Add generated file

This PR adds generated files under pkg/client and vendor folder.

vendor/k8s.io/kubernetes/build/workspace_mirror.bzl

@@ -0,0 +1,57 @@
+# Copyright 2018 The Kubernetes Authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+prefix = "https://storage.googleapis.com/k8s-bazel-cache/"
+
+def mirror(url):
+    """Try downloading a URL from a GCS mirror first, then from the original.
+
+    Update the GCS bucket using bazel run //hack:update-mirror"""
+    return [prefix + url, url]
+
+def mirror_urls():
+    # This function only gives proper results when executed from WORKSPACE,
+    # but the data is needed in sh_binary, which can only be in a BUILD file.
+    # Thus, it is be exported by a repository_rule (which executes in WORKSPACE)
+    # to be used by the sh_binary.
+    urls = []
+    for k, v in native.existing_rules().items():
+        us = list(v.get("urls", []))
+        if "url" in v:
+            us.append(v["url"])
+        for u in us:
+            if u and not u.startswith(prefix):
+                urls.append(u)
+    return sorted(urls)
+
+def export_urls_impl(repo_ctx):
+    repo_ctx.file(repo_ctx.path("BUILD.bazel"), """
+exports_files(glob(["**"]), visibility=["//visibility:public"])
+""")
+    repo_ctx.file(
+        repo_ctx.path("urls.txt"),
+        # Add a trailing newline, since the "while read" loop needs it
+        content = ("\n".join(repo_ctx.attr.urls) + "\n"),
+    )
+
+_export_urls = repository_rule(
+    attrs = {
+        "urls": attr.string_list(mandatory = True),
+    },
+    local = True,
+    implementation = export_urls_impl,
+)
+
+def export_urls(name):
+    return _export_urls(name = name, urls = mirror_urls())