Fix kuryr CI

This commit contains the following fixes that unblock the CI:

* Migrate from testrepository to stestr. Most of the OpenStack
  projects has done this migration.
* Sync Sphinx requirement.
* Fix coverage job.

Change-Id: Ic85842035d9e049fd47d4842797f0c37dabaa520

.gitignore

@@ -48,6 +48,7 @@ ChangeLog
 !/.gitreview
 !/.mailmap
 !/.pylintrc
+!/.stestr.conf
 !/.testr.conf
 
 contrib/vagrant/.vagrant

.stestr.conf

@@ -0,0 +1,3 @@
+[DEFAULT]
+test_path=${OS_TEST_PATH:-./kuryr/tests/unit}
+top_dir=./

.testr.conf

@@ -1,4 +0,0 @@
-[DEFAULT]
-test_command=OS_STDOUT_CAPTURE=1 OS_STDERR_CAPTURE=1 OS_LOG_CAPTURE=1 ${PYTHON:-python} -m subunit.run discover -t ./ ${OS_TEST_PATH:-./kuryr/tests/unit} $LISTOPT $IDOPTION | cat
-test_id_option=--load-list $IDFILE
-test_list_option=--list

doc/requirements.txt

@@ -1,3 +1,4 @@
 openstackdocstheme>=1.18.1 # Apache-2.0
 reno>=2.5.0 # Apache-2.0
-sphinx!=1.6.6,>=1.6.2 # BSD
+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

test-requirements.txt

@@ -9,6 +9,6 @@ hacking!=0.13.0,<0.14,>=0.12.0 # Apache-2.0
 os-testr>=1.0.0 # Apache-2.0
 oslotest>=3.2.0 # Apache-2.0
 python-subunit>=1.0.0 # Apache-2.0/BSD
-testrepository>=0.0.18 # Apache-2.0/BSD
+stestr>=1.0.0 # Apache-2.0
 testscenarios>=0.4 # Apache-2.0/BSD
 testtools>=2.2.0 # MIT

tox.ini

@@ -18,7 +18,8 @@ deps =
 whitelist_externals = sh
                       find
 commands = find . -type f -name "*.py[c|o]" -delete
-           ostestr '{posargs}'
+           stestr run {posargs}
+           stestr slowest
 
 [testenv:fullstack]
 basepython = python2.7
@@ -46,9 +47,14 @@ commands = {posargs}
 
 [testenv:cover]
 basepython = python3
+setenv =
+    VIRTUAL_ENV={envdir}
+    PYTHON=coverage run --source kuryr --parallel-mode
 commands =
-  python setup.py test --coverage --testr-args='{posargs}' \
-    --coverage-package-name=kuryr.lib
+    stestr run {posargs}
+    coverage combine
+    coverage html -d cover
+    coverage xml -o cover/coverage.xml
     coverage report
 
 [testenv:docs]