Custom graphs deployment

Check that graphs are isolated and generated
from release and cluster tasks.

Change-Id: Ie4454e742693dda8452ec9db90a6eafa8b97d42d
Closes-bug: #1567519
(cherry picked from commit b992294505)

doc/base_tests.rst

@@ -76,8 +76,19 @@ Test custom hostname
 .. automodule:: fuelweb_test.tests.test_custom_hostname
    :members:
 
+Test custom graph
+-----------------
+.. automodule:: fuelweb_test.tests.tests_custom_graph.test_custom_graph
+   :members:
+
+
+Prepare target image file
+-------------------------
+.. automodule:: fuelweb_test.config_templates.prepare_release_image
+   :members:
+
 Test DPDK
---------------------
+---------
 .. automodule:: fuelweb_test.tests.test_dpdk
    :members:
 

fuelweb_test/config_templates/custom_graph_tasks.yaml

@@ -0,0 +1,27 @@
+- id: custom_task_on_controller
+  type: shell
+  version: 2.0.0
+  role: ['/(primary-)?controller/']
+  parameters:
+    cmd: 'echo "controller" >> /tmp/custom_task_log'
+
+- id: custom_task_on_compute
+  type: shell
+  version: 2.0.0
+  role: ['compute']
+  parameters:
+    cmd: 'echo "compute" >> /tmp/custom_task_log'
+
+- id: custom_task_on_cinder
+  type: shell
+  version: 2.0.0
+  role: ['cinder']
+  parameters:
+    cmd: 'echo "cinder" >> /tmp/custom_task_log'
+
+- id: custom_task_on_ceph-osd
+  type: shell
+  version: 2.0.0
+  role: ['ceph-osd']
+  parameters:
+    cmd: 'echo "ceph-osd" >> /tmp/custom_task_log'

fuelweb_test/config_templates/custom_yaql_tasks.yaml

@@ -0,0 +1,9 @@
+- id: custom_task_on_all_nodes
+  type: shell
+  version: 2.0.0
+  condition:
+    yaql_exp: '$.uid in added($.nodes).uid'
+  role: ['/.*/']
+  requires: ['custom_task_on_controller']
+  parameters:
+    cmd: 'echo "yaql_task_on_all_nodes" >> /tmp/yaql_task_on_all_nodes'

fuelweb_test/config_templates/master_node_tasks.yaml

@@ -0,0 +1,22 @@
+- id: task_on_master_1
+  type: shell
+  version: 2.0.0
+  role: ['master']
+  required_for: ['task_on_master_2']
+  parameters:
+    cmd: 'echo 1 > /tmp/master_task'
+
+- id: task_on_master_2
+  type: shell
+  version: 2.0.0
+  role: ['master']
+  parameters:
+    cmd: 'echo 2 >> /tmp/master_task'
+
+- id: task_on_master_3
+  type: shell
+  version: 2.0.0
+  role: ['master']
+  requires: ['task_on_master_2']
+  parameters:
+    cmd: 'echo 3 >> /tmp/master_task'

fuelweb_test/config_templates/prepare_release_image.py

@@ -0,0 +1,58 @@
+#    Copyright 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.
+"""Script to prepare shell script to generate target image"""
+
+
+def execute():
+    """Function to prepare shell script to generate target image"""
+    import sys
+
+    import six
+
+    from nailgun.settings import NailgunSettings
+    from nailgun.objects.release import Release
+    from nailgun import consts
+    from nailgun.orchestrator import tasks_templates
+
+    settings = NailgunSettings()
+    master_ip = settings.config['MASTER_IP']
+    release_id = sys.argv[1]
+
+    rel = Release.get_by_uid(release_id)
+
+    packages_str = \
+        rel.attributes_metadata['editable']['provision']['packages']['value']
+    packages = list(
+        six.moves.filter(bool, (s.strip() for s in packages_str.split('\n'))))
+    task = tasks_templates.make_provisioning_images_task(
+        [consts.MASTER_NODE_UID],
+        rel.attributes_metadata['editable']['repo_setup']['repos']['value'],
+        rel.attributes_metadata['generated']['provision'],
+        'prepare_release_ubuntu',
+        packages)
+
+    release_str = 'release_{release_id}'.format(release_id=release_id)
+    with open('build_image.sh', 'w') as cmd_file:
+        cmd_file.write(task['parameters']['cmd'].replace(
+            "{cluster.release.environment_version}",
+            rel.environment_version).replace(
+                '{cluster.release.version}',
+                rel.version).replace(
+                    '{settings.MASTER_IP}',
+                    master_ip).replace(
+                        "{cluster.id}",
+                        release_str))
+
+if __name__ == '__main__':
+    execute()

fuelweb_test/config_templates/release_custom_tasks.yaml

@@ -0,0 +1,7 @@
+- id: custom_task_on_all_nodes
+  type: shell
+  version: 2.0.0
+  role: ['/.*/']
+  requires: ['custom_task_on_controller']
+  parameters:
+    cmd: 'echo "custom_task_on_all_nodes" > /tmp/custom_task_on_all_nodes'

fuelweb_test/models/fuel_web_client.py

@@ -1993,6 +1993,31 @@ class FuelWebClient(object):
         task = self.client.provision_nodes(cluster_id)
         self.assert_task_success(task, progress=progress)
 
+    @logwrap
+    def deploy_custom_graph_wait(self,
+                                 cluster_id,
+                                 graph_type,
+                                 node_ids=None,
+                                 progress=None):
+        """Deploy custom graph of a given type.
+
+        :param cluster_id: Id of a cluster to deploy
+        :param graph_type: Custom graph type to deploy
+        :param node_ids: Ids of nodes to deploy. None means all
+        :param progress: Progress at which count deployment as a success.
+        """
+        logger.info('Start cluster #{cid} custom type "{type}" '
+                    'graph deployment on nodes: {nodes}. '
+                    'None means on all nodes.'.format(
+                        cid=cluster_id,
+                        type=graph_type,
+                        nodes=node_ids
+                    ))
+        task = self.client.deploy_custom_graph(cluster_id,
+                                               graph_type,
+                                               node_ids)
+        self.assert_task_success(task, progress=progress)
+
     @logwrap
     def deploy_task_wait(self, cluster_id, progress=None):
         logger.info('Start cluster #%s deployment', cluster_id)

fuelweb_test/models/nailgun_client.py

@@ -157,6 +157,49 @@ class NailgunClient(object):
             "/api/clusters/{}/changes/".format(cluster_id)
         )
 
+    @logwrap
+    @json_parse
+    def deploy_custom_graph(self, cluster_id, graph_type, node_ids=None):
+        """Method to deploy custom graph on cluster.
+
+        :param cluster_id: Cluster to be custom deployed
+        :param graph_type: Type of a graph to deploy
+        :param node_ids: nodes to deploy. None or empty list means all.
+        :return:
+        """
+        if not node_ids:
+            nailgun_nodes = self.list_cluster_nodes(cluster_id)
+            node_ids = [str(_node['id']) for _node in nailgun_nodes]
+        return self.client.put(
+            '/api/clusters/{0}/deploy/?graph_type={1}&nodes={2}'.format(
+                cluster_id,
+                graph_type,
+                ','.join(node_ids)))
+
+    @logwrap
+    @json_parse
+    def get_release_tasks(self, release_id):
+        """Method to get release deployment tasks.
+
+        :param release_id: Id of release to get tasks
+        :return: list of deployment graphs
+        """
+        return self.client.get('/api/releases/{rel_id}/deployment_graphs/'
+                               .format(rel_id=release_id))
+
+    @logwrap
+    @json_parse
+    def get_release_tasks_by_type(self, release_id, graph_type):
+        """Method to get release deployment tasks by type.
+
+        :param release_id: Id of release to get tasks
+        :param graph_type: Type of a graph to deploy
+        :return: list of deployment graphs for a given type
+        """
+        return self.client.get(
+            "/api/releases/{0}/deployment_graphs/{1}".format(release_id,
+                                                             graph_type))
+
     @logwrap
     @json_parse
     def get_task(self, task_id):
@@ -454,6 +497,16 @@ class NailgunClient(object):
         return self.client.get(
             '/api/releases/{}/deployment_tasks'.format(release_id))
 
+    @logwrap
+    @json_parse
+    def get_custom_cluster_deployment_tasks(self, cluster_id, custom_type):
+        """ Get list of all deployment tasks for cluster."""
+        return self.client.get(
+            '/api/clusters/{}/deployment_tasks/?graph_type={}'.format(
+                cluster_id,
+                custom_type
+            ))
+
     @logwrap
     @json_parse
     def get_end_deployment_tasks(self, cluster_id, end, start=None):

fuelweb_test/tests/tests_custom_graph/test_custom_graph.py

@@ -0,0 +1,912 @@
+#    Copyright 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.
+
+"""
+That is a place for testing of custom graph.
+"""
+import os
+import re
+
+from proboscis import test
+from proboscis.asserts import assert_equal
+import yaml
+
+import fuelweb_test
+from fuelweb_test.helpers.decorators import log_snapshot_after_test
+from fuelweb_test.settings import OPENSTACK_RELEASE_UBUNTU
+from fuelweb_test.tests.base_test_case import SetupEnvironment
+from fuelweb_test.tests.base_test_case import TestBasic
+
+
+@test(groups=['custom-graph'])
+class TestCustomGraph(TestBasic):
+    """Test to check custom graph"""
+
+    def check_tasks_on_node(self, cluster_id, node_role, expected_content):
+        """Method to check custom tasks on node.
+
+        :param cluster_id: id of a cluster to check
+        :param node_role:  role to check
+        :param expected_content: content, which should be in custom_task_log
+        :return:
+        """
+        checked_node = self.fuel_web.get_nailgun_cluster_nodes_by_roles(
+            cluster_id, [node_role])[0]
+        actual_content = self.ssh_manager.execute_on_remote(
+            ip=checked_node['ip'],
+            cmd='cat /tmp/custom_task_log',
+            raise_on_assert=False
+        )['stdout_str']
+        assert_equal(expected_content, actual_content)
+
+    def move_ubuntu_target_image(self, release_id, cluster_id):
+        """Command moves cached image file to cluster destination
+
+        :param release_id: id of release from which was built.
+        :param cluster_id: id of cluster to move to
+        :return:
+        """
+        move_img_cmd = (
+            'cp /var/www/nailgun/targetimages/env_release_{release_id}'
+            '_ubuntu_1404_amd64-boot.img.gz /var/www/nailgun/targetimages/'
+            'env_{cluster_id}_ubuntu_1404_amd64-boot.img.gz;'
+            'cp /var/www/nailgun/targetimages/env_release_{release_id}'
+            '_ubuntu_1404_amd64.img.gz /var/www/nailgun/targetimages/'
+            'env_{cluster_id}_ubuntu_1404_amd64.img.gz;'
+            'cp /var/www/nailgun/targetimages/env_release_{release_id}'
+            '_ubuntu_1404_amd64.yaml /var/www/nailgun/targetimages/'
+            'env_{cluster_id}_ubuntu_1404_amd64.yaml;'
+            'sed -i -- "s/release_2/{cluster_id}/g" '
+            '/var/www/nailgun/targetimages/env_release_{release_id}'
+            '_ubuntu_1404_amd64.yaml').format(release_id=release_id,
+                                              cluster_id=cluster_id)
+
+        self.ssh_manager.execute_on_remote(
+            ip=self.ssh_manager.admin_ip,
+            cmd=move_img_cmd)
+
+    @test(depends_on=[SetupEnvironment.prepare_release],
+          groups=['pre_provision_ubuntu_slaves_3'])
+    @log_snapshot_after_test
+    def pre_provision_ubuntu_slaves_3(self):
+        """Bootstrap 3 slave nodes with prepared target image
+
+        Scenario:
+            1. Revert snapshot "ready"
+            2. Start 3 slave nodes
+            3. Upload script to generate command
+            4. Execute script to generate command
+            5. Use command to build target image
+            6. Save snapshot 'pre_provision_ubuntu_slaves_3'
+
+        Duration 30m
+        Snapshot pre_provision_ubuntu_slaves_3
+        """
+        self.show_step(1)  # Revert snapshot "ready"
+        self.check_run('pre_provision_ubuntu_slaves_3')
+        self.env.revert_snapshot("ready", skip_timesync=True)
+
+        self.show_step(2)  # Bootstrap 3 nodes
+        self.env.bootstrap_nodes(self.env.d_env.nodes().slaves[:3],
+                                 skip_timesync=True)
+
+        self.show_step(3)  # Upload script to generate command
+        tasks_filename = 'prepare_release_image.py'
+        script_filepath = os.path.join(
+            os.path.dirname(fuelweb_test.__file__),
+            'config_templates',
+            tasks_filename)
+        upload_tasks_path = '/tmp/{}'.format(tasks_filename)
+        self.ssh_manager.upload_to_remote(
+            ip=self.ssh_manager.admin_ip,
+            source=script_filepath,
+            target=upload_tasks_path)
+
+        self.show_step(4)  # Execute script to generate command
+        release_id = self.fuel_web.get_releases_list_for_os(
+            release_name=OPENSTACK_RELEASE_UBUNTU)[0]
+        upload_tasks_cmd = 'cd /tmp && python prepare_release_image.py ' \
+                           '{release_id}'.format(release_id=release_id)
+        self.ssh_manager.execute_on_remote(
+            ip=self.ssh_manager.admin_ip,
+            cmd=upload_tasks_cmd)
+
+        self.show_step(5)  # Use command to build target image
+        upload_tasks_cmd = 'bash /tmp/build_image.sh'
+        self.ssh_manager.execute_on_remote(
+            ip=self.ssh_manager.admin_ip,
+            cmd=upload_tasks_cmd)
+
+        self.show_step(6)  # Save snapshot 'pre_provision_ubuntu_slaves_3'
+        self.env.make_snapshot('pre_provision_ubuntu_slaves_3', is_make=True)
+
+    @test(depends_on=[pre_provision_ubuntu_slaves_3],
+          groups=['custom_graph', 'graph_isolation', 'custom_graph_leakage'])
+    @log_snapshot_after_test
+    def custom_graph_leakage(self):
+        """Check tasks for custom graph are not shown in default
+
+        Scenario:
+            1. Revert snapshot 'pre_provision_ubuntu_slaves_3'
+            2. Create cluster
+            3. Add 1 node with controller role
+            4. Add 1 node with compute role
+            5. Add 1 node with storage role
+            6. Create custom graph 'custom_graph'
+            7. Upload tasks to 'custom_graph'
+            8. Download tasks for 'default' graph
+            9. Verify that there no 'custom_graph' tasks in 'default' graph
+            10. Deploy the cluster
+            11. Run network verification
+            12. Run OSTF to check services are deployed
+            13. Verify that 'custom_graph' tasks are not called on controller
+            14. Verify that 'custom_graph' tasks are not called on compute
+            15. Verify that 'custom_graph' tasks are not called on cinder
+            16. Create snapshot
+
+        Duration 90m
+        Snapshot custom_graph_leakage
+        """
+        self.show_step(1)  # Revert snapshot 'pre_provision_ubuntu_slaves_3'
+        self.env.revert_snapshot('pre_provision_ubuntu_slaves_3')
+        graph_type = 'custom_graph'
+
+        self.show_step(2)  # Create cluster
+        cluster_id = self.fuel_web.create_cluster(name=self.__class__.__name__)
+
+        self.move_ubuntu_target_image(2, cluster_id)
+
+        self.show_step(3)  # Add 1 node with controller role
+        self.show_step(4)  # Add 1 node with compute role
+        self.show_step(5)  # Add 1 node with storage role
+        self.fuel_web.update_nodes(
+            cluster_id,
+            {
+                'slave-01': ['controller'],
+                'slave-02': ['compute'],
+                'slave-03': ['cinder'],
+            }
+        )
+
+        self.show_step(6)  # Create custom graph 'custom_graph'
+        self.show_step(7)  # Upload tasks to 'custom_graph'
+        tasks_filename = 'custom_graph_tasks.yaml'
+        local_tasks_file = os.path.join(os.path.dirname(fuelweb_test.__file__),
+                                        'config_templates',
+                                        tasks_filename)
+        with open(local_tasks_file, 'r') as yaml_file:
+            tasks_yaml_data = yaml.load(yaml_file)
+        custom_tasks = set([t['id'] for t in tasks_yaml_data])
+        upload_tasks_path = '/tmp/{}'.format(tasks_filename)
+        self.ssh_manager.upload_to_remote(
+            ip=self.ssh_manager.admin_ip,
+            source=local_tasks_file,
+            target=upload_tasks_path)
+        upload_tasks_cmd = 'fuel2 graph upload -e {cluster_id} -t ' \
+                           '{graph_type} -f {path}'.format(
+                               cluster_id=cluster_id,
+                               graph_type=graph_type,
+                               path=upload_tasks_path
+                           )
+        self.ssh_manager.execute_on_remote(
+            ip=self.ssh_manager.admin_ip,
+            cmd=upload_tasks_cmd)
+
+        self.show_step(8)  # Download tasks for 'default' graph
+        rel_id = self.fuel_web.get_cluster_release_id(cluster_id)
+        rel_tasks = self.fuel_web.client.get_release_tasks(rel_id)[0]['tasks']
+        release_tasks = set([task['task_name'] for task in rel_tasks])
+
+        self.show_step(9)  # no 'custom_graph' tasks in 'default' graph
+        assert_equal(release_tasks,
+                     release_tasks - custom_tasks,
+                     'There were custom tasks in release. '
+                     'Release is the place where default graph takes tasks.')
+
+        self.show_step(10)  # Deploy the cluster
+        self.fuel_web.deploy_cluster_wait(cluster_id, check_tasks=False)
+
+        self.show_step(11)  # Run network verification
+        self.fuel_web.verify_network(cluster_id)
+
+        self.show_step(12)  # Run OSTF to check services are deployed
+        self.fuel_web.run_ostf(cluster_id=cluster_id)
+
+        self.show_step(13)  # 'custom_graph' tasks are not called on controller
+        self.check_tasks_on_node(cluster_id, 'controller', '')
+
+        self.show_step(14)  # 'custom_graph' tasks are not called on compute
+        self.check_tasks_on_node(cluster_id, 'compute', '')
+
+        self.show_step(15)  # 'custom_graph' tasks are not called on cinder
+        self.check_tasks_on_node(cluster_id, 'cinder', '')
+
+        self.show_step(16)  # Create snapshot
+        self.env.make_snapshot('custom_graph_leakage')
+
+    @test(depends_on=[pre_provision_ubuntu_slaves_3],
+          groups=['custom_graph', 'graph_isolation', 'default_graph_leakage'])
+    @log_snapshot_after_test
+    def default_graph_leakage(self):
+        """Check tasks for default graph are not shown in custom
+
+        Scenario:
+            1. Revert snapshot 'pre_provision_ubuntu_slaves_3'
+            2. Create cluster
+            3. Add 1 node with controller role
+            4. Add 1 node with compute role
+            5. Add 1 node with storage role
+            6. Provision the cluster
+            7. Create custom graph 'custom_graph'
+            8. Upload tasks to 'custom_graph'
+            9. Download tasks for 'custom_graph' graph from api
+            10. Verify that there no 'default' tasks
+                in 'custom_graph' graph
+            11. Run 'custom_graph' deployment
+            12. Verify that 'custom_graph' tasks are called on controller
+            13. Verify that 'controller' role has not been deployed
+            14. Verify that 'custom_graph' tasks are called on compute
+            15. Verify that 'compute' role has not been deployed
+            16. Verify that 'custom_graph' tasks are called on cinder
+            17. Verify that 'cinder' role has not been deployed
+            18. Create snapshot
+
+        Duration 100m
+        Snapshot default_graph_leakage
+        """
+        self.show_step(1)  # Revert snapshot 'pre_provision_ubuntu_slaves_3'
+        self.env.revert_snapshot('pre_provision_ubuntu_slaves_3')
+        graph_type = 'custom_graph'
+
+        self.show_step(2)  # Create cluster
+        cluster_id = self.fuel_web.create_cluster(name=self.__class__.__name__)
+        rel_id = self.fuel_web.get_cluster_release_id(cluster_id)
+        self.move_ubuntu_target_image(rel_id, cluster_id)
+
+        self.show_step(3)  # Add 1 node with controller role
+        self.show_step(4)  # Add 1 node with compute role
+        self.show_step(5)  # Add 1 node with storage role
+        self.fuel_web.update_nodes(
+            cluster_id,
+            {
+                'slave-01': ['controller'],
+                'slave-02': ['compute'],
+                'slave-03': ['cinder'],
+            }
+        )
+
+        self.show_step(6)  # Provision the cluster
+        self.fuel_web.provisioning_cluster_wait(cluster_id)
+
+        self.show_step(7)  # Create custom graph 'custom_graph'
+        self.show_step(8)  # Upload tasks to 'custom_graph'
+        tasks_filename = 'custom_graph_tasks.yaml'
+        local_tasks_file = os.path.join(os.path.dirname(fuelweb_test.__file__),
+                                        'config_templates',
+                                        tasks_filename)
+        with open(local_tasks_file, 'r') as yaml_file:
+            tasks_yaml_data = yaml.load(yaml_file)
+        expected_tasks = set([t['id'] for t in tasks_yaml_data])
+        upload_tasks_path = '/tmp/{}'.format(tasks_filename)
+        self.ssh_manager.upload_to_remote(
+            ip=self.ssh_manager.admin_ip,
+            source=local_tasks_file,
+            target=upload_tasks_path)
+        upload_tasks_cmd = 'fuel2 graph upload -e {cluster_id} -t ' \
+                           '{graph_type} -f {path}'.format(
+                               cluster_id=cluster_id,
+                               graph_type=graph_type,
+                               path=upload_tasks_path
+                           )
+        self.ssh_manager.execute_on_remote(
+            ip=self.ssh_manager.admin_ip,
+            cmd=upload_tasks_cmd)
+
+        self.show_step(9)  # Download tasks for 'custom_graph' graph from api
+        cli_tasks_data = self.ssh_manager.execute_on_remote(
+            ip=self.ssh_manager.admin_ip,
+            cmd='fuel2 graph list -e {cluster_id} -c tasks -f csv |'
+                'grep custom'.format(cluster_id=cluster_id)
+        )['stdout'][0]
+        actual_tasks = set(re.findall(r'[\w\-_]+', cli_tasks_data))
+
+        self.show_step(10)  # Verify that there no 'default' tasks leak
+        assert_equal(actual_tasks,
+                     expected_tasks,
+                     'There were difference in processed tasks. '
+                     'Possibly, regex to find actual_tasks is wrong.')
+
+        self.show_step(11)  # Run 'custom_graph' deployment.
+        self.fuel_web.deploy_custom_graph_wait(cluster_id, graph_type)
+
+        self.show_step(12)  # 'custom_graph' tasks are called on controller
+        self.show_step(13)  # 'controller' role has not been deployed
+        self.check_tasks_on_node(cluster_id, 'controller', 'controller')
+        self.ssh_manager.execute_on_remote(
+            ip=self.fuel_web.get_nailgun_cluster_nodes_by_roles(
+                cluster_id,
+                ['controller'])[0]['ip'],
+            cmd='pgrep neutron',
+            assert_ec_equal=[1]
+        )
+
+        self.show_step(14)  # 'custom_graph' tasks are called on controller
+        self.show_step(15)  # 'compute' role has not been deployed
+        self.check_tasks_on_node(cluster_id, 'compute', 'compute')
+        self.ssh_manager.execute_on_remote(
+            ip=self.fuel_web.get_nailgun_cluster_nodes_by_roles(
+                cluster_id,
+                ['compute'])[0]['ip'],
+            cmd='pgrep nova-compute',
+            assert_ec_equal=[1]
+        )
+
+        self.show_step(16)  # 'custom_graph' tasks are called on controller
+        self.show_step(17)  # 'cinder' role has not been deployed
+        self.check_tasks_on_node(cluster_id, 'cinder', 'cinder')
+        self.ssh_manager.execute_on_remote(
+            ip=self.fuel_web.get_nailgun_cluster_nodes_by_roles(
+                cluster_id,
+                ['cinder'])[0]['ip'],
+            cmd='pgrep cinder',
+            assert_ec_equal=[1]
+        )
+
+        self.show_step(18)  # Create snapshot
+        self.env.make_snapshot('default_graph_leakage')
+
+    @test(depends_on=[pre_provision_ubuntu_slaves_3],
+          groups=['custom_graph', 'graph_merge', 'default_is_from_puppet'])
+    @log_snapshot_after_test
+    def default_is_from_puppet(self):
+        """Verify that default graph is generated from
+        tasks in /etc/puppet
+
+        Scenario:
+            1. Revert snapshot 'pre_provision_ubuntu_slaves_3'
+            2. Create cluster
+            3. Download deployment graph
+            4. Fetch all tasks from /etc/puppet
+            5. Verify that tasks in deployment graph are
+                from /etc/puppet
+
+        Duration 30m
+        """
+        self.show_step(1)  # Revert snapshot 'pre_provision_ubuntu_slaves_3'
+        self.env.revert_snapshot('pre_provision_ubuntu_slaves_3')
+
+        self.show_step(2)  # Create cluster
+        cluster_id = self.fuel_web.create_cluster(name=self.__class__.__name__)
+        rel_id = self.fuel_web.get_cluster_release_id(cluster_id)
+        self.move_ubuntu_target_image(rel_id, cluster_id)
+
+        self.show_step(3)  # Download deployment graph
+        rel_tasks = self.fuel_web.client.get_release_tasks(rel_id)[0]['tasks']
+        release_tasks = set([task['task_name'] for task in rel_tasks])
+
+        self.show_step(4)  # Fetch all tasks from /etc/puppet
+        tasks_cmd = ('find /etc/puppet -name "*.yaml" -print0|'
+                     'xargs -0 grep -oh '
+                     '"name: [^(/()]*" '  # To avoid /(primary-)?rabbitmq/
+                     '| awk -F" " \'{print $2}\' |sort -u|uniq')
+        puppet_tasks = set([name.strip() for name in
+                            self.ssh_manager.execute_on_remote(
+                                ip=self.ssh_manager.admin_ip,
+                                cmd=tasks_cmd)['stdout'] if
+                            name.strip() != ''])
+
+        self.show_step(5)  # tasks in deployment graph are from /etc/puppet
+        # There are fuel-0x /etc/puppet/modules/cobbler/examples/nodes.yaml
+        tasks = [x for x in puppet_tasks - release_tasks
+                 if 'fuel-0' not in x]
+        assert_equal(tasks, [],
+                     'There are not all tasks from puppet in release')
+
+    @test(depends_on=[pre_provision_ubuntu_slaves_3],
+          groups=['custom_graph', 'graph_merge',
+                  'tasks_merge_cluster_and_release'])
+    @log_snapshot_after_test
+    def tasks_merge_cluster_and_release(self):
+        """Verify custom graph merging from release and cluster tasks
+
+        Scenario:
+            1. Revert snapshot 'pre_provision_ubuntu_slaves_3'
+            2. Create cluster
+            3. Upload 'custom_graph' tasks to release
+            4. Upload 'custom_graph' tasks to cluster
+            5. Download 'custom_graph' deployment graph
+            6. Verify that 'custom_graph' is a merge of
+                release and cluster graphs.
+            7. Create snapshot 'tasks_diff'
+
+        Duration 30m
+        Snapshot merge_cluster_and_release
+        """
+        self.show_step(1)  # Revert snapshot
+        self.env.revert_snapshot('pre_provision_ubuntu_slaves_3')
+        graph_type = 'custom_graph'
+
+        self.show_step(2)  # Create cluster
+        cluster_id = self.fuel_web.create_cluster(name=self.__class__.__name__)
+        rel_id = self.fuel_web.get_cluster_release_id(cluster_id)
+        self.move_ubuntu_target_image(rel_id, cluster_id)
+
+        self.show_step(3)  # Upload 'custom_graph' tasks to release
+        rel_tasks_filename = 'release_custom_tasks.yaml'
+        local_tasks_file = os.path.join(os.path.dirname(fuelweb_test.__file__),
+                                        'config_templates',
+                                        rel_tasks_filename)
+        with open(local_tasks_file, 'r') as yaml_file:
+            release_tasks_yaml_data = yaml.load(yaml_file)
+        upload_tasks_path = '/tmp/{}'.format(rel_tasks_filename)
+
+        self.ssh_manager.upload_to_remote(
+            ip=self.ssh_manager.admin_ip,
+            source=local_tasks_file,
+            target=upload_tasks_path)
+        upload_tasks_cmd = 'fuel2 graph upload -e {cluster_id} -t ' \
+                           '{graph_type} -f {path}'.format(
+                               cluster_id=cluster_id,
+                               graph_type=graph_type,
+                               path=upload_tasks_path
+                           )
+        self.ssh_manager.execute_on_remote(
+            ip=self.ssh_manager.admin_ip,
+            cmd=upload_tasks_cmd)
+
+        self.show_step(4)  # Upload 'custom_graph' tasks to cluster
+        c_tasks_filename = 'custom_graph_tasks.yaml'
+        local_tasks_file = os.path.join(os.path.dirname(fuelweb_test.__file__),
+                                        'config_templates',
+                                        c_tasks_filename)
+        with open(local_tasks_file, 'r') as yaml_file:
+            cluster_tasks_yaml_data = yaml.load(yaml_file)
+        upload_tasks_path = '/tmp/{}'.format(rel_tasks_filename)
+
+        self.ssh_manager.upload_to_remote(
+            ip=self.ssh_manager.admin_ip,
+            source=local_tasks_file,
+            target=upload_tasks_path)
+        upload_tasks_cmd = 'fuel2 graph upload -e {cluster_id} -t ' \
+                           '{graph_type} -f {path}'.format(
+                               cluster_id=cluster_id,
+                               graph_type=graph_type,
+                               path=upload_tasks_path
+                           )
+        self.ssh_manager.execute_on_remote(
+            ip=self.ssh_manager.admin_ip,
+            cmd=upload_tasks_cmd)
+
+        self.show_step(5)  # Download 'custom_graph' deployment graph
+        custom_tasks = \
+            self.fuel_web.client.get_custom_cluster_deployment_tasks(
+                cluster_id,
+                graph_type)
+
+        self.show_step(6)  # 'custom_graph' is a merge of release and cluster.
+        generated_names = set([t['task_name'] for t in custom_tasks])
+        uploaded_names = set(
+            [t['id'] for t in release_tasks_yaml_data] +
+            [t['id'] for t in cluster_tasks_yaml_data])
+        diff = generated_names - uploaded_names
+        assert_equal(diff, set([]), 'Tasks are not result of merge!')
+
+        self.show_step(7)  # Create snapshot 'tasks_diff'
+        self.env.make_snapshot('tasks_diff')
+
+    @test(depends_on=[pre_provision_ubuntu_slaves_3],
+          groups=['custom_graph', 'graph_isolation',
+                  'two_custom_graphs_interfere'])
+    @log_snapshot_after_test
+    def two_custom_graphs_interfere(self):
+        """Verify that two custom graphs do not interfere with each other.
+
+        Scenario:
+            1. Revert snapshot 'pre_provision_ubuntu_slaves_3'
+            2. Create cluster
+            3. Add 1 node with controller role
+            4. Add 1 node with compute role
+            5. Add 1 node with storage role
+            6. Provision cluster
+            7. Upload 'custom_graph' tasks to release
+            8. Upload 'yaql_graph' tasks to release
+            9. Run 'custom_graph' deployment.
+            10. Run 'yaql_graph' deployment.
+            11. Verify that 'yaql_graph' tasks are not called on controller
+            12. Verify that 'yaql_graph' tasks are not called on compute
+            13. Verify that 'yaql_graph' tasks are not called on cinder
+            14. Create snapshot `two_custom_graphs_interfere`
+
+        Duration 30m
+        Snapshot two_custom_graphs_interfere
+        """
+        self.show_step(1)  # Revert snapshot 'pre_provision_ubuntu_slaves_3'
+        self.env.revert_snapshot('pre_provision_ubuntu_slaves_3')
+
+        self.show_step(2)  # Create cluster
+        cluster_id = self.fuel_web.create_cluster(name=self.__class__.__name__)
+        rel_id = self.fuel_web.get_cluster_release_id(cluster_id)
+        self.move_ubuntu_target_image(rel_id, cluster_id)
+
+        self.show_step(3)  # Add 1 node with controller role
+        self.show_step(4)  # Add 1 node with compute role
+        self.show_step(5)  # Add 1 node with storage role
+        self.fuel_web.update_nodes(
+            cluster_id,
+            {
+                'slave-01': ['controller'],
+                'slave-02': ['compute'],
+                'slave-03': ['cinder'],
+            }
+        )
+
+        self.show_step(6)  # Create cluster
+        self.fuel_web.provisioning_cluster_wait(cluster_id)
+
+        self.show_step(7)  # Upload 'custom_graph' tasks to release
+        graph_type = 'custom_graph'
+        tasks_filename = 'custom_graph_tasks.yaml'
+        local_tasks_file = os.path.join(os.path.dirname(fuelweb_test.__file__),
+                                        'config_templates',
+                                        tasks_filename)
+        upload_tasks_path = '/tmp/{}'.format(tasks_filename)
+        self.ssh_manager.upload_to_remote(
+            ip=self.ssh_manager.admin_ip,
+            source=local_tasks_file,
+            target=upload_tasks_path)
+        upload_tasks_cmd = 'fuel2 graph upload -e {cluster_id} -t ' \
+                           '{graph_type} -f {path}'.format(
+                               cluster_id=cluster_id,
+                               graph_type=graph_type,
+                               path=upload_tasks_path
+                           )
+        self.ssh_manager.execute_on_remote(
+            ip=self.ssh_manager.admin_ip,
+            cmd=upload_tasks_cmd)
+
+        self.show_step(8)  # Upload 'yaql_graph' tasks to release
+        graph_type = 'yaql_graph'
+        tasks_filename = 'custom_yaql_tasks.yaml'
+        local_tasks_file = os.path.join(os.path.dirname(fuelweb_test.__file__),
+                                        'config_templates',
+                                        tasks_filename)
+        upload_tasks_path = '/tmp/{}'.format(tasks_filename)
+        self.ssh_manager.upload_to_remote(
+            ip=self.ssh_manager.admin_ip,
+            source=local_tasks_file,
+            target=upload_tasks_path)
+        upload_tasks_cmd = 'fuel2 graph upload -e {cluster_id} -t ' \
+                           '{graph_type} -f {path}'.format(
+                               cluster_id=cluster_id,
+                               graph_type=graph_type,
+                               path=upload_tasks_path
+                           )
+        self.ssh_manager.execute_on_remote(
+            ip=self.ssh_manager.admin_ip,
+            cmd=upload_tasks_cmd)
+
+        self.show_step(9)  # Run 'custom_graph' deployment.
+        self.fuel_web.deploy_custom_graph_wait(cluster_id, 'custom_graph')
+
+        self.show_step(10)  # Run 'yaql_graph' deployment.
+        self.fuel_web.deploy_custom_graph_wait(cluster_id, graph_type)
+
+        # NOTE(akostrikov)
+        # Verify that yaql tasks which uploaded with custom graph tasks are
+        # not called at first run, because they are isolated in another graph
+        # and not called at second run because nodes are not added in such case
+        # and yaql expressions are preventing from running on already deployed
+        # nodes.
+        self.show_step(11)  # 'yaql_graph' tasks are not called on controller
+        controller_node = self.fuel_web.get_nailgun_cluster_nodes_by_roles(
+            cluster_id, ['controller'])[0]
+        check_yaql_cmd = 'ls /tmp/yaql_task_on_all_nodes'
+        self.ssh_manager.execute_on_remote(
+            ip=controller_node['ip'],
+            cmd=check_yaql_cmd,
+            assert_ec_equal=[2])
+
+        self.show_step(12)  # 'yaql_graph' tasks are not called on compute
+        compute_node = self.fuel_web.get_nailgun_cluster_nodes_by_roles(
+            cluster_id, ['compute'])[0]
+        check_yaql_cmd = 'ls /tmp/yaql_task_on_all_nodes'
+        self.ssh_manager.execute_on_remote(
+            ip=compute_node['ip'],
+            cmd=check_yaql_cmd,
+            assert_ec_equal=[2])
+
+        self.show_step(13)  # 'yaql_graph' tasks are not called on cinder
+        cinder_node = self.fuel_web.get_nailgun_cluster_nodes_by_roles(
+            cluster_id, ['cinder'])[0]
+        check_yaql_cmd = 'ls /tmp/yaql_task_on_all_nodes'
+        self.ssh_manager.execute_on_remote(
+            ip=cinder_node['ip'],
+            cmd=check_yaql_cmd,
+            assert_ec_equal=[2])
+
+        self.show_step(14)  # Create snapshot `two_custom_graphs_interfere`
+        self.env.make_snapshot('two_custom_graphs_interfere')
+
+    @test(depends_on=[pre_provision_ubuntu_slaves_3],
+          groups=['custom_graph', 'custom_graph_master_node'])
+    @log_snapshot_after_test
+    def master_node_tasks(self):
+        """Verify tasks execution and ordering on master node
+
+        Scenario:
+            1. Revert snapshot 'pre_provision_ubuntu_slaves_3'
+            3. Create cluster
+            3. Upload 'master_node' tasks
+            4. Run 'master_node' tasks
+            5. Verify that tasks are executed in correct order
+            6. Create snapshot
+
+        Duration 30m
+        Snapshot master_node_tasks
+        """
+        self.show_step(1)  # Revert snapshot 'pre_provision_ubuntu_slaves_3'
+        self.env.revert_snapshot('pre_provision_ubuntu_slaves_3')
+
+        self.show_step(2)  # Create cluster
+        cluster_id = self.fuel_web.create_cluster(name=self.__class__.__name__)
+        rel_id = self.fuel_web.get_cluster_release_id(cluster_id)
+        self.move_ubuntu_target_image(rel_id, cluster_id)
+
+        self.show_step(3)  # Upload 'master_node' tasks
+        graph_type = 'master_node'
+        tasks_filename = 'master_node_tasks.yaml'
+        local_tasks_file = os.path.join(os.path.dirname(fuelweb_test.__file__),
+                                        'config_templates',
+                                        tasks_filename)
+        upload_tasks_path = '/tmp/{}'.format(tasks_filename)
+        self.ssh_manager.upload_to_remote(
+            ip=self.ssh_manager.admin_ip,
+            source=local_tasks_file,
+            target=upload_tasks_path)
+        upload_tasks_cmd = 'fuel2 graph upload -e {cluster_id} -t ' \
+                           '{graph_type} -f {path}'.format(
+                               cluster_id=cluster_id,
+                               graph_type=graph_type,
+                               path=upload_tasks_path
+                           )
+        self.ssh_manager.execute_on_remote(
+            ip=self.ssh_manager.admin_ip,
+            cmd=upload_tasks_cmd)
+
+        self.show_step(4)  # Run 'master_node' deployment
+        self.fuel_web.deploy_custom_graph_wait(cluster_id, graph_type)
+
+        self.show_step(5)  # Tasks should be executed in correct order
+        check_cmd = 'cat /tmp/master_task'
+        tasks_order = self.ssh_manager.execute_on_remote(
+            ip=self.ssh_manager.admin_ip,
+            cmd=check_cmd)['stdout_str']
+        actual_result = ''.join([s for s in tasks_order.split()
+                                 if s.isdigit()])
+        expected_result = '123'
+        assert_equal(actual_result, expected_result,
+                     'Task ordering error: {actual} != {expected}'
+                     .format(actual=actual_result,
+                             expected=expected_result))
+
+        self.show_step(6)  # Create snapshot
+        self.env.make_snapshot('custom_graph_master_node')
+
+    @test(depends_on=[pre_provision_ubuntu_slaves_3],
+          groups=['custom_graph', 'custom_graph_edges'])
+    @log_snapshot_after_test
+    def custom_yaql_expression_tasks(self):
+        """Verify yaql expressions are working in custom graph
+
+        Scenario:
+            1. Revert snapshot 'pre_provision_ubuntu_slaves_3'
+            2. Create cluster
+            3. Add 1 node with controller role
+            4. Add 1 node with compute role
+            5. Add 1 node with storage role
+            6. Create custom graph 'yaql_graph'
+            7. Upload tasks to 'yaql_graph'
+            8. Provision the cluster
+            9. Deploy the cluster
+            10. Re-deploy the cluster
+            11. Check yaql on controller
+            12. Check yaql on compute
+            13. Check yaql on cinder
+
+        Duration 30m
+        """
+        self.show_step(1)  # Revert snapshot 'pre_provision_ubuntu_slaves_3'
+        self.env.revert_snapshot('pre_provision_ubuntu_slaves_3')
+        graph_type = 'yaql_graph'
+
+        self.show_step(2)  # Create cluster
+        cluster_id = self.fuel_web.create_cluster(name=self.__class__.__name__)
+        rel_id = self.fuel_web.get_cluster_release_id(cluster_id)
+        self.move_ubuntu_target_image(rel_id, cluster_id)
+
+        self.show_step(3)  # Add 1 node with controller role
+        self.show_step(4)  # Add 1 node with compute role
+        self.show_step(5)  # Add 1 node with storage role
+        self.fuel_web.update_nodes(
+            cluster_id,
+            {
+                'slave-01': ['controller'],
+                'slave-02': ['compute'],
+                'slave-03': ['cinder'],
+            }
+        )
+
+        self.show_step(6)  # Create custom graph 'yaql_graph'
+        self.show_step(7)  # Upload tasks to 'yaql_graph'
+        tasks_filename = 'custom_yaql_tasks.yaml'
+        local_tasks_file = os.path.join(os.path.dirname(fuelweb_test.__file__),
+                                        'config_templates',
+                                        tasks_filename)
+        upload_tasks_path = '/tmp/{}'.format(tasks_filename)
+        self.ssh_manager.upload_to_remote(
+            ip=self.ssh_manager.admin_ip,
+            source=local_tasks_file,
+            target=upload_tasks_path)
+        upload_tasks_cmd = 'fuel2 graph upload -e {cluster_id} -t ' \
+                           '{graph_type} -f {path}'.format(
+                               cluster_id=cluster_id,
+                               graph_type=graph_type,
+                               path=upload_tasks_path
+                           )
+        self.ssh_manager.execute_on_remote(
+            ip=self.ssh_manager.admin_ip,
+            cmd=upload_tasks_cmd)
+
+        self.show_step(8)  # Provision the cluster
+        self.fuel_web.provisioning_cluster_wait(cluster_id)
+
+        self.show_step(9)  # Deploy the cluster
+        self.fuel_web.deploy_custom_graph_wait(cluster_id, graph_type)
+
+        self.show_step(10)  # Re-deploy the cluster
+        self.fuel_web.deploy_custom_graph_wait(cluster_id, graph_type)
+
+        self.show_step(11)  # Check yaql on controller
+        controller_node = self.fuel_web.get_nailgun_cluster_nodes_by_roles(
+            cluster_id, ['controller'])[0]
+        check_yaql_cmd = 'cat /tmp/yaql_task_on_all_nodes |wc -l'
+        times_echoed = self.ssh_manager.execute_on_remote(
+            ip=controller_node['ip'],
+            cmd=check_yaql_cmd)['stdout'][0].strip()
+        assert_equal('1', times_echoed)
+
+        self.show_step(12)  # Check yaql on compute
+        compute_node = self.fuel_web.get_nailgun_cluster_nodes_by_roles(
+            cluster_id, ['compute'])[0]
+        check_yaql_cmd = 'cat /tmp/yaql_task_on_all_nodes |wc -l'
+        times_echoed = self.ssh_manager.execute_on_remote(
+            ip=compute_node['ip'],
+            cmd=check_yaql_cmd)['stdout'][0].strip()
+        assert_equal('1', times_echoed)
+
+        self.show_step(13)  # Check yaql on cinder
+        cinder_node = self.fuel_web.get_nailgun_cluster_nodes_by_roles(
+            cluster_id, ['cinder'])[0]
+        check_yaql_cmd = 'cat /tmp/yaql_task_on_all_nodes |wc -l'
+        times_echoed = self.ssh_manager.execute_on_remote(
+            ip=cinder_node['ip'],
+            cmd=check_yaql_cmd)['stdout'][0].strip()
+        assert_equal('1', times_echoed)
+
+    @test(depends_on=[pre_provision_ubuntu_slaves_3],
+          groups=['custom_graph', 'graph_meta'])
+    @log_snapshot_after_test
+    def information_at_graphs_handler(self):
+        """Get info of api handlers
+
+        Scenario:
+            1. Revert snapshot 'pre_provision_ubuntu_slaves_3'
+            2. Create cluster
+            3. Add 1 node with controller role
+            4. Add 1 node with compute role
+            5. Add 1 node with storage role
+            6. Provision cluster
+            7. Upload 'custom_graph' tasks to release
+            8. Upload 'yaql_graph' tasks to release
+            9. Verify list shows 'default' tasks
+            10. Verify list shows 'custom' tasks
+            11. Verify list shows 'yaql' tasks
+
+        Duration 30m
+        """
+        self.show_step(1)  # Revert snapshot 'pre_provision_ubuntu_slaves_3'
+        self.env.revert_snapshot('pre_provision_ubuntu_slaves_3')
+
+        self.show_step(2)  # Create cluster
+        cluster_id = self.fuel_web.create_cluster(name=self.__class__.__name__)
+        rel_id = self.fuel_web.get_cluster_release_id(cluster_id)
+        self.move_ubuntu_target_image(rel_id, cluster_id)
+
+        self.show_step(3)  # Add 1 node with controller role
+        self.show_step(4)  # Add 1 node with compute role
+        self.show_step(5)  # Add 1 node with storage role
+        self.fuel_web.update_nodes(
+            cluster_id,
+            {
+                'slave-01': ['controller'],
+                'slave-02': ['compute'],
+                'slave-03': ['cinder'],
+            }
+        )
+
+        self.show_step(6)  # Create cluster
+        self.fuel_web.provisioning_cluster_wait(cluster_id)
+
+        self.show_step(7)  # Upload 'custom_graph' tasks to release
+        graph_type = 'custom_graph'
+        tasks_filename = 'custom_graph_tasks.yaml'
+        local_tasks_file = os.path.join(os.path.dirname(fuelweb_test.__file__),
+                                        'config_templates',
+                                        tasks_filename)
+        upload_tasks_path = '/tmp/{}'.format(tasks_filename)
+        self.ssh_manager.upload_to_remote(
+            ip=self.ssh_manager.admin_ip,
+            source=local_tasks_file,
+            target=upload_tasks_path)
+        upload_tasks_cmd = 'fuel2 graph upload -e {cluster_id} -t ' \
+                           '{graph_type} -f {path}'.format(
+                               cluster_id=cluster_id,
+                               graph_type=graph_type,
+                               path=upload_tasks_path
+                           )
+        self.ssh_manager.execute_on_remote(
+            ip=self.ssh_manager.admin_ip,
+            cmd=upload_tasks_cmd)
+
+        self.show_step(8)  # Upload 'yaql_graph' tasks to release
+        graph_type = 'yaql_graph'
+        tasks_filename = 'custom_yaql_tasks.yaml'
+        local_tasks_file = os.path.join(os.path.dirname(fuelweb_test.__file__),
+                                        'config_templates',
+                                        tasks_filename)
+        upload_tasks_path = '/tmp/{}'.format(tasks_filename)
+        self.ssh_manager.upload_to_remote(
+            ip=self.ssh_manager.admin_ip,
+            source=local_tasks_file,
+            target=upload_tasks_path)
+        upload_tasks_cmd = 'fuel2 graph upload -e {cluster_id} -t ' \
+                           '{graph_type} -f {path}'.format(
+                               cluster_id=cluster_id,
+                               graph_type=graph_type,
+                               path=upload_tasks_path
+                           )
+        self.ssh_manager.execute_on_remote(
+            ip=self.ssh_manager.admin_ip,
+            cmd=upload_tasks_cmd)
+
+        self.show_step(9)  # Verify list shows 'default' tasks
+        check_default_cmd = 'fuel2 graph list -e {c_id}|grep default'.format(
+            c_id=cluster_id)
+        self.ssh_manager.execute_on_remote(
+            ip=self.ssh_manager.admin_ip,
+            cmd=check_default_cmd)
+
+        self.show_step(10)  # Verify list shows 'custom' tasks
+        check_custom_cmd = 'fuel2 graph list -e {c_id}|grep custom'.format(
+            c_id=cluster_id)
+        self.ssh_manager.execute_on_remote(
+            ip=self.ssh_manager.admin_ip,
+            cmd=check_custom_cmd)
+
+        self.show_step(11)  # Verify list shows 'yaql' tasks
+        check_yaql_cmd = 'fuel2 graph list -e {c_id}|grep yaql'.format(
+            c_id=cluster_id)
+        self.ssh_manager.execute_on_remote(
+            ip=self.ssh_manager.admin_ip,
+            cmd=check_yaql_cmd)