container-tests: add multi-container network

checks/lib/container-test.nix

@@ -4,49 +4,52 @@ let
   inherit (pkgs) lib;
   nixos-lib = import (pkgs.path + "/nixos/lib") { };
 in
-(nixos-lib.runTest (
-  { hostPkgs, ... }:
-  {
-    hostPkgs = pkgs;
-    # speed-up evaluation
-    defaults =
-      { config, options, ... }:
-      {
-        imports = [
-          self.clanLib.test.minifyModule
-        ];
-        config = lib.mkMerge [
-          (lib.optionalAttrs (options ? clan) {
-            clan.core.settings.machine.name = config.networking.hostName;
-          })
-          {
-            documentation.enable = lib.mkDefault false;
-            boot.isContainer = true;
+(nixos-lib.runTest {
+  hostPkgs = pkgs;
+  # speed-up evaluation
+  defaults =
+    { config, options, ... }:
+    {
+      imports = [
+        self.clanLib.test.minifyModule
+      ];
+      config = lib.mkMerge [
+        (lib.optionalAttrs (options ? clan) {
+          clan.core.settings.machine.name = config.networking.hostName;
+        })
+        {
+          documentation.enable = lib.mkDefault false;
+          boot.isContainer = true;
 
-            # needed since nixpkgs 7fb2f407c01b017737eafc26b065d7f56434a992 removed the getty unit by default
-            console.enable = true;
+          # needed since nixpkgs 7fb2f407c01b017737eafc26b065d7f56434a992 removed the getty unit by default
+          console.enable = true;
 
-            # undo qemu stuff
-            system.build.initialRamdisk = "";
-            virtualisation.sharedDirectories = lib.mkForce { };
-            networking.useDHCP = false;
+          # undo qemu stuff
+          system.build.initialRamdisk = "";
+          virtualisation.sharedDirectories = lib.mkForce { };
+          networking.useDHCP = false;
 
-            # we have not private networking so far
-            networking.interfaces = lib.mkForce { };
-            #networking.primaryIPAddress = lib.mkForce null;
-            systemd.services.backdoor.enable = false;
+          # We use networkd to assign static ip addresses
+          networking.useNetworkd = true;
+          services.resolved.enable = false;
 
-            # we don't have permission to set cpu scheduler in our container
-            systemd.services.nix-daemon.serviceConfig.CPUSchedulingPolicy = lib.mkForce "";
-          }
-        ];
-      };
-    # to accept external dependencies such as disko
-    node.specialArgs.self = self;
-    _module.args = { inherit self; };
-    imports = [
-      test
-      ./container-driver/module.nix
-    ];
-  }
-)).config.result
+          # Rename the host0 interface to eth0 to match what we expect in VM tests.
+          system.activationScripts.renameInterface = ''
+            ${pkgs.iproute2}/bin/ip link set dev host0 name eth1
+          '';
+
+          systemd.services.backdoor.enable = false;
+
+          # we don't have permission to set cpu scheduler in our container
+          systemd.services.nix-daemon.serviceConfig.CPUSchedulingPolicy = lib.mkForce "";
+        }
+      ];
+    };
+  # to accept external dependencies such as disko
+  node.specialArgs.self = self;
+  _module.args = { inherit self; };
+  imports = [
+    test
+    ./container-driver/module.nix
+  ];
+}).config.result