8ce36ffb3a
since the latter is rather deprecated and has been unmaintained
since 2001. Note that "ip" doesn't know about classful addressing,
so you can no longer get away with not specifying the subnet mask
for explicitly configured interfaces. So if you had
networking.interfaces =
[ { name = "eth0"; ipAddress = "192.168.1.1"; } ];
this should be changed to
networking.interfaces =
[ { name = "eth0";
ipAddress = "192.168.1.1";
subnetMask = "255.255.255.0";
}
];
otherwise you end up with a subnet mask of 255.255.255.255.
svn path=/nixos/trunk/; revision=26279
90 lines
3.2 KiB
Nix
90 lines
3.2 KiB
Nix
{ nixpkgs, services, system }:
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let pkgs = import nixpkgs { config = {}; inherit system; }; in
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with pkgs;
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with import ../lib/qemu-flags.nix;
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rec {
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inherit pkgs;
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# Build a virtual network from an attribute set `{ machine1 =
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# config1; ... machineN = configN; }', where `machineX' is the
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# hostname and `configX' is a NixOS system configuration. Each
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# machine is given an arbitrary IP address in the virtual network.
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buildVirtualNetwork =
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nodes: let nodesOut = lib.mapAttrs (n: buildVM nodesOut) (assignIPAddresses nodes); in nodesOut;
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buildVM =
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nodes: configurations:
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import ./eval-config.nix {
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inherit nixpkgs services system;
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modules = configurations ++
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[ ../modules/virtualisation/qemu-vm.nix
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../modules/testing/test-instrumentation.nix # !!! should only get added for automated test runs
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{ key = "no-manual"; services.nixosManual.enable = false; }
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];
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extraArgs = { inherit nodes; };
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};
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# Given an attribute set { machine1 = config1; ... machineN =
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# configN; }, sequentially assign IP addresses in the 192.168.1.0/24
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# range to each machine, and set the hostname to the attribute name.
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assignIPAddresses = nodes:
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let
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machines = lib.attrNames nodes;
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machinesNumbered = lib.zipTwoLists machines (lib.range 1 254);
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nodes_ = lib.flip map machinesNumbered (m: lib.nameValuePair m.first
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[ ( { config, pkgs, nodes, ... }:
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let
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interfacesNumbered = lib.zipTwoLists config.virtualisation.vlans (lib.range 1 255);
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interfaces =
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lib.flip map interfacesNumbered ({ first, second }:
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{ name = "eth${toString second}";
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ipAddress = "192.168.${toString first}.${toString m.second}";
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subnetMask = "255.255.255.0";
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}
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);
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in
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{ key = "ip-address";
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config =
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{ networking.hostName = m.first;
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networking.interfaces = interfaces;
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networking.primaryIPAddress =
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lib.optionalString (interfaces != []) (lib.head interfaces).ipAddress;
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# Put the IP addresses of all VMs in this machine's
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# /etc/hosts file. If a machine has multiple
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# interfaces, use the IP address corresponding to
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# the first interface (i.e. the first network in its
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# virtualisation.vlans option).
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networking.extraHosts = lib.flip lib.concatMapStrings machines
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(m: let config = (lib.getAttr m nodes).config; in
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lib.optionalString (config.networking.primaryIPAddress != "")
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("${config.networking.primaryIPAddress} " +
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"${config.networking.hostName}\n"));
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virtualisation.qemu.options =
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lib.flip lib.concatMapStrings interfacesNumbered
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({ first, second }: qemuNICFlags second first m.second);
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};
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}
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)
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(lib.getAttr m.first nodes)
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] );
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in lib.listToAttrs nodes_;
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}
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