Remove python2 jobs from zuul for this repo

- Remove the python2 jobs from zuul for this repo
 - Remove python2 entries from test-requirements and tox
 - Removed redundant basepython and other tox.ini entries
 - Updated the upper constraints for the newer python
 - Fix the test-requirements so 'cover' can run
 - Update .gitignore to show a clean repo after running tox
 - Added prettytable to the requirements files
 - Updated the versions of python in setup.cfg

These changes should only affect tox and zuul.
However, since the requirements.txt files were updated, an
ISO was also booted to verify no runtime impact.

Test Plan:
  PASS: Build packages and ISO
  PASS: Boot AIO-SX, bootstrap and unlocked.
  PASS: tox (able to run tox for all 3 tox.ini files)
  PASS: run kube-memory and kube-cpusets on controller

Story: 2010642
Task: 47882
Signed-off-by: Al Bailey <al.bailey@windriver.com>
Change-Id: I4359f3659e75ddfda4208524a6b74360dfe5ee0c

.gitignore

@@ -1 +1,3 @@
 .tox
+.coverage
+.stestr

.zuul.yaml

@@ -5,22 +5,18 @@
     check:
       jobs:
         - openstack-tox-linters
-        - kube-cpusets-tox-py27
         - kube-cpusets-tox-py39
         - kube-cpusets-tox-flake8
         - kube-cpusets-tox-pylint
-        - kube-memory-tox-py27
         - kube-memory-tox-py39
         - kube-memory-tox-flake8
         - kube-memory-tox-pylint
     gate:
       jobs:
         - openstack-tox-linters
-        - kube-cpusets-tox-py27
         - kube-cpusets-tox-py39
         - kube-cpusets-tox-flake8
         - kube-cpusets-tox-pylint
-        - kube-memory-tox-py27
         - kube-memory-tox-py39
         - kube-memory-tox-flake8
         - kube-memory-tox-pylint
@@ -84,20 +80,6 @@
       tox_envlist: py39
       tox_extra_args: -c kube-cpusets/kube-cpusets/tox.ini
 
-- job:
-    name: kube-cpusets-tox-py27
-    parent: tox
-    description: |
-      Run py27 test for kube-cpusets
-    nodeset: ubuntu-bionic
-    required-projects:
-      - starlingx/config
-    files:
-      - kube-cpusets/kube-cpusets/*
-    vars:
-      tox_envlist: py27
-      tox_extra_args: -c kube-cpusets/kube-cpusets/tox.ini
-
 - job:
     name: kube-memory-tox-pylint
     parent: tox
@@ -141,20 +123,6 @@
       tox_envlist: py39
       tox_extra_args: -c kube-memory/kube-memory/tox.ini
 
-- job:
-    name: kube-memory-tox-py27
-    parent: tox
-    description: |
-      Run py27 test for kube-memory
-    nodeset: ubuntu-bionic
-    required-projects:
-      - starlingx/config
-    files:
-      - kube-memory/kube-memory/*
-    vars:
-      tox_envlist: py27
-      tox_extra_args: -c kube-memory/kube-memory/tox.ini
-
 - secret:
     name: stx-monitoring-github-secret
     data:

kube-cpusets/kube-cpusets/requirements.txt

@@ -1,3 +1,4 @@
 # The order of packages is significant, because pip processes them in the order
 # of appearance. Changing the order has an impact on the overall integration
 # process, which may cause wedges in the gate later.
+prettytable

kube-cpusets/kube-cpusets/setup.cfg

@@ -8,11 +8,9 @@ classifier =
     License :: OSI Approved :: Apache Software License
     Operating System :: POSIX :: Linux
     Programming Language :: Python
-    Programming Language :: Python :: 2
-    Programming Language :: Python :: 2.7
     Programming Language :: Python :: 3
-    Programming Language :: Python :: 3.5
     Programming Language :: Python :: 3.6
+    Programming Language :: Python :: 3.9
 
 [files]
 packages =

kube-cpusets/kube-cpusets/test-requirements.txt

@@ -1,10 +1,10 @@
 # The order of packages is significant, because pip processes them in the order
 # of appearance. Changing the order has an impact on the overall integration
 # process, which may cause wedges in the gate later.
-flake8<3.8.0
 hacking>=1.1.0,<=2.0.0 # Apache-2.0
-pylint<2.1.0;python_version<"3.0" # GPLv2
+flake8<3.8.0
-pylint<2.4.0;python_version>="3.0" # GPLv2coverage!=4.4,>=4.0 # Apache-2.0
+pylint<2.4.0;python_version>="3.0" # GPLv2
+coverage!=4.4,>=4.0 # Apache-2.0
 mock>=2.0.0 # BSD
 stestr>=1.0.0 # Apache-2.0
 testtools>=2.2.0 # MIT

kube-cpusets/kube-cpusets/tox.ini

@@ -3,7 +3,7 @@
 # SPDX-License-Identifier: Apache-2.0
 #
 [tox]
-envlist = flake8,py27,py36,py39,pylint,cover
+envlist = flake8,py39,pylint,cover
 minversion = 2.3.2
 skipsdist = True
 stxdir = {toxinidir}/../../..
@@ -22,10 +22,11 @@ setenv = VIRTUAL_ENV={envdir}
          PIP_DISABLE_PIP_VERSION_CHECK=1
 passenv =
     XDG_CACHE_HOME
+basepython = python3
 sitepackages = False
 install_command = pip install \
     -v -v -v \
-    -c{env:UPPER_CONSTRAINTS_FILE:https://opendev.org/openstack/requirements/raw/branch/stable/stein/upper-constraints.txt} \
+    -c{env:UPPER_CONSTRAINTS_FILE:https://opendev.org/starlingx/root/raw/branch/master/build-tools/requirements/debian/upper-constraints.txt} \
     {opts} {packages}
 deps = -r{toxinidir}/requirements.txt
        -r{toxinidir}/test-requirements.txt
@@ -38,20 +39,8 @@ commands =
   stestr run {posargs}
   stestr slowest
 
-[testenv:py27]
-basepython = python2.7
-commands = {[testenv:stestr]commands}
-
-[testenv:py36]
-basepython = python3.6
-commands = {[testenv:stestr]commands}
-
 [testenv:py39]
 basepython = python3.9
-install_command = pip install \
-    -v -v -v \
-    -c{env:UPPER_CONSTRAINTS_FILE:https://opendev.org/starlingx/root/raw/branch/master/build-tools/requirements/debian/upper-constraints.txt} \
-    {opts} {packages}
 commands = {[testenv:stestr]commands}
 
 
@@ -59,7 +48,6 @@ commands = {[testenv:stestr]commands}
 exclude = tests
 
 [testenv:bandit]
-basepython = python3
 deps = -r{toxinidir}/test-requirements.txt
         bandit
 commands = bandit --ini tox.ini -n 5 -r kube_cpusets
@@ -73,8 +61,8 @@ exclude = .venv,.git,.tox,dist,doc,*lib/python*,*egg,build,release-tag-*
 # enable: H904 Delay string interpolations at logging calls (off by default).
 enable-extensions = H106 H203 H904
 max-line-length = 120
+
 [testenv:flake8]
-basepython = python3
 deps = {[testenv]deps}
        flake8-bugbear
 usedevelop = False
@@ -86,11 +74,6 @@ commands =
 basepython = python3.9
 deps = {[testenv]deps}
        pylint
-install_command = pip install \
-    -v -v -v \
-    -c{env:UPPER_CONSTRAINTS_FILE:https://opendev.org/starlingx/root/raw/branch/master/build-tools/requirements/debian/upper-constraints.txt} \
-    {opts} {packages}
-sitepackages = False
 commands = pylint kube_cpusets --rcfile=./pylint.rc
 
 [testenv:cover]

kube-memory/kube-memory/requirements.txt

@@ -1,4 +1,4 @@
 # The order of packages is significant, because pip processes them in the order
 # of appearance. Changing the order has an impact on the overall integration
 # process, which may cause wedges in the gate later.
-
+prettytable

kube-memory/kube-memory/setup.cfg

@@ -8,11 +8,9 @@ classifier =
     License :: OSI Approved :: Apache Software License
     Operating System :: POSIX :: Linux
     Programming Language :: Python
-    Programming Language :: Python :: 2
-    Programming Language :: Python :: 2.7
     Programming Language :: Python :: 3
-    Programming Language :: Python :: 3.5
     Programming Language :: Python :: 3.6
+    Programming Language :: Python :: 3.9
 
 [files]
 packages =

kube-memory/kube-memory/test-requirements.txt

@@ -1,10 +1,10 @@
 # The order of packages is significant, because pip processes them in the order
 # of appearance. Changing the order has an impact on the overall integration
 # process, which may cause wedges in the gate later.
-flake8<3.8.0
 hacking>=1.1.0,<=2.0.0 # Apache-2.0
-pylint<2.1.0;python_version<"3.0" # GPLv2
+flake8<3.8.0
-pylint<2.4.0;python_version>="3.0" # GPLv2coverage!=4.4,>=4.0 # Apache-2.0
+pylint<2.4.0 # GPLv2
+coverage!=4.4,>=4.0 # Apache-2.0
 mock>=2.0.0 # BSD
 stestr>=1.0.0 # Apache-2.0
 testtools>=2.2.0 # MIT

kube-memory/kube-memory/tox.ini

@@ -4,7 +4,7 @@
 # SPDX-License-Identifier: Apache-2.0
 #
 [tox]
-envlist = flake8,py27,py36,py39,pylint,cover
+envlist = flake8,py39,pylint,cover
 minversion = 2.3.2
 skipsdist = True
 stxdir = {toxinidir}/../../..
@@ -21,12 +21,13 @@ setenv = VIRTUAL_ENV={envdir}
          PYTHONHASHSEED=0
          PYTHONWARNINGS=default::DeprecationWarning
          PIP_DISABLE_PIP_VERSION_CHECK=1
+basepython = python3
 passenv =
     XDG_CACHE_HOME
 sitepackages = False
 install_command = pip install \
     -v -v -v \
-    -c{env:UPPER_CONSTRAINTS_FILE:https://opendev.org/openstack/requirements/raw/branch/stable/stein/upper-constraints.txt} \
+    -c{env:UPPER_CONSTRAINTS_FILE:https://opendev.org/starlingx/root/raw/branch/master/build-tools/requirements/debian/upper-constraints.txt} \
     {opts} {packages}
 deps = -r{toxinidir}/requirements.txt
        -r{toxinidir}/test-requirements.txt
@@ -39,26 +40,13 @@ commands =
   stestr run {posargs}
   stestr slowest
 
-[testenv:py27]
-basepython = python2.7
-commands = {[testenv:stestr]commands}
-
-[testenv:py36]
-basepython = python3.6
-commands = {[testenv:stestr]commands}
-
 [testenv:py39]
 basepython = python3.9
-install_command = pip install \
-    -v -v -v \
-    -c{env:UPPER_CONSTRAINTS_FILE:https://opendev.org/starlingx/root/raw/branch/master/build-tools/requirements/debian/upper-constraints.txt} \
-    {opts} {packages}
 commands = {[testenv:stestr]commands}
 
 [bandit]
 exclude = tests
 [testenv:bandit]
-basepython = python3
 deps = -r{toxinidir}/test-requirements.txt
         bandit
 commands = bandit --ini tox.ini -n 5 -r kube_memory
@@ -72,8 +60,8 @@ exclude = .venv,.git,.tox,dist,doc,*lib/python*,*egg,build,release-tag-*
 # enable: H904 Delay string interpolations at logging calls (off by default).
 enable-extensions = H106 H203 H904
 max-line-length = 120
+
 [testenv:flake8]
-basepython = python3
 deps = {[testenv]deps}
        flake8-bugbear
 usedevelop = False
@@ -84,8 +72,6 @@ commands =
 [testenv:pylint]
 deps = {[testenv]deps}
        pylint
-basepython = python3.6
-sitepackages = False
 commands = pylint kube_memory --rcfile=./pylint.rc
 
 [testenv:cover]