py3: Add support for python 3.9

Add support for Debian bullseye which runs python3.9.
This was tested by running tox locally on a Debian bullseye
VM.

Story: 2006796
Task: 42941

Signed-off-by: Charles Short <charles.short@windriver.com>
Change-Id: I5568b85a365104fdbca2af7adcf9f289001baea0

.zuul.yaml

@@ -15,6 +15,7 @@
         - stx-fault-build
         - fault-rest-api-py27
         - fault-rest-api-py36
+        - fault-rest-api-py39
     gate:
       jobs:
         - openstack-tox-linters
@@ -22,6 +23,7 @@
         - fault-tox-pylint
         - fault-rest-api-py27
         - fault-rest-api-py36
+        - fault-rest-api-py39
     post:
       jobs:
         - stx-fault-upload-git-mirror
@@ -82,6 +84,20 @@
       tox_envlist: py36
       tox_extra_args: -c fm-rest-api/fm/tox.ini
 
+- job:
+    name: fault-rest-api-py39
+    parent: tox-py39
+    description: |
+      Run py39 test for fm-rest-api
+    nodeset: debian-bullseye
+    required-projects:
+      - starlingx/config
+    vars:
+      bindep_profile: test py39
+      python_version: 3.9
+      tox_envlist: py39
+      tox_extra_args: -c fm-rest-api/fm/tox.ini
+
 - job:
     name: fault-tox-pylint
     parent: tox

bindep.txt

@@ -1,2 +1,10 @@
-diffutils
-rpm
+# This is a cross-platform list tracking distribution packages needed for install and tests;
+# see https://docs.openstack.org/infra/bindep/ for additional information.
+
+libffi-dev [platform:dpkg]
+libldap2-dev [platform:dpkg]
+libxml2-dev [platform:dpkg]
+libxslt1-dev [platform:dpkg]
+libsasl2-dev [platform:dpkg]
+libffi-devel [platform:rpm]
+python3-all-dev [platform:dpkg]

fm-rest-api/fm/test-requirements.txt

@@ -22,4 +22,4 @@ keystonemiddleware>=4.12.0  # Apache-2.0
 pecan>=1.0.0
 WSME>=0.5b2
 httplib2
-keyring <= 18.0.1
+keyring <= 22.0.1

fm-rest-api/fm/tox.ini

@@ -1,5 +1,5 @@
 [tox]
-envlist = py27,py36
+envlist = py27,py36,py39
 minversion = 2.3
 skipsdist = True
 stxdir = {toxinidir}/../../../
@@ -33,6 +33,18 @@ commands =
   stestr run {posargs}
   stestr slowest
 
+[testenv:py39]
+basepython = python3.9
+deps = -chttps://opendev.org/starlingx/root/raw/branch/master/build-tools/requirements/debian/upper-constraints.txt
+       -r{toxinidir}/test-requirements.txt
+       -e{[tox]stxdir}/config/tsconfig/tsconfig
+       -e{[tox]stxdir}/config/sysinv/cgts-client/cgts-client
+       -e{[tox]stxdir}/fault/fm-api
+       -e{[tox]stxdir}/fault/fm-rest-api/fm
+commands =
+  stestr run {posargs}
+  stestr slowest
+
 [testenv:cover]
 deps = {[testenv]deps}
        coverage
@@ -46,3 +58,12 @@ commands =
    coverage html -d cover
    coverage xml -o cover/coverage.xml
    coverage report
+
+[testenv:bindep]
+# Do not install any requirements. We want this to be fast and work even if
+# system dependencies are missing, since it's used to tell you what system
+# dependencies are missing! This also means that bindep must be installed
+# separately, outside of the requirements files.
+skip_install = True
+deps = bindep
+commands = bindep test