Integration test refactoring (#126)

* integration test refactoring

* config file cleanup

* more test refactoring

* remove debug file

* moving around more files

* fixing up integration tests

* integration tests work

* some housekeeping

* fixing tests

* addressing comments

* debugging

* debugging

* actual debugging

* skip integration tests for travis

* install container-diff before integration tests

* syntax

* make test failures less noisy

* fixing tests

* hopefully fixing CI?

* fixes

* more fixes

* let's actually fix CI

* more testing

* testing

* proper auth

* typos

* adding support for args in integration tests

* formatting

* formatting

* adding support for testing bucket context

* adding bucket test dockerfile

* addressing comments

* syntax

integration/dockerfiles/Dockerfile_test_run

@@ -0,0 +1,23 @@
+# Copyright 2018 Google, Inc. All rights reserved.
+#
+# 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.
+
+FROM gcr.io/google-appengine/debian9
+RUN echo "hey" > /etc/foo
+RUN echo "baz" > /etc/baz
+RUN cp /etc/baz /etc/bar
+RUN rm /etc/baz
+
+# Test with ARG
+ARG file
+RUN echo "run" > $file