Installation and configuration

Alpine containers have been introduced in Euphrates. Alpine allows Functest testing in several very light containers and thanks to the refactoring on dependency management should allow the creation of light and fully customized docker images.

Functest Dockers for OpenStack deployment

Docker images are available on the dockerhub:

  • opnfv/functest-core
  • opnfv/functest-healthcheck
  • opnfv/functest-smoke
  • opnfv/functest-benchmarking
  • opnfv/functest-vnf

Preparing your environment

cat env:

DEPLOY_SCENARIO=XXX  # if not os-nosdn-nofeature-noha scenario
NAMESERVER=XXX  # if not 8.8.8.8
EXTERNAL_NETWORK=XXX # if not first network with router:external=True
NEW_USER_ROLE=XXX # if not member
SDN_CONTROLLER_IP=XXX  # if odl scenario
VOLUME_DEVICE_NAME=XXX  # if not vdb
FLAVOR_EXTRA_SPECS=hw:mem_page_size:large    # if fdio scenarios

See section on environment variables for details.

cat env_file:

export OS_AUTH_URL=XXX
export OS_USER_DOMAIN_NAME=XXX
export OS_PROJECT_DOMAIN_NAME=XXX
export OS_USERNAME=XXX
export OS_PROJECT_NAME=XXX
export OS_PASSWORD=XXX
export OS_IDENTITY_API_VERSION=3
export OS_REGION_NAME=XXX

See section on OpenStack credentials for details.

Create a directory for the different images (attached as a Docker volume):

mkdir -p images && wget -q -O- https://git.opnfv.org/functest/plain/functest/ci/download_images.sh | bash -s -- images && ls -1 images/*

images/cirros-0.4.0-aarch64-disk.img
images/cirros-0.4.0-x86_64-disk.img
images/cloudify-docker-manager-community-19.01.24.tar
images/shaker-image-1.3.0+stretch.qcow2
images/ubuntu-14.04-server-cloudimg-amd64-disk1.img
images/ubuntu-14.04-server-cloudimg-arm64-uefi1.img
images/ubuntu-16.04-server-cloudimg-amd64-disk1.img
images/vyos-1.1.8-amd64.qcow2

Testing healthcheck suite

Run healthcheck suite:

sudo docker run --env-file env \
    -v $(pwd)/openstack.creds:/home/opnfv/functest/conf/env_file \
    -v $(pwd)/images:/home/opnfv/functest/images \
    opnfv/functest-healthcheck

Results shall be displayed as follows:

+--------------------------+------------------+---------------------+------------------+----------------+
|        TEST CASE         |     PROJECT      |         TIER        |     DURATION     |     RESULT     |
+--------------------------+------------------+---------------------+------------------+----------------+
|     connection_check     |     functest     |     healthcheck     |      00:02       |      PASS      |
|      tenantnetwork1      |     functest     |     healthcheck     |      00:06       |      PASS      |
|      tenantnetwork2      |     functest     |     healthcheck     |      00:06       |      PASS      |
|         vmready1         |     functest     |     healthcheck     |      00:06       |      PASS      |
|         vmready2         |     functest     |     healthcheck     |      00:08       |      PASS      |
|        singlevm1         |     functest     |     healthcheck     |      00:28       |      PASS      |
|        singlevm2         |     functest     |     healthcheck     |      00:25       |      PASS      |
|        vping_ssh         |     functest     |     healthcheck     |      00:36       |      PASS      |
|      vping_userdata      |     functest     |     healthcheck     |      00:34       |      PASS      |
|       cinder_test        |     functest     |     healthcheck     |      01:03       |      PASS      |
|      tempest_smoke       |     functest     |     healthcheck     |      05:13       |      PASS      |
|           odl            |     functest     |     healthcheck     |      00:00       |      SKIP      |
+--------------------------+------------------+---------------------+------------------+----------------+

NOTE: the duration is a reference and it might vary depending on your SUT.

Testing smoke suite

Run smoke suite:

sudo docker run --env-file env \
    -v $(pwd)/openstack.creds:/home/opnfv/functest/conf/env_file \
    -v $(pwd)/images:/home/opnfv/functest/images \
    opnfv/functest-smoke

Results shall be displayed as follows:

+------------------------------------+------------------+---------------+------------------+----------------+
|             TEST CASE              |     PROJECT      |      TIER     |     DURATION     |     RESULT     |
+------------------------------------+------------------+---------------+------------------+----------------+
|     neutron-tempest-plugin-api     |     functest     |     smoke     |      09:12       |      PASS      |
|            rally_sanity            |     functest     |     smoke     |      16:29       |      PASS      |
|          refstack_compute          |     functest     |     smoke     |      06:25       |      PASS      |
|          refstack_object           |     functest     |     smoke     |      01:54       |      PASS      |
|         refstack_platform          |     functest     |     smoke     |      06:52       |      PASS      |
|            tempest_full            |     functest     |     smoke     |      30:26       |      PASS      |
|          tempest_scenario          |     functest     |     smoke     |      09:23       |      PASS      |
|            tempest_slow            |     functest     |     smoke     |      24:42       |      PASS      |
|              patrole               |     functest     |     smoke     |      02:36       |      PASS      |
|              barbican              |     functest     |     smoke     |      02:13       |      PASS      |
|           neutron_trunk            |     functest     |     smoke     |      00:00       |      SKIP      |
|         networking-bgpvpn          |     functest     |     smoke     |      00:00       |      SKIP      |
|           networking-sfc           |     functest     |     smoke     |      00:00       |      SKIP      |
|              octavia               |     functest     |     smoke     |      00:00       |      SKIP      |
+------------------------------------+------------------+---------------+------------------+----------------+

Note: if the scenario does not support some tests, they are indicated as SKIP. See User guide for details.

Testing benchmarking suite

Run benchmarking suite:

sudo docker run --env-file env \
    -v $(pwd)/openstack.creds:/home/opnfv/functest/conf/env_file \
    -v $(pwd)/images:/home/opnfv/functest/images \
    opnfv/functest-benchmarking

Results shall be displayed as follows:

+--------------------+------------------+----------------------+------------------+----------------+
|     TEST CASE      |     PROJECT      |         TIER         |     DURATION     |     RESULT     |
+--------------------+------------------+----------------------+------------------+----------------+
|     rally_full     |     functest     |     benchmarking     |      92:16       |      PASS      |
|     rally_jobs     |     functest     |     benchmarking     |      18:49       |      PASS      |
|        vmtp        |     functest     |     benchmarking     |      15:28       |      PASS      |
|       shaker       |     functest     |     benchmarking     |      24:04       |      PASS      |
+--------------------+------------------+----------------------+------------------+----------------+

Note: if the scenario does not support some tests, they are indicated as SKIP. See User guide for details.

Testing vnf suite

Run vnf suite:

sudo docker run --env-file env \
    -v $(pwd)/openstack.creds:/home/opnfv/functest/conf/env_file \
    -v $(pwd)/images:/home/opnfv/functest/images \
    opnfv/functest-vnf

Results shall be displayed as follows:

+----------------------+------------------+--------------+------------------+----------------+
|      TEST CASE       |     PROJECT      |     TIER     |     DURATION     |     RESULT     |
+----------------------+------------------+--------------+------------------+----------------+
|       cloudify       |     functest     |     vnf      |      03:49       |      PASS      |
|     cloudify_ims     |     functest     |     vnf      |      24:20       |      PASS      |
|       heat_ims       |     functest     |     vnf      |      32:13       |      PASS      |
|     vyos_vrouter     |     functest     |     vnf      |      14:55       |      PASS      |
|       juju_epc       |     functest     |     vnf      |      41:24       |      PASS      |
+----------------------+------------------+--------------+------------------+----------------+

Functest Dockers for Kubernetes deployment

Docker images are available on the dockerhub:

  • opnfv/functest-kubernetes-core
  • opnfv/functest-kubernetest-healthcheck
  • opnfv/functest-kubernetest-smoke

Preparing your environment

cat env:

DEPLOY_SCENARIO=k8s-XXX

Testing healthcheck suite

Run healthcheck suite:

sudo docker run -it --env-file env \
    -v $(pwd)/config:/root/.kube/config \
    opnfv/functest-kubernetes-healthcheck

A config file in the current dir ‘config’ is also required, which should be volume mapped to ~/.kube/config inside kubernetes container.

Results shall be displayed as follows:

+-------------------+------------------+---------------------+------------------+----------------+
|     TEST CASE     |     PROJECT      |         TIER        |     DURATION     |     RESULT     |
+-------------------+------------------+---------------------+------------------+----------------+
|     k8s_smoke     |     functest     |     healthcheck     |      01:09       |      PASS      |
+-------------------+------------------+---------------------+------------------+----------------+

Testing smoke suite

Run smoke suite:

sudo docker run -it --env-file env \
    -v $(pwd)/config:/root/.kube/config \
    opnfv/functest-kubernetes-smoke

Results shall be displayed as follows:

+---------------------------+------------------+---------------+------------------+----------------+
|         TEST CASE         |     PROJECT      |      TIER     |     DURATION     |     RESULT     |
+---------------------------+------------------+---------------+------------------+----------------+
|     xrally_kubernetes     |     functest     |     smoke     |      22:04       |      PASS      |
|      k8s_conformance      |     functest     |     smoke     |      173:48      |      PASS      |
+---------------------------+------------------+---------------+------------------+----------------+

Environment variables

Several environement variables may be specified:

  • INSTALLER_IP=<Specific IP Address>
  • DEPLOY_SCENARIO=<vim>-<controller>-<nfv_feature>-<ha_mode>
  • NAMESERVER=XXX # if not 8.8.8.8
  • VOLUME_DEVICE_NAME=XXX # if not vdb
  • EXTERNAL_NETWORK=XXX # if not first network with router:external=True
  • NEW_USER_ROLE=XXX # if not member

INSTALLER_IP is required by Barometer in order to access the installer node and the deployment.

The format for the DEPLOY_SCENARIO env variable can be described as follows:
  • vim: (os|k8s) = OpenStack or Kubernetes
  • controller is one of ( nosdn | odl )
  • nfv_feature is one or more of ( ovs | kvm | sfc | bgpvpn | nofeature )
  • ha_mode (high availability) is one of ( ha | noha )

If several features are pertinent then use the underscore character ‘_’ to separate each feature (e.g. ovs_kvm). ‘nofeature’ indicates that no OPNFV feature is deployed.

The list of supported scenarios per release/installer is indicated in the release note.

NOTE: The scenario name is mainly used to automatically detect if a test suite is runnable or not (e.g. it will prevent ODL test suite to be run on ‘nosdn’ scenarios). If not set, Functest will try to run the default test cases that might not include SDN controller or a specific feature.

NOTE: An HA scenario means that 3 OpenStack controller nodes are deployed. It does not necessarily mean that the whole system is HA. See installer release notes for details.

Finally, three additional environment variables can also be passed in to the Functest Docker Container, using the -e “<EnvironmentVariable>=<Value>” mechanism. The first two parameters are only relevant to Jenkins CI invoked testing and should not be used when performing manual test scenarios:

  • INSTALLER_TYPE=(apex|compass|daisy|fuel)
  • NODE_NAME=<Test POD Name>
  • BUILD_TAG=<Jenkins Build Tag>

where:

  • <Test POD Name> = Symbolic name of the POD where the tests are run.
    Visible in test results files, which are stored to the database. This option is only used when tests are activated under Jenkins CI control. It indicates the POD/hardware where the test has been run. If not specified, then the POD name is defined as “Unknown” by default. DO NOT USE THIS OPTION IN MANUAL TEST SCENARIOS.
  • <Jenkins Build tag> = Symbolic name of the Jenkins Build Job.
    Visible in test results files, which are stored to the database. This option is only set when tests are activated under Jenkins CI control. It enables the correlation of test results, which are independently pushed to the results database from different Jenkins jobs. DO NOT USE THIS OPTION IN MANUAL TEST SCENARIOS.

Openstack credentials

OpenStack credentials are mandatory and must be provided to Functest. When running the command “functest env prepare”, the framework will automatically look for the Openstack credentials file “/home/opnfv/functest/conf/env_file” and will exit with error if it is not present or is empty.

There are 2 ways to provide that file:

  • by using a Docker volume with -v option when creating the Docker container. This is referred to in docker documentation as “Bind Mounting”. See the usage of this parameter in the following chapter.
  • or creating manually the file ‘/home/opnfv/functest/conf/env_file’ inside the running container and pasting the credentials in it. Consult your installer guide for further details. This is however not instructed in this document.

In proxified environment you may need to change the credentials file. There are some tips in chapter: Proxy support

SSL Support

If you need to connect to a server that is TLS-enabled (the auth URL begins with “https”) and it uses a certificate from a private CA or a self-signed certificate, then you will need to specify the path to an appropriate CA certificate to use, to validate the server certificate with the environment variable OS_CACERT:

echo $OS_CACERT
/etc/ssl/certs/ca.crt

However, this certificate does not exist in the container by default. It has to be copied manually from the OpenStack deployment. This can be done in 2 ways:

  1. Create manually that file and copy the contents from the OpenStack controller.

  2. (Recommended) Add the file using a Docker volume when starting the container:

    -v <path_to_your_cert_file>:/etc/ssl/certs/ca.cert
    

You might need to export OS_CACERT environment variable inside the credentials file:

export OS_CACERT=/etc/ssl/certs/ca.crt

Certificate verification can be turned off using OS_INSECURE=true. For example, Fuel uses self-signed cacerts by default, so an pre step would be:

export OS_INSECURE=true

Logs

By default all the logs are put un /home/opnfv/functest/results/functest.log. If you want to have more logs in console, you may edit the logging.ini file manually. Connect on the docker then edit the file located in /usr/lib/python3.7/site-packages/xtesting/ci/logging.ini

Change wconsole to console in the desired module to get more traces.

Configuration

You may also directly modify the python code or the configuration file (e.g. testcases.yaml used to declare test constraints) under /usr/lib/python3.7/site-packages/xtesting and /usr/lib/python3.7/site-packages/functest

Tips

Docker

When typing exit in the container prompt, this will cause exiting the container and probably stopping it. When stopping a running Docker container all the changes will be lost, there is a keyboard shortcut to quit the container without stopping it: <CTRL>-P + <CTRL>-Q. To reconnect to the running container DO NOT use the run command again (since it will create a new container), use the exec or attach command instead:

docker ps  # <check the container ID from the output>
docker exec -ti <CONTAINER_ID> /bin/bash

There are other useful Docker commands that might be needed to manage possible issues with the containers.

List the running containers:

docker ps

List all the containers including the stopped ones:

docker ps -a

Start a stopped container named “FunTest”:

docker start FunTest

Attach to a running container named “StrikeTwo”:

docker attach StrikeTwo

It is useful sometimes to remove a container if there are some problems:

docker rm <CONTAINER_ID>

Use the -f option if the container is still running, it will force to destroy it:

docker rm -f <CONTAINER_ID>

Check the Docker documentation [dockerdocs] for more information.

Checking Openstack and credentials

It is recommended and fairly straightforward to check that Openstack and credentials are working as expected.

Once the credentials are there inside the container, they should be sourced before running any Openstack commands:

source /home/opnfv/functest/conf/env_file

After this, try to run any OpenStack command to see if you get any output, for instance:

openstack user list

This will return a list of the actual users in the OpenStack deployment. In any other case, check that the credentials are sourced:

env|grep OS_

This command must show a set of environment variables starting with OS_, for example:

OS_REGION_NAME=RegionOne
OS_USER_DOMAIN_NAME=Default
OS_PROJECT_NAME=admin
OS_AUTH_VERSION=3
OS_IDENTITY_API_VERSION=3
OS_PASSWORD=da54c27ae0d10dfae5297e6f0d6be54ebdb9f58d0f9dfc
OS_AUTH_URL=http://10.1.0.9:5000/v3
OS_USERNAME=admin
OS_TENANT_NAME=admin
OS_ENDPOINT_TYPE=internalURL
OS_INTERFACE=internalURL
OS_NO_CACHE=1
OS_PROJECT_DOMAIN_NAME=Default

If the OpenStack command still does not show anything or complains about connectivity issues, it could be due to an incorrect url given to the OS_AUTH_URL environment variable. Check the deployment settings.

Proxy support

If your Jumphost node is operating behind a http proxy, then there are 2 places where some special actions may be needed to make operations succeed:

  1. Initial installation of docker engine First, try following the official Docker documentation for Proxy settings. Some issues were experienced on CentOS 7 based Jumphost. Some tips are documented in section: Docker Installation on CentOS behind http proxy below.

If that is the case, make sure the resolv.conf and the needed http_proxy and https_proxy environment variables, as well as the ‘no_proxy’ environment variable are set correctly:

# Make double sure that the 'no_proxy=...' line in the
# 'env_file' file is commented out first. Otherwise, the
# values set into the 'no_proxy' environment variable below will
# be ovewrwritten, each time the command
# 'source ~/functest/conf/env_file' is issued.

cd ~/functest/conf/
sed -i 's/export no_proxy/#export no_proxy/' env_file
source ./env_file

# Next calculate some IP addresses for which http_proxy
# usage should be excluded:

publicURL_IP=$(echo $OS_AUTH_URL | grep -Eo "([0-9]+\.){3}[0-9]+")

adminURL_IP=$(openstack catalog show identity | \
grep adminURL | grep -Eo "([0-9]+\.){3}[0-9]+")

export http_proxy="<your http proxy settings>"
export https_proxy="<your https proxy settings>"
export no_proxy="127.0.0.1,localhost,$publicURL_IP,$adminURL_IP"

# Ensure that "git" uses the http_proxy
# This may be needed if your firewall forbids SSL based git fetch
git config --global http.sslVerify True
git config --global http.proxy <Your http proxy settings>

For example, try to use the nc command from inside the functest docker container:

nc -v opnfv.org 80
Connection to opnfv.org 80 port [tcp/http] succeeded!

nc -v opnfv.org 443
Connection to opnfv.org 443 port [tcp/https] succeeded!

Note: In a Jumphost node based on the CentOS family OS, the nc commands might not work. You can use the curl command instead.

curl https://www.opnfv.org/

<HTML><HEAD><meta http-equiv=”content-type” . . </BODY></HTML>

curl https://www.opnfv.org:443

<HTML><HEAD><meta http-equiv=”content-type” . . </BODY></HTML>

(Ignore the content. If command returns a valid HTML page, it proves the connection.)

Docker Installation on CentOS behind http proxy

This section is applicable for CentOS family OS on Jumphost which itself is behind a proxy server. In that case, the instructions below should be followed before installing the docker engine:

1) # Make a directory '/etc/systemd/system/docker.service.d'
   # if it does not exist
   sudo mkdir /etc/systemd/system/docker.service.d

2) # Create a file called 'env.conf' in that directory with
   # the following contents:
   [Service]
   EnvironmentFile=-/etc/sysconfig/docker

3) # Set up a file called 'docker' in directory '/etc/sysconfig'
   # with the following contents:
   HTTP_PROXY="<Your http proxy settings>"
   HTTPS_PROXY="<Your https proxy settings>"
   http_proxy="${HTTP_PROXY}"
   https_proxy="${HTTPS_PROXY}"

4) # Reload the daemon
   systemctl daemon-reload

5) # Sanity check - check the following docker settings:
   systemctl show docker | grep -i env

   Expected result:
   ----------------
   EnvironmentFile=/etc/sysconfig/docker (ignore_errors=yes)
   DropInPaths=/etc/systemd/system/docker.service.d/env.conf

Now follow the instructions in [Install Docker on CentOS] to download and install the docker-engine. The instructions conclude with a “test pull” of a sample “Hello World” docker container. This should now work with the above pre-requisite actions.