Adding OpenShift functional tests for kompose up/down

* This PR adds functional tests for kompose up/down. The test scripts
are hosted under script/test_in_openshift. The directory structure,
as follows:

	script/test_in_openshift/
	├── compose-files
	│   └── docker-compose-command.yml
	├── lib.sh
	├── run.sh
	└── tests
		├── buildconfig.sh
    		├── entrypoint-command.sh
    		├── etherpad.sh
    		└── redis-replica-2.sh

* script/test_in_openshift/run.sh is the master script
  which executes all the tests

* script/test_in_openshift/lib.sh consists of helper functions
  for `kompose up` and `kompose down` checks

* script/test_in_openshift/tests directory consists of test scripts

* The scripts use 'oc cluster up' for setting up a single-machine
  OpenShift cluster. It exits if oc binaries are not installed

* Most of the docker compose files used are the ones already
  available in examples/ or script/test/fixtures.

* How to run the tests: 'make test-openshift'

script/test_in_openshift/tests/buildconfig.sh

@@ -0,0 +1,35 @@
+#!/bin/bash
+# Copyright 2017 The Kubernetes Authors.
+#
+# 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.
+
+# Test case for buildconfig on kompose
+
+KOMPOSE_ROOT=$(readlink -f $(dirname "${BASH_SOURCE}")/../../..)
+source $KOMPOSE_ROOT/script/test/cmd/lib.sh
+source $KOMPOSE_ROOT/script/test_in_openshift/lib.sh
+
+convert::print_msg "Testing buildconfig on kompose"
+
+docker_compose_file="${KOMPOSE_ROOT}/examples/buildconfig/docker-compose.yml"
+
+# Run kompose up
+convert::kompose_up $docker_compose_file
+
+# Check if the pods are up.
+convert::kompose_up_check -p foo
+
+# Kompose down for buildconfig fails being tracked at #382
+# convert::kompose_down $docker_compose_file
+
+# convert::kompose_down_check 2

script/test_in_openshift/tests/entrypoint-command.sh

@@ -0,0 +1,35 @@
+#!/bin/bash
+
+# Copyright 2017 The Kubernetes Authors.
+#
+# 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.
+
+
+KOMPOSE_ROOT=$(readlink -f $(dirname "${BASH_SOURCE}")/../../..)
+source $KOMPOSE_ROOT/script/test/cmd/lib.sh
+source $KOMPOSE_ROOT/script/test_in_openshift/lib.sh
+
+convert::print_msg "Running tests with entrypoint/command option"
+
+docker_compose_file="${KOMPOSE_ROOT}/script/test_in_openshift/compose-files/docker-compose-command.yml"
+
+# Run kompose up
+convert::kompose_up $docker_compose_file
+
+convert::kompose_up_check -p 'base1 base2'
+
+# Run Kompose down
+convert::kompose_down $docker_compose_file
+
+convert::kompose_down_check 2
+

script/test_in_openshift/tests/etherpad.sh

@@ -0,0 +1,39 @@
+#!/bin/bash
+
+# Copyright 2017 The Kubernetes Authors.
+#
+# 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.
+
+# Test case for kompose up/down with etherpad
+
+KOMPOSE_ROOT=$(readlink -f $(dirname "${BASH_SOURCE}")/../../..)
+source $KOMPOSE_ROOT/script/test/cmd/lib.sh
+source $KOMPOSE_ROOT/script/test_in_openshift/lib.sh
+
+convert::print_msg "Testing kompose up/down with etherpad docker-compose file"
+
+# Env variables for etherpad
+export $(cat ${KOMPOSE_ROOT}/script/test/fixtures/etherpad/envs)
+
+docker_compose_file="${KOMPOSE_ROOT}/script/test/fixtures/etherpad/docker-compose.yml"
+
+# Run kompose up
+convert::kompose_up $docker_compose_file
+
+# Check if the pods are up
+convert::kompose_up_check -p "etherpad mariadb"
+
+# Run Kompose down
+convert::kompose_down $docker_compose_file
+
+convert::kompose_down_check 2

script/test_in_openshift/tests/redis-replica-2.sh

@@ -0,0 +1,40 @@
+#!/bin/bash
+
+# Copyright 2017 The Kubernetes Authors.
+#
+# 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.
+
+# Test case for checking replicas option with kompose
+
+KOMPOSE_ROOT=$(readlink -f $(dirname "${BASH_SOURCE}")/../../..)
+source $KOMPOSE_ROOT/script/test/cmd/lib.sh
+source $KOMPOSE_ROOT/script/test_in_openshift/lib.sh
+
+convert::print_msg "Running tests for replica option"
+
+# Run kompose up
+kompose --provider=openshift --emptyvols --replicas 2 -f ${KOMPOSE_ROOT}/examples/docker-compose-counter.yaml up; exit_status=$?
+
+if [ $exit_status -ne 0 ]; then
+    convert::print_fail "kompose up has failed"
+    exit 1
+fi
+
+
+# Check if redis and web pods are up. Replica count: 2
+convert::kompose_up_check -p "redis web" -r 2
+
+# Run Kompose down
+convert::kompose_down ${KOMPOSE_ROOT}/examples/docker-compose-counter.yaml
+
+convert::kompose_down_check 4