nixpkgs/nixos/tests/containers-restart_networking.nix

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# Test for NixOS' container support.
let
client_base = rec {
networking.firewall.enable = false;
containers.webserver = {
autoStart = true;
privateNetwork = true;
hostBridge = "br0";
config = {
networking.firewall.enable = false;
networking.firewall.allowPing = true;
networking.interfaces.eth0.ipv4.addresses = [
{ address = "192.168.1.122"; prefixLength = 24; }
];
};
};
};
in import ./make-test.nix ({ pkgs, lib, ...} :
{
name = "containers-restart_networking";
meta = with pkgs.stdenv.lib.maintainers; {
maintainers = [ kampfschlaefer ];
};
nodes = {
client = { lib, pkgs, ... }: client_base // {
virtualisation.vlans = [ 1 ];
networking.bridges.br0 = {
interfaces = [];
rstp = false;
};
networking.interfaces = {
eth1.ipv4.addresses = lib.mkOverride 0 [ ];
br0.ipv4.addresses = [ { address = "192.168.1.1"; prefixLength = 24; } ];
};
};
client_eth1 = { lib, pkgs, ... }: client_base // {
networking.bridges.br0 = {
interfaces = [ "eth1" ];
rstp = false;
};
networking.interfaces = {
eth1.ipv4.addresses = lib.mkOverride 0 [ ];
br0.ipv4.addresses = [ { address = "192.168.1.2"; prefixLength = 24; } ];
};
};
client_eth1_rstp = { lib, pkgs, ... }: client_base // {
networking.bridges.br0 = {
interfaces = [ "eth1" ];
rstp = true;
};
networking.interfaces = {
eth1.ipv4.addresses = lib.mkOverride 0 [ ];
br0.ipv4.addresses = [ { address = "192.168.1.2"; prefixLength = 24; } ];
};
};
};
testScript = {nodes, ...}: let
originalSystem = nodes.client.config.system.build.toplevel;
eth1_bridged = nodes.client_eth1.config.system.build.toplevel;
eth1_rstp = nodes.client_eth1_rstp.config.system.build.toplevel;
in ''
$client->start();
$client->waitForUnit("default.target");
subtest "initial state", sub {
$client->succeed("ping 192.168.1.122 -c 1 -n >&2");
$client->succeed("nixos-container run webserver -- ping -c 1 -n 192.168.1.1 >&2");
$client->fail("ip l show eth1 |grep \"master br0\" >&2");
$client->fail("grep eth1 /run/br0.interfaces >&2");
};
subtest "interfaces without stp", sub {
$client->succeed("${eth1_bridged}/bin/switch-to-configuration test >&2");
$client->succeed("ping 192.168.1.122 -c 1 -n >&2");
$client->succeed("nixos-container run webserver -- ping -c 1 -n 192.168.1.2 >&2");
$client->succeed("ip l show eth1 |grep \"master br0\" >&2");
$client->succeed("grep eth1 /run/br0.interfaces >&2");
};
# activating rstp needs another service, therefor the bridge will restart and the container will loose its connectivity
#subtest "interfaces with rstp", sub {
# $client->succeed("${eth1_rstp}/bin/switch-to-configuration test >&2");
# $client->execute("ip -4 a >&2");
# $client->execute("ip l >&2");
#
# $client->succeed("ping 192.168.1.122 -c 1 -n >&2");
# $client->succeed("nixos-container run webserver -- ping -c 1 -n 192.168.1.2 >&2");
#
# $client->succeed("ip l show eth1 |grep \"master br0\" >&2");
# $client->succeed("grep eth1 /run/br0.interfaces >&2");
#};
subtest "back to no interfaces and no stp", sub {
$client->succeed("${originalSystem}/bin/switch-to-configuration test >&2");
$client->succeed("ping 192.168.1.122 -c 1 -n >&2");
$client->succeed("nixos-container run webserver -- ping -c 1 -n 192.168.1.1 >&2");
$client->fail("ip l show eth1 |grep \"master br0\" >&2");
$client->fail("grep eth1 /run/br0.interfaces >&2");
};
'';
})