Drop python 2.7 support and testing

OpenStack is dropping the py2.7 support in ussuri cycle.

python-ironicclient is ready with python 3 and ok to drop the
python 2.7 support.

Complete discussion & schedule can be found in
- http://lists.openstack.org/pipermail/openstack-discuss/2019-October/010142.html
- https://etherpad.openstack.org/p/drop-python2-support

Ussuri Communtiy-wide goal - https://review.opendev.org/#/c/691178/

Change-Id: Iacc50fde00f0d24e9c6ee2b1ac61b8fa060094fb

.gitignore

@@ -6,7 +6,7 @@
 
 # Sphinx
 _build
-doc/source/api/
+doc/source/reference/api/
 
 # Release notes
 releasenotes/build

doc/requirements.txt

@@ -3,6 +3,5 @@
 # process, which may cause wedges in the gate later.
 openstackdocstheme>=1.20.0 # Apache-2.0
 reno>=2.5.0 # Apache-2.0
-sphinx!=1.6.6,!=1.6.7,>=1.6.2,<2.0.0;python_version=='2.7' # BSD
 sphinx!=1.6.6,!=1.6.7,>=1.6.2;python_version>='3.4' # BSD
 sphinxcontrib-apidoc>=0.2.0  # BSD

playbooks/functional/run.yaml

@@ -44,12 +44,7 @@
           export IRONICCLIENT_TEST_CONFIG=$CONFIG_FILE
 
           cd $IRONICCLIENT_DIR
-          if [[ $USE_PYTHON3 == "True" ]]; then
-            echo 'Running Functional Tests under Python3'
-            tox -e functionalpy3
-          else
-            echo 'Running Functional Tests under Python2'
-            tox -e functional
-          fi
+          echo 'Running Functional Tests under Python3'
+          tox -e functionalpy3
         executable: /bin/bash
         chdir: '/opt/stack/python-ironicclient'

releasenotes/notes/drop-py-2-7-b0b950c0c2b6a667.yaml

@@ -0,0 +1,6 @@
+---
+upgrade:
+  - |
+    Python 2.7 support has been dropped. Last release of python-ironicclient
+    to support Python 2.7 is OpenStack Train. The minimum version of
+    Python now supported by python-ironicclient is Python 3.6.

setup.cfg

@@ -12,8 +12,6 @@ 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 :: 3.6
     Programming Language :: Python :: 3.7

tox.ini

@@ -1,9 +1,10 @@
 [tox]
 minversion = 2.0
-envlist = py3,py27,pep8,pypy
+envlist = py3,pep8,pypy
 skipsdist = True
 
 [testenv]
+basepython = python3
 setenv = VIRTUAL_ENV={envdir}
          PYTHONDONTWRITEBYTECODE = 1
          LANGUAGE=en_US
@@ -19,7 +20,6 @@ commands =
     stestr run {posargs}
 
 [testenv:releasenotes]
-basepython = python3
 deps =
   -c{env:UPPER_CONSTRAINTS_FILE:https://releases.openstack.org/constraints/upper/master}
   -r{toxinidir}/requirements.txt
@@ -27,13 +27,11 @@ deps =
 commands = sphinx-build -a -E -W -d releasenotes/build/doctrees -b html releasenotes/source releasenotes/build/html
 
 [testenv:pep8]
-basepython = python3
 commands =
     flake8 {posargs}
     doc8 doc/source CONTRIBUTING.rst README.rst
 
 [testenv:cover]
-basepython = python3
 setenv = {[testenv]setenv}
          PYTHON=coverage run --source ironicclient --omit='*tests*' --parallel-mode
 commands =
@@ -44,7 +42,6 @@ commands =
   coverage html -d ./cover --omit='*tests*'
 
 [testenv:venv]
-basepython = python3
 deps =
   -c{env:UPPER_CONSTRAINTS_FILE:https://releases.openstack.org/constraints/upper/master}
   -r{toxinidir}/test-requirements.txt
@@ -52,21 +49,13 @@ deps =
   -r{toxinidir}/doc/requirements.txt
 commands = {posargs}
 
-[testenv:functional]
-passenv = *
-setenv = TESTS_DIR=./ironicclient/tests/functional
-         LANGUAGE=en_US
-         OS_TESTENV_NAME = {envname}
-
 [testenv:functionalpy3]
-basepython = python3
 passenv = *
 setenv = TESTS_DIR=./ironicclient/tests/functional
          LANGUAGE=en_US
          OS_TESTENV_NAME = {envname}
 
 [testenv:docs]
-basepython = python3
 deps =
   -c{env:UPPER_CONSTRAINTS_FILE:https://releases.openstack.org/constraints/upper/master}
   -r{toxinidir}/requirements.txt
@@ -75,7 +64,6 @@ commands =
   sphinx-build -W -b html doc/source doc/build/html
 
 [testenv:pdf-docs]
-basepython = python3
 whitelist_externals = make
 deps = {[testenv:docs]deps}
 commands =
@@ -97,7 +85,6 @@ enable-extensions=H106,H203,H204,H205,H210,H904
 import_exceptions = testtools.matchers, ironicclient.common.i18n
 
 [testenv:lower-constraints]
-basepython = python3
 deps =
   -c{toxinidir}/lower-constraints.txt
   -r{toxinidir}/test-requirements.txt

zuul.d/ironicclient-jobs.yaml

@@ -35,16 +35,6 @@
         mysql: True
         rabbit: True
 
-# NOTE(iurygregory): drop when the time comes
-- job:
-    name: ironicclient-functional-python2
-    parent: ironicclient-functional
-    post-run: playbooks/functional/run.yaml
-    vars:
-      tox_envlist: functional
-      devstack_localrc:
-        USE_PYTHON3: False
-
 - job:
     name: ironicclient-tempest
     parent: ironic-base
@@ -54,11 +44,3 @@
     vars:
       devstack_localrc:
         EBTABLES_RACE_FIX: True
-
-# NOTE(iurygregory): drop when the time comes
-- job:
-    name: ironicclient-tempest-python2
-    parent: ironicclient-tempest
-    vars:
-      devstack_localrc:
-        USE_PYTHON3: False

zuul.d/project.yaml

@@ -3,7 +3,6 @@
       - check-requirements
       - openstack-cover-jobs
       - openstack-lower-constraints-jobs
-      - openstack-python-jobs
       - openstack-python3-ussuri-jobs
       - openstackclient-plugin-jobs
       - publish-openstack-docs-pti
@@ -11,13 +10,9 @@
     check:
       jobs:
         - ironicclient-functional
-        - ironicclient-functional-python2
         - ironicclient-tempest
-        - ironicclient-tempest-python2
     gate:
       queue: ironic
       jobs:
         - ironicclient-functional
-        - ironicclient-functional-python2
         - ironicclient-tempest
-        - ironicclient-tempest-python2