Test-infra: bazel test //... -- -//vendor/... has external dependencies

[fejta]

https://prow.k8s.io/view/gcs/kubernetes-jenkins/logs/ci-test-infra-autoupdate-patch/2

INFO: From Testing //kettle:stream_test:
==================== Test output for //kettle:stream_test:
Traceback (most recent call last):
File "/home/prow/go/src/github.com/kubernetes/test-infra/kettle/stream.py", line 32, in <module>
from google.cloud import bigquery
ImportError: No module named google.cloud
WARNING: unable to load google cloud (test environment?)
Traceback (most recent call last):
File "/root/.cache/bazel/_bazel_root/05618a594cb3499a4b912817865867cd/sandbox/processwrapper-sandbox/1776/execroot/io_k8s_test_infra/bazel-out/k8-fastbuild/bin/kettle/stream_test.runfiles/io_k8s_test_infra/kettle/stream_test.py", line 21, in <module>
import stream
File "/home/prow/go/src/github.com/kubernetes/test-infra/kettle/stream.py", line 40, in <module>
import make_db
File "/home/prow/go/src/github.com/kubernetes/test-infra/kettle/make_db.py", line 33, in <module>
import yaml
ImportError: No module named yaml
================================================================================

[fejta]

My goal here is I want to be able to take a clean VM, install git and bazel, clone test infra and bazel test //... everything

[krzyzacy]

filter out all pytest? /shrug

[stevekuznetsov]

esp if we deprecate gubernator

[fejta]

OR we could, you know, write encapsulated tests rather than expecting the user to figure out how to fetch ten billion dependencies for different languages.

kettle isn't going away any time soon

This is why bazel and golang are nice. We should expect bazel test //foo or go test foo to just work, without me going on some giant errand quest first.

[krzyzacy]

(rewrite kettle in go!)