nixops: fix

Change-Id: I15ebde319fcae3f9771da6a549e52783e0ec4409
diff --git a/cluster/tools/BUILD b/cluster/tools/BUILD
index 974463d..de5c5b7 100644
--- a/cluster/tools/BUILD
+++ b/cluster/tools/BUILD
@@ -31,15 +31,9 @@
     visibility = ["//visibility:public"],
 )
 
-copy_go_binary(
-	name = "nixops.bin",
-    src = "@nixops//:bin",
-    visibility = ["//visibility:public"],
-)
-
 sh_binary(
     name = "nixops",
     srcs = ["nixops.sh"],
-    data = [":nixops.bin", "//tools:secretstore"],
+    data = ["@nixops//:bin", "//tools:secretstore"],
 )
 
diff --git a/cluster/tools/nixops.sh b/cluster/tools/nixops.sh
index f3848d2..e810972 100755
--- a/cluster/tools/nixops.sh
+++ b/cluster/tools/nixops.sh
@@ -19,4 +19,4 @@
 export GCE_SERVICE_ACCOUNT="nixops@hscloud.iam.gserviceaccount.com"
 export ACCESS_KEYPATH="$hscloud_root/gcp/secrets/plain/sa.pem"
 
-nixops.bin "$@"
+./external/nixops/bin/nixops "$@"