Moving functional jobs to Victoria testing runtime

As per Victoria testing runtime[1], we need to tests py3.6,
py3.7, and py3.8.

- py3.7 is being tested with integration jobs.
- py3.6 and py3.8 are tested with unit test jobs.

Nova functional tests are testing py3.6 which can be moved to the latest
python available in this cycle which is 3.8. We do not need to run functional
or integration tests on each supported python version. Testing them on
the latest python version is enough. Coverage of all supported python version
is achieved via unit tests job.

[1] https://governance.openstack.org/tc/reference/runtimes/victoria.html

Change-Id: I1d6a2986fcb0435cfabdd104d202b65329909d2b

.zuul.yaml

@@ -30,12 +30,12 @@
       - ^tox.ini$
 
 - job:
-    name: nova-tox-functional-py36
-    parent: openstack-tox-functional-py36
+    name: nova-tox-functional-py38
+    parent: openstack-tox-functional-py38
     description: |
       Run tox-based functional tests for the OpenStack Nova project
-      under cPython version 3.6 with Nova specific irrelevant-files list.
-      Uses tox with the ``functional-py36`` environment.
+      under cPython version 3.8 with Nova specific irrelevant-files list.
+      Uses tox with the ``functional-py38`` environment.
 
       This job also provides a parent for other projects to run the nova
       functional tests on their own changes.
@@ -53,29 +53,7 @@
       # explicitly stating the work dir makes this job reusable by other
       # projects
       zuul_work_dir: src/opendev.org/openstack/nova
-      bindep_profile: test py36
-    timeout: 3600
-
-- job:
-    name: nova-tox-functional-py37
-    parent: openstack-tox-functional-py37
-    description: |
-      Run tox-based functional tests for the OpenStack Nova project
-      under cPython version 3.7 with Nova specific irrelevant-files list.
-      Uses tox with the ``functional-py37`` environment.
-
-      This job also provides a parent for other projects to run the nova
-      functional tests on their own changes.
-    required-projects:
-      # including nova here makes this job reusable by other projects
-      - openstack/nova
-      - openstack/placement
-    irrelevant-files: *functional-irrelevant-files
-    vars:
-      # explicitly stating the work dir makes this job reusable by other
-      # projects
-      zuul_work_dir: src/opendev.org/openstack/nova
-      bindep_profile: test py37
+      bindep_profile: test py38
     timeout: 3600
 
 - job:
@@ -377,7 +355,7 @@
         - nova-lvm
         - nova-multi-cell
         - nova-next
-        - nova-tox-functional-py36
+        - nova-tox-functional-py38
         - tempest-integrated-compute:
             # NOTE(gmann): Policies changes do not need to run all the
             # integration test jobs. Running only tempest and grenade
@@ -410,7 +388,7 @@
       jobs:
         - nova-grenade-multinode
         - nova-live-migration
-        - nova-tox-functional-py36
+        - nova-tox-functional-py38
         - nova-multi-cell
         - nova-next
         - tempest-integrated-compute:
@@ -452,9 +430,6 @@
             irrelevant-files: *dsvm-irrelevant-files
         - os-vif-ovs:
             irrelevant-files: *dsvm-irrelevant-files
-        # NOTE(mriedem): Consider moving nova-tox-functional-py37 to the
-        # check and gate queues once it's stable (like openstack-python37-jobs)
-        - nova-tox-functional-py37
         - devstack-platform-fedora-latest:
             irrelevant-files: *dsvm-irrelevant-files
         - devstack-platform-fedora-latest-virt-preview:

setup.cfg

@@ -17,6 +17,7 @@ classifier =
     Programming Language :: Python :: 3
     Programming Language :: Python :: 3.6
     Programming Language :: Python :: 3.7
+    Programming Language :: Python :: 3.8
     Programming Language :: Python :: 3 :: Only
     Programming Language :: Python :: Implementation :: CPython
 

tox.ini

@@ -1,6 +1,6 @@
 [tox]
 minversion = 3.1.1
-envlist = py37,functional,pep8
+envlist = py38,functional,pep8
 # Automatic envs (pyXX) will only use the python version appropriate to that
 # env and ignore basepython inherited from [testenv] if we set
 # ignore_basepython_conflict.
@@ -102,6 +102,13 @@ deps = {[testenv:functional]deps}
 commands =
   {[testenv:functional]commands}
 
+[testenv:functional-py38]
+description =
+  Run functional tests using python3.8.
+deps = {[testenv:functional]deps}
+commands =
+  {[testenv:functional]commands}
+
 [testenv:api-samples]
 setenv =
   {[testenv]setenv}