diff --git a/dc/topo/BUILD.bazel b/dc/topo/BUILD.bazel
new file mode 100644
index 0000000..c10300c
--- /dev/null
+++ b/dc/topo/BUILD.bazel
@@ -0,0 +1,31 @@
+load("@io_bazel_rules_go//go:def.bzl", "go_binary", "go_library")
+
+go_library(
+    name = "go_default_library",
+    srcs = [
+        "main.go",
+        "service.go",
+    ],
+    importpath = "code.hackerspace.pl/hscloud/dc/topo",
+    visibility = ["//visibility:private"],
+    deps = [
+        "//dc/topo/assets:go_default_library",
+        "//dc/topo/graph:go_default_library",
+        "//dc/topo/proto:go_default_library",
+        "//dc/topo/state:go_default_library",
+        "//go/mirko:go_default_library",
+        "//go/statusz:go_default_library",
+        "//proto/infra:go_default_library",
+        "@com_github_digitalocean_go_netbox//netbox:go_default_library",
+        "@com_github_digitalocean_go_netbox//netbox/client:go_default_library",
+        "@com_github_golang_glog//:go_default_library",
+        "@com_github_golang_protobuf//proto:go_default_library",
+        "@ml_vbom_util//sortorder:go_default_library",
+    ],
+)
+
+go_binary(
+    name = "topo",
+    embed = [":go_default_library"],
+    visibility = ["//visibility:public"],
+)