Add k8s app test for per-commit job

Scenario:
            1. Create murano environment
            2. Create session for create environment.
            3. Initialize k8s cluster parameters and add app to env.
            4. Initialize k8s pod parameters and add app to env.
            5. Deploy session.
            7. Check env status and port availability on k8s master node.
            8. Get k8s minions' ips and check that correct initial number
            of them was created and k8s api port is available on them.
            9. Run 'scaleNodesUp' action for k8s minions.
            10. Check that number of minions was increased and
            k8s api port is available on all of them
            11. Run 'scaleNodesDown' action for k8s minions.
            12. Check that number of minions was decreased and
            k8s api port is available on all of them

Change-Id: I63bf61b6f9e5fd45b8e6bde0fab87da5826bedc6

.gitignore

@@ -0,0 +1,10 @@
+tests/*.py[cod]
+
+# Mr Developer
+.idea
+
+# Linux swap file
+*.swp
+
+# Tests results
+.tox

test-requirements.txt

@@ -0,0 +1,6 @@
+testtools
+requests
+paramiko
+python-muranoclient
+python-heatclient
+python-novaclient

tests/base.py

@@ -0,0 +1,570 @@
+# Copyright (c) 2016 Mirantis Inc.
+#
+# 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 json
+import logging
+import os
+import socket
+import shutil
+import time
+import uuid
+
+import paramiko
+import requests
+import testtools
+import yaml
+import muranoclient.common.exceptions as exceptions
+
+import clients
+
+ARTIFACTS_DIR = os.environ.get('ARTIFACTS_DIR', 'artifacts')
+
+LOG = logging.getLogger(__name__)
+LOG.setLevel(logging.DEBUG)
+if not os.path.exists(ARTIFACTS_DIR):
+    os.makedirs(ARTIFACTS_DIR)
+fh = logging.FileHandler(os.path.join(ARTIFACTS_DIR, 'runner.log'))
+formatter = logging.Formatter(
+    '%(asctime)s - %(name)s - %(levelname)s - %(message)s'
+)
+fh.setFormatter(formatter)
+LOG.addHandler(fh)
+
+ch = logging.StreamHandler()
+ch.setLevel(logging.DEBUG)
+ch.setFormatter(formatter)
+LOG.addHandler(ch)
+
+# Sometimes need to pass some boolean from bash env. Since each bash
+# variable is string, we need such simply hack
+_boolean_states = {
+    '1': True, 'yes': True, 'true': True, 'on': True,
+    '0': False, 'no': False, 'false': False, 'off': False
+}
+
+def str2bool(name, default):
+    value = os.environ.get(name, '')
+    return _boolean_states.get(value.lower(), default)
+
+TIMEOUT_DELAY = 30
+
+
+class MuranoTestsBase(testtools.TestCase, clients.ClientsBase):
+
+    def setUp(self):
+        super(MuranoTestsBase, self).setUp()
+        self.os_username = os.environ.get('OS_USERNAME')
+        self.os_password = os.environ.get('OS_PASSWORD')
+        self.os_tenant_name = os.environ.get('OS_TENANT_NAME')
+        self.os_auth_uri = os.environ.get('OS_AUTH_URL')
+
+        self.keystone = self.initialize_keystone_client()
+        self.heat = self.initialize_heat_client(self.keystone)
+        self.murano = self.initialize_murano_client(self.keystone)
+        self.nova = self.initialize_nova_client(self.keystone)
+
+        # Since its really useful to debug deployment after it fails lets
+        # add such possibility
+        self.os_cleanup_before = str2bool('OS_CLEANUP_BEFORE', True)
+        self.os_cleanup_after = str2bool('OS_CLEANUP_AFTER', False)
+
+        if self.os_cleanup_before:
+            self.cleanup_up_tenant()
+
+        # Counter for murano deployment logger
+        self.latest_report = 0
+
+        # Application instance parameters
+        self.flavor = os.environ.get('OS_FLAVOR', 'm1.medium')
+        self.k8s_image = os.environ.get('OS_KUBERNETES_IMAGE')
+        self.k8s_image_user = os.environ.get(
+            'OS_KUBERNETES_IMAGE_USER', 'debian'
+        )
+        self.files = []
+        self.keyname, self.pr_key, self.pub_key = self._create_keypair()
+        self.availability_zone = os.environ.get('OS_ZONE', 'nova')
+
+        self.envs = []
+
+        LOG.info('Running test: {0}'.format(self._testMethodName))
+
+    def tearDown(self):
+        for env in self.envs:
+            self._collect_murano_agent_logs(env)
+        if self.os_cleanup_after:
+            for env in self.envs:
+                try:
+                    self.delete_env(env)
+                except Exception:
+                    self.delete_stack(env)
+            self.nova.keypairs.delete(self.keyname)
+            for file in self.files:
+                if os.path.isfile(file):
+                    os.remove(file)
+                elif os.path.isdir(file):
+                    shutil.rmtree(file)
+
+        super(MuranoTestsBase, self).tearDown()
+
+    @staticmethod
+    def rand_name(name='murano_ci_test_'):
+        return name + str(time.strftime("%Y_%m_%d_%H_%M_%S"))
+
+    @staticmethod
+    def generate_id():
+        return uuid.uuid4()
+
+    def create_file(self, name, context):
+        with open(name, 'w') as f:
+            f.write(context)
+        path_to_file = os.path.join(os.getcwd(), name)
+        self.files.append(path_to_file)
+        return path_to_file
+
+    def cleanup_up_tenant(self):
+        LOG.debug('Removing EVERYTHING in tenant: {0}'.format(
+            self.keystone.tenant_name))
+        for env in self.murano.environments.list():
+            self.delete_env(env)
+            self.delete_stack(env)
+        for key in self.nova.keypairs.list():
+            if key.name.startswith("murano_ci_keypair"):
+                self.nova.keypairs.delete(key)
+        return
+
+    def get_deployment_report(self, environment, deployment):
+        history = ''
+        report = self.murano.deployments.reports(environment.id, deployment.id)
+        for status in report:
+            history += '\t{0} - {1}\n'.format(status.created, status.text)
+        return history
+
+    def _log_report(self, environment):
+        deployment = self.murano.deployments.list(environment.id)[0]
+        details = deployment.result['result']['details']
+        LOG.error('Exception found:\n {0}'.format(details))
+        report = self.get_deployment_report(environment, deployment)
+        LOG.debug('Report:\n {0}\n'.format(report))
+
+    def _log_latest(self, environment):
+        deployment = self.murano.deployments.list(environment.id)[0]
+        history = self.get_deployment_report(environment, deployment)
+        if self.latest_report != len(history) or self.latest_report == 0:
+            tmp = len(history)
+            history = history[self.latest_report:]
+            LOG.debug("Last report from murano engine:\n{}".format((history)))
+            self.latest_report = tmp
+            return history
+
+    def _collect_murano_agent_logs(self, environment):
+        fips = self.get_services_fips(environment)
+        logs_dir = "{0}/{1}".format(ARTIFACTS_DIR, environment.name)
+        os.makedirs(logs_dir)
+        for service, fip in fips.iteritems():
+            try:
+                ssh = paramiko.SSHClient()
+                ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
+                ssh.connect(
+                    fip,
+                    username=self.k8s_image_user,
+                    key_filename=self.pr_key
+                )
+                ftp = ssh.open_sftp()
+                ftp.get(
+                    '/var/log/murano-agent.log',
+                    os.path.join(logs_dir, '{0}-agent.log'.format(service))
+                )
+                ftp.close()
+            except Exception as e:
+                LOG.warning(
+                    "Couldn't collect murano-agent "
+                    "logs of {0} (IP: {1}): {2}".format(service, fip, e)
+                )
+
+    def _create_keypair(self):
+        kp_name = self.rand_name('murano_ci_keypair_')
+        keypair = self.nova.keypairs.create(kp_name)
+        pr_key_file = self.create_file(
+            'id_{}'.format(kp_name), keypair.private_key
+        )
+        # Note: by default, permissions of created file with
+        # private keypair is too open
+        os.chmod(pr_key_file, 0600)
+
+        pub_key_file = self.create_file(
+            'id_{}.pub'.format(kp_name), keypair.public_key
+        )
+        return kp_name, pr_key_file, pub_key_file
+
+    def _get_stack(self, environment_id):
+        for stack in self.heat.stacks.list():
+            if environment_id in stack.description:
+                return stack
+
+    def delete_stack(self, environment):
+        stack = self._get_stack(environment.id)
+        if not stack:
+            return
+        else:
+            try:
+                self.heat.stacks.delete(stack.id)
+            except Exception as e:
+                LOG.warning("Unable delete stack:{}".format(stack))
+                LOG.exception(e)
+                pass
+
+    def create_env(self):
+        name = self.rand_name()
+        environment = self.murano.environments.create({'name': name})
+        self.envs.append(environment)
+        if self.os_cleanup_after:
+            self.addCleanup(self.delete_env, environment)
+        LOG.debug('Created Environment:\n {0}'.format(environment))
+
+        return environment
+
+    def delete_env(self, environment, timeout=360):
+        try:
+            self.murano.environments.delete(environment.id)
+            start_time = time.time()
+            while time.time() - start_time < timeout:
+                try:
+                    self.murano.environments.get(environment.id)
+                    time.sleep(1)
+                except exceptions.HTTPNotFound:
+                    return
+            raise exceptions.HTTPOverLimit(
+                'Environment "{0}" was not deleted in {1} seconds'.format(
+                    environment.id, timeout)
+            )
+        except (exceptions.HTTPForbidden, exceptions.HTTPOverLimit,
+                exceptions.HTTPNotFound):
+            try:
+                self.murano.environments.delete(environment.id, abandon=True)
+                LOG.warning(
+                    'Environment "{0}" from test {1} abandoned'.format(
+                        environment.id, self._testMethodName))
+            except exceptions.HTTPNotFound:
+                return
+
+        start_time = time.time()
+        while time.time() - start_time < timeout:
+            try:
+                self.murano.environments.get(environment.id)
+                time.sleep(1)
+            except exceptions.HTTPNotFound:
+                return
+        raise Exception(
+            'Environment "{0}" was not deleted in {1} seconds'.format(
+                environment.id, timeout)
+        )
+
+    def get_env(self, environment):
+        return self.murano.environments.get(environment.id)
+
+    def deploy_env(self, environment, session):
+        self.murano.sessions.deploy(environment.id, session.id)
+        return self.wait_for_environment_deploy(environment)
+
+    def wait_for_environment_deploy(self, env, timeout=7200):
+        start_time = time.time()
+        status = self.get_env(env).manager.get(env.id).status
+
+        while status != 'ready':
+            status = self.get_env(env).manager.get(env.id).status
+            LOG.debug('Deployment status:{}...nothing new..'.format(status))
+            self._log_latest(env)
+
+            if time.time() - start_time > timeout:
+                time.sleep(60)
+                self.fail(
+                    'Environment deployment wasn\'t'
+                    'finished in {} seconds'.format(self.timeout)
+                )
+            elif status == 'deploy failure':
+                self._log_report(env)
+                self.fail(
+                    'Environment has incorrect status "{0}"'.format(status)
+                )
+
+            time.sleep(TIMEOUT_DELAY)
+        LOG.debug('Environment "{0}" is ready'.format(self.get_env(env).name))
+        return self.get_env(env).manager.get(env.id)
+
+    def create_session(self, environment):
+        return self.murano.sessions.configure(environment.id)
+
+    def create_service(self, environment, session, json_data, to_json=True):
+        LOG.debug('Adding service:\n {0}'.format(json_data))
+        service = self.murano.services.post(
+            environment.id,
+            path='/',
+            data=json_data,
+            session_id=session.id
+        )
+        if to_json:
+            service = service.to_dict()
+            service = json.dumps(service)
+            LOG.debug('Create Service json: {0}'.format(yaml.load(service)))
+            return yaml.load(service)
+        else:
+            LOG.debug('Create Service: {0}'.format(service))
+            return service
+
+    @staticmethod
+    def guess_fip(env_obj_model):
+
+        result = {}
+
+        def _finditem(obj, result):
+            if 'floatingIpAddress' in obj.get('instance', []):
+                result[obj['?']['package']] = obj['instance'][
+                    'floatingIpAddress']
+            for k, v in obj.items():
+                if isinstance(v, dict):
+                    _finditem(v, result)
+        _finditem(env_obj_model, result)
+
+        return result
+
+    def get_services_fips(self, environment):
+        fips = {}
+        for service in environment.services:
+            fips.update(self.guess_fip(service))
+
+        return fips
+
+    def check_ports_open(self, ip, ports):
+        for port in ports:
+            result = 1
+            start_time = time.time()
+            while time.time() - start_time < 60:
+                sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
+                result = sock.connect_ex((str(ip), port))
+                sock.close()
+
+                if result == 0:
+                    LOG.debug('{} port is opened on instance'.format(port))
+                    break
+                time.sleep(5)
+
+            if result != 0:
+                self.fail('{} port is not opened on instance'.format(port))
+
+    def check_url_access(self, ip, path, port):
+        proto = 'http' if port not in (443, 8443) else 'https'
+        url = '{proto}://{ip}:{port}/{path}'.format(
+            proto=proto,
+            ip=ip,
+            port=port,
+            path=path
+        )
+
+        resp = requests.get(url, timeout=60)
+
+        return resp.status_code
+
+    def deployment_success_check(self, environment, services_map):
+        deployment = self.murano.deployments.list(environment.id)[-1]
+
+        self.assertEqual(
+            'success', deployment.state,
+            'Deployment status is "{0}"'.format(deployment.state)
+        )
+
+        fips = self.get_services_fips(environment)
+
+        for service in services_map:
+            LOG.debug(
+                'Checking ports availability on "{}" app instance'.format(
+                    service)
+                )
+            self.check_ports_open(
+                fips[service], services_map[service]['ports']
+            )
+            if services_map[service]['url']:
+                LOG.debug(
+                    'Checking {0} app url "{1}" availability'.format(
+                        service, services_map[service]['url']
+                    )
+                )
+                self.check_url_access(
+                    fips[service],
+                    services_map[service]['url'],
+                    services_map[service]['url_port']
+                )
+
+    def wait_for(self, func, expected, debug_msg, fail_msg, timeout, **kwargs):
+        def check(exp, cur):
+            if isinstance(cur, list) or isinstance(cur, str):
+                return exp not in cur
+            else:
+                return exp != cur
+
+        LOG.debug(debug_msg)
+        start_time = time.time()
+
+        current = func(**kwargs)
+
+        while check(expected, current):
+            current = func(**kwargs)
+
+            if time.time() - start_time > timeout:
+                self.fail("Time is out. {0}".format(fail_msg))
+            time.sleep(TIMEOUT_DELAY)
+        LOG.debug('Expected result has been achieved.')
+
+    def create_k8s_cluster(self, params):
+        gateways = []
+
+        for gateway_num in range(params['max_gateways']):
+            gateways.append(
+            {
+                "instance": {
+                    "name": "gateway-{0}".format(gateway_num),
+                    "assignFloatingIp": True,
+                    "keyname": params['keypair_name'],
+                    "flavor": params['flavor'],
+                    "image": params['kubernetes_image'],
+                    "availabilityZone": 'nova',
+                    "?": {
+                        "type": "io.murano.resources.LinuxMuranoInstance",
+                        "id": str(uuid.uuid4())
+                    }
+                },
+                "?": {
+                    "type": "com.mirantis.docker.kubernetes."
+                            "KubernetesGatewayNode",
+                    "id": str(uuid.uuid4())
+                }
+            })
+
+        minions = []
+
+        for minion_num in range(params['max_nodes']):
+            minions.append(
+                {
+                "instance": {
+                    "name": "minion-{0}".format(minion_num),
+                    "assignFloatingIp": True,
+                    "keyname": params['keypair_name'],
+                    "flavor": params['flavor'],
+                    "image": params['kubernetes_image'],
+                    "availabilityZone": 'nova',
+                    "?": {
+                        "type": "io.murano.resources.LinuxMuranoInstance",
+                        "id": str(uuid.uuid4())
+                    }
+                },
+                "?": {
+                    "type": "com.mirantis.docker.kubernetes."
+                            "KubernetesMinionNode",
+                    "id": str(uuid.uuid4())
+                },
+                "exposeCAdvisor": params['cadvisor']
+            })
+
+        k8s_cluster_json = {
+            "gatewayCount": params['initial_gateways'],
+            "gatewayNodes": gateways,
+            "?": {
+                "_{id}".format(id=uuid.uuid4().hex): {
+                    "name": "Kubernetes Cluster"
+                },
+                "type": "com.mirantis.docker.kubernetes.KubernetesCluster",
+                "id": str(uuid.uuid4())
+            },
+            "nodeCount": params['initial_nodes'],
+            "dockerRegistry": "",
+            "gcloudKey": "",
+            "dockerMirror": "",
+            "masterNode": {
+                "instance": {
+                    "name": "master-1",
+                    "assignFloatingIp": True,
+                    "keyname": params["keypair_name"],
+                    "flavor": params["flavor"],
+                    "image": params["kubernetes_image"],
+                    "availabilityZone": 'nova',
+                    "?": {
+                        "type": "io.murano.resources.LinuxMuranoInstance",
+                        "id": str(uuid.uuid4())
+                    }
+                },
+                "?": {
+                    "type": "com.mirantis.docker.kubernetes."
+                            "KubernetesMasterNode",
+                    "id": str(uuid.uuid4())
+                }
+            },
+            "minionNodes": minions,
+            "name": "KubeClusterTest"
+        }
+
+        print k8s_cluster_json
+
+        return k8s_cluster_json
+
+    def create_k8s_pod(self, k8s_cluster, params):
+        k8s_pod_json = {
+            "kubernetesCluster": k8s_cluster,
+            "labels": params['labels'],
+            "name": "testpod",
+            "replicas": params['replicas'],
+            "?": {
+                "_{id}".format(id=uuid.uuid4().hex): {
+                    "name": "Kubernetes Pod"
+                },
+                "type": "com.mirantis.docker.kubernetes.KubernetesPod",
+                "id": str(uuid.uuid4())
+            }
+        }
+
+        return k8s_pod_json
+
+    def get_k8s_instances(self, env):
+        def _get_instance_fip(server_id):
+            for _, addr in self.nova.servers.get(server_id).addresses.values():
+                if addr["OS-EXT-IPS:type"] == "floating":
+                    return addr["addr"]
+
+        k8s_instances = {'gateways': [], 'minions': []}
+
+        stack = self._get_stack(env.id)
+
+        for res in self.heat.resources.list(stack.id):
+            if res.resource_type == "OS::Nova::Server":
+                if "gateway" in res.resource_name:
+                    k8s_instances['gateways'].append(
+                        _get_instance_fip(res.physical_resource_id)
+                    )
+                if "minion" in res.resource_name:
+                    k8s_instances['minions'].append(
+                        _get_instance_fip(res.physical_resource_id)
+                    )
+
+        return k8s_instances
+
+
+    def run_k8s_action(self, environment, action):
+        def _get_action_id(environment, name):
+            env_data = environment.to_dict()
+            a_dict = env_data['services'][0]['?']['_actions']
+            for action_id, action in a_dict.items():
+                if action['name'] == name:
+                    return action_id
+
+        action_id = _get_action_id(environment, action)
+        self.murano.actions.call(environment.id, action_id)

tests/clients.py

@@ -0,0 +1,101 @@
+# Copyright (c) 2016 Mirantis Inc.
+#
+# 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 os
+
+from heatclient import client as heatclient
+from keystoneclient.v2_0 import client as keystoneclient
+from muranoclient import client as muranoclient
+from novaclient import client as novaclient
+
+
+class ClientsBase(object):
+
+    @staticmethod
+    def initialize_keystone_client():
+        username = os.environ.get('OS_USERNAME')
+        password = os.environ.get('OS_PASSWORD')
+        tenant_name = os.environ.get('OS_TENANT_NAME')
+        auth_url = os.environ.get('OS_AUTH_URL')
+
+        keystone = keystoneclient.Client(
+            username=username,
+            password=password,
+            tenant_name=tenant_name,
+            auth_url=auth_url
+        )
+        return keystone
+
+    @classmethod
+    def get_endpoint(cls, service_type, endpoint_type):
+        ks_client = cls.initialize_keystone_client()
+
+        return ks_client.service_catalog.url_for(
+            service_type=service_type,
+            endpoint_type=endpoint_type
+        )
+
+    @classmethod
+    def initialize_murano_client(cls, auth_client=None):
+        ks_client = (auth_client if auth_client
+                     else cls.initialize_keystone_client())
+
+        murano_endpoint = cls.get_endpoint(
+            service_type='application-catalog',
+            endpoint_type='publicURL'
+        )
+
+        murano = muranoclient.Client(
+            '1',
+            endpoint=murano_endpoint,
+            token=ks_client.auth_token
+        )
+
+        return murano
+
+    @classmethod
+    def initialize_heat_client(cls, auth_client=None):
+        ks_client = (auth_client if auth_client
+                     else cls.initialize_keystone_client())
+
+        heat_endpoint = cls.get_endpoint(
+            service_type='orchestration',
+            endpoint_type='publicURL'
+        )
+
+        heat = heatclient.Client(
+            '1',
+            endpoint=heat_endpoint,
+            token=ks_client.auth_token
+        )
+
+        return heat
+
+    @classmethod
+    def initialize_nova_client(cls, auth_client=None):
+        ks_client = (auth_client if auth_client
+                     else cls.initialize_keystone_client())
+
+        nova = novaclient.Client(
+            '2',
+            username=None,
+            service_type='compute',
+            endpoint_type='publicURL',
+            auth_token=ks_client.auth_token,
+            auth_url=ks_client.auth_url
+        )
+        nova.client.management_url = cls.get_endpoint('compute', 'publicURL')
+
+        return nova

tests/test_k8s_app.py

@@ -0,0 +1,131 @@
+# Copyright (c) 2016 Mirantis Inc.
+#
+# 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 base
+
+
+class MuranoK8sTest(base.MuranoTestsBase):
+
+    def test_deploy_scale_k8s(self):
+        """Check that it is possible to deploy K8s application and scale it
+
+        Scenario:
+            1. Create murano environment
+            2. Create session for create environment.
+            3. Initialize k8s cluster parameters and add app to env.
+            4. Initialize k8s pod parameters and add app to env.
+            5. Deploy session.
+            7. Check env status and port availability on k8s master node.
+            8. Get k8s minions' ips and check that correct initial number
+            of them was created and k8s api port is available on them.
+            9. Run 'scaleNodesUp' action for k8s minions.
+            10. Check that number of minions was increased and
+            k8s api port is available on all of them
+            11. Run 'scaleNodesDown' action for k8s minions.
+            12. Check that number of minions was decreased and
+            k8s api port is available on all of them
+        """
+
+        # Create murano environment
+        environment = self.create_env()
+
+        # Create session for create environment.
+        session = self.create_session(environment)
+
+        # Initialize k8s cluster parameters and add app to env
+        k8s_cluster_json = self.create_k8s_cluster(
+            {
+                'initial_nodes': 1,
+                'max_nodes': 2,
+                'initial_gateways': 1,
+                'max_gateways': 1,
+                'cadvisor': True,
+                'keypair_name': self.keyname,
+                'flavor': self.flavor,
+                'kubernetes_image': self.k8s_image
+            }
+        )
+        k8s_cluster = self.create_service(
+            environment,
+            session,
+            k8s_cluster_json
+        )
+
+        # Initialize k8s pod parameters and add app to env.
+        k8s_pod_json = self.create_k8s_pod(
+            k8s_cluster,
+            {
+                'labels': 'testkey=testvalue',
+                'replicas': 2,
+            }
+        )
+        self.create_service(environment, session, k8s_pod_json)
+
+        # Deploy session.
+        self.deploy_env(environment, session)
+
+        # Check env status and port availability on k8s master node.
+        environment = self.get_env(environment)
+
+        check_services = {
+            'com.mirantis.docker.kubernetes.KubernetesCluster': {
+                'ports': [8080, 22],
+                'url': 'api/',
+                'url_port': 8080
+            }
+        }
+        self.deployment_success_check(environment, check_services)
+
+        # Get k8s minions' ips and check that correct initial number
+        # of them was created and k8s api port is available on them.
+        minions_ips = self.get_k8s_instances(environment)['minions']
+        self.assertEqual(1, len(minions_ips))
+
+        for ip in minions_ips:
+            self.check_ports_open(ip, [4194])
+
+        # Run 'scaleNodesUp' action for k8s minions.
+        self.run_k8s_action(
+            environment=environment,
+            action='scaleNodesUp'
+        )
+        self.wait_for_environment_deploy(environment)
+
+        # Check that number of minions was increased and
+        # k8s api port is available on all of them
+        environment = self.get_env(environment)
+
+        minions_ips = self.get_k8s_instances(environment)['minions']
+        self.assertEqual(2, len(minions_ips))
+
+        for ip in minions_ips:
+            self.check_ports_open(ip, [4194])
+
+        # Run 'scaleNodesDown' action for k8s minions.
+        self.run_k8s_action(
+            environment=environment,
+            action='scaleNodesDown'
+        )
+        self.wait_for_environment_deploy(environment)
+
+        # Check that number of minions was increased and
+        # k8s api port is available on all of them
+        environment = self.get_env(environment)
+
+        minions_ips = self.get_k8s_instances(environment)['minions']
+        self.assertEqual(1, len(minions_ips))
+
+        for ip in minions_ips:
+            self.check_ports_open(ip, [4194])

tox.ini

@@ -0,0 +1,20 @@
+[tox]
+minversion = 1.6
+skipsdist = True
+skip_missing_interpreters = True
+
+[testenv]
+setenv = VIRTUAL_ENV={envdir}
+         LANG=en_US.UTF-8
+         LANGUAGE=en_US:en
+         LC_ALL=C
+passenv = OS_* MURANO* *ENDPOINT*
+deps=
+    -r{toxinidir}/test-requirements.txt
+distribute = false
+
+[testenv:venv]
+commands = {posargs:}
+
+[testenv:deploy_scale_k8s]
+commands = python -m unittest tests.test_k8s_app.MuranoK8sTest.test_deploy_scale_k8s