depot/third_party/nixpkgs/nixos/tests/systemd-initrd-bridge.nix

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import ./make-test-python.nix ({ lib, ... }: {
name = "systemd-initrd-bridge";
meta.maintainers = [ lib.maintainers.majiir ];
# Tests bridge interface configuration in systemd-initrd.
#
# The 'a' and 'b' nodes are connected to a 'bridge' node through different
# links. The 'bridge' node configures a bridge across them. It waits forever
# in initrd (stage 1) with networking enabled. 'a' and 'b' ping 'bridge' to
# test connectivity with the bridge interface. Then, 'a' pings 'b' to test
# the bridge itself.
nodes = {
bridge = { config, lib, ... }: {
boot.initrd.systemd.enable = true;
boot.initrd.network.enable = true;
boot.initrd.systemd.services.boot-blocker = {
before = [ "initrd.target" ];
wantedBy = [ "initrd.target" ];
script = "sleep infinity";
serviceConfig.Type = "oneshot";
};
networking.primaryIPAddress = "192.168.1.${toString config.virtualisation.test.nodeNumber}";
virtualisation.vlans = [ 1 2 ];
networking.bridges.br0.interfaces = [ "eth1" "eth2" ];
networking.interfaces = {
eth1.ipv4.addresses = lib.mkForce [];
eth2.ipv4.addresses = lib.mkForce [];
br0.ipv4.addresses = [{
address = config.networking.primaryIPAddress;
prefixLength = 24;
}];
};
};
a = {
virtualisation.vlans = [ 1 ];
};
b = { config, ... }: {
virtualisation.vlans = [ 2 ];
networking.primaryIPAddress = lib.mkForce "192.168.1.${toString config.virtualisation.test.nodeNumber}";
networking.interfaces.eth1.ipv4.addresses = lib.mkForce [{
address = config.networking.primaryIPAddress;
prefixLength = 24;
}];
};
};
testScript = ''
start_all()
a.wait_for_unit("network.target")
b.wait_for_unit("network.target")
a.succeed("ping -n -w 10 -c 1 bridge >&2")
b.succeed("ping -n -w 10 -c 1 bridge >&2")
a.succeed("ping -n -w 10 -c 1 b >&2")
'';
})