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|
===========================
OPNFV functional test guide
===========================
Testing is a key challenge of OPNFV.
It shall be possible to run functional tests on any OPNFV solution.
The goal of this document consists in
* a description of functional tests for OPNFV
* a description of the tools needed to perform these tests
* the procedure to configure the tools and the scenarios associated with these tests
Functional tests shall be automated (as much as possible) and collected results shall be used to improve the robustness and the reliability of the overall system.
Function tests may cover any domain that could lead to improve the OPNFV solution and define "Telco Cloud" KPI.
The last section also describes how to automate these tests within the OPNFV continuous integration project.
.. _ETSI: http://docbox.etsi.org/ISG/NFV/Open/Published/gs_NFV001v010101p%20-%20Use%20Cases.pdf
ETSI NFV defined 9 use cases (ref ETSI_):
* VNF as a Service
* NFV as a service
* VNF Forwarding graphs
* Virtual Network Platform as a Service
* Virtualisation of Mobile Core and IMS
* Virtualisation of Mobile station
* Fixed Access NFV
* Virtualization of CDNs (vCDN)
* Virtualization of the Home environment
.. _`Openstack Telco Working Group`: https://wiki.openstack.org/wiki/TelcoWorkingGroup
Most of the use cases are also discussed in upstream projects (e.g. `Openstack Telco Working Group`_ )
For release 1 (Arno), 4 test suites have been selected:
* Rally Bench test suite for Openstack
* Openstack Tempest test suite
* OpenDaylight test suite
* vPing
The 3 first suites are directly inherited from upstream projects.
vPing, that is already present in Tempest suite, has been developped to provided a basic "hello world" functional test example.
.. _`Continuous Integration`: https://build.opnfv.org/ci/view/functest/
vIMS, vEPC, vPE, vHGW, vCDN use cases are not considered for first release.
It does not mean that such use cases cannot be tested on OPNFV Arno.
It means that these testcases have not been integrated in the `Continuous Integration`_ and no specific work (integration or developpment) have been done for R1.
We may expect that new VNFs and new scenarios will be created and integrated in the future releases.
.. _prereqs:
-------------
Prerequisites
-------------
We assume that an OPNFV Arno solution has been installed.
.. _here: https://wiki.opnfv.org/documentation/Arno
The installation of the OPNFV solution is out of scope of this document but can be found [here_].
In the rest of the document the OPNFV solution would be considered as the System Under Test (SUT).
The installation and configuration of the tools needed to perform the tests will be described in the following sections.
For release 1, the tools are not fully automatically installed, more details will be provided in the configuration section.
.. _pharos: https://wiki.opnfv.org/pharos
It is recommended to install the different tools on the jump host server as defined in the pharos_ project.
The high level architecture can be described as follow::
CIMC/Lights+out management Admin Private Public Storage
PXE
+
+ + IP_PRIV/24 | |
| | + + |
| | | IP_PUB/24 |
| +-----------------+ | | + |
| | | | | | |
+-----+ Jumpserver | | | | |
| | +---------------------+ | | |
| | | | | | |
| | +----------+ | | | | |
| | | Rally | +---- --------------------------+ | |
| | | | | | | | |
| | | Robot | | | | | |
| | | | | | | | |
| | | vPing | | | | | |
| | | | | | | | |
| | | Tempest | | | | | |
| | +----------+ | | | | |
| | FuncTests +-----------------------------------------+ |
| | | | | | |
| | +--------------------------------------------------+
| | | | | | |
| +-----------------+ | | | |
| | | | |
| +----------------+ | | | |
| | 1 | | | | |
+----+ +--------------+-+ | | | |
| | | 2 | | | | |
| | | +--------------+-+ | | | |
| | | | 3 | | | | |
| | | | +--------------+-+ | | | |
| | | | | 4 | | | | |
| +-+ | | +--------------+-+ | | | |
| | | | | 5 +---------------+ | | |
| +-+ | | nodes for | | | | |
| | | | deploying +-------------------------+ | |
| +-+ | opnfv | | | | |
| | | SUT +-----------------------------------+ |
| +-+ | | | | |
| | +--------------------------------------------+
| +----------------+ | | | |
| | | | |
| + + + +
.. _description:
-----------------------------
Description of the test cases
-----------------------------
Rally bench test suite
======================
.. _Rally: https://wiki.openstack.org/wiki/Rally
The OPNFV scenarios are based on the collection of Rally_ scenarios:
* authenticate
* cinder
* nova
* vm
* glance
* keystone
* neutron
* quotas
The goal of this test suite is to test the different modules of OpenStack and get significant figures that could help us to define telco Cloud KPI.
This test suite provides performance information on VIM (OpenStack) part.
No SLA were defined for release 1, we just consider whether the tests are passed or failed.
In the future SLA shall be considered (e.g. accepting booting time for a given image with a given flavour).
Through its integration in Continuous Integration, the evolution of the performance of these tests shall also be considered.
Tempest
=======
.. _Tempest: http://docs.openstack.org/developer/tempest/overview.html
Tempest_ is the OpenStack Integration Test Suite. We use Rally to run Tempest suite.
The goal of this test is to check the OpenStack installation (sanity checks).
OpenDaylight
============
The ODL suite consists in a set of basic tests inherited from ODL project. The list of tests can be described as follow:
* Restconf.basic: Get the controller modules via Restconf
* Neutron.Networks
* Check OpenStack Networks :: Checking OpenStack Neutron for known networks
* Check OpenDaylight Networks :: Checking OpenDaylight Neutron API
* Create Network :: Create new network in OpenStack
* Check Network :: Check Network created in OpenDaylight
* Neutron.Networks :: Checking Network created in OpenStack are pushed
* Neutron.Subnets
* Check OpenStack Subnets :: Checking OpenStack Neutron for known Subnets
* Check OpenDaylight subnets :: Checking OpenDaylight Neutron API
* Create New subnet :: Create new subnet in OpenStack
* Check New subnet :: Check new subnet created in OpenDaylight
* Neutron.Subnets :: Checking Subnets created in OpenStack are pushed
* Neutron.Ports
* Check OpenStack ports :: Checking OpenStack Neutron for known ports
* Check OpenDaylight ports :: Checking OpenDaylight Neutron API
* Create New Port :: Create new port in OpenStack
* Check New Port :: Check new subnet created in OpenDaylight
* Neutron.Ports :: Checking Port created in OpenStack are pushed
* Delete Ports
* Delete previously created subnet in OpenStack
* Check subnet deleted in OpenDaylight
* Check subnet deleted in OpenStack
* Delete network
* Delete previously created network in OpenStack
* Check network deleted in OpenDaylight
* Check network deleted in OpenStack
vPing
=====
The goal of this test can be described as follow::
vPing testcase
+-------------+ +-------------+
| | | |
| | | |
| | Boot VM1 | |
| +------------------>| |
| | | |
| | Get IP VM1 | |
| +------------------>| |
| Tester | | System |
| | Boot VM2 | Under |
| +------------------>| Test |
| | VM2 pings VM1 | |
| | | |
| | Check console log | |
| | If ping: | |
| | exit OK | |
| | else (timeout) | |
| | exit KO | |
| | | |
| | | |
+-------------+ +-------------+
This example, using OpenStack Python clients can be considered as an "Hello World" example and may be modified for future use.
.. _tooling_installation:
----------------------
Tooling installation
----------------------
2 external tools are needed for the functional tests on Arno:
* Rally
* Robot
Rally is used for benchmarking and running Tempest. Robot is used for OpenDaylight.
A script (config_test.py) has been created to simplify as much as possible the installation of the different suites of tests.
This script config_test.py_ is hosted in OPNFV repository and uses the configuration file config_functest.yaml_::
usage: config_functest.py [-h] [-d] [-f] path action
positional arguments:
repo_path path to the repository
action Possible actions are: 'start|check|clean'
optional arguments:
-h, --help show this help message and exit
-d, --debug Debug mode
-f, --force used to avoid prompting the user for confirmation when cleaning functest environment.
Actions
* start: will prepare the functional testing environment
* check: will check the configuration (scenarios available, environment variables properly set, networks,..)
* clean: will clean the functional test environement if existing
This script will:
* Install Rally environment
* Install Tempest
* Retrieve test scenarios
* Setup ODL environment
* Create temporary neutron private network
* Create router to connect both
* Create Glance images
Useful links:
.. _`OpenRC`: http://docs.openstack.org/user-guide/common/cli_set_environment_variables_using_openstack_rc.html
.. _`Rally installation procedure`: https://rally.readthedocs.org/en/latest/tutorial/step_0_installation.html
.. _`config_test.py` : https://git.opnfv.org/cgit/functest/tree/testcases/config_functest.py
.. _`config_functest.yaml` : https://git.opnfv.org/cgit/functest/tree/testcases/config_functest.yaml
When integrated in CI, the only prerequisite consists in retrieving the OpenStack credentials (rc file).
This file shall be saved as $HOME/functest/opnfv-openrc.shn on the jumphost server.
In this case, the script will clone the functest repository, execute environment checks and install tools.
The procedure to set up functional testing environment can be described as follow::
Log on the Jumphost server
Be sure you are no root
Modify and adapt needed parameters in the config_functest.yaml. Follow the instructions below.
Retrieve OpenStack source file (configure your `OpenRC`_ file to let Rally access to your OpenStack, you can either export it from Horizon or build it manually (OpenStack credentials are required)
$ source Your_OpenRC_file
$ python <functest_repo_directory>/config_functest.py -d <Your_functest_directory> start
At the end of the executing, a new directory will be created <functest_repo_directory> with the following structure::
<functest_repo_directory>/ODL
<functest_repo_directory>/Rally_repo
<functest_repo_directory>/Rally_test
<functest_repo_directory>/vPing
<functest_repo_directory>/config_functest.yaml
<functest_repo_directory>/functest-img.img
NOTE: the Rally environment will be installed under ~/.rally/ the default Tempest configuration (automatically generated by Rally based on OpenStack credentials) can be found une .rally/tempest/for-deployment-<deployment_id>/tempest.conf
HOWTO configure config_functest.yaml:
Do not change the directories structure
* image_name: name of the image that will be created in Glance
* image_url: URL of the image to be downloaded
* image_disk_format: glance image disk format (raw, qcow2, ...)
* neutron_private_net_name: name of an OpenStack private network. If not existing, it will be created
* neutron_private_subnet_name: private subnet network to be created if not existing
* neutron_private_subnet_cidr: range of the private subnet.
* neutron_private_subnet_start: start IP
* neutron_private_subnet_end: end IP
* neutron_router_name: name of the router between the private and the public networks
* ping_timeout: time out of the vPing test case
* vm_flavor: name of the flavor used to create the VMs
* vm_name_1: name of the first VM
* vm_name_2: name of the second VM
Please note that you need to install this environment only once. Until the credentials of the System Under Test are not changing, the testing environment shall be fine.
If you need more details on Rally installation, see `Rally installation procedure`_.
You can check if the configuration of rally is fine by typing 'rally deployment check', you shall see the list of available services as follow::
# rally deployment check
keystone endpoints are valid and following service are available:
+-------------+-----------+------------+
| Services | Type | Status |
+-----------+-------------+------------+
| cinder | volume | Available |
| cinderv2 | volumev2 | Available |
| glance | image | Available |
| keystone | identity | Available |
| neutron | network | Available |
| nova | compute | Available |
| nova_ec2 | compute_ec2 | Available |
| novav3 | computev3 | Available |
+-----------+-------------+------------+
# rally show images
+--------------------------------------+----------------------------------------------+------------+
| UUID | Name | Size (B) |
+--------------------------------------+----------------------------------------------+------------+
| 0a15951f-6388-4d5d-8531-79e7205eb140 | cirros_2015_04_10_13_13_18 | 13167616 |
| b1504066-045a-4f8f-8919-8c665ef3f400 | Ubuntu 14.04 64b | 253297152 |
+--------------------------------------+----------------------------------------------+------------+
# rally show flavors
+--------------------------------------+---------------------+-------+----------+-----------+-----------+
| ID | Name | vCPUs | RAM (MB) | Swap (MB) | Disk (GB) |
+--------------------------------------+---------------------+-------+----------+-----------+-----------+
| 110e6375-a058-4af6-b21e-b765187904d2 | m1.medium | 2 | 1024 | | 20 |
| 7084d7e7-415a-455d-a55a-2ad286ddf7c9 | m1.large | 4 | 4096 | | 80 |
| a0345ba7-c667-4fd2-964f-7e98f8cda279 | m1.xlarge | 4 | 8192 | | 200 |
| accdc28c-5e20-4859-a5cc-61cf9009e56d | m1.small | 1 | 512 | | 10 |
+--------------------------------------+---------------------+-------+----------+-----------+-----------+
# rally show networks
Networks for user `admin` in tenant `admin`:
+--------------------------------------+------------------------------+------+
| ID | Label | CIDR |
+--------------------------------------+------------------------------+------+
| 4f43c349-956f-4073-9ef6-75bf4e62a0e7 | functest-net | None |
| faefaab1-e503-41fc-875b-5e3112be49ed | provider_network | None |
+--------------------------------------+------------------------------+------+
--------------
Manual testing
--------------
vPing
=====
$ python <functest_repo_directory>/vPing/vPing.py -d <Your_functest_directory>
OpenDaylight
============
You can run ODL suite as follow:
$ python <functest_repo_directory>testcases/Controllers/ODL/CI/start_tests.sh
ODL wiki page describes system preparation and running tests. See `Integration Group CSIT`_.
.. _`Integration Group CSIT`: https://wiki.opendaylight.org/view/CrossProject:Integration_Group:CSIT
Rally bench suite
=================
Several scenarios are available (mainly based on native Rally scenarios):
* glance
* nova
* authenticate
* keystone
* neutron
* quotas
* request
* tempest
* smoke
* all (every module except tempest and smoke)
You can run the script as follow::
# python <functest_repo_directory>/testcases/VIM/OpenStack/CI/libraries/run_rally.py <functest_repo_directory> keystone
The script will:
* get the json scenario (if not already available) and put it into the scenario folder
* run rally
* generate the html result page into <result_folder>/<timestamp>/opnfv-[module name].html
* generate the json result page into <result_folder>/<timestamp>/opnfv-[module name].json
* generate OK or KO
Tempest suite
=============
It is possible to use Rally to perform Tempest tests (ref: `tempest installation guide using Rally`_)
You just need to run::
# rally verify start
The different modes available are smoke, baremetal, compute, data_processing, identity, image, network, object_storage, orchestration, telemetry, and volume. By default if you do not precise anything then smoke tests be selected by default. For Arno, it was decided to focus on smoke tests.
.. _`tempest installation guide using Rally`: https://www.mirantis.com/blog/rally-openstack-tempest-testing-made-simpler/
.. _manualtest:
--------------
Test results
--------------
vPing
=====
vPing results are automatically displayed in the console.
OpenDaylight
============
ODL tests are executed in the console, and 3 result files are generated
Rally bench suite
=================
Results are available in the result folder through a html page and a json file.
Tempest suite
=============
You can get the results of tempest by typing::
# rally verify list
You shall see the results as follow::
Total results of verification:
+--------------------------------------+--------------------------------------+----------+-------+----------+----------------------------+----------+
| UUID | Deployment UUID | Set name | Tests | Failures | Created at | Status |
+--------------------------------------+--------------------------------------+----------+-------+----------+----------------------------+----------+
| 0144c50f-ab03-45fb-9c36-242ad6440b46 | d9e1bb21-8e36-4d89-b137-0c852dbb308e | smoke | 87 | 32 | 2015-05-05 16:36:00.986003 | finished |
+--------------------------------------+--------------------------------------+----------+-------+----------+----------------------------+----------+
If you run this test several times, you will see as many lines as test attempts.
You can get more details on the test by typing::
# rally verify show --uuid <UUID of the test>
# rally verify detailed --uuid <UUID of the test>
"show" will show you all the restults including the time needed to execute the test.
"detailed" will display additional elements (errors)
Example of test result display::
+------------------------------------------------------------------------------------------------------------------------------------------------------------+-----------+--------+
| name | time | status |
+------------------------------------------------------------------------------------------------------------------------------------------------------------+-----------+--------+
| tempest.api.network.test_routers.RoutersTest.test_create_show_list_update_delete_router[id-f64403e2-8483-4b34-8ccd-b09a87bcc68c,smoke] | 0.011466 | FAIL |
| tempest.api.network.test_security_groups.SecGroupIPv6Test.test_create_list_update_show_delete_security_group[id-bfd128e5-3c92-44b6-9d66-7fe29d22c802,smoke]| 1.234566 | OK |
| tempest.api.network.test_security_groups.SecGroupIPv6Test.test_create_show_delete_security_group_rule[id-cfb99e0e-7410-4a3d-8a0c-959a63ee77e9,smoke] | 1.060221 | OK |
| tempest.api.network.test_security_groups.SecGroupIPv6Test.test_list_security_groups[id-e30abd17-fef9-4739-8617-dc26da88e686,smoke] | 0.060797 | OK |
| tempest.api.network.test_security_groups.SecGroupTest.test_create_list_update_show_delete_security_group[id-bfd128e5-3c92-44b6-9d66-7fe29d22c802,smoke] | 0.685149 | OK |
| tempest.api.network.test_security_groups.SecGroupTest.test_create_show_delete_security_group_rule[id-cfb99e0e-7410-4a3d-8a0c-959a63ee77e9,smoke] | 0.730561 | OK |
| tempest.api.network.test_security_groups.SecGroupTest.test_list_security_groups[id-e30abd17-fef9-4739-8617-dc26da88e686,smoke] | 0.116862 | OK |
| tempest.api.object_storage.test_account_quotas.AccountQuotasTest | 0.0 | SKIP |
| ... | ... | ... |
.. _automatictest:
------------------
Testing Automation
------------------
For Arno, the CI job performs the following actions:
* clean and prepare functest environment
* run Tempest
* run vPing
* run Rally Bench
* run ODL tests
* save results
* clean functest environment
Connection of your platform
===========================
.. _`Octopus procedure`: https://wiki.opnfv.org/octopus/jenkins_slave_connection/
If you want to add your platform to the community automation, please follow the `Octopus procedure`_.
Integrating into CI Pipeline
============================
.. _`pipeline document`: https://wiki.opnfv.org/octopus/pipelines
Contact Octopus Team (#opnfv-octopus) and see `pipeline document`_ for more details.
.. _references:
----------
References
----------
OPNFV main site: opnfvmain_.
OPNFV functional test page: opnfvfunctest_.
IRC support chan: #opnfv-testperf
.. _opnfvmain: http://www.opnfv.org
.. _opnfvfunctest: https://wiki.opnfv.org/opnfv_functional_testing
|
