Build release tarballs in bazel and add make bazel-release rule

test/BUILD

@@ -18,6 +18,7 @@ filegroup(
         "//test/fixtures:all-srcs",
         "//test/images:all-srcs",
         "//test/integration:all-srcs",
+        "//test/kubemark:all-srcs",
         "//test/list:all-srcs",
         "//test/soak/cauldron:all-srcs",
         "//test/soak/serve_hostnames:all-srcs",

test/kubemark/BUILD

@@ -0,0 +1,16 @@
+package(default_visibility = ["//visibility:public"])
+
+licenses(["notice"])
+
+filegroup(
+    name = "package-srcs",
+    srcs = glob(["**"]),
+    tags = ["automanaged"],
+    visibility = ["//visibility:private"],
+)
+
+filegroup(
+    name = "all-srcs",
+    srcs = [":package-srcs"],
+    tags = ["automanaged"],
+)