Add local bindep.txt and py36-func-mysql job

As it was announced [1] global bindep-fallback.txt was removed and now
projects need to have a local bindep.txt to be able to install binary
dependencies for testing.

In test jobs the script tools/test-setup.sh is called which requires
mysql and postgres servers and clients to be installed.

To eliminate 'ERROR: InterpreterNotFound: python3.5' of the zuul job
refstack-tox-py35-func-mysql, simply replace the tox environment
py35-func-mysql to py36-func-mysql with a base python of 3.6 instead of
3.5 and rename the zuul job to contain py36 in the name.

Update the Zuul template to use nodejs6 jobs, this makes the single jobs
obsolete, remove them. Without this change, the gate will use
nodejs4 and fail.

[1] http://lists.openstack.org/pipermail/openstack-discuss/2019-June/007272.html

Change-Id: I90cb912befb9d09fed330bd8d27a491caffbf7b9

.zuul.yaml

@@ -1,6 +1,6 @@
 - project:
     templates:
-      - nodejs4-jobs
+      - nodejs6-jobs
       - publish-openstack-docs-pti
       - openstack-cover-jobs
       - openstack-python-jobs
@@ -9,19 +9,11 @@
     check:
       jobs:
         - refstack-tox-py27-func-mysql
-        - refstack-tox-py35-func-mysql
-        - nodejs-npm-run-lint:
-            vars:
-              node_version: 6
-            voting: false
-        - nodejs-npm-run-test:
-            vars:
-              node_version: 6
-            voting: false
+        - refstack-tox-py36-func-mysql
     gate:
       jobs:
         - refstack-tox-py27-func-mysql
-        - refstack-tox-py35-func-mysql
+        - refstack-tox-py36-func-mysql
 
 - job:
     name: refstack-tox-py27-func-mysql
@@ -38,15 +30,15 @@
       tox_envlist: py27-func-mysql
 
 - job:
-    name: refstack-tox-py35-func-mysql
+    name: refstack-tox-py36-func-mysql
     parent: openstack-tox
     description: |
-      Run unit tests for an OpenStack Python project under cPython version 3.5.
+      Run unit tests for an OpenStack Python project under cPython version 3.6.
 
-      Uses tox with the ``py35-func-mysql`` environment.
+      Uses tox with the ``py36-func-mysql`` environment.
     irrelevant-files:
       - ^.*\.rst$
       - ^doc/.*$
       - ^releasenotes/.*$
     vars:
-      tox_envlist: py35-func-mysql
+      tox_envlist: py36-func-mysql

bindep.txt

@@ -0,0 +1,8 @@
+# This is a cross-platform list tracking distribution packages needed for install and tests;
+# see https://docs.openstack.org/infra/bindep/ for additional information.
+
+mysql-client [platform:dpkg]
+mysql-server [platform:dpkg]
+postgresql
+postgresql-client [platform:dpkg]
+

tox.ini

@@ -2,7 +2,7 @@
 # py3* tests should be run before py27
 # it is a workaround for testr bug
 # https://bugs.launchpad.net/testrepository/+bug/1229445
-envlist = py35,py27,pep8,pip-check-reqs
+envlist = py35,py36,py27,pep8,pip-check-reqs
 minversion = 1.6
 skipsdist = True
 
@@ -28,8 +28,8 @@ setenv = SUBUNIT_TEST_PATH=./refstack/tests/api
 # require cleanup of database
 commands = {toxinidir}/setup-mysql-tests.sh python setup.py testr --slowest --testr-args='{posargs:--concurrency=1}'
 
-[testenv:py35-func-mysql]
-basepython = python3.5
+[testenv:py36-func-mysql]
+basepython = python3.6
 setenv = SUBUNIT_TEST_PATH=./refstack/tests/api
 # Integration/functional tests
 # must not be run in parallel (--concurrency=1),
@@ -93,3 +93,15 @@ commands = oslo_debug_helper -t refstack/tests/unit {posargs}
 [testenv:debug35]
 basepython = python3.5
 commands = oslo_debug_helper -t refstack/tests/unit {posargs}
+
+[testenv:bindep]
+basepython = python3
+# 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, and develop mode disabled
+# explicitly to avoid unnecessarily installing the checked-out repo too (this
+# further relies on "tox.skipsdist = True" above).
+deps = bindep
+commands = bindep test
+usedevelop = False