Add integration test for cluster creation in private subnet

tests/integration-tests/tests/networking/test_cluster_networking.py

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+# Copyright 2019 Amazon.com, Inc. or its affiliates. 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.
+# A copy of the License is located at
+#
+# http://aws.amazon.com/apache2.0/
+#
+# or in the "LICENSE.txt" file accompanying this file.
+# This file is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, express or implied.
+# See the License for the specific language governing permissions and limitations under the License.
+import pytest
+from assertpy import assert_that
+from utils import get_compute_nodes_instance_ids
+
+
+@pytest.mark.dimensions("us-west-2", "c5.xlarge", "alinux2", "slurm")
+@pytest.mark.dimensions("eu-west-2", "c5.xlarge", "centos7", "sge")
+@pytest.mark.usefixtures("os", "scheduler", "instance")
+def test_cluster_in_private_subnet(region, pcluster_config_reader, clusters_factory):
+    # This test just creates a cluster in the private subnet and just checks that no failures occur
+    cluster_config = pcluster_config_reader()
+    cluster = clusters_factory(cluster_config)
+    assert_that(cluster).is_not_none()
+
+    assert_that(len(get_compute_nodes_instance_ids(cluster.cfn_name, region))).is_equal_to(1)

tests/integration-tests/tests/networking/test_cluster_networking/test_cluster_in_private_subnet/pcluster.config.ini

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+[global]
+cluster_template = default
+
+[aws]
+aws_region_name = {{ region }}
+
+[cluster default]
+base_os = {{ os }}
+key_name = {{ key_name }}
+vpc_settings = parallelcluster-vpc
+scheduler = {{ scheduler }}
+master_instance_type = {{ instance }}
+compute_instance_type = {{ instance }}
+initial_queue_size = 1
+max_queue_size = 1
+maintain_initial_size = false
+
+
+[vpc parallelcluster-vpc]
+vpc_id = {{ vpc_id }}
+master_subnet_id = {{ private_subnet_id }}
+compute_subnet_id = {{ private_subnet_id }}
+use_public_ips=false