.defaultGateway =
(pkgs.lib.head nodes.router.networking.interfaces.eth2.ipv4.addresses).address;
(lib.head nodes.router.networking.interfaces.eth2.ipv4.addresses).address;
networking.nftables.enable = nftables;
}
];
};
router =
{ ... }: lib.mkMerge [
routerBase
{ networking.nat.enable = true; }
];
router = { lib, ... }: {
virtualisation.vlans = [ 2 1 ];
networking.firewall.enable = withFirewall;
networking.firewall.filterForward = nftables;
networking.nftables.enable = nftables;
networking.nat.enable = true;
networking.nat.internalIPs = [ "192.168.1.0/24" ];
networking.nat.externalInterface = "eth1";
routerDummyNoNat =
{ ... }: lib.mkMerge [
routerBase
{ networking.nat.enable = false; }
];
specialisation.no-nat.configuration = {
networking.nat.enable = lib.mkForce false;
};
};
server =
{ ... }:
@ -59,11 +48,7 @@ import ./make-test-python.nix ({ pkgs, lib, withFirewall, nftables ? false, ...
};
};
testScript =
{ nodes, ... }: let
routerDummyNoNatClosure = nodes.routerDummyNoNat.system.build.toplevel;
routerClosure = nodes.router.system.build.toplevel;
in ''
testScript = ''
client.start()
router.start()
server.start()
@ -94,14 +79,14 @@ import ./make-test-python.nix ({ pkgs, lib, withFirewall, nftables ? false, ...
# If we turn off NAT, the client shouldn't be able to reach the server.
router.succeed(
"${routerDummyNoNatClosure}/bin/switch-to-configuration test 2>&1"
"/run/booted-system/specialisation/no-nat/bin/switch-to-configuration test 2>&1"
)
client.fail("curl -4 --fail --connect-timeout 5 http://server/ >&2")
client.fail("ping -4 -c 1 server >&2")
# And make sure that reloading the NAT job works.
router.succeed(
"${routerClosure}/bin/switch-to-configuration test 2>&1"
"/run/booted-system/bin/switch-to-configuration test 2>&1"
)
# FIXME: this should not be necessary, but nat.service is not started because
# network.target is not triggered