Try to use bazel to build/push kubemark image

cluster/images/kubemark/BUILD

@@ -0,0 +1,33 @@
+package(default_visibility = ["//visibility:public"])
+
+load("@io_bazel_rules_docker//docker:docker.bzl", "docker_build", "docker_push")
+
+docker_build(
+    name = "image",
+    base = "@official_busybox//image",
+    entrypoint = ["/kubemark"],
+    files = ["//cmd/kubemark"],
+)
+
+docker_push(
+    name = "push",
+    image = ":image",
+    registry = "gcr.io",
+    repository = "$(PROJECT)/kubemark",
+    stamp = True,
+    tag = "latest",
+)
+
+filegroup(
+    name = "package-srcs",
+    srcs = glob(["**"]),
+    tags = ["automanaged"],
+    visibility = ["//visibility:private"],
+)
+
+filegroup(
+    name = "all-srcs",
+    srcs = [":package-srcs"],
+    tags = ["automanaged"],
+    visibility = ["//visibility:public"],
+)