Add tests for th ehub-and-spoke-vpns infra example

tests/infrastructure/hub-and-spoke-vpns/__init__.py

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+# Copyright 2019 Google LLC
+#
+# 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
+#
+#     https://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.

tests/infrastructure/hub-and-spoke-vpns/conftest.py

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+# Copyright 2019 Google LLC
+#
+# 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
+#
+#     https://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.
+
+"Plan fixture."
+
+import os
+
+import pytest
+
+
+_TFDIR = os.path.sep.join(os.path.abspath(__file__).split(os.path.sep)[-3:-1])
+
+
+@pytest.fixture(scope='package')
+def plan(plan):
+  return plan(_TFDIR)

tests/infrastructure/hub-and-spoke-vpns/terraform.tfvars

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+hub_project_id     = "automation-examples"
+spoke_1_project_id = "automation-examples"
+spoke_2_project_id = "automation-examples"

tests/infrastructure/hub-and-spoke-vpns/test_cloud_routers.py

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+# Copyright 2019 Google LLC
+#
+# 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
+#
+#     https://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.
+
+"Test cloud routers resources creation in root module."
+
+
+def test_hub_custom_routers(plan):
+  "Custom routers should match input variables."
+  hub_custom_router_tpl = ('google_compute_router.hub-to-spoke-%s-custom[0]')
+  count = range(1, 3)
+  for i in count:
+    name = hub_custom_router_tpl % i
+    custom_router = plan.resource_changes[name]
+    assert custom_router['change']['after']['bgp'][0]['advertise_mode'] == 'CUSTOM'
+    assert custom_router['change']['after']['bgp'][0]['advertised_groups'] == ['ALL_SUBNETS']
+    assert custom_router['change']['after']['bgp'][0]['asn'] == plan.variables['hub_bgp_asn']
+    assert [range['range'] for range in custom_router['change']['after']['bgp'][0]['advertised_ip_ranges']] == [subnet['subnet_ip'] for subnet in plan.variables['spoke_%s_subnets' % (3 - i)]]
+
+def test_spoke_routers(plan):
+  "Spoke routers should match input variables."
+  spoke_router_tpl = ('google_compute_router.spoke-%s')
+  spoke_bgp_asn_tpl = ('spoke_%s_bgp_asn')
+  count = range(1, 3)
+  for i in count:
+    spoke_router = plan.resource_changes[spoke_router_tpl % i]
+    spoke_bgp_asn = plan.variables[spoke_bgp_asn_tpl % i]
+    assert spoke_router['change']['after']['bgp'][0]['advertise_mode'] == 'DEFAULT'
+    assert spoke_router['change']['after']['bgp'][0]['advertised_groups'] == None
+    assert spoke_router['change']['after']['bgp'][0]['asn'] == spoke_bgp_asn

tests/infrastructure/hub-and-spoke-vpns/test_firewall.py

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+# Copyright 2019 Google LLC
+#
+# 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
+#
+#     https://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.
+
+"Test firewall resources creation in root module."
+
+
+import pytest
+
+@pytest.fixture(scope='module')
+def firewall_modules(plan):
+  names = ['module.firewall-%s' %
+           name for name in ('hub', 'spoke-1', 'spoke-2')]
+  return dict((name, plan.modules[name]) for name in names)
+
+
+def test_firewall_rules(plan, firewall_modules):
+  "Test that the hub and spoke VPCs have allow-admin firewall rules"
+  names = ['%s_subnets' %
+           name for name in ('hub', 'spoke_1', 'spoke_2')]
+  source_ranges = []
+  for name in names:
+    subnets = plan.variables[name]
+    for subnet in subnets:
+      source_ranges.append(subnet['subnet_ip'])
+  for mod in firewall_modules.values():
+    allow_admins_resource = mod.resources['google_compute_firewall.allow-admins[0]']
+    allow_ssh = mod.resources['google_compute_firewall.allow-tag-ssh[0]']
+    assert allow_admins_resource['values']['source_ranges'] == source_ranges
+    assert allow_ssh['values']['source_ranges'] == ['0.0.0.0/0']

tests/infrastructure/hub-and-spoke-vpns/test_outputs.py

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+# Copyright 2019 Google LLC
+#
+# 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
+#
+#     https://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.
+
+"Test root module outputs."
+
+
+def test_hub_outputs(plan):
+  "Hub VPC ranges and regions should match input variables."
+  hub_output = plan.outputs['hub']
+  for hub_subnet in plan.variables['hub_subnets']:
+    assert hub_output['subnets_ips'][hub_subnet['subnet_name']] == hub_subnet['subnet_ip']
+    assert hub_output['subnets_regions'][hub_subnet['subnet_name']] == hub_subnet['subnet_region']
+
+
+def test_spokes_outputs(plan):
+  "Spokes VPC ranges and regions should match input variables."
+  spoke_output_tpl = ('spoke-%s')
+  spole_subnets_tpl = ('spoke_%s_subnets')
+  count = range(1, 3)
+  for i in count:
+    spoke_output = plan.outputs[spoke_output_tpl % i]
+    for spoke_subnet in plan.variables[spole_subnets_tpl % i]:
+      assert spoke_output['subnets_ips'][spoke_subnet['subnet_name']] == spoke_subnet['subnet_ip']
+      assert spoke_output['subnets_regions'][spoke_subnet['subnet_name']] == spoke_subnet['subnet_region']

tests/infrastructure/hub-and-spoke-vpns/test_vpns.py

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+# Copyright 2019 Google LLC
+#
+# 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
+#
+#     https://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.
+
+"Test firewall resources creation in root module."
+
+
+import pytest
+
+
+@pytest.fixture(scope='module')
+def spoke_to_hub_vpn(plan):
+  count = range(1,3)
+  names = ['module.vpn-spoke-%s-to-hub' % i for i in count]
+  return dict((name, plan.modules[name]) for name in names)
+
+
+@pytest.fixture(scope='module')
+def hub_to_spoke_vpn(plan):
+  count = range(1,3)
+  var_names = ['spoke_%s_bgp_asn' % i for i in count]
+  names = ['module.vpn-hub-to-spoke-%s' % i for i in count]
+  return var_names, [plan.modules[name] for name in names]
+
+
+def test_spokes_peer_asn(plan, spoke_to_hub_vpn):
+  "Test that the spoke-to-hub VPNs mach input variables"
+  hub_bgp_asn = plan.variables['hub_bgp_asn']
+  for mod in spoke_to_hub_vpn.values():
+    spoke_bgp_peer = mod.resources['google_compute_router_peer.bgp_peer[0]']
+    assert spoke_bgp_peer['values']['peer_asn'] == hub_bgp_asn
+
+
+def test_hub_peer_asns(plan, hub_to_spoke_vpn):
+  "Test that the hub-to-spoke VPNs mach input variables"
+  count = range(1,3)
+  var_names, mods = hub_to_spoke_vpn
+  for var_name, mod in zip(var_names, mods):
+    hub_bgp_peer = mod.resources['google_compute_router_peer.bgp_peer[0]']
+    spoke_bgp_asn = plan.variables[var_name]
+    assert hub_bgp_peer['values']['peer_asn'] == spoke_bgp_asn