dd81311714
function argument, so that the test script can refer to computed values such as the assigned IP addresses of the virtual machines. svn path=/nixos/trunk/; revision=21939
59 lines
1.7 KiB
Nix
59 lines
1.7 KiB
Nix
# This is a simple distributed test involving a topology with two
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# separate virtual networks - the "inside" and the "outside" - with a
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# client on the inside network, a server on the outside network, and a
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# router connected to both that performs Network Address Translation
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# for the client.
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{ pkgs, ... }:
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{
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nodes =
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{ client =
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{ config, pkgs, nodes, ... }:
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{ virtualisation.vlans = [ 1 ];
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networking.defaultGateway =
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nodes.router.config.networking.ifaces.eth2.ipAddress;
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};
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router =
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{ config, pkgs, ... }:
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{ virtualisation.vlans = [ 2 1 ];
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environment.systemPackages = [ pkgs.iptables ];
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};
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server =
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{ config, pkgs, ... }:
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{ virtualisation.vlans = [ 2 ];
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services.httpd.enable = true;
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services.httpd.adminAddr = "foo@example.org";
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};
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};
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testScript =
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{ nodes, ... }:
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''
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startAll;
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# The router should have access to the server.
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$server->waitForJob("httpd");
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$router->mustSucceed("curl --fail http://server/ >&2");
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# But the client shouldn't be able to reach the server.
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$client->mustFail("curl --fail --connect-timeout 5 http://server/ >&2");
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# Enable NAT on the router.
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$router->mustSucceed(
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"iptables -t nat -F",
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"iptables -t nat -A POSTROUTING -s 192.168.1.0/24 -d 192.168.1.0/24 -j ACCEPT",
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"iptables -t nat -A POSTROUTING -s 192.168.1.0/24 -j SNAT "
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. "--to-source ${nodes.router.config.networking.ifaces.eth1.ipAddress}",
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"echo 1 > /proc/sys/net/ipv4/ip_forward"
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);
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# Now the client should be able to connect.
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$client->mustSucceed("curl --fail http://server/ >&2");
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'';
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}
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