Add cover into zuul check

Change-Id: I00e6860674b165c9b6f7a33838df2a5e39444a42

.gitignore

@@ -22,3 +22,6 @@ doc/build
 # pbr generates these
 AUTHORS
 ChangeLog
+
+.coverage
+cover/

.zuul.yaml

@@ -38,6 +38,7 @@
 
 - project:
     templates:
+        - openstack-cover-jobs
         - openstack-python3-train-jobs
     check:
       jobs:

tox.ini

@@ -73,3 +73,17 @@ commands = bandit -r kolla_cli
 [testenv:docs]
 basepython = python3
 commands = ./builddocs.sh
+
+[testenv:cover]
+basepython = python3
+setenv = VIRTUAL_ENV={envdir}
+         NOSE_WITH_COVERAGE=1
+         NOSE_COVER_BRANCHES=1
+         NOSE_COVER_HTML=1
+         NOSE_COVER_HTML_DIR={toxinidir}/cover
+         PYTHON=coverage run --source kolla_cli --parallel-mode
+commands =
+    stestr run {posargs}
+    coverage combine
+    coverage html -d cover
+    coverage xml -o cover/coverage.xml