deckhand/deckhand/tests/unit/engine/test_document_layering_and_...

374 lines
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Python

# Copyright 2017 AT&T Intellectual Property. All other 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.
import itertools
import mock
from deckhand import factories
from deckhand.tests.unit.engine import test_document_layering
class TestDocumentLayeringWithSubstitution(
test_document_layering.TestDocumentLayering):
def test_layering_and_substitution_default_scenario(self):
# Validate that layering and substitution work together.
mapping = {
"_GLOBAL_DATA_1_": {"data": {"a": {"x": 1, "y": 2}}},
"_GLOBAL_SUBSTITUTIONS_1_": [{
"dest": {
"path": ".c"
},
"src": {
"schema": "deckhand/Certificate/v1",
"name": "global-cert",
"path": "."
}
}],
"_SITE_DATA_1_": {"data": {"b": 4}},
"_SITE_ACTIONS_1_": {
"actions": [{"method": "merge", "path": "."}]}
}
doc_factory = factories.DocumentFactory(2, [1, 1])
documents = doc_factory.gen_test(mapping, site_abstract=False,
global_abstract=False)
secrets_factory = factories.DocumentSecretFactory()
certificate = secrets_factory.gen_test(
'Certificate', 'cleartext', data='global-secret',
name='global-cert')
global_expected = {'a': {'x': 1, 'y': 2}, 'c': 'global-secret'}
site_expected = {'a': {'x': 1, 'y': 2}, 'b': 4, 'c': 'global-secret'}
self._test_layering(documents, site_expected=site_expected,
global_expected=global_expected,
substitution_sources=[certificate])
def test_layering_and_substitution_no_children(self):
"""Validate that a document with no children undergoes substitution.
global -> (no children) requires substitution
site -> (no parent) do nothing
"""
mapping = {
"_GLOBAL_DATA_1_": {"data": {"a": {"x": 1, "y": 2}}},
"_GLOBAL_SUBSTITUTIONS_1_": [{
"dest": {
"path": ".c"
},
"src": {
"schema": "deckhand/Certificate/v1",
"name": "global-cert",
"path": "."
}
}],
"_SITE_DATA_1_": {"data": {"b": 4}},
"_SITE_ACTIONS_1_": {
"actions": [{"method": "merge", "path": "."}]}
}
doc_factory = factories.DocumentFactory(2, [1, 1])
documents = doc_factory.gen_test(mapping, site_abstract=False,
global_abstract=False)
# Remove the labels from the global document so that the site document
# (the child) has no parent.
documents[1]['metadata']['labels'] = {}
secrets_factory = factories.DocumentSecretFactory()
certificate = secrets_factory.gen_test(
'Certificate', 'cleartext', data='global-secret',
name='global-cert')
global_expected = {'a': {'x': 1, 'y': 2}, 'c': 'global-secret'}
site_expected = {'b': 4}
self._test_layering(documents, site_expected=site_expected,
global_expected=global_expected,
substitution_sources=[certificate])
def test_substitution_without_parent_document(self):
"""Validate that a document with no parent undergoes substitution.
global -> do nothing
site -> (no parent & no children) requires substitution
"""
mapping = {
"_GLOBAL_DATA_1_": {"data": {"a": {"x": 1, "y": 2}}},
"_SITE_DATA_1_": {"data": {"b": 4}},
"_SITE_SUBSTITUTIONS_1_": [{
"dest": {
"path": ".c"
},
"src": {
"schema": "deckhand/Certificate/v1",
"name": "site-cert",
"path": "."
}
}],
# No layering should be applied as the document has no parent.
"_SITE_ACTIONS_1_": {
"actions": [{"method": "merge", "path": "."}]}
}
doc_factory = factories.DocumentFactory(2, [1, 1])
documents = doc_factory.gen_test(mapping, site_abstract=False,
global_abstract=False)
# Remove the labels from the global document so that the site document
# (the child) has no parent.
documents[1]['metadata']['labels'] = {}
secrets_factory = factories.DocumentSecretFactory()
certificate = secrets_factory.gen_test(
'Certificate', 'cleartext', data='site-secret',
name='site-cert')
global_expected = {'a': {'x': 1, 'y': 2}}
site_expected = {'b': 4, 'c': 'site-secret'}
self._test_layering(documents, site_expected=site_expected,
global_expected=global_expected,
substitution_sources=[certificate])
def test_parent_and_child_undergo_layering_and_substitution(self):
"""Validate that parent and child documents both undergo layering and
substitution.
global -> requires substitution
|
v
site -> requires substitution
"""
mapping = {
"_GLOBAL_DATA_1_": {"data": {"a": {"x": 1, "y": 2}}},
"_GLOBAL_SUBSTITUTIONS_1_": [{
"dest": {
"path": ".b"
},
"src": {
"schema": "deckhand/Certificate/v1",
"name": "global-cert",
"path": "."
}
}],
"_SITE_DATA_1_": {"data": {"c": "need-site-secret"}},
"_SITE_ACTIONS_1_": {
"actions": [{"method": "merge", "path": "."}]},
"_SITE_SUBSTITUTIONS_1_": [{
"dest": {
"path": ".c"
},
"src": {
"schema": "deckhand/CertificateKey/v1",
"name": "site-cert",
"path": "."
}
}],
}
doc_factory = factories.DocumentFactory(2, [1, 1])
documents = doc_factory.gen_test(mapping, site_abstract=False,
global_abstract=False)
secrets_factory = factories.DocumentSecretFactory()
global_expected = {'a': {'x': 1, 'y': 2}, 'b': 'global-secret'}
site_expected = {'a': {'x': 1, 'y': 2}, 'b': 'global-secret',
'c': 'site-secret'}
certificate = secrets_factory.gen_test(
'Certificate', 'cleartext', data='global-secret',
name='global-cert')
certificate_key = secrets_factory.gen_test(
'CertificateKey', 'cleartext', data='site-secret',
name='site-cert')
self._test_layering(
documents, site_expected=site_expected,
global_expected=global_expected,
substitution_sources=[certificate, certificate_key])
@mock.patch('deckhand.engine.layering.LOG', autospec=True)
def test_parent_and_child_undergo_layering_and_substitution_empty_layers(
self, mock_log):
"""Validate that parent and child documents both undergo substitution
and layering.
empty layer -> discard
|
v
empty layer -> discard
|
v
global -> requires substitution
|
v
empty layer -> discard
|
V
site -> requires substitution (layered with global)
Where the site's parent is actually the global document.
"""
mapping = {
"_GLOBAL_DATA_1_": {"data": {"a": {"x": 1, "y": 2}}},
"_GLOBAL_SUBSTITUTIONS_1_": [{
"dest": {
"path": ".b"
},
"src": {
"schema": "deckhand/Certificate/v1",
"name": "global-cert",
"path": "."
}
}],
"_SITE_DATA_1_": {"data": {"c": "need-site-secret"}},
"_SITE_ACTIONS_1_": {
"actions": [{"method": "merge", "path": "."}]},
"_SITE_SUBSTITUTIONS_1_": [{
"dest": {
"path": ".c"
},
"src": {
"schema": "deckhand/CertificateKey/v1",
"name": "site-cert",
"path": "."
}
}],
}
doc_factory = factories.DocumentFactory(2, [1, 1])
documents = doc_factory.gen_test(mapping, site_abstract=False,
global_abstract=False)
documents[0]['data']['layerOrder'] = [
'empty_1', 'empty_2', 'global', 'empty_3', 'site']
secrets_factory = factories.DocumentSecretFactory()
global_expected = {'a': {'x': 1, 'y': 2}, 'b': 'global-secret'}
site_expected = {'a': {'x': 1, 'y': 2}, 'b': 'global-secret',
'c': 'site-secret'}
certificate = secrets_factory.gen_test(
'Certificate', 'cleartext', data='global-secret',
name='global-cert')
certificate_key = secrets_factory.gen_test(
'CertificateKey', 'cleartext', data='site-secret',
name='site-cert')
self._test_layering(
documents, site_expected=site_expected,
global_expected=global_expected,
substitution_sources=[certificate, certificate_key])
expected_message = (
'%s is an empty layer with no documents. It will be discarded '
'from the layerOrder during the layering process.')
expected_log_calls = [mock.call(expected_message, layer)
for layer in ('empty_1', 'empty_2', 'empty_3')]
mock_log.info.assert_has_calls(expected_log_calls)
def test_layering_with_substitution_dependency_chain(self):
"""Validate that parent with multiple children that substitute from
each other works no matter the order of the documents.
"""
mapping = {
"_GLOBAL_DATA_1_": {"data": {"a": {"x": 1, "y": 2}}},
"_GLOBAL_SUBSTITUTIONS_1_": [{
"dest": {
"path": ".b"
},
"src": {
"schema": "deckhand/Certificate/v1",
"name": "global-cert",
"path": "."
}
}],
"_SITE_NAME_1_": "site-1",
"_SITE_DATA_1_": {"data": {"c": "placeholder"}},
"_SITE_ACTIONS_1_": {
"actions": [{"method": "merge", "path": "."}]},
"_SITE_SUBSTITUTIONS_1_": [{
"dest": {
"path": ".c"
},
"src": {
"schema": "deckhand/CertificateKey/v1",
"name": "site-cert",
"path": "."
}
}],
"_SITE_NAME_2_": "site-2",
"_SITE_DATA_2_": {"data": {"d": "placeholder"}},
"_SITE_ACTIONS_2_": {
"actions": [{"method": "merge", "path": "."}]},
"_SITE_SUBSTITUTIONS_2_": [{
"dest": {
"path": ".d"
},
"src": {
"schema": "example/Kind/v1",
"name": "site-1",
"path": ".c"
}
}],
"_SITE_NAME_3_": "site-3",
"_SITE_DATA_3_": {"data": {"e": "placeholder"}},
"_SITE_ACTIONS_3_": {
"actions": [{"method": "merge", "path": "."}]},
"_SITE_SUBSTITUTIONS_3_": [{
"dest": {
"path": ".e"
},
"src": {
"schema": "example/Kind/v1",
"name": "site-2",
"path": ".d"
}
}]
}
doc_factory = factories.DocumentFactory(2, [1, 3])
documents = doc_factory.gen_test(mapping, site_abstract=False,
global_abstract=False)
secrets_factory = factories.DocumentSecretFactory()
global_expected = {'a': {'x': 1, 'y': 2}, 'b': 'global-secret'}
site_expected = [
{'a': {'x': 1, 'y': 2}, 'b': 'global-secret', 'c': 'site-secret'},
{'a': {'x': 1, 'y': 2}, 'b': 'global-secret', 'd': 'site-secret'},
{'a': {'x': 1, 'y': 2}, 'b': 'global-secret', 'e': 'site-secret'}
]
certificate = secrets_factory.gen_test(
'Certificate', 'cleartext', data='global-secret',
name='global-cert')
certificate_key = secrets_factory.gen_test(
'CertificateKey', 'cleartext', data='site-secret',
name='site-cert')
# Pass in the documents in reverse order to ensure that the dependency
# chain by default is not linear and thus requires sorting.
self._test_layering(
list(reversed(documents)), site_expected=site_expected,
global_expected=global_expected,
substitution_sources=[certificate, certificate_key] + documents)
# Try different permutations of document orders for good measure.
for document_order in list(itertools.permutations(documents))[:10]:
self._test_layering(
document_order, site_expected=site_expected,
global_expected=global_expected,
substitution_sources=[
certificate, certificate_key] + documents)