Functest

Network virtualization has dramatically modified our architectures which asks for more automation and powerful testing tools like Functest, a collection of state-of-the-art virtual infrastructure test suites, including automatic VNF testing (cf. [1]).

In context of OPNFV, Functest verifies any kind of OpenStack and Kubernetes deployments including production environments. It conforms to upstream rules and integrates smoothly lots of the test cases available in the opensource market. It includes about 3000+ functional tests and 3 hours upstream API and dataplane benchmarks. It’s completed by Virtual Network Function deployments and testing (vIMS, vRouter and vEPC) to ensure that the platforms meet Network Functions Virtualization requirements. Raspberry PI is also supported to verify datacenters as the lowest cost (50 euros hardware and software included).

Functest releases	Kubernetes releases
v1.28	v1.28
v1.29	v1.29
v1.30	v1.30
v1.31	v1.31
Master	latest

Prepare your environment

cat env

DEPLOY_SCENARIO=k8s-XXX

Run healthcheck suite

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

+-------------------+------------------+---------------------+------------------+----------------+
|     TEST CASE     |     PROJECT      |         TIER        |     DURATION     |     RESULT     |
+-------------------+------------------+---------------------+------------------+----------------+
|     k8s_quick     |     functest     |     healthcheck     |      00:04       |      PASS      |
|     k8s_smoke     |     functest     |     healthcheck     |      00:18       |      PASS      |
+-------------------+------------------+---------------------+------------------+----------------+

Run smoke suite

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

+----------------------------------+------------------+---------------+------------------+----------------+
|            TEST CASE             |     PROJECT      |      TIER     |     DURATION     |     RESULT     |
+----------------------------------+------------------+---------------+------------------+----------------+
|        xrally_kubernetes         |     functest     |     smoke     |      09:32       |      PASS      |
|         k8s_conformance          |     functest     |     smoke     |      13:08       |      PASS      |
|      k8s_conformance_serial      |     functest     |     smoke     |      12:14       |      PASS      |
|        sig_api_machinery         |     functest     |     smoke     |      02:14       |      PASS      |
|     sig_api_machinery_serial     |     functest     |     smoke     |      01:41       |      PASS      |
|             sig_apps             |     functest     |     smoke     |      03:33       |      PASS      |
|         sig_apps_serial          |     functest     |     smoke     |      03:36       |      PASS      |
|             sig_auth             |     functest     |     smoke     |      09:04       |      PASS      |
|      sig_cluster_lifecycle       |     functest     |     smoke     |      00:22       |      PASS      |
|       sig_instrumentation        |     functest     |     smoke     |      00:03       |      PASS      |
|           sig_network            |     functest     |     smoke     |      04:32       |      PASS      |
|             sig_node             |     functest     |     smoke     |      28:56       |      PASS      |
|      sig_scheduling_serial       |     functest     |     smoke     |      05:53       |      PASS      |
|           sig_storage            |     functest     |     smoke     |      19:03       |      PASS      |
|        sig_storage_serial        |     functest     |     smoke     |      01:10       |      PASS      |
+----------------------------------+------------------+---------------+------------------+----------------+

Run security suite

sudo docker run --env-file env \
    -v $(pwd)/config:/home/xtesting/.kube/config \
    opnfv/functest-kubernetes-security

+---------------------------+------------------+------------------+------------------+----------------+
|         TEST CASE         |     PROJECT      |       TIER       |     DURATION     |     RESULT     |
+---------------------------+------------------+------------------+------------------+----------------+
|        kube_hunter        |     functest     |     security     |      00:37       |      PASS      |
|     kube_bench_master     |     functest     |     security     |      00:07       |      PASS      |
|      kube_bench_node      |     functest     |     security     |      00:06       |      PASS      |
+---------------------------+------------------+------------------+------------------+----------------+

Run benchmarking suite

sudo docker run --env-file env \
    -v $(pwd)/config:/home/xtesting/.kube/config \
    opnfv/functest-kubernetes-benchmarking

+--------------------------------+------------------+----------------------+------------------+----------------+
|           TEST CASE            |     PROJECT      |         TIER         |     DURATION     |     RESULT     |
+--------------------------------+------------------+----------------------+------------------+----------------+
|     xrally_kubernetes_full     |     functest     |     benchmarking     |      25:32       |      PASS      |
|            netperf             |     functest     |     benchmarking     |      41:15       |      PASS      |
+--------------------------------+------------------+----------------------+------------------+----------------+

Run cnf suite

sudo docker run --env-file env \
    -v $(pwd)/config:/home/xtesting/.kube/config \
    opnfv/functest-kubernetes-cnf

+-----------------------+------------------+--------------+------------------+----------------+
|       TEST CASE       |     PROJECT      |     TIER     |     DURATION     |     RESULT     |
+-----------------------+------------------+--------------+------------------+----------------+
|        k8s_vims       |     functest     |     cnf      |      10:02       |      PASS      |
|       helm_vims       |     functest     |     cnf      |      08:10       |      PASS      |
|     cnf_testsuite     |     functest     |     cnf      |      18:29       |      PASS      |
+-----------------------+------------------+--------------+------------------+----------------+

Use on air gap environments (no access to Internet)

To test a Kubernetes without access to Internet, repository mirrors needs to be provided.

Currently, all tests supports this feature except cnf conformance.

There's two ways for providing the repository mirrors:

• Give an environment variable (MIRROR_REPO) which gives a repository with all needed images.
• Gives an environment variable per needed repo:
  • DOCKERHUB_REPO for DockerHub repository (docker.io)
  • GCR_REPO for Google Cloud repository (gcr.io)
  • K8S_GCR_REPO for Kubernetes repository (k8s.gcr.io)
  • QUAY_REPO for Quay repository (quay.io)

All needed images are given in functest_kubernetes/ci/images.txt

For e2e tests, docker.io is hardcoded. it does mean that you'll have to set up a mirror on docker. An example on how to set it up on docker daemon is provided here: daemon-configuration-file