edge01: systemd unit for running RIPE Atlas anchor VM

Change-Id: I5d91c3b3075c404af92d40f33a48a487b84ec7a5
diff --git a/bgpwtf/machines/tests/edge01-waw.nix b/bgpwtf/machines/tests/edge01-waw.nix
index e0298d2..535418f 100644
--- a/bgpwtf/machines/tests/edge01-waw.nix
+++ b/bgpwtf/machines/tests/edge01-waw.nix
@@ -163,6 +163,17 @@
         "e4-oob" = { virtual = true; virtualType = "tap"; };
         "e7-dcsw" = { virtual = true; virtualType = "tap"; };
       };
+      hscloud.anchorvm = {
+        blkdev = "/anchor.img";
+        ram = 32;
+      };
+      systemd.services.anchorTestImg = {
+        requiredBy = [ "anchorvm.service" ];
+        serviceConfig = {
+          Type = "oneshot";
+          ExecStart = "${pkgs.coreutils}/bin/truncate -s 128m /anchor.img";
+        };
+      };
     };
 
     speaker = mkBGPSpeaker;