CI: Add ansible-lint to tox

* Reworked tox pep8 into linters job, that runs:
  - pep8
  - bandit
  - bashate
  - doc8
  - yamllint
  - ansible-lint (validate-all-files.py + ansible-lint)

* Skip E701 - missing galaxy_info in meta and E602 see [1].
* Skip E301 and E503 - followup later in a separate change
* Added ansible-role-jobs to zuul.d/project.yaml which will run
  openstack-tox-linters job in check queue
* Fixed remaining style issue
* Made tox and docs reference the new env for linters
* Dropped pype environment (not supported)

[1]: https://github.com/ansible/ansible-lint/issues/457

Change-Id: I494b4b151804aac8173120e6c6e42bc2fdb00234

.ansible-lint

+use_default_rules: true
+skip_list:
+# [E701] galaxy_info missing in metadata
+  - '701'
+# [E602] https://github.com/ansible/ansible-lint/issues/457
+  - '602'
+# [E301] Commands should not change things if nothing needs doing
+# TODO(mnasiadka): Fix tasks that fail this check in a later iteration
+  - '301'
+# [E503] Tasks that run when changed should likely be handlers
+# TODO(mnasiadka): Rework baremetal role to do handlers instead of when: *.changed
+  - '503'
\ No newline at end of file

ansible/roles/prometheus/tasks/config.yml

@@ -197,7 +197,7 @@
         - Restart prometheus-server container
   vars:
     base: "{{ node_custom_config }}/prometheus/"
-    service: "{{ prometheus_services['prometheus-server']}}"
+    service: "{{ prometheus_services['prometheus-server'] }}"
   when:
     - inventory_hostname in groups[service.group]
     - service.enabled | bool

doc/source/contributor/running-tests.rst

@@ -28,6 +28,12 @@ so the only package you install is ``tox`` itself:
 For more information, see `the unit testing section of the Testing wiki page
 <https://wiki.openstack.org/wiki/Testing#Unit_Tests>`_. For example:
 
+To run the default set of tests:
+
+.. code-block:: console
+
+   tox
+
 To run the Python 3.7 tests:
 
 .. code-block:: console
@@ -38,13 +44,13 @@ To run the style tests:
 
 .. code-block:: console
 
-   tox -e pep8
+   tox -e linters
 
 To run multiple tests separate items by commas:
 
 .. code-block:: console
 
-   tox -e py37,pep8
+   tox -e py37,linters
 
 Running a subset of tests
 -------------------------

test-requirements.txt

 # linting
+ansible-lint>=4.2.0 # MIT
 bandit>=1.1.0 # Apache-2.0
 bashate>=0.5.1 # Apache-2.0
 doc8>=0.6.0 # Apache-2.0
 hacking>=3.0.1,<3.1.0 # Apache-2.0
+yamllint>=1.22.0 #GPL3
 
 # coverage testing
 coverage!=4.4,>=4.0 # Apache-2.0

tox.ini

 [tox]
 minversion = 3.1
 skipsdist = True
-envlist = py37,pep8,pypy
+envlist = py37,linters
 ignore_basepython_conflict = True
 
 [testenv]
 basepython = python3
-usedevelop=True
+usedevelop = True
 whitelist_externals = find
                       rm
 deps = -c{env:UPPER_CONSTRAINTS_FILE:https://releases.openstack.org/constraints/upper/master}
@@ -31,29 +31,10 @@ setenv = VIRTUAL_ENV={envdir}
          NOSE_COVER_HTML_DIR={toxinidir}/cover
          PYTHON=coverage run --source kolla_ansible,ansible/action_plugins,ansible/library,ansible/roles/keystone/files/ --parallel-mode
 commands =
-    stestr run {posargs}
-    coverage combine
-    coverage html -d cover
-    coverage xml -o cover/coverage.xml
-
-[testenv:pep8]
-# sphinx needs to be installed to make doc8 work properly
-deps =
-    {[testenv]deps}
-    -r{toxinidir}/doc/requirements.txt
-    yamllint
-commands =
-  {toxinidir}/tools/run-bashate.sh
-  flake8 {posargs}
-  doc8 doc/source
-  doc8 -e '.yaml' releasenotes/notes/
-  python {toxinidir}/tools/validate-all-file.py
-  bandit --skip B303 -r ansible kolla_ansible tests tools
-  yamllint -s .
-
-[testenv:bandit]
-# B303: Use of insecure MD2, MD4, MD5, or SHA1 hash function.
-commands = bandit --skip B303 -r ansible kolla_ansible tests tools
+  stestr run {posargs}
+  coverage combine
+  coverage html -d cover
+  coverage xml -o cover/coverage.xml
 
 [testenv:venv]
 deps =
@@ -74,7 +55,6 @@ commands =
 deps =
    -c{env:UPPER_CONSTRAINTS_FILE:https://releases.openstack.org/constraints/upper/master}
    -r{toxinidir}/doc/requirements.txt
-
 commands =
   rm -rf deploy-guide/build
   sphinx-build -a -E -W -d deploy-guide/build/doctrees --keep-going -b html deploy-guide/source deploy-guide/build/html
@@ -95,6 +75,36 @@ commands =
   rm -rf releasenotes/build
   sphinx-build -a -E -W -d releasenotes/build/doctrees --keep-going -b html releasenotes/source releasenotes/build/html
 
+[testenv:lower-constraints]
+deps =
+  -c{toxinidir}/lower-constraints.txt
+  -r{toxinidir}/test-requirements.txt
+  -r{toxinidir}/requirements.txt
+
+[testenv:linters]
+# Env vars and deps need to be defined in top level tox env
+setenv =
+  ANSIBLE_LIBRARY = {toxinidir}/ansible/library
+  ANSIBLE_ACTION_PLUGINS = {toxinidir}/ansible/action_plugins
+  ANSIBLE_FILTER_PLUGINS = {toxinidir}/ansible/filter_plugins
+deps =
+  -c{env:UPPER_CONSTRAINTS_FILE:https://releases.openstack.org/constraints/upper/master}
+  -r{toxinidir}/test-requirements.txt
+  -r{toxinidir}/doc/requirements.txt
+whitelist_externals = bash
+commands =
+  {[testenv:pep8]commands}
+  {[testenv:doc8]commands}
+  {[testenv:bandit]commands}
+  {[testenv:bashate]commands}
+  {[testenv:yamllint]commands}
+  {[testenv:ansible-lint]commands}
+
+[testenv:pep8]
+deps = {[testenv:linters]deps}
+commands =
+  flake8 {posargs}
+
 [flake8]
 show-source = True
 # NOTE: Default ignore list is *not* empty!
@@ -102,10 +112,32 @@ show-source = True
 # (W503 and W504 are incompatible and we need to choose one of them.
 #  Existing codes follows W503, so we disable W504.):
 ignore = W504
-exclude=.eggs,.git,.tox,doc
+exclude = .eggs,.git,.tox,doc
 
-[testenv:lower-constraints]
-deps =
-  -c{toxinidir}/lower-constraints.txt
-  -r{toxinidir}/test-requirements.txt
-  -r{toxinidir}/requirements.txt
+[testenv:doc8]
+deps = {[testenv:linters]deps}
+commands =
+  doc8 doc/source
+  doc8 -e '.yaml' releasenotes/notes/
+
+[testenv:bashate]
+deps = {[testenv:linters]deps}
+commands =
+  bash -c "{toxinidir}/tools/run-bashate.sh"
+
+[testenv:bandit]
+# B303: Use of insecure MD2, MD4, MD5, or SHA1 hash function.
+deps = {[testenv:linters]deps}
+commands = bandit --skip B303 -r ansible kolla_ansible tests tools
+
+[testenv:ansible-lint]
+# Lint only code in ansible/* - ignore tests/ and roles/ used by CI
+setenv = {[testenv:linters]setenv}
+deps = {[testenv:linters]deps}
+commands =
+  python {toxinidir}/tools/validate-all-file.py
+  ansible-lint -p --exclude {toxinidir}/tests --exclude {toxinidir}/roles
+
+[testenv:yamllint]
+deps = {[testenv:linters]deps}
+commands = yamllint -s .

zuul.d/project.yaml

@@ -5,6 +5,7 @@
       - openstack-cover-jobs
       - openstack-lower-constraints-jobs
       - openstack-python3-ussuri-jobs
+      - ansible-role-jobs
       - publish-openstack-docs-pti
       - release-notes-jobs-python3
       - periodic-stable-jobs