.. _functest-userguide:
.. This work is licensed under a Creative Commons Attribution 4.0 International License.
.. SPDX-License-Identifier: CC-BY-4.0
=========================
OPNFV FUNCTEST user guide
=========================
.. toctree::
:maxdepth: 2
Version history
===============
+------------+----------+------------------+----------------------------------+
| **Date** | **Ver.** | **Author** | **Comment** |
| | | | |
+------------+----------+------------------+----------------------------------+
| 2016-08-17 | 1.0.0 | Juha Haapavirta | Colorado release |
| | | Column Gaynor | |
+------------+----------+------------------+----------------------------------+
| 2017-01-23 | 1.0.1 | Morgan Richomme | Adaptations for Danube |
| | | | |
| | | | |
+------------+----------+------------------+----------------------------------+
Introduction
============
The goal of this document is to describe the OPNFV Functest test cases and to
provide a procedure to execute them. In the OPNFV Danube system release,
a Functest CLI utility is introduced for an easier execution of test procedures.
**IMPORTANT**: It is assumed here that the Functest Docker container is already
properly deployed and that all instructions described in this guide are to be
performed from *inside* the deployed Functest Docker container.
.. include:: ./introduction.rst
The different test cases are described in the remaining sections of this document.
VIM (Virtualized Infrastructure Manager)
----------------------------------------
Healthcheck tests
^^^^^^^^^^^^^^^^^
In Danube, healthcheck tests have been refactored and rely on SNAPS, a
OPNFV middleware project.
SNAPS stands for "SDN/NFV Application development Platform and Stack".
SNAPS is an object-oriented OpenStack library packaged with tests that exercise
OpenStack.
More information on SNAPS can be found in `[13]`_
Three tests are declared as healthcheck tests and can be used for gating by the
installer, they cover functionally the tests previously done by healthcheck
test case.
The tests are:
* *connection_check*
* *api_check*
* *snaps_health_check*
Connection_check consists in 9 test cases (test duration < 5s) checking the
connectivity with Glance, Keystone, Neutron, Nova and the external network.
Api_check verifies the retrieval of OpenStack clients: Keystone, Glance,
Neutron and Nova and may perform some simple queries. When the config value of
snaps.use_keystone is True, functest must have access to the cloud's private
network. This suite consists in 49 tests (test duration < 2 minutes).
snaps_health_check creates instance, allocate floating IP, connect to the VM.
This test replaced the previous Colorado healthcheck test.
Self-obviously, successful completion of the 'healthcheck' testcase is a
necessary pre-requisite for the execution of all other test Tiers.
vPing_ssh
^^^^^^^^^
Given the script **ping.sh**::
#!/bin/sh
while true; do
ping -c 1 $1 2>&1 >/dev/null
RES=$?
if [ "Z$RES" = "Z0" ] ; then
echo 'vPing OK'
break
else
echo 'vPing KO'
fi
sleep 1
done
The goal of this test is to establish an SSH connection using a floating IP
on the Public/External network and verify that 2 instances can talk over a Private
Tenant network::
vPing_ssh test case
+-------------+ +-------------+
| | | |
| | Boot VM1 with IP1 | |
| +------------------->| |
| Tester | | System |
| | Boot VM2 | Under |
| +------------------->| Test |
| | | |
| | Create floating IP | |
| +------------------->| |
| | | |
| | Assign floating IP | |
| | to VM2 | |
| +------------------->| |
| | | |
| | Establish SSH | |
| | connection to VM2 | |
| | through floating IP| |
| +------------------->| |
| | | |
| | SCP ping.sh to VM2 | |
| +------------------->| |
| | | |
| | VM2 executes | |
| | ping.sh to VM1 | |
| +------------------->| |
| | | |
| | If ping: | |
| | exit OK | |
| | else (timeout): | |
| | exit Failed | |
| | | |
+-------------+ +-------------+
This test can be considered as an "Hello World" example.
It is the first basic use case which **must** work on any deployment.
vPing_userdata
^^^^^^^^^^^^^^
This test case is similar to vPing_ssh but without the use of Floating IPs
and the Public/External network to transfer the ping script.
Instead, it uses Nova metadata service to pass it to the instance at booting time.
As vPing_ssh, it checks that 2 instances can talk to
each other on a Private Tenant network::
vPing_userdata test case
+-------------+ +-------------+
| | | |
| | Boot VM1 with IP1 | |
| +------------------->| |
| | | |
| | Boot VM2 with | |
| | ping.sh as userdata| |
| | with IP1 as $1. | |
| +------------------->| |
| Tester | | System |
| | VM2 exeutes ping.sh| Under |
| | (ping IP1) | Test |
| +------------------->| |
| | | |
| | Monitor nova | |
| | console-log VM 2 | |
| | If ping: | |
| | exit OK | |
| | else (timeout) | |
| | exit Failed | |
| | | |
+-------------+ +-------------+
When the second VM boots it will execute the script passed as userdata
automatically. The ping will be detected by periodically capturing the output
in the console-log of the second VM.
Tempest
^^^^^^^
Tempest `[2]`_ is the reference OpenStack Integration test suite.
It is a set of integration tests to be run against a live OpenStack cluster.
Tempest has suites of tests for:
* OpenStack API validation
* Scenarios
* Other specific tests useful in validating an OpenStack deployment
Functest uses Rally `[3]`_ to run the Tempest suite.
Rally generates automatically the Tempest configuration file **tempest.conf**.
Before running the actual test cases,
Functest creates the needed resources (user, tenant) and
updates the appropriate parameters into the configuration file.
When the Tempest suite is executed, each test duration is measured and the full
console output is stored to a *log* file for further analysis.
The Tempest testcases are distributed accross two
Tiers:
* Smoke Tier - Test Case 'tempest_smoke_serial'
* Components Tier - Test case 'tempest_full_parallel'
NOTE: Test case 'tempest_smoke_serial' executes a defined set of tempest smoke
tests with a single thread (i.e. serial mode). Test case 'tempest_full_parallel'
executes{
"__inputs": [
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"name": "DS_YARDSTICK",
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"type": "datasource",
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{
"content": "<h5 style=\"font-family:Verdana\"> <a style=\"color:#31A7D3\"><a style=\"font: 22px '#31A7D3'\"><center>Prox ACL VNF stats</center> </a></h5>\n",
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{
"params": [
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{
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],
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},
{
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{
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],
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},
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},
{
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"fillColor": "rgba(234, 112, 112, 0.22)",
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}
],
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"title": "ACL VNF stats",
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},
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},
{
"content": "<h5 style=\"font-family:Verdana\"> <a style=\"color:#31A7D3\"><a style=\"font: 22px '#31A7D3'\"><center>Prox ACL Traffic Gen stats</center> </a></h5>\n",
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{
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"panels": [
{
"aliasColors": {},
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"targets": [
{
"alias": "TG xe-0 Out packets",
"dsType": "influxdb",
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{
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],
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},
{
"params": [
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],
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}
],
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[
{
"params": [
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],
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},
{
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}
]
],
"tags": []
},
{
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"dsType": "influxdb",
"groupBy": [
{
"params": [
"$interval"
],
"type": "time"
},
{
"params": [
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],
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],
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"select": [
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{
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],
"type": "field"
},
{
"params": [],
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}
]
],
"tags": []
},
{
"alias": "TG xe-2 Out packets",
"dsType": "influxdb",
"groupBy": [
{
"params": [
"$interval"
],
"type": "time"
},
{
"params": [
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],
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}
],
"measurement": "tc_prox_baremetal_acl-4",
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{
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],
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{
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}
]
],
"tags": []
},
{
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"dsType": "influxdb",
"groupBy": [
{
"params": [
"$interval"
],
"type": "time"
},
{
"params": [
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],
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}
],
"measurement": "tc_prox_baremetal_acl-4",
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{
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{
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]
],
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}
],
"thresholds": [
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},
{
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}
],
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{
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]
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},
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{
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],
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],
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},
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{
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"editable": true,
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"targets": [
{
"alias": "TG TX Throughput",
"dsType": "influxdb",
"groupBy": [
{
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"$interval"
],
"type": "time"
},
{
"params": [
"null"
],
"type": "fill"
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],
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"orderByTime": "ASC",
"policy": "default",
"refId": "A",
"resultFormat": "time_series",
"select": [
[
{
"params": [
"tg__0.TxThroughput"
],
"type": "field"
},
{
"params": [],
"type": "mean"
}
]
],
"tags": []
},
{
"alias": "TG RX Throughput",
"dsType": "influxdb",
"groupBy": [
{
"params": [
"$interval"
],
"type": "time"
},
{
"params": [
"null"
],
"type": "fill"
}
],
"measurement": "tc_prox_baremetal_acl-4",
"orderByTime": "ASC",
"policy": "default",
"refId": "B",
"resultFormat": "time_series",
"select": [
[
{
"params": [
"tg__0.RxThroughput"
],
"type": "field"
},
{
"params": [],
"type": "mean"
}
]
],
"tags": []
}
],
"thresholds": [
{
"colorMode": "custom",
"fill": true,
"fillColor": "rgba(216, 200, 27, 0.27)",
"op": "gt",
"value": 2.5
},
{
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